Nunes Instruments

Product Description
All Types of Multimeters available.

Fluke 15B Digital Multimeter With the launch of 15B Digital Multimeters in India, Fluke offers features most often needed for troubleshooting most of day to day electrical and electronics problems. T15B DMM is specially designed for Indian technicians keeping in mind their requirements for quick and easy troubleshooting.

15B offers features like AC/DC voltage measurement along with functions like diode test, capacitance measurement and continuity detection. Simple to use and large LCD display along with many other user friendly benefits makes the 15B DMM a true companion 15B DMM is highly affordable and is easily available

Feature:

• Basic dc accuracy
• Digital display to 4,000 words
• Automatic and manual range
• Display hold function
• Diode and continuity test with buzzer
• Cover designed for easy hanging
• Category safety rating: IEC 1010-1: CAT I 1000 V, CAT II 600 V, CAT III 300 V
• Automatic shutdown
• Easily replaceable battery design
• 500 hours battery life
• Voltage AC, Voltage DC, resistance, capacitance, continuity beeper, diode test, A ac, A dc all
• in a durable holster
• Rugged and durable design – all inputs, ranges and functions are protected up to 1000 V
• Batteries and user''s manual included
• V ac Range 0.1 mV to 1000 V Best Accuracy ± (1.0 % + 3 counts) AC Response 40 Hz to 500 Hz
• V dc Range 0.1 mV to 1000 V Best Accuracy ± (0.5 % + 3 counts) AC Response 0.1 Ω to 40 MΩ
• Ohms Range 0.1 Ω to 40 MΩ Best Accuracy ± (0.4 % + 2 counts)

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Production Engineering :

This is a strain Gauge Type two/three component Lathe Tool Dynamometer designed to measure vertical & horizontal/(radial force in case of three component) forces on tool while orthogonal cutting process. The unit consists a mechanical sensing unit or tool holder and digital force indicator. With this dynamometer, students can study the change in these forces due to change in speed, feed and depth of cut.

Specifications:

Mechanical Sensing Unit with Tool Holder and Tool with strain Gauges mounted on it. Digital Force Indicator - two/three channel, to read both forces simultaneously. Balancing Potentiometer for initial balancing Range - 0 to 200 Kg, least count - 1 Kg. The set up is calibrated at our works with the help of standard Proving Ring.

Optional:

We can provide temperature indicator with thermocouple for measurement

of tool tip temperature at extra cost.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Product Details:

Our premium quality range of Electrical Motor Tester is appreciated by our clients for its high efficiency and computerizes operation. We offer our complete range of Electrical Motor Tester suitable for small and large motors. Various kinds of standards tests in Electrical Motor Tester are dielectric strength, insulation resistance, and digital ohmmeter with delta T ground efficiency. In addition, these testers are also perfect for power measurements, detection of the number of turns, sense of rotation, and detection of noise level.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

• Vibration Level 0.5 to 2.0 mm level amplitude and 3D – shifting motion
• Ideal for particle size analysis & separation
• Very low noise operation with low maintenance
• Suitable for dry & wet sieving
• Intermittent and continuous mode, 20*4 line LCD Display
• Microprocssor Base control System

The LED Air Quality Display Board is designed for outdoor industrial or municipal environments to provide real-time air quality information. With a configurable pixel pitch (6 mm or 10 mm) and single or multicolor LED options, the display ensures high visibility from a distance. It can show key air quality metrics using large characters (e.g., 70 mm high) and may also support text, images, videos, or data from Excel for advanced models. Communication is flexible via Modbus RS 485 or LAN, allowing remote configuration or manual data entry. Rugged steel or aluminum construction with IP-rated protection ensures durability in outdoor conditions. Flange-type clamp mounting or wall installation allows secure placement.

• High-brightness LED display for outdoor air quality monitoring

• Configurable pixel pitch (6 mm or 10 mm) for clarity at different distances

• Single or multicolor display options for numeric or textual data

• Displays air quality metrics with large characters/digits

• Supports advanced content: text, images, videos, Excel data

• Flexible communication: Modbus RS 485 or LAN

• Robust steel/aluminum construction with IP65 protection

• Flange-type or wall-mounted installation

• Long lifespan (>100,000 hours)

• Energy-efficient operation

• Outdoor environmental monitoring stations

• Municipal or city air quality display boards

• Industrial plants displaying air quality indices

• Public awareness signage for pollution levels

• High-traffic outdoor areas requiring real-time environmental updates

The Token Display System is a reliable queue management solution designed for offices, clinics, service centers, and other customer-facing facilities. Featuring a bright 4-digit LED display, it ensures token numbers are clearly visible from a distance. The system is equipped with a tactile keypad for smooth token number entry, supporting functions such as increment, decrement, and repeat. For customer notification, an integrated ding-dong alert sound effectively signals the next token, making it suitable for medium-sized environments.

The system is available in both wired and wireless configurations, providing flexibility for single or multiple counter setups. Wireless models eliminate messy cabling while still maintaining seamless connectivity.

• Bright 4-digit LED display for token visibility

• Tactile keypad for easy and reliable number entry

• Supports increment, decrement, and repeat functions

• Audible alert (ding dong/bell) for effective token call-out

• Wireless option available for flexible installation

• Durable components including calling unit and display unit

• Hospitals and clinics

• Banks and financial institutions

• Service counters and customer care centers

• Government offices

• Ticketing counters and retail outlets

The Queue Management Token Display System is an efficient solution designed to streamline customer flow across various service points. It features a 3-digit, 4-inch high LED display in bright red for clear visibility in large rooms. The numeric keypad console allows quick entry of token numbers, with some models including a mini-display for operator convenience.

To enhance accessibility, the system integrates voice announcements (in Hindi, English, or multiple languages) with adjustable volume, ensuring customers are promptly guided to counters. The system supports both wired (RS232/RS485/RJ12) and wireless connectivity, providing flexibility in installation. Powered via 220–240V AC or DC 12V/2A adapter, it is suitable for continuous use.

Designed for wall mounting, this system is widely adopted in public service and commercial facilities where managing queues efficiently is essential.

• 3-digit LED display with large 4-inch red characters for maximum visibility

• Numeric keypad console for easy operation (optional mini-display for input confirmation)

• Voice announcement system in multiple languages with volume control

• Connectivity options: Wired (RS232, RS485, RJ12) or wireless for flexible setup

• Dual power options: AC 220–240V or DC 12V/2A adapter

• Wall-mount design for space-saving installation

• Durable build for continuous, heavy-duty operation

• Hospitals and clinics

• Banks and financial institutions

• Government service centers

• Ticket counters and retail outlets

• Offices with high customer traffic

The Advanced Token Display System is designed to efficiently manage queues in busy environments. Featuring 7-segment red LED displays, it provides clear visibility of token numbers from a distance. The system is wall-mountable, optimizing space and customer line-of-sight.

With wired (RS232) or wireless (Wi-Fi/Bluetooth) connectivity options, it can integrate seamlessly with existing queue management software and other display units. Advanced models offer voice announcements in multiple languages, adjustable character sizes, and can operate under specific temperature conditions for reliable performance.

Powered through standard AC 220–240V or low-voltage DC, the system is adaptable to various setups while ensuring continuous operation. It is widely used in hospitals, banks, service centers, and retail outlets to improve customer service efficiency.

• Clear 7-segment red LED display for easy readability

• Wall-mount design for optimal visibility and space utilization

• Multiple connectivity options: Wired (RS232) and wireless (Wi-Fi/Bluetooth)

• Voice announcement system supporting multiple languages

• Adjustable character sizes for different viewing distances

• Can operate in varied temperature ranges

• Reliable AC or DC power supply options

• Hospitals and clinics

• Banks and financial institutions

• Government service centers

• Ticketing counters and retail outlets

• Offices with high customer traffic

The Voice-Enabled 3-Digit Token Display System is a versatile queue management solution for small to medium service environments. It features a 3-digit LED display with 4-inch high characters, ensuring token numbers are visible from a distance.

The system integrates a voice announcement module, capable of broadcasting messages in multiple languages including Hindi, English, and various regional languages, with volume control. Users can select female voice announcements for enhanced clarity and customer friendliness.

Connectivity options include wired RJ12 cables or wireless configuration, offering flexible installation across service counters. The built-in 5W speaker ensures that token announcements are clearly audible in moderately sized areas. Operating on DC 12V/2A, the system is energy-efficient and reliable for continuous usage.

• 3-digit LED display with 4-inch red characters

• Multi-language voice announcements, including female voice option

• Volume control for clear audibility

• Flexible connectivity: wired or wireless

• Built-in 5W speaker for clear audio output

• DC 12V/2A power supply for reliable operation

• Ideal for hospitals, clinics, cafes, and restaurants

• Hospitals and clinics

• Cafes and restaurants

• Customer service counters

• Small to medium service areas requiring queue management

The 4-Digit LED Digital Display System is designed for clear visibility and reliable performance in industrial, commercial, and institutional environments. Featuring large 4 × 2.3-inch digits, the LED display ensures that time or numerical data is easily visible from a distance.

Models configured as clocks can support both 12-hour and 24-hour time formats, while optional variants may include an alarm output (220V AC) for event-based signaling. Calibration and adjustments are performed through a built-in key panel, allowing easy setup and maintenance.

The system is powered by 220V AC, 50Hz ±10% and is designed for hanging installation, making it suitable for use in factories, schools, hospitals, offices, and public spaces.

• 4-digit LED display with large 4 × 2.3-inch characters

• Supports 12-hour and 24-hour time formats (in clock models)

• Built-in key panel for calibration and adjustments

• Optional alarm output (220V AC) for event alerts

• Hanging suspension design for versatile installation

• Operates on 220V AC, 50Hz ±10% supply

• Industrial production monitoring

• Hospitals and clinics

• Schools and educational institutions

• Offices and commercial centers

• Public spaces requiring digital time or number displays

The V-Tech Multi-Zone Temperature LED Display is designed for precise environmental monitoring in industrial settings. Using a polymer humidity capacitor sensor, it provides accurate temperature readings (±1.5°C) and humidity levels (±5%RH). The bright red LED display clearly shows temperature data for multiple zones, making it ideal for factories, production lines, and other industrial applications. Known for reliable performance and quality, V-Tech ensures robust construction and after-sales support.

Key Features

• Accurate temperature and humidity monitoring for multiple zones

• Bright red LED display for high visibility

• ±1.5°C temperature accuracy; ±5%RH humidity accuracy

• Multi-zone display (Zone 1, Zone 2, Zone 3)

• Suitable for industrial monitoring and controlled environments

• Durable, factory-grade construction

• Manufactured by V-Tech, known for quality and support in India

Applications

• Factories and production lines with multiple temperature zones

• Industrial monitoring and process control

• Warehouses or cold storage monitoring

• Laboratories requiring multi-zone temperature display

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Features :
• 3½ digits LCD display
• Accurate measurement
• Easy to configure
• Easy to use
• Feather touch buttons
• 1999 count
• Displays when there is overload (OL)
• Approximately 100 hrs of Battery life
• Used For: Research purpose, Navigation, Industrial application, Detecting electric field pollution. 

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Application

Digital Earth Resistance Tester is designed to measure the resistance if earth used in power circuit, Telecommunications, Railway Electrification, Domestic and Industrial electrical installations. The tester measures directly the resistance of the earth and also measure the ground resistivity. The study, elegant and compact body makes the instrument portable, easy to use, Hand-held instrument.

Salient Features

Rugged ABS body

Easy to use hand held meter

Ni-cd Re- chargeable Cells

Facility as to make bench top type instrument

Confirms to ISS : 9223/1979

Four terminals (To measure earth resistance as well as specic soil resistivity)

Lo-Bat or indication appears on Display indicating that the indicating the the cells (batteries) have gone down, which can be recharged by connecting to 230V, 50 Hz AC mains supply

through charging cord provided with the instrument

Technical Details

Display 3 1/2Digits, LCD 0% to 10% of the range +-3%

Accuracy 10% to 90% of the range +-1.5% 90% to 100% of the range +-3%

Dimensions (in mm) 172 x 98 x 38 (Approx.)

Weight 575 gm (Approx.)

Electrical Speci cation

H. V. Test 2KV AC (rms) for 1 min. between electrical

circuit and containing case

Insulation Resistance

Test More than 25 Megohms at 500 V DC between

electrical circuit & containing case

Accessories

Standard Accessories Carrying Case Charging Cord

Optional Accessories (at extra cost)

· Instruction Manual

· 4 Nos. M. S. Spike (45 cm Length)

· 1 Nos. Hammer

· 4 Nos. Cable (50 feet)

· 1 No. Plier

· 1 Nos. Screwdriver, all in one canvas bag

Any other combination of ranges can also be made on specification requirement

Guarantee

Guaranteed for 12 (twelve) months against any manufacturing defects

Dual Ranges

0 - 20 - 200 OHM

0 - 10 - 1000 OHM

0 - 100 - 1000 OHM

0 - 5 - 500 OHM

0 - 10 - 100 OHM

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

• Clamp opens 52mm
• Large LCD Display
• Full function protection, strong Anti-Interferential
• Performance.
• Data Hold
• Clamp Light and Backlight display  

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

The VT 395 handheld meter features sophisticated circuitry that produces

higher accuracy than other pocket-sized meters.  This allows for the same

advantages as megohmmeters, but at an economical price.

Utilizing color-coded zones, the LED scale is easy to read and interpret. 

Half decade measurements give a closer indication to actual value.  A

specially colored “warning” stage alerts the auditor to material

approaching the upper end of the dissipative scale, so that it can be

designated as nearly out of specifcation.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Four Probe Method:Resistivity of Semiconductor by Four Probe Method at different temperatures and determination of the Band-gap

The Four Probe Method is one of the standard and most widely used method for the measurement of resistivity of semiconductors. The experimental arrangement is illustrated. In its useful form, the four probes are collinear. The error due to contact resistance, which is specially serious in the electrical measurement on semiconductors, is avoided by the use of two extra contacts (probes) between the current contacts. In this arrangement the contact resistance may all be high compare to the sample resistance, but as long as the resistance of the sample and contact resistances are small compared with the effective resistance of the voltage measuring device (potentiometer, electrometer or electronic voltmeter), the measured value will remain unaffected. Because of pressure contacts, the arrangement is also specially useful for quick measurement on different samples or sampling different parts of the same sample.

Description of the experimental set-up

1. Probes Arrangement

It has four individually spring loaded probes. The probes are collinear and equally spaced. The probes are mounted in a teflon bush, which ensure a good electrical insulation between the probes. A teflon spacer near the tips is also provided to keep the probes at equal distance. The whole – arrangement is mounted on a suitable stand and leads are provided for the voltage measurement.

2. Sample

Germanium crystal in the form of a chip

3. Oven

It is a small oven for the variation of temperature of the crystal from the room temperature to about

200°C (max.)

4. Four Probe Set-up, DFP-02

The set-up consists of three units in the same cabinet.

(i) Multirange Digital Voltmeter

In this unit, intersil 3½ digit single chip A/D Converter ICL 7107 has been used. It has high accuracy like auto zero to less than 10μV, zero drift of less than 1μV/ °C, input bias current of 10pA max. and roll-over error of less than one count. Since the use of internal reference causes the degradation in performance due to internal heating, an external reference has been used.

(ii) Constant Current Generator

It is an IC regulated current generator to provide a constant current to the outer probes irrespective of the changing resistance of the sample due to change in temperatures. The basic scheme is to use the feedback principle to limit the load current of the supply to preset maximum value. Variations in the current are achieved by a potentiometer included for that purpose. The supply is a highly regulated and practically ripple free d.c. source. The current is measured by the digital panel meter.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairswith 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

• The VT5000 series power meters are the new benchmark in affordable, precision metering. It is the ideal fit for high-end cost management applications, providing the measurement capabilities needed to allocate energy usage, perform tenant metering and sub-billing, pin-point energy savings, optimize equipment efficiency and utilization, and perform a high level assessment of the power quality in an electrical network.Characteristics
• Accuracy class 0.2S (VT5500 models) and 0.5S (VT5100, VT5300 models) for active energy metering
• Compliance to regulations EN50470-1/3 (MID), IEC 61557-12, IEC 62053-21/22, IEC 62053-23
• Dual Ethernet ports (VT5500 models) to daisy chain meters together - less wiring, simpler installation
• Onboard web pages (VT5500 models) for viewing real-time and logged information
• Data logging (VT5300, VT5500 models) locally in non-volatile memory ensures that information is not lost during a power or communications outage
• Multiple tariffs (VT5300, VT5500 models) give you flexibility in your billing structure
• Individual harmonics in addition to THD and TDD to help locate the source of disturbances
• Graphical display with intuitive menu-driven navigation means information is easy to locate and read
• Compact design, two clips for mounting4 current inputs (VT5500 models)
• Extended voltage range (direct connection up to 690 V L-L)
• Real-time clock with battery back up

• Comprehensive, consistent and superior performance with compliance to international metering standard IEC 61557
• Precision metering & sub-billing thanks to energy metering compliance to IEC 61052/53 ranging from 0.5S to 0.2S
• Help save on energy costs through demand logging with timestamp, alarms and relays
• Billing flexibility with compliance to MID and support for up to 8 different tariffs
• Improve electrical network management with power quality analysis features
• Ease of use with intuitive menu-driven navigation and support for 8 different languages
• Complete WAGES monitoring due to 4 Digital Inputs & 2 Digital outputs (solid state)
• Seamless integration with StruxureWare Power Monitoring Expert 7 power management software

Panel builders benefit

• Ease of installation thanks to numerous design features means less time to install and more savings
• Ease of programming due to an enhanced, intuitive, menu-driven graphical user-interface
• Cost effectiveness for the price sensitive panel builder, as a single product or product family can meet the majority of requirements
• Aesthetically pleasing offer to help boost the panel builders’ image and reputation
• Simplified ordering for a comprehensive set of features in the best combinations - no feature overlap with option modules

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. Why not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

EC Specifications

EC Range 0 to 1999 S/cm, 0.0 to 199.9 mS/cm, 0.0 to 199.9 S/cm, 0.00 to 19.99 mS/cm

EC Resolution 0.1 S/cm, 1 S/cm, 0.01 mS/cm, 0.1 mS/cm

EC Accuracy (@25C/77F) +-1% FS (excluding probe error)

EC Calibration manual, one point

EC Temperature Compensation automatic, 0 to 50 DegreeC (32 to 122 DegreeF) with user- selectable coefficients between 0 to 2.5 %/ DegreeC

Resistivity Specifications

Resistivity Range 0 to 19.90 M-cm

Resistivity Resolution 0.10 M-cm

Resistivity Accuracy +-2% FS

Resistivity Calibration manual, one point

Resistivity Temperature Compensation automatic, 0 to 50 DegreeC (32 to 122 DegreeF) with

user-selectable coefficients between 2 to 7 %/ DegreeC

Additional Specifications

Electrode/Probe VT-HI76303 platinum four-ring conductivity probe with internal

temperature sensor, DIN connector and 1 m (3.3'') cable (included); VT-HI3316D

resistivity probe with internal temperature sensor, DIN connector and 1 m (3.3'') cable (included)

Environment 0 to 50 DegreeC (32 to 122 DegreeF), RH max 95% non-condensing

Power Supply 12 VDC adapter (included)

Dimensions 235 x 222 x 109 mm (9.2 x 8.7 x 4.3")

Weight 1.3 kg (2.9 lbs.)

Ordering Information HI2316 is supplied with VT-HI76303 conductivity probe,

VT-HI3316D resistivity probe, 12 VDC adapter, and instruction manual

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

INTRODUCTION
These Armature Growler Tester are made by using very high quality raw material which ensures high durability at its user end. These armature growler tester are widely finds its application in industrial and commercial sectors. When an alternating current is passed through a Growler, it sets up a magnetic flux in the iron of the armature or stator spanned by the jaws of the Growler. As this flux passes through any coil, it induces a potential

FEATURES

• Armature DIA: 20mm to 100 mm
• Available for higher ratings motors
• Durable
• Easy to use
• Volts220/230

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

• An immersion type portable battery operated temperature measuring
• system for any molten metal with wireless additional large displa.
• Handy, light Weight and compact
• Automatic Power-Off function
• Battery Voltage status display
• Measures the temperature by contact type thermocouple
• The measured temperature on the portable pyrometer will be transmitted to additional large display via wireless communication
• For temperature measurement of molten Steel, Cast Iron, Copper, Brass,Bronze, Aluminum, etc

• Plateau detection technique for accurate temperature measurement
• Intelligent Self Calibration
• Local display of temperature on portable pyrometer
• Additional remote 4 inch height large display unit for temperature
• No long compensating cable from Lance to the pyrometer
• Eliminates wiring cost
• Eliminates downtime caused by breaking or burning or shorting problem of wires

• Portable pyrometer with local display
• Type "S" Pt v/s Pt 10% Rh or
• Type "R" Pt v/s Pt 13% Rh
• Type "K" Chromel Alumel

• Large Display Unit to display the temperature readings
• With wireless receiver
• Mounted on a wall or in a panel

• Off line Interface: In this mode the stores the temperature reading along with date, time & heat-number in memory (500 Readings) & can transfer this stored data as & when required to your computer via Rs232 serial interface

• Temperature Sensors : As per application.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

• PC Based Token calling Display System.
• Voice available - voice or Ding dong sound
• Digit size- 4 Inch
• Display Color- Red
• 7 segment module- chip Led
• Calling Device PC based SW calling
• Less maintenance and error free.
• Communication- wired and wireless both options available.
• No need of calling Hardware Keyap Unit.

• The surface resistance meter uses precision spaced parallel bars positioned on the back for sensing surface resistivity.
• measures both surface resistivity and resistance to ground
• Easy to use, no cable or probes to adjust
• Extended range of direct readings in ohms per square for surface resistivity measurement and in ohms for resistance to ground
• Pocket size prtable meterThe pocket resistivity Meter,with test rang from 103 Ohms per square to 1012 Ohms per square, with accuracy±10 Decade.

A DC Network Analyzer is a precision instrument designed to analyze direct current (DC) electrical networks. It is used to measure parameters like voltage, current, resistance, and impedance across components, offering detailed insights into circuit performance.

Key Features:

1. Precise Measurements: Provides accurate readings of DC voltage, current, and resistance.
2. Wide Measurement Range: Capable of analyzing a variety of DC circuits and components.
3. Real-Time Monitoring: Displays real-time data for immediate analysis and troubleshooting.
4. User-Friendly Interface: Easy-to-read digital display with simple controls for efficient operation.
5. Data Logging: Some models store measurement data for further analysis or reporting.
6. Portable Design: Compact and lightweight, suitable for field and lab applications.
7. Multiple Test Functions: Includes features for impedance, voltage drop, and other critical DC network measurements.

The Novotest Gaussmeter-Magnetometer is a precision instrument used to measure magnetic fields' strength and direction. It is designed for industrial and laboratory use, providing accurate, real-time readings of magnetic field intensity.

Key Features:

1. High Accuracy: Delivers precise magnetic field measurements in various units (Gauss, Tesla).
2. Wide Measurement Range: Suitable for measuring weak to strong magnetic fields.
3. User-Friendly Interface: Easy-to-read display and simple controls for efficient operation.
4. Portable and Compact: Lightweight design for easy transport and on-site use.
5. Durable Construction: Built to withstand tough industrial environments and field conditions.
6. Real-Time Data: Provides instant readings for immediate analysis and testing.
7. Versatile Applications: Ideal for use in material testing, equipment diagnostics, and research.

The Refrigeration Wiring Skills Trainer is an advanced, hands-on educational tool designed to provide students and technicians with practical experience in the electrical wiring of refrigeration systems. This trainer is ideal for training environments in vocational schools, technical colleges, and industrial workshops. It offers a comprehensive, real-world simulation of refrigeration system wiring and allows learners to understand electrical components and circuits critical to refrigeration technology.

Key Features:

• Realistic Refrigeration System: The trainer replicates a complete refrigeration circuit, including compressors, thermostats, fans, and relays, providing users with the opportunity to work on a system that mirrors actual industrial units.
• Interactive Learning: Students can gain practical experience in wiring, troubleshooting, and maintaining refrigeration electrical systems, enhancing their understanding of system controls and electrical safety.
• Comprehensive Wiring Components: The trainer includes a range of electrical components, such as terminal blocks, switches, capacitors, fuses, and control boards, enabling students to wire and connect each part correctly and effectively.

A Bistable Multivibrator is an electronic circuit that has two stable states. It can be triggered to switch between these two states and remains in the current state until another trigger occurs. It's commonly used in memory storage, switching applications, and as a flip-flop in digital electronics.

Key Features:

1. Dual Stable States: Can remain in either high or low state without requiring continuous input.
2. Used for Data Storage: Stores binary data in memory circuits.
3. Switching Functionality: Acts as a simple switch between two states (set/reset).
4. Low Power Consumption: Efficient in terms of energy usage in low-power applications.
5. Triggering Mechanism: Operates through external trigger signals to change states.
6. Versatile Applications: Found in counters, registers, and memory devices.

An Inverting and Non-Inverting Amplifier are configurations of an Operational Amplifier (Op-Amp) used to amplify input signals. The inverting amplifier produces an output signal that is 180° out of phase with the input, while the non-inverting amplifier preserves the input signal's phase. Both are widely used in audio, signal processing, and instrumentation systems.

Key Features:

1. Inverting Configuration: Output is inverted relative to input, with a phase shift of 180°.
2. Non-Inverting Configuration: Output signal remains in phase with the input.
3. Voltage Amplification: Provides controlled amplification of weak input signals.
4. High Input Impedance: Ensures minimal loading on the input signal source.
5. Low Output Impedance: Ensures efficient signal transfer to subsequent stages.
6. Adjustable Gain: Gain can be varied using external resistors.
7. Versatile Applications: Used in audio amplifiers, filters, signal conditioning, and voltage followers.

The Thermocouple Trainer Kit is an educational tool designed to demonstrate the principles of temperature measurement using thermocouples. It includes various components for understanding the functionality, calibration, and operation of thermocouples in temperature sensing applications. This kit is ideal for students and professionals learning about temperature sensors and instrumentation.

Key Features:

1. Practical Learning: Hands-on experience with thermocouples for temperature measurement.
2. Versatile Thermocouple Types: Supports different thermocouple types (e.g., Type K, J, T).
3. Calibration Capability: Allows users to calibrate thermocouples and test their accuracy.
4. Temperature Range: Measures a wide range of temperatures, from low to high.
5. Digital Display: Features a digital readout for easy and precise temperature monitoring.
6. Educational Focus: Includes manuals and guides for understanding thermocouple operation.
7. Compact & Portable: Easy to set up and move for classroom or laboratory use.

The Pulse RF LoRaWAN Module is a low-power, long-range communication device designed for Internet of Things (IoT) applications. It utilizes LoRaWAN technology to provide reliable and secure wireless data transmission over long distances with minimal energy consumption. Ideal for smart city, agriculture, and industrial IoT solutions, the module offers seamless integration for remote monitoring and control.

Key Features:

1. Long-Range Communication: Provides reliable data transmission over distances up to 15+ km in open space.
2. Low Power Consumption: Designed for battery-operated devices, offering extended battery life (up to 10 years).
3. LoRaWAN Protocol: Fully compatible with LoRaWAN networks, ensuring scalability and ease of integration.
4. Wide Frequency Support: Operates on various frequencies, including 868 MHz, 915 MHz, and others, based on regional requirements.
5. Secure Data Transmission: Features AES encryption for secure end-to-end communication.
6. Compact and Robust: Small form factor with IP-rated housing for use in rugged environments.

The Digital Push Pull Gauge is a high-precision electronic device designed to measure forces applied in both push and pull directions. It offers digital readouts for easy and accurate force measurements, making it ideal for testing materials, machinery, and product assemblies in various industries such as automotive, manufacturing, and research.

Key Features:

1. Digital Display: Clear, easy-to-read digital readout for accurate force measurements.
2. High Precision: Delivers precise force measurements with minimal error, ensuring reliability.
3. Push/Pull Capability: Measures both push and pull forces, providing versatile functionality.
4. Wide Force Range: Available in a variety of force ranges to suit different testing needs.
5. Portable and Lightweight: Compact design for easy handling and transport.
6. Data Hold Function: Allows users to freeze the reading for easier analysis.

An electric sterilizer is a laboratory device used to sterilize equipment, tools, and materials using heat. It operates electrically to reach and maintain high temperatures for effective sterilization, ensuring the safety and hygiene of laboratory environments, particularly in microbiological and medical settings.

Key Features:

1. Efficient Heat Sterilization: Uses high temperatures (typically 160-180°C) to effectively sterilize instruments.
2. Rapid Heating: Quick temperature rise to reduce waiting time and enhance efficiency.
3. Adjustable Temperature Control: Allows precise temperature settings to suit different sterilization needs.
4. Safety Features: Includes over-temperature and overheating protection to prevent accidents.
5. Durable Construction: Made from corrosion-resistant and heat-resistant materials for long-lasting use.
6. Digital Display and Controls: Easy-to-read digital interface for accurate settings and monitoring.
7. Energy Efficient: Designed to minimize power consumption while maintaining optimal sterilization conditions.

The Universal IC Tester is a versatile and advanced testing device designed for industrial applications, capable of testing 600+ ICs with high accuracy. This digital IC tester ensures reliable performance for engineers, technicians, and electronics professionals, making it an essential tool for R&D labs, manufacturing, and repair centers.

• Extensive IC Compatibility: Tests a wide range of digital ICs, including 74 Series, 40/45 Series ICs.
• Microprocessor & Peripheral Testing: Supports 8085, 8086, Z80 microprocessors and peripherals like 8255, 8279, 8253, 8259, 8251, 8155, 6264, 62256, 8288, 8284.
• Analog & Display Component Testing: Efficiently tests Op-Amps, 555 timers, Transistor Arrays, Analog Switches, Opto Couplers, and Seven-Segment Displays (Common Cathode & Common Anode).
• Auto Search Function: Automatically identifies digital ICs for quick testing.
• User-Friendly Interface: Equipped with a 40-pin DIP ZIF socket for easy IC insertion.
• Convenient Keypad Control: 28-membrane key keypad with numerical & functional keys for smooth operation.
• Clear Display: 9-Digit Seven-Segment Display for easy reading of test results.
• Reliable Power Supply: Operates at 230V AC, ensuring stable performance

The Digital Counter is a versatile electronic instrument designed for counting, speed indication, and process monitoring in industrial environments. Featuring a clear 7-segment LED display, it allows real-time numerical readouts and supports various sensor inputs such as proximity switches and infrared detectors.

These counters are programmable, enabling customized scaling, operational modes, and alarm triggers. Advanced models integrate with larger automation systems via RS-485/RS-232 interfaces using the Modbus RTU protocol. Housed in a rugged panel-mount design, it ensures easy integration into control panels and operator stations.

• Bright and clear 7-segment LED display for easy readability

• Compatible with a wide range of input sensors

• Programmable for diverse applications and threshold settings

• Supports both relay and SSR outputs for flexible control

• Communication-enabled models allow system integration via RS-485/RS-232

• Operates on standard 220–230V AC power

• Compact and durable panel-mounted form factor

• Industrial process control and automation

• Machine cycle and production counting

• Speed and RPM indication

• Batch and quantity control systems

• Packaging, labeling, and assembly lines

• Integration into PLC or SCADA systems

This Outdoor LED Display Panel is designed for long-term outdoor usage with high visibility and durability. With a module lifespan of up to 10 years, it consumes 60–80 W per module and operates on standard 230 VAC, 50 Hz input. The panel can be ordered in units as small as 1 sq ft and is supported for service at all locations. Ideal for advertising, information display, or industrial messaging, this LED panel ensures reliable performance in outdoor environments.

Key Features

• Long-lasting LED modules with 10-year life span

• Low power consumption (60–80 W per module)

• Input power: 230 VAC, 50 Hz for easy integration

• Single or full-color options with high brightness suitable for outdoor visibility

• Flexible installation: wall-mounted, hanging, or freestanding

• Minimum order quantity: 1 sq ft for modular scalability

• 1-year warranty and support at all service locations

Applications

• Outdoor advertisements and billboards

• Industrial and commercial information displays

• Public information boards in parks, highways, and stadiums

• Event signage and promotional displays

• Transportation hubs (bus stations, railway stations, airports)