Nunes Instruments

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.

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

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 Description

VT-40 is the latest microprocessor based IC tester. It functionally tests a wide variety of Digital ics up to 40 pins and linear/analog ics up to 20 pins.

Extra Specification

• DISPLAY:16x2 Backlit Alphanumeric LCD
• KEYBOARD: 24 keys Membrane Keyboard
• PACKAGE: Digital ICs 14, 16, 20, 24, 28 & 40 Pin DIP and Analog/Linear ICs 6, 8, 14,16 & 20 Pin DIP
• DIGITAL IC RANGE: 74 series of TTL ICs, 40 and 45 series of CMOS ICs, Microprocessors
• (8085,8086,8088, Z80,6502) Peripheral ICs (8255,8253,8251,8259,8155,8279,Z80 PIO)
• EPROMs (blank check only), RAM ICs 6116,6264,62256 etc.,
• ANALOG IC RANGE : Operational Amplifiers, Comparators, Transistor Arrays, Optocouplers,
• Analog Switches, Multiplexers, Voltage followers, timers, cross point switches, ADC, DAC etc.,
• METHOD :Output test with simulated inputs and at nominal load Truth table comparison
• SOCKETS: 20 pin ZIF for Linear and 40 pin Universal ZIF for Digital Ics.
• VOLTAGE:230V 50Hz +/- 10%

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.

Product Description

Features:

· Memory for 32,700 readings

· LCD to show logging information easily

· Free selectable measurement cycle from 1sec to 24hrs

· Battery life : more than 3 years (Under Ideal condition at 22oC)

· Display all status for Alarm and Record through 2 LED’s

· Alarm display if user-defined max/min values are exceeded

· Analysis software used to view graphically or Text mode for logging data

· USB Computer Interface (Advanced Software Program for all windows)

Standard Accessory:

· Battery

· Holding Case

· Safety Lock

· USB Cable with Software

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.

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.

• Dew point or ppm_V moisture content
• -100 to +20°C (-148 to +68°F) dew point range
• Fast response
• Analog and digital outputs
• Dual alarms
• Easy to read display
• Excellent sensor protection
• NEMA 4 Transmitter, NEMA 12 Monitor (front panel only).

• 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 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.

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.

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 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.

• 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.

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

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.

Product Description

We have carved a niche amongst the most trusted names in this business, engaged in offering comprehensive range of Tong Tester. Since we have established our base in this highly competitive industry, we are readily engrossed in the arena of presenting an inclusive variety of Digital Tong Tester. Using best class basic material along with urbane tools, these are manufactured beneath the administration of skilled executives.

Specification : 

·         Display: 13 mm (0.5") LCD, 3 1/2 digits.

·         Max. indication 1999.

·         Measurement & Range: ACA, DCA, ACV, DCV, Resistance, Diode, Data hold, Peak hold.

·         Polarity: Automatic Switching, " - " indicates negative polarity

·         Current Sensor: Half effect sensor.

·         Sampling time: Approx. 0.4 second.

·         Dimension HWD : 230 x 70 x 36 mm.(9.1 x 2.8 x 1.4 inch)

·         Max. Conductor Size: 32 mm (1.3 inch) Dia.

·         Accessories: Operation manual,Test lead (red & black), carrying case .

Features:

·         Design meet IEC 1010 safety requirement.

·         Compact & heavy duty ABS housing plastic case.

·         Measure DCA & ACA on the inductive conductor.

·         Wide ranges ( 1000 A, 200 A ) for ACA/DCA measurement.

·         LSI circuit provides high reliability and durability.

·         Multi-functions for ACA, ACV, DCV, OHMS, Diode, Continuity beeper measurement.

·         LCD display allows clear readout even at high ambient light level.

·         Overload protection circuit is provided for all range.

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 V-Tech Industrial Display Board (Model: VT) is a rugged and reliable LED-based monitoring system designed for industrial environments. It clearly displays speed (Mpm) and efficiency (%), ensuring operators can easily track performance parameters. Built to withstand harsh operating conditions, the board supports multiple input signal types from sensors and operates within a wide temperature range. Its LED display technology ensures bright and legible readings, even in demanding production environments.

• Bright LED display for clear and accurate numerical data.

• Displays speed in Mpm and efficiency in % simultaneously.

• Designed for industrial monitoring and production tracking.

• Supports multiple input signals for flexible connectivity.

• Wide operating temperature range (-10°C to +50°C).

• Robust design with stable performance under continuous operation.

• Compatible with standard 220–240V AC supply at 50 Hz.

• Manufacturing plants for monitoring production speed and efficiency.

• Textile industry for real-time loom and machine performance tracking.

• Packaging and assembly lines for operational monitoring.

• Industrial automation systems requiring real-time parameter display.

• Quality control and process optimization setups.

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 Outdoor Dot Matrix LED Display Board is designed for clear and reliable visibility in industrial and outdoor environments. Featuring bright red high-intensity LEDs, the board displays messages, numerical data, or safety information on a large 140 mm digit format. Housed in a robust rectangular cabinet with industrial and dust resistance, it is protected by a 2 mm Lexan Polycarbonate front sheet. The board supports single-sided viewing and allows manual entry or scrolling messages via WIFI. A 2.5-meter power cable and mounting clamps are included for easy installation.

• Red high-bright dot matrix LED display for clear outdoor visibility.

• Large 140 mm digits for easy readability from a distance.

• Single-sided display, suitable for outdoor industrial conditions.

• Durable, dust-resistant cabinet with 2 mm Lexan front protection.

• Flange mounting with clamps included.

• Communication via WIFI for manual entry and scrolling messages.

• Standard 230V AC operation with 2.5-meter power cable.

• Industrial safety displays

• Outdoor process monitoring

• Construction site information boards

• Accident-free days or safety tracking displays

• Warehouse and factory messaging boards

The V-Tech Dot Matrix Production Display Board is designed for real-time performance monitoring in industrial and process control environments. With its dual-color red and green LEDs, it ensures quick and clear differentiation of displayed data. Built with a robust metal or acrylic frame, the board is durable and suitable for continuous industrial operation. Its control options, including touch buttons, numeric keypad, and IR remote, make it user-friendly and adaptable to diverse factory setups. The inclusion of microcontroller-based technology ensures reliability and smooth functionality for critical production monitoring.

• High-brightness red and green LEDs with excellent visibility.

• Displays production metrics such as GOAL, ACTUAL, and TIME.

• Operates on 8-bit microcontroller technology for stability.

• Supports running/moving display modes for enhanced visibility.

• Multiple control options: touch buttons, keypad, or IR remote.

• Rugged rectangular frame made of metal or acrylic.

• Suitable for demanding industrial and process environments.

• Manufacturing plants for production tracking.

• Assembly lines to display targets vs. achieved counts.

• Process industries for real-time parameter monitoring.

• Shop floors to enhance workforce awareness and efficiency.

• Warehouses and logistics centers for time and task management.

Production Engineering :

This is a armed wheel type strain gauge based Drill Tool Dynamometer designed to measure Thrust & Torque during drilling operation and effect of speed, feed cut on these forces. The unit consists a mechanical sensing unit or tool holder and digital force indicator. The job can be mounted on a workplace holder on mechanical sensing unit. The unit is useful for drilling up to 25 mm dia

Specifications :

• Mechanical Sensing Unit with Job Holder with strain Gauges mounted on it.
• Digital Force Indicator – two channel, to read both thrust and torque simultaneously.
• Balancing Potentiometer for initial balancing
• Range – thrust – 0 to 200 Kg, torque – 0 to 20 Kg m, least count – 1 Kg.
• The set up is calibrated at our works with the help of standard Proving Ring.

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.

1.Features:

-Measurement active pow er

-Monitoring the   active  power value

-Calculation power  factor value

-Over current  protection

-Record total time electricity

-Calculation carbon dioxide emissios

-Setting load alarm limit

-LCD display back light

2. Selection of Model Funct ion:

Model : Electric Quantity Voltage Current Frequency Power Factor Power CO2 Emission Overload 1A 220W 0.001W

3. Specifications:

Nominal voltage: 220V/50Hz;

Measurement range: 180.0V 260.0V;

Rated current: 1A/10A/16A

Measurement range of electric quantity: 0.000 9999KWh;

Power factor: 0.001 1.000;

Measurement range of CO2 output volume: 0.000 9999Kg

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.

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.