# Title: Picotest M3500A High-Precision 6½ Digit Digital Multimeter ## Description: High-Precision Laboratory-Grade Digital Multimeter The Picotest M3500A delivers exceptional measurement accuracy with 6½ digit resolution at a fraction of the cost of comparable instruments. This professional-grade digital multimeter combines the precision of 7½ digit techniques with the affordability needed for R&D, calibration, and production environments. Advanced Measurement Capabilities Function Range Accuracy (1 year) Resolution DC Voltage 100 mV to 1000 V 0.0035% + 0.0005% 0.1 µV to 1 mV AC Voltage (True RMS) 100 mV to 750 V 0.06% + 0.04% 0.1 µV to 1 mV DC Current 10 mA to 3 A 0.05% + 0.005% 10 nA to 10 µA Resistance (2/4-wire) 100 Ω to 100 MΩ 0.01% + 0.001% 100 µΩ to 100 Ω Frequency 3 Hz to 300 kHz 0.01% - Custom Slope Integrating A/D Converter The M3500A features a proprietary slope integrating analogue-to-digital converter that delivers superior measurement stability and noise rejection. This advanced design filters environmental interference while maintaining excellent linearity across all measurement ranges. Performance Advantage: At 6½ digits, the M3500A achieves 55 triggered readings per second via USB interface. For high-speed applications, 4½ digit mode delivers over 2000 readings per second into internal memory. Data Acquisition and Connectivity Beyond basic multimeter functions, the M3500A transforms into a comprehensive data acquisition system with optional 10 or 20-channel scanner cards. Temperature measurements support both RTD and thermocouple sensors with built-in cold junction compensation. M3500A with scanner card installed Mathematical Functions Eight integrated mathematical operations enhance measurement capability: RATIO, %, Min/Max, NULL, Limits, mX+b, dB, and dBm. These functions eliminate the need for external calculations in many test scenarios. PC Integration TMC compliant USB 2.0 interface ensures compatibility with SCPI test programs, including direct emulation of Agilent 34401A commands. Included PC software provides: Real-time graphing and trend analysis Microsoft Excel and Word integration Data logging with 2000-reading internal memory Statistical analysis tools Note: All accessories included: USB cable, test leads with safety probes, power cable, and comprehensive software suite. ## Product type: Meter ## Vendor: Picotest ## Tags: Bench Multimeter, Digital Multimeter, Meter, Multimeter, Picotest, picotest-corp, Resistance ## Price range: 935.0 - 935.0 GBP ## Link: https://thedebugstore.com/products/picotest-m3500a-bench-multimeter ## Options - Title: Default Title ## Collections - [New Products](https://thedebugstore.com/a/llms/collections/new-products-debug-store) - [Admin: No Inventory](https://thedebugstore.com/a/llms/collections/no-inventory) - [Test Meters](https://thedebugstore.com/a/llms/collections/test-meters-catalogue) - [Test & Measurement](https://thedebugstore.com/a/llms/collections/test-measurement-catalogue) - [Bench Multimeters](https://thedebugstore.com/a/llms/collections/bench-multimeters-catalogue) - [Resistance Meters](https://thedebugstore.com/a/llms/collections/resistance-meter-catalogue) - [Picotest](https://thedebugstore.com/a/llms/collections/picotest-catalogue) - [Digital Multimeters](https://thedebugstore.com/a/llms/collections/digital-multimeters) - [Picotest Digital Multimeters](https://thedebugstore.com/a/llms/collections/picotest-digital-multimeters) ## Variants - Default Title, SKU: M3500A, Available: yes, Inventory: 0 ## Metafields - description_tag: Professional 6½ digit multimeter with 0.0035% accuracy, 2000 readings/sec, USB interface. Free UK delivery. - title_tag: Picotest M3500A 6½ Digit Digital Multimeter | High-Precision DMM | Debug Store - manufacturer: Picotest Corp - warranty: 12 months - amazon_enable: TRUE - amazon_title: M3500A 6.5 Digit Bench Multimeter - amazon_product_type: computercomponent - amazon_block: FALSE - amazon_prime_enable: TRUE - amazon_search: PicoTest Digital Multimeter Bench - amazon_uk_price: 654.5 - amazon_uk_currency: GBP - amazon_de_currency: EUR - amazon_de_price: 739.585 - amazon_fr_currency: EUR - amazon_fr_price: 739.585 - amazon_es_currency: EUR - amazon_es_price: 739.585 - amazon_nl_currency: EUR - amazon_nl_price: 739.585 - amazon_it_currency: EUR - amazon_it_price: 739.585 - amazon_se_curency: SEK - amazon_se_price: 7461.3 - amazon_product_id: 5055383600977 - amazon_product_id_type: EAN - amazon_update: Update - amazon_short_description: The M3500A from PicoTest is a 6.5 digit digital multimeter designed with techniques of 7.5 digits. This helps in providing fast, accurate and stable measurements. This multimeter has an ultra-fast update rate of 2000 readings per second and features 19 function measurements. The multimeter is compatible with J, K, T, E, N, S and R type thermocouples, making it a versatile unit for temperature measurement.. - amazon_long_description:

Supports USBTMC

The M3500A multimeter unit supports USBTMC (USB Test & Management Class). All USB devices conform to USBTMC irrespective of the environment or operating system. These devices can communicate with a computer and can work under VISA assistance. Users do not have to spend money on expensive GPIB module as the control procedures for VISA to USBTMC and VISA to GPIB are the same.

Stability, Speed and Accuracy

Using 7.5 digit techniques for 6.5 digit digital multimeter provides a fast, accurate and table measurement from this unit.

19 Full-Featured Functions

The M3500A unit features 11 measurements and 8 mathematical functions that include DCI, DCV, ACV, ACI, 2Wohm, 4Wohm, Frequency, Diode Test, Period, Continuity, Temperature, Ratio, Limits, %, MX+B, dB, dBm, Min/Max, and Null. In addition to these, trigger and memory functions are also included to aid better measurement.

Temperature Measurements

The M3500A unit supports thermal measurements from thermocouples and RTDs. It supports J, K, T, E, N, S and R type thermocouples. ITS-90, IEC751 and Callendar-Van Dusen standards are applied for RTDs temperature conversions.

Multi-Point Scan

The M3500A unit supports 2-pole multi-point scanner cards like OPT01, OPT09, and OPT12. For general purpose measurements like DCV/ACV/Indirect DCI & ACI with Current Shunt/2W/4W/Freq/Period, OPT01(10-ch)/OPT09 (20-ch) scanner cards are used. Whereas, the OPT12 (10-ch) scanner card provides measurements for thermocouples RTDs apart from all the function supported by OPT01/OPT09 cards.

Dual Displays with 3-Colour Annunciators

The dual VFD displays with 5x7 dot-matrix and three-colour annunciators helps users in easily distinguishing between each colour coded symbols.

Noise Immunity

The multi-slope analog to digital converter helps the multimeter to attain fast sampling rates, remove most of the noise and maintain linearity of measurements. Four sets of earth ground on the front panel and usage of copper conductors help in eliminating environmental background noise and reduce thermal EMFs.

Built-in USB Interface

The USB port provided in the M3500A unit makes it easy to use. It delivers a high data-transfer rate of 2000 reading per second and helps the multimeter to reach fast sampling and I/O data rates.

Free Remote-Control Software

PT-TOOL & PT-LINK are remote control software supplied with the M3500A unit. These easy to use software are provided for free and help in better understanding and functioning of the multimeter.

- amazon_main_image: https://www.thedebugstore.com/images/product/Lg-Picotest-M3500A-Front.jpg - amazon_other_image_1: https://www.thedebugstore.com/images/product/Lg-Picotest-M3500A-Back-01.jpg - amazon_other_image_2: https://www.thedebugstore.com/images/product/Lg-Picotest-M3500A-Back-01.jpg - amazon_browse_node: 428655031 - related_products: M3500-OPT01,M3500-OPT02,M3500-OPT03,M3500-OPT04,M3500-OPT05,M3500-OPT06,M3500-OPT07,M3500-OPT08,M3500-OPT09,M3500-OPT10,M3500-OPT11,M3500-OPT12 - mpn: M3500A - backorder_label: If no stock is shown above, order now and we'll ship within 15 working days. - attachments: [[],[]] - condition: new - custom_product: false - mpn: M3500A - google_product_category: Electronics - custom_label_0: Meter - warranty: 3 years - brand: Picotest - badge: - widget:

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- brands: gid://shopify/Metaobject/56256102623 - breadcrumbs: ["gid://shopify/Collection/267180835005"] - manufacturer: PicoTest Corp - customhs_code: 903031 - detailed_description: {"type":"root","children":[{"type":"heading","level":2,"children":[{"type":"text","value":"Supports USBTMC"}]},{"type":"paragraph","children":[{"type":"text","value":"The M3500A multimeter unit supports USBTMC (USB Test & Management Class). All USB devices conform to USBTMC irrespective of the environment or operating system. These devices can communicate with a computer and can work under VISA assistance. Users do not have to spend money on expensive GPIB module as the control procedures for VISA to USBTMC and VISA to GPIB are the same."}]},{"type":"heading","level":2,"children":[{"type":"text","value":"Stability, Speed and Accuracy"}]},{"type":"paragraph","children":[{"type":"text","value":"Using 7.5 digit techniques for 6.5 digit digital multimeter provides a fast, accurate and table measurement from this unit."}]},{"type":"heading","level":2,"children":[{"type":"text","value":"19 Full-Featured Functions"}]},{"type":"paragraph","children":[{"type":"text","value":"The M3500A unit features 11 measurements and 8 mathematical functions that include DCI, DCV, ACV, ACI, 2Wohm, 4Wohm, Frequency, Diode Test, Period, Continuity, Temperature, Ratio, Limits, %, MX+B, dB, dBm, Min/Max, and Null. In addition to these, trigger and memory functions are also included to aid better measurement."}]},{"type":"heading","level":2,"children":[{"type":"text","value":"Temperature Measurements"}]},{"type":"paragraph","children":[{"type":"text","value":"The M3500A unit supports thermal measurements from thermocouples and RTDs. It supports J, K, T, E, N, S and R type thermocouples. ITS-90, IEC751 and Callendar-Van Dusen standards are applied for RTDs temperature conversions."}]},{"type":"heading","level":2,"children":[{"type":"text","value":"Multi-Point Scan"}]},{"type":"paragraph","children":[{"type":"text","value":"The M3500A unit supports 2-pole multi-point scanner cards like OPT01, OPT09, and OPT12. For general purpose measurements like DCV/ACV/Indirect DCI & ACI with Current Shunt/2W/4W/Freq/Period, OPT01(10-ch)/OPT09 (20-ch) scanner cards are used. Whereas, the OPT12 (10-ch) scanner card provides measurements for thermocouples RTDs apart from all the function supported by OPT01/OPT09 cards."}]},{"type":"heading","level":2,"children":[{"type":"text","value":"Dual Displays with 3-Colour Annunciators"}]},{"type":"paragraph","children":[{"type":"text","value":"The dual VFD displays with 5x7 dot-matrix and three-colour annunciators helps users in easily distinguishing between each colour coded symbols."}]},{"type":"heading","level":2,"children":[{"type":"text","value":"Noise Immunity"}]},{"type":"paragraph","children":[{"type":"text","value":"The multi-slope analog to digital converter helps the multimeter to attain fast sampling rates, remove most of the noise and maintain linearity of measurements. Four sets of earth ground on the front panel and usage of copper conductors help in eliminating environmental background noise and reduce thermal EMFs."}]},{"type":"heading","level":2,"children":[{"type":"text","value":"Built-in USB Interface"}]},{"type":"paragraph","children":[{"type":"text","value":"The USB port provided in the M3500A unit makes it easy to use. It delivers a high data-transfer rate of 2000 reading per second and helps the multimeter to reach fast sampling and I/O data rates."}]},{"type":"heading","level":2,"children":[{"type":"text","value":"Free Remote-Control Software"}]},{"type":"paragraph","children":[{"type":"text","value":"PT-TOOL & PT-LINK are remote control software supplied with the M3500A unit. These easy to use software are provided for free and help in better understanding and functioning of the multimeter."}]}]} - key_feature_1: High-precision 6½ digit digital multimeter with 0.0035% DC voltage accuracy and advanced data acquisition capabilities. - summary:
The Picotest M3500A represents exceptional value in precision measurement instrumentation, delivering 6½ digit accuracy typically found in instruments costing significantly more. With 0.0035% DC voltage accuracy on the 10V range and comprehensive measurement functions, this multimeter serves research laboratories, calibration facilities, and production environments requiring traceable measurements. The instrument's versatility extends beyond traditional multimeter applications through optional scanner cards supporting up to 20 channels for automated testing. Temperature measurement capabilities include RTD and thermocouple support, making the M3500A suitable for thermal characterisation and environmental monitoring applications.
Complete system includes all necessary accessories for immediate operation, backed by Picotest's comprehensive three-year warranty and 30-day return policy.
Professional engineers appreciate the M3500A's rugged construction and intuitive interface, featuring a high-contrast 5×7 dot matrix VFD display with three-colour annunciators. The instrument's compact footprint and carrying handle facilitate both benchtop and portable applications. For automated test environments, the TMC compliant USB interface integrates seamlessly with existing SCPI programs, whilst included PC software enables sophisticated data analysis and documentation capabilities.
- key_feature_2: 6½ digit resolution with 0.0035% DC accuracy - key_feature_2_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Industry-leading precision for critical measurements at exceptional value pricing"}]}]} - key_feature_3: Custom slope integrating A/D converter technology - key_feature_3_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Advanced converter design provides superior stability and noise rejection"}]}]} - key_feature_4: 2000 readings/second data acquisition capability - key_feature_4_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"High-speed sampling ideal for production testing and automated systems"}]}]} - key_feature_5: Optional 10/20 channel scanner cards available - key_feature_5_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Transform into multi-channel data acquisition system for automated testing"}]}]} - key_feature_6: TMC compliant USB interface with SCPI compatibility - key_feature_6_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Seamless integration with existing test systems and legacy programs"}]}]} - key_feature_7: Built-in temperature measurement functions - key_feature_7_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"RTD and thermocouple support with cold junction compensation included"}]}]} - key_feature_8_tooltip: {"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Direct data import to Excel and Word for analysis and reporting"}]}]} - key_feature_8: Microsoft Office integration software included - why_people_choose_3_title: Complete Measurement Solution - why_people_choose_2_title: System Integration Ready - why_people_choose_1_title: Laboratory-Grade Precision - why_people_choose_1: Delivers 6½ digit accuracy at 5½ digit pricing for budget-conscious precision applications - why_people_choose_3: Includes all accessories, software, and three-year warranty for immediate productivity - why_people_choose_2: TMC compliant USB interface with SCPI compatibility eliminates software development overhead - 1573116: What accuracy can I expect from the M3500A compared to industry standards?***SIMP***The M3500A delivers 0.0035% DC voltage accuracy on the 10V range, matching or exceeding instruments costing twice as much. This performance satisfies ISO calibration requirements and most laboratory measurement standards. - 1573117: How does the M3500A compare to the Agilent 34401A for existing test systems?***SIMP***The M3500A includes complete 34401A SCPI command emulation, enabling direct replacement in existing automated test systems. Performance improvements include faster sampling rates and enhanced stability through the custom slope integrating A/D converter. - 1573118: Can the M3500A function as a data acquisition system for multi-channel measurements?***SIMP***Yes, optional 10 or 20-channel scanner cards transform the M3500A into a comprehensive data acquisition unit. The system supports both voltage measurements and temperature sensing via RTD and thermocouple inputs with built-in cold junction compensation. - 1573119: Can the M3500A function as a data acquisition system for multi-channel measurements?***SIMP***The M3500A provides 11 measurement functions including frequency, period, continuity, diode test, and temperature measurement. Eight mathematical functions (ratio, percentage, statistics, limits, mX+b, dB, dBm) eliminate external calculation requirements. - 1573120: Is the M3500A suitable for high-speed production testing applications?***SIMP***Absolutely. The instrument achieves over 2000 readings per second in 4½ digit mode with 2000-reading internal memory buffering. USB interface provides rapid data transfer for automated production environments. - 1573121: What software is included and how does it integrate with existing workflows?***SIMP***Complete software suite includes PT-Tool for standalone operation, Microsoft Excel add-in for direct data import, and Word integration for report generation. SCPI compatibility ensures integration with LabVIEW, Python, and other test development environments. - 1573122: How does the M3500A handle temperature measurements compared to dedicated instruments?***SIMP***Built-in temperature functions support seven thermocouple types (E, J, K, N, R, S, T) and RTD sensors. Cold junction compensation and linearisation are handled automatically, providing accuracy comparable to dedicated temperature measurement instruments. - 1573123: What accessories are required for full operation and are they included?***SIMP***All essential accessories are included: USB cable, safety test leads with multiple probe types, power cable, and comprehensive software package. Optional accessories include scanner cards, specialized probes, and communication interfaces. - 1573124: Can I use the M3500A for both benchtop and portable applications?***SIMP***Yes, the rugged construction includes protective rubber bumpers and a carrying handle for portable use. Selectable front/rear inputs accommodate both benchtop operation and rack mounting configurations.