M632 Precision Resistance Decade

Product catalog summary

Overview: The M632 Precision Resistance Decade is a high-accuracy resistance decade box designed for precise resistance measurements and RTD temperature sensor simulation. It offers a resistance range from 1.00000 Ω to 1.20000 MΩ with an accuracy of +/- 30 ppm and a temperature coefficient of less than 1 ppm/°C. The device supports an operating voltage of up to 200 V and can simulate RTD temperature sensors with a Pt simulation accuracy of +/- 0.01 °C.

Specifications:

Resistance Range: 1 Ω to 1.2 MΩ
Accuracy: 0.003% with best resolution at 10 μΩ
Temperature Coefficient: < 1 ppm/°C
Operating Voltage: 200 V
Interfaces: RS232, USB, LAN, GPIB

Resistance Accuracy:

1.000 00 Ω - 2.000 00 Ω: 0.002% + 2 mΩ
2.000 1 Ω - 20.000 0 Ω: 0.003%
200.01 kΩ - 1200.00 kΩ: 0.005%

Pt Simulation Accuracy:

-200.000 to 0.000 °C: 0.05 °C for Pt10 to Pt99, 0.01 °C for Pt100 to Pt20000
0.001 to 200.000 °C: 0.06 °C for Pt10 to Pt99, 0.015 °C for Pt100 to Pt20000

Ni Simulation Accuracy:

-60.000 to 300.000 °C: 0.05 °C for Ni10 to Ni99, 0.01 °C for Ni100 to Ni20000

General Specifications:

Max Voltage: 200 V pk
Max Current: 500 mA
Max Load: 0.25 W
Reaction Time: 6 ms
Switching Method: Fast / Smooth / Via short / Via open
Terminals: Gold plated 4mm
Power Supply: 115/230 Vac, 50/60 Hz
Dimensions: 390 mm (W) x 128 mm (H) x 310 mm (D)
Weight: 5.2 kg

Content of Delivery: The package includes the M632 Precision Resistance Decade, RS232 cable, application software, and a user’s manual.

Ordering Information: Options include different bus interfaces (RS232, USB, LAN, GPIB) and housing configurations (table version or 19” module).

Catalog excerpts

Precision Resistance Decade • Resistance range 1.00000 Q - 1.20000 MQ • Resistance accuracy +/- 30 ppm • Temperature coefficient < 1ppm/°C • Operating voltage 200 V • Simulation of RTD temperature sensors • Pt simulation accuracy +/- 0.01 °C • User defined curves (conversion tables) • RS232 (optionally USB, IEEE488, LAN) Model M632 is a precise resistance decade box with range from 1 Q to 1.2 MQ. Basic accuracy is 0.003 %. Best resolution at the lowest range is 10pQ. Decade contains stable foil resistors with low temperature coefficient switched by low thermal voltage relays. Built-in software contains function of RTD temperature sensor simulation with parameters according to IEC (DIN) or US standards, temperature setting in degree of Celsius or Fahrenheit. Instrument can be controlled via RS232, USB, LAN or gPiB interface. M632 is sophisticated instrument with its own recalibration procedure. The procedure enables to correct any deviation in resistance without any mechanical adjusting. Decade box is designed for checking parameters of resistance meters, regulators and process meters that use external resistance sensors for non-electric quantity measuring. M632 Resistance accuracy M632 Pt simulation accuracy M632 Ni simulation accuracy Temperature MEATEST, spol.s r.o., Zelezna 3, CZ - 619 00 Brno, Czech Republic | tel. +420 543 250 886 | www.meatest.com M6

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Maximal voltage: Maximal current: Maximal load: TC of used resistors: Reaction time: Switching method: Terminals: Remote control: Power supply: Reference temperatures: Working temperatures: Storage temperatures: Dimensions: Weight: Languages: 200 V pk 500mA 0.25 W < 1 ppm/ °C 6 ms Fast / Smooth / Via short / Via open gold plated terminals 4mm RS232 interface (optionally USB, LAN, IEEE488) 115/230 Vac, 50/60 Hz +20 °C ... +26 °C +5 °C ... +40 °C -10 °C . +50 °C W 390 mm, H 128 mm, D 310 mm 5.2 kg English, German, French, Spanish, Russian, Czech Content of delivery M632 Precision Resistance Decade...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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