M630 / M630A Programmable Decade Box0 pages

M630 / M630A
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Programmable Decade Box
Calibration of temperature controllers
Resistance range 1.00000 Ω – 1.20000 MΩ
Ω
Resistance accuracy +/- 30 ppm
Temperature coefficient < 1ppm/°C
°
Operating voltage 200 V
Simulation of RTD temperature sensors
Simulation accuracy +/- 0.01 °C
User defined curves (conversion tables)
RS232 (optionally USB, IEEE488)
Versions
M630 (16 Ω - 400 kΩ)
Ω
- suitable for temperature
simulation
M630A (1 Ω - 1.2 MΩ)
Ω
- general resistance decade for
universal use
Model M630 is a precise resistance decade box with range from 1 Ω to 1.2 MΩ. Basic accuracy is 0.003 %. Best
resolution on the lowest range is 10 µΩ. Decade contains stable foil resistors with low temperature coefficient
switched by low thermal voltage relays. Build-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.
M630 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.
M630 Resistance accuracy
M630A Resistance accuracy
Range / Resolution
Accuracy
16.000 0 Ω - 20.000 0 Ω
20.001 Ω - 200.000 Ω
0.002 % + 2 mΩ
Ω
Range / Resolution
Accuracy
1.000 00 Ω - 2.000 00 Ω
2.000 1 Ω - 20.000 0 Ω
200.01 Ω - 1000.00 Ω
0.003 %
20.001 Ω - 200.000 Ω
1000.1 Ω - 3000.0 Ω
0.005 %
200.01 Ω - 2000.00 Ω
3001 Ω - 10000 Ω
0.015 %
2.000 1 kΩ - 20.000 0 kΩ
Ω
Ω
10.01 kΩ - 30.00 kΩ
Ω
Ω
0.03 %
20.001 kΩ - 200.000 kΩ
Ω
Ω
30.1 kΩ - 100.0 kΩ
Ω
Ω
0.1 %
200.01 kΩ - 1200.00 kΩ
Ω
Ω
101 kΩ - 400 kΩ
Ω
Ω
0.002 % + 2 mΩ
Ω
0.4 %
M630 Pt simulation accuracy
Temperature
0.003 %
0.005 %
M630A Pt simulation accuracy
Accuracy
Accuracy
Pt100 … Pt500
Pt1000
-200.000…0.000 °C
0.01 °C
0.01 °C
Temperature
Accuracy
Pt100 … Pt10000
-200.000…0.000 °C
0.01 °C
0.001…200.000 °C
0.015 °C
0.015 °C
0.001…200.000 °C
0.015 °C
200.001…500.000 °C
0.03 °C
0.05 °C
200.001…500.000 °C
0.03 °C
500.001…850.000 °C
0.04 °C
0.08 °C
500.001…850.000 °C
0.04 °C
MEATEST, spol.s r.o., Zelezna 3, CZ – 619 00 Brno, Czech Republic | tel. +420 543 250 886 | www.meatest.com
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