MC631 Precision RTD Simulator

Real resistors switched by relays
Resistance range 16 Ω - 400 kΩ
Simulation accuracy 0.01°C
Resistance accuracy 0.003%
Maximal voltage 200 Vpk
Resolution from 0.001°C
Range of Pt sensor temperature simulation -200°C - +850°C
Connection 2, 3, 4-wire
Remote control RS232, optionally USB, IEEE488, Ethernet

Model MC631 is a high accuracy RTD simulator with range from 16Ω to 400kΩ. Basic accuracy is 0.01°C, resolution is 0.001°C. Decade consists of highly stable foil resistors switched with combination of relays. Apart from RTD temperature sensor simulation (temperature setting in Celsius or Fahrenheit) the MC631 can also be used as a standard resistance decade. Instrument can be controlled via RS232, USB, LAN or GPIB interfaces. Decade uses internal power supply with very low noise level. Simulator can also be used for AC application. Please see datasheet for information on frequency response.

RTD simulators are designed for calibration laboratories for temperature testing of RTD evaluation units like temperature regulators, transducers, etc. With the resistance simulation function, MC631 can also be used as an ohmmeter calibrator or as a device for quality testing in the industry as well. This simulator can be ordered as 19” module for easy assembling into a 19” rack. Module height is 3HE.

MC631 Datasheet pdf MC631 User Manual pdf

General Specifications

Maximal Voltage:	220V pk
Maximal Current:	500mA
Total power dissipation:	0.25W
TC of used resistors:	<1ppm/°C (16Ω....2kΩ)
	<5ppm/°C (2kΩ....10kΩ)
	<50ppm/°C (10kΩ....400kΩ)
Reaction time:	6ms
Switching method:	Fast/Smooth/Via short/Via open
Terminals:	Gold plated terminals 4mm
Remote control:	RS232 interface (optional USB, LAN, IEEE488)
Power supply:	115/230Vac, 50/60 HZ
Reference temperatures:	+20°C...+26°C
Working temperatures:	+5°C...+40°C
Storage temperatures:	-10°C...+50°C
Dimensions W x H x D:	15.3in x 5in x 12.2in (390mm x 128mm x 310mm)
Weight:	5.2kg

Resistance Accuracy

Range/Resolution	Accuracy
16Ω - 20Ω	0.002% + 2mΩ
20.001Ω - 200Ω	0.002% + 2mΩ
200.01Ω - 1,000Ω	0.003%
1,000.1Ω - 3,000Ω	0.005%
3,001Ω - 10,000Ω	0.015%
10.01kΩ - 30kΩ	0.03%
30.1kΩ - 100kΩ	0.1%
101kΩ - 400kΩ	0.4%

Frequency Response

R	AC/DC difference
R	100Hz	1kHz	10kHz
16Ω	0.01%	0.01%	0.04%
100Ω	0.1%	0.03%	0.30%
1kΩ	0.03%	0.30%	3.00%
10kΩ	0.30%	3.00%
100kΩ	3.00%

Pt simulation accuracy

Temperature	Accuracy Pt100 - Pt500	Accuracy Pt501 - Pt6000
-200 - 0.0°C	0.01°C	0.01°C
0.001 - 200°C	0.015°C	0.02°C
200.001 - 500°C	0.03°C	0.04°C
500.001 - 850°C	0.04°C	0.1°C

Ni simulation accuracy

Temperature	Accuracy Ni100 - Ni500	Accuracy Ni501 - Ni6000
-60 - 0.0°C	0.01°C	0.01°C
0.001 - 300°C	0.01°C	0.02°C

Accessories (included)

Application Software	1pc
RS232 Cable	1pc

Options (extra ordered)

IEEE488/USB/LAN/GPIB

Table Version

19" rack

MC631 Datasheet pdf MC631 User Manual pdf