BEAMEX MC4 - Resistance Measurement; Resistance Simulation

Appendix 1, Technical Data
MC4 User Guide 189
Resistance Measurement
Full Range: 0 ... 4000 ohm
Sub Range Resolution 1 Year Uncertainty
(1
0 ... 250 ohm 1 mohm 4 wire connection:
0.02 % RDG + 3.5 mohm
3 wire connection:
0.02 % RDG + 13.5 mohm
250 ... 2650 ohm 10 mohm
(same as above)
2650 ... 4000 ohm 100 mohm
(same as above)
Feature Specification
Temperature
coefficient
Add 0.0015 % RDG /°C to spec. outside 18  28°C
Add 0.0008 % RDG /°F to spec. outside 64.4  82.4°F
Measurement
current
Pulsed, bi-directional 1 mA (0 ... 500 ohm),
0.2 mA (>500 ohm).
Supported units ohm, kohm
Display update rate 3 / second
Resistance Simulation
Full Range: 0 ... 4000 ohm
Sub Range Resolution 1 Year Uncertainty
(1 (2
0 ... 400 ohm 10 mohm 0.04 % RDG or 30 mohm
(Whichever is greater)
400 ... 4000 ohm 100 mohm
(same as above)
Feature Specification
Temperature
coefficient
Add 0.0015 % RDG /°C to spec. outside 18  28°C
Add 0.0008 % RDG /°F to spec. outside 64.4  82.4°F
Max. Resistance
excitation current
5 mA (0 ... 650 ohm)
Iexc*Rsim < 3.25 V (650 ... 4000 ohm)
Settling time
(pulsed currents)
1 ms
Supported units ohm, kohm
1)
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2)
2)
Specification valid with an excitation current
>0.2 mA (0...400 ohm),
>0.1 mA (400...4000 ohm)