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1.7 Specification
1.7.1
Input1
Resolution: 18 bits
Sampling Rate: 5 times / second
Maximum Rating: -2 VDC minimum, 12 VDC maximum (1 minute for mA input)
Temperature Effect: 1.5uV/°C for all inputs except mA input, ±3.0uV/°C for mA input
Sensor Lead Resistance Effect:
T/C: 0.2uV/ohm;
3-wire RTD: 2.6°C/ohm of resistance difference of two leads;
2-wire RTD: 2.6° C/ohm of resistance sum of two leads
Burn-out Current: 200nA
Common Mode Rejection Ratio (CMRR): 120dB
Normal Mode Rejection Ratio (NMRR): 55dB
Sensor Break Detection:
Sensor Open for TC, RTD and mV inputs
Sensor short for RTD input
Below 1 mA for 4-20 mA input,
Below 0.25V for 1 - 5 V input,
Unavailable for other inputs.
Sensor Break Responding Time:
Within 4 seconds for TC, RTD and mV inputs,
0.1 second for 4-20 mA and 1 - 5 V inputs.
Characteristics:
Type Range Accuracy @ 25°C Input Impedance
J -120°C to 1000°C ( -184°F to 1832°F )
±2°C 2.2 MΩ
K -200C to 1370 C ( -328°F to 2498°F ) ±2°C 2.2 MΩ
T -250°C to 400°C ( -418°F to 752°F ) ±2°C 2.2 MΩ
E -100°C to 900°C( -148°F to 1652°F ) ±2°C 2.2 MΩ
B 0°C to 1800°C( 32°F to 3272°F ) ±2°C( 200°C to 1800° C )
2.2 MΩ
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