Section
5-1
5Specificationsand Reference DataFUNCTIONAL
SPECIFICATIONS
Inputs
Models 444RL, LL, and LM
100 V R0 platinum RTD per IEC 751.
Model 444T
Thermocouple types E,J,K,T,R, and S per NIST (grounded or
ungrounded).
Model 444MV
Millivolt input (grounded or ungrounded) source impedance less than
100 V.
R-numbers, specials
Special inputs other than standards, consult factory.
Spans
RTD
Platinum 45 to 135 °F (25 to75 °C).
125 to 380 °F (70 to 210 °C).
360 to 1080 °F (200 to 600 °C).
Copper 180 to 540 °F (100 to 300 °C).
Nickel 45 to 360 °F (25 to 200 °C).
Thermocouples
Type J, K, E, T 180 to 540 °F (100 to 300 °C).
Type J 504 to 1458 °F (280 to 810 °C).
Type K, E 504 to 1510 °F (280 to 840 °C).
Type K 845 to 2540 °F (470 to 1410 °C).
Type R, S 1467 to 3000 °F (815 to 1670 °C).
Millivolt
5 to 15 mV.
15 to 45 mV.
Outputs
Linear with temperature for RTD inputs.
Linear with millivolt input signal for thermocouple or millivolt inputs;
thermocouple and millivolt models input/output isolated to 500 V dc.
Models 444RL, T, MV
4–20 mA.
Model 444LL
0.8–3.2 V dc.
Model 444LM
1.0–5.0 V dc.