15
SPECIFICATION (con’t)
mV OUTPUT:
Non-linearized, cold-junction compensated,
amplified thermocouple output (Not isolated
from selected TC input.)
On ºC Scale:
1mV/ºC on 200º range
0.1mV/ºC on 1370º range
0ºC = OmV output
On º F Scale:
5/9 mV/ºF on 200º range
5/90 mV/ºF on 2000º range
0ºF = OmV output
mV OUTPUT ACCURACY
(18º - 28ºC)
±(3% + 1mV) on 200º ranges;
±(3% + 0.1mV) on High ranges
Includes TC non-linearity, excludes TC
errors. Output resistance: 10k ohms
mV OUTPUT TEMPERATURE
COEFFICIENT (0º - 18ºC & 28º -
50ºC):
Less than (0.1 x accuracy specification)/ºC
mV OUTPUT PROTECTION:
35 V dc (42 V peak) max; +mV to -mV
and selected TC input to +mV or -mV.
THERMOCOUPLE
LINEARIZATION:
Multi-scope A/D with 11 piecewise linear
segments between -40º and 1370ºC
FOR MODEL 872A
TEMPERATURE SENSOR:
Type J (Fe-CuNi) thermocouple
RANGES:
200ºF, 1400ºF, 200ºC, 760ºC
TEMPERATURE SPAN:
-40.0º TO 199.9ºF, -40º to 1400ºF
-40.0º TO 199.9ºC, -40º to 760ºC
RESOLUTION:
0.1ºF, 1ºF, 0.1ºC, 1ºC
INPUT CURRENT:
25 nA typical; 50 nA max
CONVERSION PERIOD:
400 ms (2.5 readings/sec.)
OVERRANGE AND OPEN
THERMOCOUPLE INDICATION:
3 least significant digits blanked
Содержание 871A
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