13
2566 Thermocouple Scanner Module
NOTE:
An Application Note for use of Tungsten-Rhenium and other
thermocouples is available at www.hartscientific.com.
This section explains the features and operation of the optional 2566 Thermo-
couple Scanner Module.
13.1
Description
The 2566 Thermocouple Scanner Module is an add-on module that allows the
1560 to measure temperature with up to 12 thermocouples simultaneously. It
accepts nearly every type of thermocouple sensor. It incorporates built-in
cold-junction compensation (CJC) for convenience. Alternately, external CJC
can be used for greater accuracy. Up to 12 sensors can be connected to the 2566
simultaneously and measured alternately.
13.2
Specifications
Voltage range
0 to 100 mV
Voltage accuracy, one-year
1
0 to 50 mV
50 to 100 mV
0.004 mV
80 ppm of reading
Voltage accuracy, short-term
1,2
0 to 50 mV
50 to 100 mV
0.003 mV
60 ppm of reading
Internal CJC accuracy
1
0.2°C (0.36°F)
Temparature accuracy, external CJC
1,3
Type E @ 800°C
Type J @ 1000°C
Type K @ 1200°C
Type N @ 1200°C
Type S @ 1400°C
Type T @ 300°C
±0.05°C (0.09°F)
±0.08°C (0.14°F)
±0.11°C (0.20°F)
±0.11°C (0.20°F)
±0.33°C (0.60°F)
±0.07°C (0.13°F)
Temparature accuracy, internal CJC
1,3
Type E @ 800°C
Type J @ 1000°C
Type K @ 1000°C
Type N @ 1000°C
Type S @ 1400°C
Type T @ 300°C
±0.21°C (0.38°F)
±0.25°C (0.46°F)
±0.33°C (0.60°F)
±0.26°C (0.47°F)
±0.43°C (0.78°F)
±0.21°C (0.38°F)
Voltage temperature coefficient
1
10 ppm/°C (5.6 ppm/°F)
Internal CJC temperature coefficient
1
±0.03°C/°C (±0.03°F/°F)
Sample time
2 seconds
Number of channels
12
155
13 2566 Thermocouple Scanner Module
Description
