Cold Junction Thermocouple Box
The SoMat Cold Junction Thermocouple Box (ECJTB) is an accessory for the eDAQ and eDAQlite NTB layers.
The Somat eDAQlite Non-Isolated Thermocouple Layer (ELNTB) measures temperatures on 16 channels of non-isolated thermocouple signal conditioning. Thermocouples come in several styles of dissimilar metals or calibrations, and the ELNTB is compatible with the four most common calibration types (J, K, T and E). Each channel is individually software-selectable between these calibrations.
Since all 16 channels share a common cold junction, the ELNTB has excellent channel-to-channel accuracy. This is particularly valuable when measuring things such as thermal gradients.
In addition to the ELNTB layer, a Somat Cold Junction Thermocouple Box (ECJTB) is required for the thermocouple termination.
Product Specifications
Physical
Size: 6.9" W x 5.6" L x 0.7" H (18cm W x 14cm L x 2cm H)
Weight: .84 lbs (.39 kg)
Temperature: -20° to 65° C
Connector: 37 Pin High Density D-Sub
Inputs
Accuracy:
Cold Junction Compensation: +/- 0.5° C
Thermocouple (Channel to Channel on the CJC): +/- 0.1° C (not including thermocouple inaccuracies)Resolution: 16-bit ADC
Sample Rates: Independently set, 0.1Hz-5Hz
Filtering: Guard Filters are used before the ADC on each channel, followed by digital filtering.
Thermocouple Types:
Type Range K Type -200° C to 1372° C T Type -200° C to 400° C E Type -200° C to 1000° C J Type -200° C to 1200° C Thermocouple Termination: Thermocouples are terminated in a 16-channelCold JunctionBox.
Includes
(1) CBL-0007-00 Cable
Requires
(1) 16-channel Somat Cold-Junction Thermocouple Box
