DGH Corporation, D1331, D1300 Thermocouple Input Module, T/RS-232
Features:
- Automatic cold junction compensation and linearization.
- Three open-collector digital outputs.
- Two digital inputs.
- User selectable degrees C or F scaling
- Input burnout protection to 250 VAC
- Open thermocouple indication.
- One digital input/60 Hz events counter
- D1300M series does not contain Events Counter.
- ASCII format command/response protocol
- 500V rms analog input isolation
- 15 bit measurement resolution
- Continuous self-calibration; no adjustments of any kind
- Programmable digital filter
- Digital limit setting and alarm capability
- Digital inputs and outputs connect to solid state relays
- Events counter to 10 million
- Requires +10V to +30Vdc unregulated supply
- Screw terminal plug connectors supplied
The D1300 series modules measure thermocouple temperature sensors. Thermocouples consist of two wires made from dissimilar metals. The wires normally are joined or bonded together at one end to create a junction. This junction of different metals generates a predictable voltage output with changes in temperature.
The D1300 thermocouple input modules use an isolated 15-bit analog to digital converter to measure the thermocouple output voltage, perform cold-junction compensation and linearize the digital data into scaled temperature values. The temperature values can be scaled in either degrees Celsius or Fahrenheit.
The D1300 thermocouple input modules include two discrete digital inputs and three open-collector digital outputs. Two of the digital outputs can also be programmed as HI/LO alarm outputs based on the thermocouple temperature.
The digital outputs can be used to control solid-state relays or annunciators and can be pulled up to +30Vdc and sink up to 30mA without damage. The discrete digital inputs contain internal pull up resistors and can accept +/-30Vdc signals without damage. The discrete switching levels are <+1Vdc = logic "0", >+3.5Vdc equals a Logic "1".
The D1300 current input modules can be mounted on a DIN-Rail using the MK-1 mounting kit.
For more information, please see 
Data Sheet
