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.ย The discrete switching levels are <+1Vdc = logic โ0โ, >+3.5Vdc equals a Logic โ1โ.
The scaled temperature values are transmitted to a host computer via an RS-232 or RS-485 serial port.
Use the links below to download a D1000 Series Datasheet or Userโs Manual.
โข Types: J, K, T, E, R, S, B, C
โข Accuracy (errors from all sources) from 0 to +40C ambient: +/-1deg C max (J,K,T,E types). +/-2.5 deg C max for (R,S,B,C types).
โข Resolution: 1 degree (C or F).
โข Common mode rejection: 100db at 50/60 Hz.
โข User selectable degrees C or F scaling.
โข Lead resistance effect: <20uV per 350 ohms.
โข Input burnout protection to 250 VAC.
โข Input impedance: 100 megohm min.
โข Automatic cold junction compensation and linearization.
โข Three open-collector digital outputs.
โข Two digital inputs.
โข Open thermocouple indication.
โข One digital input/60 Hz events counter
Note: D1300M series does not contain Events Counter.
Protocol
DGH ASCII
Additional Features
Digital Inputs, Digital Outputs, Events Counter
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