PB6TCS - 6 Thermocouple Module Fully Isolated

The PB6TCS module is a 6 isolated thermocouple input module. The module uses differential inputs to reduce effects of electrical noise and mains pickup. The thermocouple inputs are isolated from the logic and from each other.

The thermocouple voltage is read by the module circuitry, linearised and converted to degrees Centigrade. No ranging is required as the module covers the full range as indicated in the TC table. The value that is read from the Modbus register is the actual temperature in degrees centigrade to 0.1°C resolution. ie: a value of 3451 corresponds to a temperature of 345.1°C.

The thermocouple type is setup by writing a value to the TC Type register. The value is obtained from the table below. For example to select type K thermocouples, the value “2” must be written to the TC Type register. Each thermocouple channel can be individually enabled/disabled and configured with the thermocouple type.

The module has built in Cold Junction Compensation. Use must be made of the correct thermocouple extension wire to avoid reading errors.

The thermocouple module can also be configured for a 0 – 50mV or +/- 100mV input range.

PB6TCS - 6 Thermocouple Module Fully Isolated

Input

6 x Isolated Thermocouple Inputs

TC Types

J,K,E,T,N,B,S,R,mV,C,D and G

Resolution

0.1 Deg.C

Sample rate

(No. of inputs enabled + 1) X 180ms

Drift

100 ppm/Deg.C typ.

Isolation (Field & Logic)

1500VAC RMS

Isolation (Inter Channel)

350VAC (Pk to Pk)

Order Codes

  • PB6TCS - Modbus RS485 6 Thermocouple Input Module Isolated

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PB6TCS - 6 Thermocouple Module Fully Isolated

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Procon Electronics