General Specification

The analog input terminals allow thermocouples to be connected directly. The Bus Terminal’s circuitry can operate thermocouple sensors using the 2-wire technique. Linearisation over the full temperature range is realized with the aid of a microprocessor. The temperature range can be selected freely. The error LEDs indicate a broken wire. Compensation for the cold junction is made through an internal temperature measurement at the terminals. Can also be used for mV measurement.

Electrical and Mechanical Specification


Electrical and Mechanical Specification
AKT-AN-200-000
Number of inputs
2
Power supply
via the Standard Bus
types J, K, L, B, E, N, R, S, T, U (default setting type K), mV measurement
Connection Method
2-wire
Temperature range
in the range defined in each case for the sensor (default setting: type K; -100…+1,370 °C)
Resolution
0.1 °C per digit
Conversion time
~ 250 ms
Wiring fail indication
yes
Measuring error
< ±0.5 % (relative to full scale value)
Electrical isolation
500 Vrms (Standard Bus/signal voltage)
Current consump. from Standard Bus
typ. 65 mA
Bit width in the process image
input: 2 x 16 bit data (2 x 8 bit control/status optional)
Configuration
no address setting, confi guration via Bus Coupler or controller
Weight
70 g
Operating/storage temperature
0 C ... +55 °C /-25 °C... +85 °C
Relative humidity
95 %, no condensation
Vibration / shock resistance
conforms to EN 60068-2-6 / EN 60068-2-27/ 29
EMC immunity/emission
conforms to EN 61000-6-2 / EN 61000-6-4
Protect. class / installation pos.
IP 20 / variable

  • 24-volt power is not passed through AKT-AN-200-000 and AKT-AN-400-000 thermocouple modules. To get 24VDC power to devices that need it (such as an AKT_AT-410-000 Output module) there are two possible solutions. :

    • Place the module requiring 24VDC before the thermocouple module.
    • Add a power feed module (AKT-PS-024-000 or AKT-PSF-024-000) after the thermocouple module.