Wago 750-487/003-000 WAGO I/O-SYSTEM 750 Intrinsically safe Analog Input Module
2-Channel Analog-Input Intrinsically safe, Signal: Thermocouple/Low voltages Thermocouple type: K configurable: J/B/E/L/N/R/S/T/U, Voltage sensors: +-30 mV/+-60 mV/+-120 mV, Temperature range: depends on type -100..+1.800°C, Sensor connection: 2x (2-conductor), Internal resistance: 1000 kOhm, Resolution: 0,1°C or 0,01 mV for voltage measurement, Conversion time: 320 ms, Conversion time : <=320 ms (both channels), Temperature coefficient: <+-0,2 K / K of largest output area (Typ K), Intrinsically safety Ex i: yes, Cold junction compensation: intern at each pair of terminal blocks
The analog input module directly connects two thermocouples operating in hazardous environments of Zones 0 and 1.
The WAGO-I/O-SYSTEM 750 must be installed either in Zone 2 or in a non-hazardous area.
Internal electrical isolation allows operation of grounded sensors. The module automatically linearizes the entire temperature range.
Cold junction compensation mitigates the clamping unit offset voltage over the 0-55°C operating range.
The 24 V supply is derived from the module's power jumper contacts. Field and system levels are electrically isolated.
The module's operating mode is parameterized via WAGO-I/O-CHECK 3 software.
Note: The analog input module must only be operated via Ex i 24VDC power supply!
General information (e.g., installation regulations) on explosion protection is available in the WAGO-I/O-SYSTEM 750 manuals!
< ± 6 K (type K)
< ± 2 K Voltage input
< ± 4 K Cold junction compensation
Uo = 14.4 V; Io = 29.1 mA; Po = 52.4 mW; Characteristic: Linear
EN 60079-0, EN 60079-11, EN 60079-15, EN 60079-26, EN 60079-31