PR electronics 3112 Pt100 converter - isolated. The 3112 temperature converter measures a standard 2-, 3- or 4-wire Pt100 temperature sensor, and provides an isolated analog voltage or current output. High 3 port isolation provides surge suppression and protects the control system from transients and noise. The 3112 can be mounted in the safe area or in Zone 2 / Division 2 areas. Approved for marine applications.
Technical characteristics
Flexibly powered by 24 VDC (±30%) via power rail or connectors.
< 30 ms fast response time with simultaneous sensor error detection when selected.
Selectable 300 ms response time when signal dampening is needed.
Excellent conversion accuracy in all available ranges, better than 0.05% of span.
Meeting the NAMUR NE21 recommendations, the 3112 provides top measurement performance in harsh EMC environments.
The device meets the NAMUR NE43 standard defining out of range and sensor error output values.
A visible green LED indicates operational status of the unit and the input sensor.
All terminals are protected against overvoltage and polarity error.
High galvanic isolation of 2.5 kVAC.
Excellent signal/noise ratio of > 60 dB.
Mounting / installation / programming
Selectable DIP-settings for easy configuration of more than 1000 factory calibrated measurement ranges.
The narrow 6 mm housing allows up to 165 units to be mounted per meter of DIN rail, without any air gap between units.
Wide ambient temperature range of -25...+70°C.
