Multi-compressor or multi-fan controller - 71x97x61mm DIN RailMain features
Four ON/OFF outputs for the control of single or multi-stage compressors or fans
Proportional output for speed control (inverters)
Output with change-over contacts for alarm control
Input for pressure transmitter (0/4 20mA) or for a temperature probe (NTC10K).
Two digital inputs on voltage free contact for programmable function, up to three digital optocoupled voltage inputs for a complete system diagnostics
Selection of the control algorithm: rotation of outputs, sequential activation, optimisation of the available power
Pressure Temperature conversion according to gas used
Storage of the latest nine alarms
Automatic maintenance management
Connection to supervisory PC
For cryogenerators in supermarkets, cold stores and all cryogenic systems with variable demand.