Sensors and Accessories are needed for operation of above controllers.
Pressure Transmitters convert pressure in a 4 to 20mA current output signal with high linearity, optimized for the needs of the refrigeration industry. The PT5 Series feature highly linear transfer characteristic and are optimized for the temperature range mainly used in refrigeration and air conditioning systems.
PT5-07M with a range from -0,8 to 7 bar is for suction pressure standard refrigerants.
PT5-18M with a range from 0 to 18 bar is for suction pressure R-410A.
PT5-30M with a range from 0 to 30 bar is for condensing pressure standard refrigerants.
PT5-50M with a range from 0 to 50 bar is for condensing pressure R-410A.
All are equipped with a pressure connection of 7/16”-20UNF with Schrader valve opener and a M12 electrical connection.
PT5-xxT has the same features, but with Ø6 mm x 50mm solder tube.
PT4-xxU is a series of pressure transmitters with 0 to 10V analogue output.
Cable assemblies PT4-xxM are for easy electrical connection available with 1,5m / 3m / 6m cable length.
The temperature sensors typically are available with different cable lengths and differentiated by their main application:
ECN-N optimized for evaporator outlet temperature measurement
ECN-S Air temperature sensors (EC2, EC3)
ECN-F60 Defrost Sensors (EC2-2/-3, EC3-33)
ECN-H60 Discharge temperature sensor (EC3-6/7/8/9)
Transformers convert from 230V mains supply voltage to 24V used by most controllers:
ECT-323 capacity: 25VA
ECT-523 capacity: 50VA
ECT-623 capacity: 60VA