ICM Controls ICM387 Pressure Transducer for ICM325A

The standard design is ideal for demanding HVAC and refrigeration applications where long-term reliability is a must. The transducer is designed to operate with a 5Vdc supply, and to provide a robust 0 to 5Vdc output. The output is ratiometric to supply voltage, allowing the user to maintain accuracy with variation in the supply voltage. The electrical interface is a rugged industry accepted connector. The brass pressure connection has multiple threads. This device maintains accuracy through a wide temperature range.

• Ceramic capacitive sensor
• Durable, compact design
• Accurate performance over wide temperatures
• Overvoltage and short circuit protected
• Brass connector
• Sealed gauge (neoprene seal)
• Discharge and suction pressure monitoring
• Subcooling and superheat calculations
• Compressor oil pressure monitoring
• Condenser fan control
• Compressor staging and unloadin
• Electronic expansion valve control
• Remote systems diagnostics and trending

The solution is to install an ICM Head Pressure Control. 

The ICM325A low ambient head pressure control ensures the condenser fan runs at an optimal speed for maximum efficiency. If the system pressure gets too low or the condenser temperature gets too cold, the ICM325A lowers the fan speed accordingly. Other head pressure controls on the market just turn the fan off completely. This method results in inconsistent head pressure, inconsistent cooling, rattling pipes & ducts, system leaks, and ultimately a shortened life span of the condenser fan motor and compressor.

SPECIFICATIONS:

Pressure Ranges

• 0-500 psi

Performance

• Accuracy: +/- 1.2% span (linearity, hysterisis, repeatability, calibration)
• Temperature error: +/- 0.013% °C
• Operating Temperature: -40°C to +135°C

Electrical

• Supply Voltage (Vin):  4.5 to 5.5 Vdc
• Output Voltage (Vout):  0.5 to 4.5 Vdc typical
• Supply Current: 8 mA (maximum @ 5.5 Vdc with no load)
• Output Current: 2.5 mA (maximum sink or source)
• Output Load: 10K ohms typical Output Output Response Time: 10 mS
• Overvoltage Protection: 16 Vdc
• Reverse Voltage: 14 Vdc
• Short Circuit Protected: Yes
• EMC (512 MHz-1 GHz): 25 V/m
• EMC (10 MHz-512MHz): 50 V/m
• ESD (CDF-AEC-Q100-002): 15k V

Physical

• Proof Pressure: (5X) 15-75 psi, (3X) 100-300 psi, (2X) 500 psi
• Burst Pressure: 2CP5 1500 psi/2500 psi minimum, 2CP50 2500 psi minimum
• Cycle Life: 10M F.S. cycles
• Random Vibration (50-2000 Hz): 11g
• Drop (any axis): 1.5 m
• Electrical Connection: Nema 4X, IP65