1-2 General Information
Introduction
The Hastings Capacitance Manometer Power Supply (HCM-300) supplies stable
±15 VDC specifically for operating the Hastings Capacitance Manometer Trans-
ducer. The transducer returns a signal to the HCM-300 which displays an accurate
pressure reading.
Specifications
Output Voltage......................................................................................... ±15 VDC ± 2.5 %
Power Input................................................................................. 115 VAC ±10%, 50/60 Hz
Signal Input ......................................................................................................... 0 - 10 VDC
Display .......................................................................................................................4½ digit
Analog Output Voltage......................................................................................... 0 - 10 VDC
Min. Load Impedance .................................................................................................. 10 kW
Display Type ..................................................................................0.52” (13.2mm) red LEDs
Warm up Time.............................................................................................................. 15 min
Operating Temperature.............................................................................................. 0 - 500C
Load Regulation ....................................................................................±1% (10 mA-30 mA)
Accuracy................................................................................................................ ± 3 counts
Ordering Information
Ordering options for the HCM-300 series power supply:

HCM-300-XX-XX

Cable length
-10 (10 cable)
-99 (custom length, customer specified)
Display Configuration
-11 (10.000 Torr)
-12 (100.00 Torr)
-13 (1000.0 Torr)