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Manual: 147-082010_HPM-760-Plus-Vacuum-Gauge Page 4 of 16
1. General Information
This manual contains technical and general information relating to the installation, operation, and
calibration of the Hastings 760 Plus vacuum gauge which is comprised of a piezo vacuum transducer
(760s) and power supply/display.
The 760s piezoresistive type transducer has one side of its diaphragm evacuated to a low reference
pressure then sealed to produce an absolute pressure signal output. This output signal is linear-
proportional to the applied pressure and is independent of gas composition.
The power supply/display provides 24 VDC excitation power for the 760s transducer and a four digit
dual setpoint meter relay for monitoring, measurement and control applications.
For best performance, this instrument should be operated with the appropriate Hastings accessory
items. Attempting to use a Hastings product with other manufacturers equipment may result in damage
to all equipment.
1.1. Features
Piezo Vacuum Transducer (760s):
• Linear voltage or current output
• Absolute pressure measurement, independent of gas composition
• Zero and span, adjustable
• Compact size, 1.5” x 1.5” x 3”
• 0.1 - 1000 Torr range
• Stand alone operation with 15 - 30 VDC input
• All wetted materials 316 stainless steel
• Optional 3-1/2 digit, LCD display
Power Supply/Display:
• Excitation output for use with Hastings 760S piezo vacuum transducer
• 4 1/2-digit high efficiency red LED display
• Two control relays, SPDT, 2 A (max) @ 240 VAC (max)
• Relay set point, set manually from front panel
• 120/240 VAC input power (no hardware settings required)
• Front panel (SP1, SP2) annunciators (LED’S)
• 1/8 DIN case, panel mounting