Heath volume corrector (hvc) overview – Heath Consultants Heath Volume Corrector (HVC) User Manual
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Heath Volume Corrector (HVC) Overview
The HVC 325 is a microprocessor based, self-contained system designed for the purpose of performing 
ideal gas law calculations using integral pressure, temperature and volume sensing devices.
HVC Features
• Intrinsically safe: Class I Div I Group D (without internal modem) 
• Single Alkaline “D” battery provides power for up to 4 years 
• Single Lithium “AA” Backup battery will provide 100% operation for up to 1 year after main 
battery is depleted
• Measures & records pressure and temperature sensors every meter revolution or every min
(programmable)
• Continuous LCD defaults to Corrected Volume. Scrolling allows Uncorrected Volume, Pressure,
Gas Temperature, Correction Factor, Main and Lithium Battery Voltage, as well as any active 
Alarm to be displayed. 
• Non-volatile Flash memory saves Calibration, Transducer Coefficients Configuration & Site info
if all power is lost
• Profiler data recording- Circular log: 130 days/hourly: Time/ Corrected/ Uncorrected/ Ave
Pressure/ Ave Gas Temperature
• Event Log (Records alarms & configuration changes) 
• System Alarms (H/L Press, H/L Temp, main and lithium backup battery) 
• Contract Usage Alarms (High Day/ Warning Month/ High Month) 
• Contract Management (Nomination/ Allocation) 
• All alarms can be reset via scroll button (No laptop needed) 
• Call out upon alarm 
• Remote Communications Ready (External Direct port & Internal Remote RS232’s) 
• Multi-Drop to several instruments from one modem (Up to 62) 
• Previous Month Total Volumes (Uncor & Corr) can be displayed on LCD 
• Max Day Volume “total” & Date stamp of Max Day can be displayed on LCD (Max Day can be 
reset via scroll button)
• Protocols included: Sandia (Native)/ Modbus RTU or ASCII 
• Pulse Outputs (Uncorrected & Corrected) 
• Units of measure (PSIA, KPA, BAR Deg. F/ Deg. C) 
• Reliable Falling magnet/ Reed switch input 
• Index uses all brass miter gears that are easily reversible for CW & CCW meter direction 
• HVC Firmware can be upgraded via PC 
• IP64, Aluminum, Powder coated paint over chromate surface prep, lockable stainless steel hasp 
closure (Saltwater spray tested)
• HVC Host software will also operate the LVC and XVC devices 
• HVC Host software is very user friendly 
• HVC Host is compatible with Windows 7, Win Vista and Win XP 
 
 
 
 
 
