HVG-2020A Instruction Manual
Page 7 of 29
Specifications
WARNING: Do not operate instruments exceeding the specifications listed below. Failure to
heed this warning could result in serious personal injury and/or damage to the equipment.
Range:
0.1 Torr to 1000 Torr
Accuracy:
± (0.1% of r 0.5 Torr) includes non-linearity, hysteresis,
repeatability at ambient operating temperature without
temperature/humidity effects after 2 hours warm up followed by zero
adjustment
Warm up time:
Within rated accuracy at atmosphere: 30 minutes (typical)
For zero adjustment: 2 hours (typical)
Installation orientation:
any
Internal volume:
0.6 cc (1/4” stub tube, other connections will be larger)
Maximum Pressure:
Maximum operating:
1000 Torr
Maximum overpressure: 2000 Torr / 25 psig (no change in performance)
Burst pressure:
3000 Torr / 45 psig
Operating Temperature:
-20°C to 70°C
WARNING: Operation above 60 °C ambient may result in case temperatures capable of causing
burns. Operation near the temperature extremes for more than 48 hours could result in display
degradation.
Humidity:
30 to 90 %RH, non-condensing
Thermal Zero Shift:
< 8 Torr (over -20 to 70°C range)
Thermal Span Shift:
< 0.6% of reading (over -20 to 70°C range)
Leak Integrity:
< 1x10
-9
std. cc/s
Analog Output:
0-1 VDC, 0-5 VDC, 0-10 VDC (short-circuit protected, 1 kΩ min load)
0-20 mA, 4-20 mA (short-circuit protected, 1.2 kΩ max load)
Power Requirements:
With display: 2 watts max. / 12 to 36 VDC (1.5 W typ. @ 24 VDC)
No display: 1.8 watts max. / 12 to 36 VDC (1.3 W typ. @ 24 VDC)
Class 2 power 150 VA max fused
NOTICE: Use of an underpowered or under-voltage supply could result in equipment damage.
WARNING: Do not power with isolated drive circuits that are more than 36 volts above ground
potential or could reach 36 volts in the event of a fault. Failure to heed this warning could
result in serious personal injury and/or damage to the equipment.