HHP680 Manometer
3
Figure 2. Positions of Switch and Button
HHP680 Calibration Procedure
Only qualified technicians who have access to the items, as
following should perform the following calibration procedure.
Equipment:
Pressure Calibrator, Pressure Pump
Pressure Calibration
1. Connect the calibrator. meter and pressure pump.
2. Set the range to the 0.01", then press ”Zero” button.
3. Apply a 19.00 inH
2
O pressure to the meter and calibrator. (do not apply
pressure that exceeds
20inH
2
O
.)
4. Adjust VR2 until display reads 19.00.
N O T E
2
4
3
1
HHP680
MANOMETER
( > 2 Sec) in WC
H
0.01"
0.01"
0.1"
0.1"
MAX
ZERO