English Instruction Manual TAP / Temperature And Pressure Gauge
26
Calibration of pressure gauge
Pressure calibration
1. Turn off the TAP.
2. While holding [UP / MENU] button, press [ON / OFF] button, the display shows
„P-CALL“
3. Press [DOWN / SET] button until the display shows „Password 00“
4. Press [UP / MENU] button shortly to adjust the number to „Password 8“
5. Press [DOWN / SET] button until the display shows a reading which is presenting the
unload pressure. (i.e. 0.0 psi)
6. Press [DOWN / SET] awhile to enter calibration
Ensure all the refrigerant is exhausted from TAP valve or connected hoses
before performing calibration. The accuracy will be affected due to the
remaining refrigerant.
7. While entering calibration, the display shows „400.0 psi“. The default pressure of
calibration standard is 400 psi.
8. Press [UP / MENU] button shortly to select the calibration standard. The inlet
pressure must be equal to the calibration standard pressure.
9. Press [DOWN / SET] awhile for calibration standard confirmation; the display shows
the reading of unloaded pressure.
10. Wait until the reading of unload pressure ist stable, pressuirze 400 psi (the inlet
pressure must be equal to the calibration standard pressure). The display shows the
corresponding pressure value (i.e. 400.0 psi)
11. When the reading is stable, press [DOWN / SET] for confirmation. Now the display
shows „END“
12. Press [DOWN / SET] awhile to quit the pressure calibration.
Summary of Contents for 4687785
Page 29: ......
