Fluke 6270A Service Manual page 75

vents any pressure between the sensor and the isolation valve.
6. Type CAL:PRES6:VAL1 xx.xx (xx.xx = value in units must be absolute)
again.
7. Connect the supply line to the supply port.
8. Slowly adjust the regulator to apply 3000 psi absolute to the reference and
the supply port.
9. Type CAL:PRES6:VAL2 xx.xx (xx.xx = value in units must be absolute).
The isolation valve should still be open so that the supply port
pressure gauge receives pressure at this step.
10. Type CAL:PRES6:SAVE
Ball Valve
6270A
High Range Module ≥ 1500 psi
Figure 41. Calibrate the Supply Port
Note
Regulator
Vac
Max 6000 psi Input
Pump
3300 psi Out
3300 6000
Supply Bottle
CGA Fitting
Pressure Controller/Calibrator
PCM Assembly
725
MULTIFUNCTION CALIBRATOR
700 P 04
PRESSURE MODULE
RANGE 15 PSID/G
100 kPa 1 bar
BURST PRESSURE 45 PSIG
V mA ZERO
LOOP
V mA
MEAS
SOURCE
TC RTD
STORE
SETUP
RECALL
Hz
° C ° F
100%
25%
25%
0%
hxn302.eps
69