Fluke 6270A, Service Manual, Page: 75 / 144

Pressure Controller/Calibrator
PCM Assembly
69
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).
Note
The isolation valve should still be open so that the supply port
pressure gauge receives pressure at this step.
10. Type CAL:PRES6:SAVE
PMM PMM PMM PMM
V
ent
Reference
Te
s
t
Exhaust
Supply
PMM
PCM
6270A
High Range Module ≥ 1500 psi
Ball Valve
Regulator
Max 6000 psi Input
3300 psi Out
Vac
Pump
3300 6000
>3000 psi
N2 Bottle or Booster
Supply Bottle
CGA Fitting
V mA
LOOP
V mA
TC RTD ° C ° F
Hz
100%
25%
25%
RECALL
ZERO
MEAS
SOURCE
STORE
SETUP
0%
MULTIFUNCTION CALIBRATOR
725
15 PSID/G
BURST PRESSURE 45 PSIG
PRESSURE MODULE
700P04
1 bar 100 kPa
RANGE
1
2
hxn302.eps
Figure 41. Calibrate the Supply Port