GB-152-AF™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company
Page 12
2.5
INITIAL START UP
After installing the gas booster (see Section 2.4.2), perform the initial start up as follows:
Supply drive air: Check that the Drive Air Control Kit
SHUTOFF
valve is in the
OFF
position and that
the
DRIVE ADJUST
regulator is set to zero (fully counterclockwise). Apply drive pressure to the
SHUTOFF
valve (see Section 2.3.2.1 for information on drive air supply requirements).
Depending on the drive pressure set by the DRIVE ADJUST regulator, GB-152-AF may generate pressure
over 70 MPa (10 000 psi). To limit the maximum pressure that can be generated by the booster, limit the drive
air supply to the Drive Air Control Kit to 75 psi (500 kPa) (see Section 2.3.2.1).
Supply high pressure instrument gas: Check that all connections to the high pressure
IN
and
OUT
ports are secure. Apply high pressure gas to the high pressure
IN
port
(see Section 2.3.2.2 for
information on high pressure instrument gas).
Ensure the high pressure supply does not exceed 3 000 psi (20 MPa). Pressure above this may result in
a failure that could damage the instrument and/or cause personal injury.
Adjust the
DRIVE ADJUST
regulator: Rotate the
DRIVE ADJUST
regulator knob (clockwise)
while observing the set pressure on the
DRIVE
gauge. Set the drive pressure to the maximum
desired high pressure output divided by the booster ratio (152 for GB-152-AF). Do not set the
regulator to more than 65 psi (450 kPa). Remember that when the
SHUTOFF
valve
is in the
ON
position, the booster will operate until the high pressure output is equal to the drive air setting times
the booster ratio.
The DRIVE ADJUST regulator is NOT self venting so it cannot be used to set pressure lower than the
current pressure when the SHUTOFF valve is OFF. If you overshoot the desired set point, set the SHUTOFF
valve to ON until the DRIVE pressure is lower than your desired setting. Then set the SHUTOFF valve to OFF
and use the regulator to adjust the pressure in the ascending direction.
Generate high pressure: Check that the booster high pressure output is properly connected. If it is
connected to a GPC1-10000-AF, be sure the GPC1’s
INLET
valve is closed. Set the
SHUTOFF
valve
to
the
ON
position. The booster will begin to cycle and will continue to cycle until it stalls. When it stalls, the
high pressure output is roughly equal to the drive pressure setting times the booster's ratio (152:1).