Fluke GBK-110M, Instructions Manual

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GBK-50M GBK-110M
Instructions
10
Booster Drive Shutoff Valve
The booster drive shutoff valve (
M
) is a ball-type, 90 ° turn valve. Use the booster drive shutoff valve to prevent flow
of regulated drive air to the booster. Consider this valve an ON/OFF switch for the booster.
Accumulator
The accumulator on the booster is a high-pressure hose which serves as a reservoir of high-pressure gas so the gas
boosted to high pressure can be stored. This helps to provide a continuous flow of high-pressure gas to the pressure
controller.
Drive Air Regulator/Filter
The drive air pressure regulator (
O
) is a self-venting type of regulator with an outlet pressure control range of
0 MPa to 1 MPa (150 psi). There is a pressure relief valve which opens at approximately 830 kPa (120 psi). Fluke
Calibration recommends the drive air pressure to be set to 810 kPa (118 psi). Maximum inlet pressure is 1.7 MPa
(250 psi). Pull out the control knob to make adjustments and push in to lock into position and prevent accidental
changes.
The regulator also includes a filter and a filter bowl drain tap. Always adjust the regulator from a lower pressure to a
higher pressure. This is due to the tendency of a pressure regulator to drift in the opposite direction of the pressure
adjustment. Adjusting the regulator in this way helps to avoid an overpressure condition due to regulator drift.
High-Pressure Regulator
The high-pressure regulator (
F
) is a venting type regulator with an outlet pressure control range of 1.4 MPa to
70 MPa (200 psi to 10 000 psi) for the GBK-50M and 3 MPa to 124 MPa (450 psi to 18 000 psi) for the GBK-110M.
Always adjust the regulator from a lower pressure to a higher pressure. This is due to the tendency of a pressure
regulator to drift in the opposite direction of the pressure adjustment. Adjust the regulator in this way to help avoid an
overpressure condition due to regulator drift.
Gauges
The gauges are:

The booster drive pressure gauge (
N
) indicates the pressure set by the drive air regulator (
O
).

The test gas supply gauge (

) indicates the pressure connected to the SUPPLY port (

).

The high-pressure gauge (
G
) indicates the pressure set by the high pressure regulator (
F
) and present at the
HIGH PRESSURE OUT port.
Output Equal to or Less than the Supply Pressure
To Set the High-Pressure Output Equal to or Less than the Supply Pressure see the following.
Note
Make sure to read, understand, and complete the instructions in the previous sections before
you continue.
It is not necessary to operate the gas booster when setting pressures up to the value of the test gas supply.
Test gas supply pressure is always present at the inlet of the high pressure regulator whenever it is
supplied to the Product.