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1. Although the unit is bi-directional, which means it can be used in both flow directions, the
preferred direction is indicated on the block. When the flow meter is used for reverse flow
tests, slightly lower accuracies may be obtained depending on the oil viscosity, density and
compressibility.
2. The unit can be connected to the hydraulic circuit by means of flexible hoses or rigid pipes,
8" (200 mm). The use of quick-disconnect couplings can save time. The hoses and fittings
at the inlet to the unit must be of adequate size for the flow being tested. Elbows, rotary
couplings etc., at the inlet and outlet ports should be avoided to ensure accurate readings.
3. Connect the cable and micro-bore hose assembly at the readout; then connect to the unit.
IMPORTANT, after testing, disconnect at the unit first to avoid oil spillage.
4. After installing it is important to ensure that all connections are tightened and the oil can
flow freely throughout the hydraulic system BEFORE running the machine at full speed.
Check that the circuit is correctly connected and the load valve is fully open; also quick
disconnect couplers MUST be open. IMPORTANT: Start the pump momentarily to ensure
there is no obstruction that could cause pressure build-up.
5. Ensure that the appropriate calibration factor is entered.
6. The readout has an automatic electronic system which shuts the power off after
approximately 15 minutes should you forget. To reactivate, press the ON key.
Installation guidance
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