Gastec GSP-501FT, Инструкция по эксплуатации

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6. Settings and Operations
6.1 Connect Sampling media, tubing, and the pump
Connect the sampling media or Gastec detector tube to the suction inlet using the supplied detector
tube adapter or another tubing before the sampling operation. Connect a tubing prepared by the user
to the air outlet to guide the exhaust away from the pump when necessary.
△
Note

Before connecting the detector tube adapter or tubing, check that there is no damage or dust
on the inner wall. Leakage may occur, which may interfere with accurate sampling.

If the suction load is suddenly reduced, the flow rate may not stabilize in some cases (such
as a continuous flow rate variation of 20% or more of the set flow rate). Make sure that the
suction load does not fluctuate suddenly. If the flow rate becomes unstable, stop sampling
once and restart.

Do not block the air outlet port. Flow resistance may cause errors in the instantaneous flow
rate and integrated volume.

The outflow rate from the air outlet port is out of the guaranteed flow rate accuracy.
Also, be careful of the following items regarding placing the pump.
△
Note

Select a place with little airflow and little fluctuation of atmospheric pressure and install the
pump with the inclination of the left and right sides within ±10°. If the left or right inclination
is large, the measured flow rate error becomes large.

Place the pump in a stable position. Shock or vibration can cause errors in flow rate
measurements.

When the suction load is heavy, the pump may move due to vibration depending on the
conditions. When placing the pump on a table, etc., take measures to prevent from dropping.

When used with the tripod, take measures to prevent the tripod from falling over. Otherwise,
mechanical failure may result due to a fall.
 For personal sampling purposes, use the dedicated belt loop pump holder (optional product).