Gastec GSP-501FT, Инструкция по эксплуатации

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7. Flow Calibration
7.1 About Flow Calibration
This pump is shipped calibrated. Perform flow calibration regularly (about once a month) to ensure
the specified accuracy. Calibration is possible to guarantee accuracy in the range of flow rate 50 to
500mL/min. The actual flow rate measurement error of this pump is the value obtained by adding the
error of the flow meter for calibration (hereafter referred to as a calibrator) to the following accuracy.
Flow rate: 50-500mL/min Accuracy ±5%RD
Pay attention to the followings when flow calibration.
△
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 error of calibration becomes large.

Calibrate the pump in a stable position. Shock or vibration can cause errors in calibration.

Use short tubes to connect devices as possible. Shorter tubes make the flow rate stable and
calibration error can be reduced.

Make sure to clear the air outlet port. Flow resistance may cause errors in the instantaneous
flow rate and integrated volume.
7.2 Calibration Mode
Use "Calibration Mode" for flow rate calibration.
The calibration mode consists of the following items:
To perform the calibration correctly, perform the flow rate calibration after setting, zero point
adjustment, and inspection in the following order.
1)Setting of Flow Rate Conversion Temperature •••••••••••••Refer to (7.3)
2)Setting the flow rate conversion temperature of the calibrator •••••••••••••Refer to (7.4)
3)Zero point adjustment •••••••••••••Refer to (7.5)
4)Leak check •••••••••••••Refer to(7.6)
5)Flow rate calibration •••••••••••••Refer to (7.7)
●How to activate calibration mode
①
While pressing the "SELECT Button ", press the
"POWER Button ".
Press while pressing