Bacharach HI FLOW Sampler, Инструкция

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Hi Flow Sampler Calibration
Instruction 0055-9017
45
5. Disconnect the hose from the BACKGROUND inlet port and connect
it to the GAS inlet port.
6. Again wait several minutes for the gas reading to stabilize. At this
time the gas concentration shown on the display should match the
concentration stamped on the calibration gas cylinder.
1 1 / 2 2 / 0 4 1 0 : 4 5 : 3 0
B a c k ( % ) 0 . 0 0
L e a k ( % ) 2 . 5 0
[ 0 0 0 5 ] ( M ) S - -
7. Disconnect the hose from the GAS port, and then allow the pumps to
run until both the
Back and Leak readings fall to zero percent.
8. Press the
ESC
key three times to return to the Main Screen.
Note:
If gas is still present in either sensor chamber when ESC is pressed,
the instrument will automatically begin to purge the sensors until all gas is
removed from the instrument.
4.4 Gas Calibration Procedure
This procedure calibrates both the leak-gas sensor and the background-
gas sensor at 2.5% and 100% CH
4
. After setting up the calibration
equipment as described in Section 4.2, proceed to calibrate the sensors
as follows:
1. Before turning ON the instrument, be sure that the calibration
equipment is
not connected to the instrument’s GAS or
BACKGROUND inlet port, and that the instrument is in an area of
clean air.
2. Turn ON the instrument and wait its warm-up period to complete
before proceeding to Step 3.
3. From the Main Screen select Menu > Calibration > Calibrate
Sensors to display the Sensor Calibration Screen.
0 2 / 2 1 / 0 3 0 9 : 4 5 : 3 0
B a c k g n d @ 2 . 5 % C H 4
B a c k g n d @ 1 0 0 % C H 4
L e a k @ 2 . 5 % C H 4
L e a k @ 1 0 0 % C H 4
[ 0 0 0 5 ] ( A ) S - -
4. Using the

keys, highlight the sensor to be calibrated along with its
gas level. (In the example above, the background sensor will be
calibrated using 2.5% CH
4
.)