Bacharach HI FLOW Sampler, Инструкция

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Calibration Hi Flow Sampler
Instruction 0055-9017
44
Figure 4-1. Calibration Equipment Setup
4.3 Check Calibration Procedure
This procedure checks the calibration of both the leak-gas sensor and
the background-gas sensor using 2.5% CH
4
. After setting up the
calibration equipment as described in Section 4.2, proceed to check the
instrument’s sensor calibration 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 for its warm-up period to complete
before proceeding with Step 3.
3. Apply 2.5% CH
4
from the calibration equipment to the instrument’s
BACKGROUND inlet port.
4. From the Main Screen select Menu > Calibration > Verify
Calibration to begin the calibration verification process. Observe that
the gas-sampling pump motors should start.
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 0 9 : 4 5 : 3 0
B a c k ( % ) 2 . 5 0
L e a k ( % ) 0 . 0 0
[ 0 0 0 5 ] ( M ) S - -