Nic Mercury/RH-PE, Инструкция по эксплуатации

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5. Measurement
16 Mercury/RH-PE
‒
Mercury collection-tube reheating furnace for the PE-1
No.600-2113-03
5.4.5.
Measurement sequence
To commence measurement, select [Run]-[Start] from the menu, or click the icon.
Alternatively, press F5 on the keyboard to start measurement.
The measurement sequence proceeds as follows:
Operation Status name Period
1 Heating of the
collection tube
SAMPLE 120 seconds
2
Ar substitution 1 PURGE1 30 seconds
3
Ar substitution 2 PURGE2 30 seconds
4
Ar substitution 3 PURGE3 10 seconds
5
Ar substitution 4 PURGE4 30 seconds
6
Measurement MEASURE Period specified in the measurement parameter
7
Cooling COOL 30 seconds
5.4.6. Measurement interruption
To interrupt the measurement, select [Run]-[Stop] from the menu or click the icon.
Clicking the icon terminates operation on completion of the current measurement.
Clicking the icon immediately starts the cooling process, and the equipment
returns to READY status when cooling has completed.
6. Maintenance
6.1. Criteria for judging equipment failure and troubleshooting
Listed below are criteria for judging whether the equipment is operating properly or not.
(If the equipment does not satisfy any of these criteria, take the appropriate measures
given in "Troubleshooting" described in Sections 6.2.1 to 6.2.3.)
(1) A blank value should be low (0.01 ng or less). → 6.1.3
(2) After a standard mercury gas is measured, the blank value should not significantly
increase. (As a guide it should be approximately 1% or less of the mercury measured
right before.)
→ 6.1.3
(3) When a standard mercury gas is repeatedly measured its reproducibility should be
within
±
3%. → 6.1.2
(4) A calibration curve drawn using a standard mercury gas should be linear with a
variation of
±
5% or less. → 6.1.2
(5) When a calibration curve is drawn for a low mercury weight region (1 ng or less), the
y-intercept of the curve should not be negative. → 6.1.1
(6) When a standard sample is measured before and after measurement for the collection
tube, the difference between the measured values should be within the measurement
error.
→ 6.1.1
(7) The intensity of fluorescence should be at least 70% of that at the time of delivery.
→ 6.1.1