Vigilantplant TDLS8000, Руководство пользователя

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<9. Inspection and Maintenance>
9-19
IM 11Y01D01-01EN
Internal calibration cell
purge discharge
Zero gas (nitrogen gas)
or span calibration gas
or check gas*
Nitrogen gas*1 *3
Analyzer internal purge
discharge
Sealed
or
Exhaust
Calibration cell LU SCU
Analyzer internal purge
discharge
Nitrogen gas
*1 *3
Nitrogen gas*2
Nitrogen gas*2
Sealed
or
Exhaust
*1: Max. output: 0.02 MPa
Normal flow rate: < 2 L/min
*2: For Explosionproof/Flameproof type
*3: For Explosionproof/Flameproof type,
flow rate is 150 ml/min
Figure 9.11 Purge gas piping diagram
When piping is complete, check for leaks such as by using Snoop. Use nitrogen gas for this
purpose. For Explosionproof/Flameproof Type, at 150 mL/min, no more than 0.04 MPa.
(5) Feeding purge gas
When wiring and piping are complete, feed the gas.
Feed the appropriate gas for offline work at a flow rate no more than 2 L/min at a pressure no
more than 0.02 MPa.
(6) Turning the power on
Turn the power on. Check that the TDLS8000 starts normally.
9.3.3 Performing Calibration and Offline Validation
Refer to sections 9.4, 9.5, and 9.6, and perform offline work.
For each kind of offline work, the settings may be different. Change the settings as necessary.
9.3.4 Returning the TDLS8000 to the Process
When offline work is complete, return the TDLS8000 to the process. Follow the procedure below.
NOTE
Check that the process is stopped before proceeding with this procedure.
(1) Switching the span calibration gas or check gas
If hazardous gas is flowing (e.g., CO gas), switch it to nitrogen gas. Wait for the gas to be
completely replaced before proceeding.
(2) Stopping the gas
On the TDLS8000 display, check that the calibration gas concentration has dropped to zero,
and then stop all purge gases.
(3) Removing piping
Check that there is no residual internal pressure, and then remove the piping.
(4) Turning the TDLS8000 off
Check the above items, and then turn the TDLS8000 off.
3rd Edition: Jun. 10, 2016-00