Excell Precision SP151 manual Maintenance

EXCELL PRECISION CO., LTD

3. Maintenance

Note: For certified systems, you must confirm that the system can be

re-calibrated. Before tearing off the seal for maintenance, a new calibration seal is required for replacing after the maintenance.

Processing the maintenance every the other year. (higher repair and maintenance frequency for particularly harsh environments)

3.1Check SP151 to see if it is surrounded by intact and sealed correctly.

3.2Remove the chassis cover and confirm that the sealing effect, if necessary, to replace the damaged seal strip.

3.3Check all internal cables labeled.

3.4Check the tightness of all connected cables, and repair any loose or damaged connections.

3.5Check the internal and external grounding line, tighten it if loose.

4. Troubleshooting

When the electronic circuit system suffered from surge struck, it will operate automatically and self-recovery. The SP151 service lifespan could be around 20 years, depends on the lifespan of the protection components of the primary gas discharge tube.

Attention

Field cable that connected to two SP151 of the instrumentation, the isolated lines must be connected and with a drain of pipeline.

When the isolated lines suffered from the surge, the gas discharge tube will discharge to the earth to improve the overall protection.

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