Heath-consultants Detecto-Pak 4 (DP) Manual de usuario descargar pdf (Pagina 37)

100786-0 Rev. D 05/09

CHAPTER EIGHT

VIII. MAINTENANCE INFORMATION

TROUBLESHOOTING PROCEDURES AND PERIODIC

MAINTENANCE

This chapter deals with troubleshooting procedures and periodic

maintenance.

Each instrument utilized for leak detection and evaluation should be

operated in accordance with the manufacturer’s operating instructions.

1. Instrument should be periodically “checked” while in use to ensure

that the recommended voltage requirements are available.

2. Instrument should be tested daily or prior to use to ensure proper

operation, to ensure that the sampling system is free of leakage, and

to ensure that the lters are not obstructing the sample ow.

3. This instrument is now equipped with an improved cell base and fuel

ow system.

CELL BASE: Changes to the cell base include an improved ceramic

ame orice and re-designed ashback arresters.

FUEL FLOW SYSTEM: Changes to the fuel ow system include an

improved xed fuel ow restrictor that replaces the adjustable restrictor.

The .005” in-line restrictor has also been removed. Also, a 5 micron

lter has been added.

When the instrument is calibrated and adjusted at the factory, a sticker

is placed on the side and end of the case and on the inside housing to

indicate the proper pressure gauge set point for correct fuel ow rate.

Outside will vary from 16-24 psi. Inside ow rate is a constant 30 cc/

min.

Before calibration, and at least once daily, plug in the external pressure

gauge assembly and check the gauge pressure.

If it does not match the set point pressure on the sticker (using a fuel

cylinder with 1000 psig of fuel), remove the plastic hole plug from

the bottom of the instrument and with a 3/16” Allen wrench turn the

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Heath-consultants Detecto-Pak 4 (DP) Manual de usuario Pagina 37