Enmet ISA-44-RAL-OD Manual do Utilizador descarregar pdf (Página 20)

ENMET Corporation ISA-44RAL-OD / ISA-44RAH-OD

7.0 Routine Maintenance7.0 Routine Maintenance

Since the ISA-44RAL-OD/RAH-OD is a safety instrument, it requires periodic testing and recalibration. Refer to

Operation and Calibration sections of this manual for testing and recalibration procedures.

AT REGULAR INTERVALS:

1. Rotate operation switch to PURGE ON. This interval varies with the amount of contaminants present in the air

system, but purge for at least 10 minutes. Rotate operation switch to OPERATE when purging is complete.

2. Check the unit for mechanical damage or obvious malfunctions (i.e. burned-out lamps).

3. Check the oxygen channel response periodically.

4. Check the water level and verify air bubbles.

5. If the unit will not operate, check the fuse (See Figure 2). If this fuse is cracked or broken, replace it (ENMET part

no. 64004-001). If the instrument remains inoperative after this fuse is replaced, send the instrument in for repair.

7.1 Replacement Parts

Table 4: Replacement Part Numbers

Description ENMET Part #

Metering Orifice Assembly (s/n below 2311) 03415-000

Orifice 03415-001

Pressure Regulator 73089-000

Humidifier RAL Regulator Assembly 03406-000

Male Coupler Plug (quick-release fitting) 73061-000

Gauge (0 - 30 psi) 73089-003

Red, Lamp/LED-for units with s/n 2271 and below 52006-003 *

Green, Lamp/LED-for units with s/n 2271 and below 52006-001 *

Amber, Lamp/LED-for units with s/n 2271 and below 52006-002 *

Lamp-for units with s/n 2283 and above 63001-002

Lens, Red-for units with s/n 2283 and above 62012-001

Lens, Green-for units with s/n 2283 and above 62012-002

Lens, Amber-for units with s/n 2283 and above 62012-003

5 wire RAL-OD Cable Assembly (without oxygen cell) 03042-109

CO Meter 03411-000

Oxygen Meter 03411-005

Oxygen Cell, S-2 67013-008

Hydrocarbon Filter with hardware 73089-060

Fuse 1 Amp 64004-001

* Replaces 12RC lamps will appear different

7.2 Calibration Equipment

Table 5: Calibration Gas Part Numbers

Description ENMET Part Number

10 ppm CO in air 03219-010

20 ppm CO in air 03219-020

50 ppm CO in air 03219-050

200 ppm CO in air 03219-200

20.9% oxygen in nitrogen 03296-209

17.0% oxygen in nitrogen 03296-170

Calibration Gas Fixture 03605-001

Carry Case 73083-000

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