ROHRBACK COSASCO SYSTEMS CORRATER 9020 Uživatelský manuál stáhnout pdf (Strana 10)

Chapter 3

Transmitter Enclosure

The Corrater transmitter enclosure is explosion-proof (flame-proof), and is sealed with an O-ring

so as to be gas-tight when fully tightened

Warning: It is very important to make sure that the transmitter cover is fully tightened

down on to the O-ring seal, to avoid in-leakage of water or moist air that may

subsequently cause condensation. Water or condensation is likely to cause malfunction

of the transmitter and even corrosion of the electronics. A corrosion inhibitor pad is

included inside the transmitter for added protection.

The transmitter cover can be tightened, with the aid of a 2" center by 1/4" pin spanner wrench on

the base of the unit and by hand or with a 3/8" square bar or similar on the cover. See Figure 4.

The cover of the transmitter can be locked in place with the 1/16” Allen screw. See Figure 5.

This is a requirement of the explosionproof (flameproof) enclosure to prevent accidental

loosening of the cover. When connecting the transmitter to a probe and power/communications

cables in a hazardous area, explosionproof (flameproof) connectors are used as shown in Figure

6. Take care when making these connections not to damage the sealing O rings. A small amount

of white grease or silicone grease should be used to lubricate the O rings to assist assembly.

Make sure that the connector nuts are fully tightened over the O rings, and that the Allen screws

are then locked to prevent loosening. The connections may only be made and unmade in a

hazardous area with the power shut off to the system. Take care when disconnecting a cable or

probe to make sure that the Allen locking screw has been loosened first.

Figure 3 Model 7012 and 6112 Probes

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 30 31

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ROHRBACK COSASCO SYSTEMS CORRATER 9020 Uživatelský manuál Strana 10