MEDC PH1 User Manual

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The unit is operated by lifting the spring loaded f ap on the front of the unit, then pulling down the handle

underneath. The pull handle will rotate downwards through 90 degrees. The pull handle will remain latched in the

operated position until manually reset. The lift flap can be lowered back to its original position until the unit needs

to be reset.

The reset the unit, first raise the lift flap away from the pull handle. The key (provided with the unit) is inserted into

the two holes located underneath the pull handle in the front face until resistance is felt. Depress the key further to

release the pull handle which can be returned to its original position. Finally, lower the lift flap back to its original

position.

Noottee:: When resetting the unit, please ensure the key is depressed centrally with even pressure on each leg of the

reset key.

The operating voltage of the unit is stated on the certification label.

GEEN

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N G

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During the working life of the unit, it should require little or no maintenance. GRP will resist attack by most acids,

alkalis and chemicals and is as resistant to concentrated acids and alkalis as most metal products.

However, if abnormal or unusual environmental conditions occur due to plant damage or accident etc., then visual

inspection is recommended.

If the unit requires cleaning, then only clean the exterior with a damp cloth to avoid electrostatic charge build up.

If a unit fault should occur, then the unit can be repaired by MEDC. All parts of the unit are replaceable.

If you acquired a significant quantity of units, then it is recommended that spares are also made available. Please

discuss your requirements with the Technical Sales Engineers at MEDC.

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IIEEC

CEExx uunniittss

Certified to IEC 60079-0, IEC 60079-1 and IEC 60079-31

Ex d unit (IEC certification No. IECEx ITS 11.0021X)

Ex d IIC T6 (-55°C to +70°C) Gb

Ex tb IIIC T85°C (-55°C to +70°C) Db IP66

The IECEx certificate and product label carry the IECEx equipment protection level markings

Gb and Db

Where Gb signifies suitability for use in a Zone 1 surface industries area in the presence of gas.

Db signifies suitability for use in a Zone 1 surface industries area in the presence of dust.