Ashcroft GC55 - Differential Pressure Transducer with Digit Manuel d'utilisateur télécharger pdf (Page 9)

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If noise is present in the power supply / wires the pressure display can fluc-

tuate and provide incorrect output. Care should be taken to keep the GC55

power supply wires from high voltage lines and use a power line with a high

noise rejection ratio.

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Store in a location in compliance with the environmnetal rating of the unit

and within –20 to +60C (–4 to 140F).Avoid direct exposure of the display to

sunlight

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Although this is a solid state device a twice yearly visual inspection is rec-

ommended along with regular zero adjustment if necessary.

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PLEASE NOTE: Only the “SEL” function is available from the case exterior,

accesss to all other functions requires the cover to be removed. Do not use

sharp objects to press the keys as this can puncture the panel. See illustra-

tion 1 and illustration 2.

External Panel and Functions (SEL key can be operated externally)

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The terminals are as shown below. Connect power only after checking wiring.

After power is turned on, wait at least 15 minutes before performing a zero

adjustment or measurement.

Power supply (−)

Power supply (＋)

Cable Gland or 1/2 FNPT

Conduit Connection

COM. (Switch)

OUT 2 (Switch)

OUT 1 (Switch)

Analog output

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Ashcroft GC55 - Differential Pressure Transducer with Digit Manuel d'utilisateur Page 9