Handling Cautions. Kobold Pad, PAD-...N

PAD

3. Handling Cautions

This chapter consists of cautions for transmitter handling and storage, selection of installation locations, insulation structure, etc.

[Quick Reference Manual]

Step Job Job Details Instrument

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Unpacking

Model and

Specifications

Check

Storage

Calibration Bench

Installation

Locations

Mechanical

Considerations

Electrical

Considerations

Mounting and

Installation

Calibration on

Spot

Pressure

Operation

Unpack transmitter packing

Make sure whether the delivered transmitter is same as options attached on its nameplate

Nameplate

Places not exposed to water, non-vibration and nonimpact area

Ambient temperature 25 deg C and relative humidity

65 % RH

Configuration of Range, Zero/Span, Unit, Tag,

Damping Time, Transfer Function, DA Trim and other parameters

Where ambient temperature is not fluctuated

Where no corrosion happens by chemical materials, etc.

Where vibration and impact is not severe

Where maintenance is very easy

Where transmitter can be handled easily

Be cautious of the pressure leaks

Connect 24 V

DC

(Recommended Power Supply is 11.9 V

DC

– 45 V

DC

)

For HART communication, total resistance on transmitter terminal loop should be 250 – 550 Ohm.

For mounting transmitter, an appropriate bracket should be used.

Transmitter should be firmly to its bracket.

Sensor Zero Trim is highly recommended during first installation and start-up. During a Zero trim the zero baseline of transmitter is established.

Before initiating zero trim make sure that PV value of transmitter is zero and current output is at 4 mA

Do not apply the differential and/or full line pressure suddenly.

Close equalizing valve of 3/5 valve manifold, then, open stop valve on high and low side slowly and simultaneously.

- Make sure that transmitter operates within specs.

- HHT

- Pressure Source

- Galvanometer

(Engineering)

(Engineering)

(Engineering)

(Mounting and

Installation)

HHT or

Zero/Span button

(Applying pressure)

Visual or HHT

PAD K15/0522 ATEX page 11