DALEMANS DAT 420 Скачать руководство пользователя

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4.4.

Troubleshooting

Problem

Possible cause(s)

Non-zero reading

▪

Possible presence of gas in the detector area.

Non-zero reading when no gas is present

▪

Detector needs calibration.

Reading too high or too low

Zero reading in presence of gas

▪

Wrong or defective electrical connection.

▪

Sintered or sensor blocked with dust.

▪

Sintered or sensor contaminated. Replace sin-

tered AND sensor.

4.5.

Spare parts and accessories

Part or accessory

Part number

Cable gland -

Ex “d” M20 (6.1

- 11.7 mm)

PRE00000032

Ferrite

FER00000001

Junction box -

Ex “d”

BOI00000188

Key for locking screw (1.5 mm hex key)

OUT00000115

O-ring 17 x 2 mm

MEC00000012

Screw - Locking screw of the junction box cover

VISVIS00067

Screw - M4 x 6 mm

VISVIS00042

Screw for locking the body of sensing head

VISVIS00066

Sensing head - FPH01

Sensor gasket

MEC00000018

Sintered metal filter

MEC00000010

Spanner for base of sensing head (30 mm)

OUT00000114

Spanner for top of sensing head

OUT00000113

Stopper plug - Ex d M20

PRE00000033

Terminal block - Ex

“

”

2 position

BOR00000087

Transmitter board - 4-20 mA

BASTRX00017

* Depends on the type of sensor used

Содержание DAT 420

Страница 1: ......

Страница 2: ...ever means without the prior written consent of DALEMANS s a is strictly forbidden All of the information contained in this document is non contractual and is subject to modification without warning D...

Страница 3: ...Overview 8 2 2 Sensing head 9 2 3 Dimensions 10 3 INSTALLATION 11 3 1 Location 11 3 2 Mounting 12 3 3 Field wiring 13 3 4 Connection to a DALEMANS control unit 14 3 5 Connection to a Programmable Logi...

Страница 4: ...nufacturer Maintenance must be performed according to the procedure given by DALEMANS or his local representative Maintenance or service attempts without observing these instructions or with out the a...

Страница 5: ...ent Gas I Methane Intended for use in mines IIA Propane Intended for use in other locations than mines IIB Ethylene IIC Hydrogen Dust IIIA Combustible flyings IIIB Non conductive dust IIIC Conductive...

Страница 6: ...Waste Electrical and Electronic Equipment WEEE These provisions are intended to preserve the natural resources used for manufacturing this product and to avoid the dispersion of substances poten tial...

Страница 7: ...ous areas Figure 1 identification and certification label Approval Code Definition see Directive 2014 34 EU for further details II Non mining electrical equipment group for potentially explosive atmos...

Страница 8: ...le for Use in hazardous areas other than mines ATEX group II equipment category 2 Use in zone 1 and 2 gas and 21 and 22 dust hazardous areas of explosive atmospheres Operating at temperature from 10 C...

Страница 9: ...e gas That small current is then measured and converted by the 4 20 mA transmitter of the DAT 420 The sensing head of the DAT 420 consists of A flameproof d sensor housing base body top A sintered met...

Страница 10: ...www dalemans com 10 2 3 Dimensions Figure 4 DAT 420 dimensions in mm...

Страница 11: ...t be taken into account Consider the combination of sources of gas release with propagation effects The detector should be protected against operational hazards of the plant The detector should be pro...

Страница 12: ...s below Attach the detector using suitable screws and plugs Always use the original wall mounting bracket supplied with the detector The sensing head should never be installed pointing upwards Ensure...

Страница 13: ...DALEMANS recommend using colour coded cable with solid wires Use a shielded or a screened twisted pair cable The acceptable cross sectional area of the cable is 0 5 mm The maximum cable length should...

Страница 14: ...Loosen the cable gland cap nut insert the cable into the cable gland and tighten Connect the wires to the 2 position terminal block according to the diagram below The cable wires must be stripped and...

Страница 15: ...e Loop resistance The supply voltage applied to the detector has direct influence on the MAXIMUM loop resistance This resistance includes the cable resistance and the shunt resistor of the PLC Example...

Страница 16: ...rminal connection does not exceed 1 mm distance Equipotential bonding may be provided using either the internal or the external connection For the external connection the bonding conductor should be a...

Страница 17: ...nscrew the sensing head top using the suitable tool OUT00000113 Replace the sinter metal filter with a new one MEC00000010 Screw the sensing head top back on again and tighten Make sure the sensing he...

Страница 18: ...t number Cable gland Ex d M20 6 1 11 7 mm PRE00000032 Ferrite FER00000001 Junction box Ex d BOI00000188 Key for locking screw 1 5 mm hex key OUT00000115 O ring 17 x 2 mm MEC00000012 Screw Locking scre...

Страница 19: ...n sulphide H2S 50 ppm Nitrogen dioxide NO2 20 50 ppm Oxygen O2 25 Sulphur dioxide SO2 20 ppm Operating temperature 10 C to 40 C Storage temperature 40 C to 80 C Ambient humidity 20 90 HR Intermittent...

Страница 20: ...Rue Jules M lotte 27 B 4350 Remicourt Tel 32 0 19 33 99 43 Fax 32 0 19 33 99 44 sales dalemans com OFFICIAL DEALER...

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