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AFRISO DMU 04 Tradução do manual de instruções original

4.3 Electrical Installation

Connect the device electrically according to the

information specified on the type plate, the following

table, and the connection circuit diagram.

Terminal assignment table:

Electrical

Binder

M12x1

723 (5-

connections

ISO 4400

(4-pin)

pin)

Supply +

Supply −

ground

Shield

Electrical

Bayonet MIL-C-26482 (10-6)

connections

Supply +

Supply −

Shield

Pressure port

Electrical

Cable colors

Field housing

connections

(IEC 60757)

Supply +

IN +

wh (white)

Supply −

IN -

bn (brown)

gnye (green-

Shield

yellow)

Supply + / in +

Supply – / in -

Fig. 4: Connection circuit diagram

NOTE – For unambiguous identification, the

intrinsically safe cable is marked with a light blue

shrinkable tube (around the cable insulation). If a

modification (e.g. a shortening) of the cable is

inevitable whereby the marking at the end of the

cable is lost, the marking must be restored!

(Renewed marking by a light blue shrinkable tube or

by an appropriate marking label)

NOTE – In the case of relative pressure gauges, the

cable contains a ventilation hose for pressure

equalization. Route the end of the cable into an area

or suitable connection box which is as dry as

possible and free from aggressive gases, in order to

prevent any damage.

5. Commissioning



The device has been installed properly



The device does not have any visible defect

In case of highly precise devices with an

accuracy of 0.1 % FSO, a microcontroller-controlled

electronic system is used for signal processing. This

electronic system is used for signal improvement.

Due to the principle, the processing of measured

values requires a longer time than with purely

analog sensors, which only comprise amplification

circuitry. Due to the longer processing time, the

output signal follows the measured value not

continuously but in jumps. In case of relatively

stable and slowly changing measured values, this

property plays a minor role. Compare this with the

information on the adjusting time in the data sheet.

In the case of i-devices with communications

interface, the offset, range, and damping can be

adjusted within the limits specified in the data sheet,

due to the electronic system. The CIS 510

programming kit is required for the configuration.

The kit consists of: Adapt 1, Windows®-compatible

P-Scale 510 programming software, power pack

and connection cable. This can be ordered from

AFRISO as an accessory.

6. Maintenance

Airborne parts, leaking fluids,

electric shock

Always service the device in a

depressurized and de-

DANGER

energized condition!

due to aggressive fluids

Wear suitable protective

clothing,

Attention

e.g. gloves, safety goggles.

In principle, the device requires no maintenance.

If necessary, clean the housing of the device using a

moist cloth and a non-aggressive cleaning solution.

Cleaning of the diaphragm:

Deposits or contamination may occur on the

diaphragm in case of certain fluids. It is

recommended to establish appropriate maintenance

intervals for checking in connection with a function

control purposes.

Clean the diaphragm cautiously using a non-

aggressive cleaning solution and a soft paintbrush

or sponge.

If the diaphragm is calcified, it is recommended to

have the decalcification performed by AFRISO.

Please note the chapter "Service/Repair" with regard

to this.

NOTE – Wrong cleaning may damage the

measuring cell beyond repair. Do not use any sharp

or pointed item to clean the diaphragm.

7. Troubleshooting

Airborne parts, leaking fluids,

electric shock

If malfunctions cannot be

resolved, put the device out of

CAUTION

service and proceed according

In case of malfunction, it must be checked whether

the device has been correctly installed mechanically

and electrically. Use the following table to analyze

the cause and resolve the malfunction, if possible.

Fault: no output signal

Possible cause

Fault detection / remedy

connected incorrectly

Checking of connections

Checking of all line

Conductor/wire breakage

connections.

Checking of ammeter

Defective measuring

(miniature fuse) or of

device (signal input)

analog input of your

signal processing unit

Fault: analog output signal too low/small

Possible cause

Fault detection / remedy

Checking of load

Load resistance too high

resistance (value)

Checking of power pack

Supply voltage too low

output voltage

Checking of the power

pack and the supply

Defective energy supply

voltage being applied to

the device

Fault: slight shift of the output signal

Possible cause

Fault detection / remedy

Cleaning using a non-

Diaphragm of measuring

aggressive cleaning

cell is severely

solution and soft

contaminated

paintbrush or sponge

Recommendation: Have

Diaphragm of measuring

the decalcification or

cell is calcified or crusted

cleaning performed by

AFRISO

Fault: large shift of the output signal

Possible cause

Fault detection / remedy

Diaphragm of measuring

Checking of diaphragm;

cell is damaged (caused

when damaged, send the

by overpressure or

device to AFRISO for

mechanically)

repair

Fault: wrong or no output signal

Possible cause

Fault detection / remedy

Checking of cable; pitting

corrosion on the stainless-

Cable damaged

steel housing as a result

mechanically, thermally or

of damage on cable; when

chemically

damaged, send the device

to AFRISOfor repair

8. Removal from Service

Airborne parts, leaking fluids,

electric shock

Always dismount the device in

DANGER

a depressurized and de-

energized condition!

due to aggressive fluids.

Wear suitable protective

clothing, e.g. gloves, safety

Attention

goggles.

NOTE – After dismounting, mechanical connections

must be fitted with protective caps.

9. Service/Repair

Information on service / repair:

www.afriso.com

[email protected]

9.1 Recalibration

The offset value or range value may shift during the

life of the device. In this case, a deviating signal

value in relation to the set lower or upper measuring

range value is output. If one of these two

phenomena occurs after extended use, a

recalibration in the factory is recommended. Please

note the chapter "Service/Repair" with regard to this.

9.2 Returning the device

Get in touch with us before returning your product

([email protected]).

10. Decommissioning, diposal

Dispose of the product in compliance with

all applicable directives, standards and

safety regulations.

Electronic components must not be

disposed of together with the normal

household waste.

1. Disconnect the product from

mains.

2. Dismount the product (see

chapter "Mounting the control

unit", reverse sequence of

steps).

11. Warranty

See our terms and conditions at www.afriso.com or

your purchase contract for information on warranty.

12. EU Declaration of Conformity