AFRISO DMU 04 Vertaling van de originele handleiding - Pagina 2
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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 +
1
3
1
Supply −
4
2
2
ground
Shield
5
4
pin
Electrical
Bayonet MIL-C-26482 (10-6)
connections
Supply +
A
Supply −
B
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 +
p
A
U
B
I
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
-
-
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
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