DMU für Schifffahrt_E_160409
3.3 Installation steps for DIN 3852
- Check to ensure the proper groove fitting of the o-ring
and additionally to ensure no damage to the o-ring.
- Ensure that the sealing surface of the taking part is
perfectly smooth and clean.
- Screw the device into the corresponding thread by
hand.
- Tighten it with a wrench (G1/4": approx. 5 Nm; G1/2":
approx. 10 Nm; G3/4": approx. 15 Nm; G1": approx. 20
Nm; G1 1/2": approx. 25 Nm).
3.4 Installation steps for EN 837
- Use a suitable seal, corresponding to the medium and
the pressure input (e. g. a cooper gasket).
- Ensure that the sealing surface of the taking part is
perfectly smooth and clean.
- Screw the device into the corresponding thread by
hand.
- Tighten it with a wrench (for G1/4": approx. 20 Nm; for
G1/2": approx. 50 Nm).
3.5 Installation steps for NPT
- Use a suitable seal, corresponding to the medium and
the pressure input (e. g. a PTFE-strip).
- Screw the device into the corresponding thread by
hand.
- Tighten it with a wrench (for 1/4" NPT: approx. 30 Nm;
for 1/2" NPT: approx. 70 Nm).
3.6 Installation steps for connecting flanges
- Use a suitable seal corresponding to the medium and
the pressure input. (e.g. a fiber gasket).
- Put the seal between connecting flange and counter
flange.
- Install the device with 4 resp. 8 screws (depending on
flange version) on the counter flange.
4. Electrical installation
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WARNING!
Install the device in currentless environ-
ments only!
Establish the electrical connection of the device according to
the technical data shown on the manufacturing label, the
following table and the wiring diagram.
Pin configuration:
Electrical
connection
ISO 4400
M12x1 (4-pin)
Supply
+
Supply
−
1
2
1
2
Shield
ground pin
4
Electrical
connection
field housing
cable colours
(DIN 47100)
Supply
+
Supply
−
IN +
IN -
white
brown
Shield
yellow / green
Wiring diagram:
!
For devices with cable gland as well as cable socket,
you have to make sure that the external diameter of the
used cable is within the allowed clamping range.
Moreover you have to ensure that it lies in the cable
gland firmly and cleftlessly!
!
For the installation of a device with cable outlet
following bending radiuses have to be complied with:
cable without ventilation tube:
static installation :
5-fold cable diameter
dynamic application: 10-fold cable diameter
cable with ventilation tube:
static installation :
10-fold cable diameter
dynamic application: 20-fold cable diameter
!
Please note for devices with ISO 4400 plug and cable
socket, that the socket has to be mounted properly to
ensure the ingress protection mentioned in the data
sheet. Please check if the delivered seal is placed
between plug and cable socket. After connecting the
cable fasten the cable socket on the device by using the
screw.
!
On devices with field housings, the terminal clamps are
situated under the metal cap. To install the device
electrically, the cap must be screwed off. Before the
cover is screwed on again, the O-ring and the sealing
surface on the housing have to be checked for
damages and if necessary to be changed! Afterwards
screw the metal cap on by hand and make sure that the
field housing is firmly locked again.
!
Prevent the damage or removal of the PTFE filter which
is fixed over the end of the air tube on devices with
cable outlet and integrated air tube.
For the electrical connection a shielded and twisted
multicore cable has to be used.
5. Initial start-up
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WARNING! Before start-up, the user has to check for
proper installation and for any visible defects.
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WARNING! The device can be started and operated by
authorized personnel only, who have read and under-
stood the operating manual!
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WARNING! The device has to be used within the
technical specifications, only (compare the data in the
data sheet)!
6. Placing out of service
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WARNING!
When dismantling the device, it must
always be done in the depressurized and currentless
condition! Check also if the medium has to be drained
off before dismantling!
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WARNING! Depending on the medium, it may cause
danger for the user. Comply therefore with adequate
precautions for purification.
7.
Maintenance
In principle, this device is maintenance-free. If desired, the
housing of the device can be cleaned when switched of
using a damp cloth and non-aggressive cleaning solutions.
Depending on the measuring medium, however, the dia-
phragm may be polluted or coated with deposit. If the
medium is known for such tendencies, the user has to set
appropriate cleaning intervals. After placing the device out of
service correctly, the diaphragm can usually be cleaned
carefully with a non-aggressive cleaning solution and a soft
brush or sponge. If the diaphragm is calcified, it is recom-
mended to send the device to BD SENSORS for decalcifica-
tion. Please read therefore the chapter “Repair” below.
!
An incorrect cleaning can cause irreparable damages
on diaphragm. Never use spiky objects or pressured air
for cleaning the diaphragm.
8. Error handling
9. Service / Repair
9.1 Recalibration
During the life-time of a transmitter, the value of offset and
span may shift. As a consequence, a deviating signal value
in reference to the nominal pressure range starting point or
end point may be transmitted. If one of these two phenom-
ena occurs after prolonged use, a recalibration is recom-
mended to ensure furthermore high accuracy.
9.2 Return
Before every return of your device, whether for recalibration,
decalcification, modifications or repair, it is necessary to
contact us to ensure a fast handling of your request. Please
inform us by sending an email to: [email protected].
Include the number of devices sent and request a RMA.
Then clean the device and pack it shatterproof before send it
to BD SENSORS indicating the RMA.
10. Disposal
The device must be disposed according to the
European
Directives
2002/96/EG
and
2003/108/EG (on waste electrical and electronic
equipment) Waste of electrical and electronic
equipment may not be disposed by domestic
refuse!
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WARNING! Depending on the measuring medium,
deposit on the device may cause danger for the user
and the environment. Comply with adequate precau-
tions for purification and dispose of it properly.
11. Warranty conditions
The warranty conditions are subject to the legal warranty
period of 24 months from the date of delivery. In case of
improper use, modifications of or damages to the device, we
do not accept warranty claims. Damaged diaphragms will
also not be accepted. Furthermore, defects due to normal
wear are not subject to warranty services.
12. Declaration of conformity / CE
The delivered device fulfils all legal requirements.
The applied directives, harmonised standards and docu-
ments are listed in the EC declaration of conformity, which is
available online at: http://www.bdsensors.com/products/
download/certificates.
Additionally, the operational safety is confirmed by the CE
sign on the manufacturing label.
Supply –
V
S
A
p
I
Malfunction
Possible cause
Error detection / corrective
no output
signal
wrong connected
inspect the connection
line break
inspect all line connections necessary to supply the device (including
the connector plugs)
defective amperemeter (signal input)
inspect the amperemeter (fine-wire fuse) or the analogue input of the
PLC
analogue
output signal
too low
load resistance too high
verify the value of the load resistance
supply voltage too low
verify the output voltage of the power supply
defective energy supply
inspect the power supply and the applied supply voltage at the device
small shift of
output signal
diaphragm is highly contaminated
careful cleaning with non-aggressive cleaning solution and a soft
brush or sponge; incorrect cleaning can cause irreparable damages
on diaphragm or seals
diaphragm is calcified or coated with
deposit
if possible, it is recommended to send the device to BD SENSORS for
decalcification or cleaning
large shift of
output signal
diaphragm is damaged (caused by
overpressure or manually)
check the diaphragm; if it is damaged, please send the device to
BD SENSORS for repair
wrong or no
output signal
manually, thermical or chemically
damaged cable
check the cable; a possible consequence of a damaged cable is pitting
corrosion on the stainless steel housing; if you determine this please
return the device to BD SENSORS for repair
If you detect an error, please try to eliminate it by using this table or send the device to our service address for repair.
!
Improper action and opening can damage the device. Therefore repairs on the device may only be executed by the manufac-
turer!
