Download Print this page

Barksdale BLP1 Operating Manual page 2

Advertisement

Removal with a tool (recommended)
Fig. 2 removal of protection cap
- Hold the probe in a way that the protection cap points
upwards.
- Slide a small tool such as a screwdriver (8) straight
through two opposite drill holes in the protective cap (2).
- Lever it off by moving up the handle of the screwdriver.
Make sure that the sensor (7) under the protection cap
will not be damaged!
4. Electrical Installation
WARNING! Install the device only when depressurized
and currentless!
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
cable colours (DIN 47100)
Supply +
Supply −
optionally (only Pt 100):
Supply T+
Supply T–
Supply T–
Shield
yellow / green
Wiring diagram:
Supply V
+
S
p
Supply V
S
Supply T+
Supply T−
I
Supply T−
!
A minimum static bending radius has to be complied
with. For static installation use the 10-fold cable diame-
ter, for dynamic applications use the 20-fold diameter.
!
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; if a cable extension is
necessary, also a shielded cable has to be used.
If a transition is desired from a probe cable with gauge
tube to a cable without gauge tube, then we recom-
mend our terminal box KL 1 or KL 2.
5. Initial start-up
WARNING! Before start-up, the user has to check for
proper installation and for any visible defects.
WARNING! The device can be started and operated by
authorized personnel only, who have read and under-
stood the operating manual!
WARNING! The device has to be used within the
technical specifications, only (compare the data in the
data sheet)!
6. Placing out of service
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!
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 Barksdale GmbH for decalcifi-
cation. Please read therefore the chapter "Service/Repair"
below.
!
An incorrect cleaning can cause irreparable damages
on diaphragm. Never use spiky objects or pressured air
for cleaning the diaphragm.
2
8. Service / Repair
8.1 Recalibration
During the life-time of a probe, 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 phenomena
occurs after prolonged use, a recalibration is recommended
to ensure furthermore high accuracy.
8.2 Return
By returning your device, whether for recalibration, decalcifi-
cation, modifications or repair, it is necessary to send us the
product together with a Notice of Return which you can
download under:
9. Disposal
The device must be disposed according to the
European
2003/108/EG (on waste electrical and electronic
equipment) Waste of electrical and electronic
equipment may not be disposed by domestic
refuse!
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.
white
brown
10. Warranty conditions
yellow
The warranty conditions are subject to the legal warranty
grey
period of 24 months from the date of delivery. In case of
pink
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.
11. Declaration of conformity / CE
V
S
The delivered device fulfils all legal requirements. The
applied directives, harmonised standards and documents are
listed in the EC declaration of conformity, which is available
online at: http://www.barksdale.de/en/download/certificates.
only
Additionally, the operational safety is confirmed by the CE
Pt 100
sign on the manufacturing label.
12. Error handling
Malfunction
no output
signal
analogue
output signal
too low
small shift of
output signal
large shift of
output signal
wrong or no
output signal
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
manufacturer!
http://www.barksdale.de/en/download/
Directives
2002/96/EG
and
Possible cause
wrong connected
line break
defective amperemeter (signal
input)
load resistance too high
supply voltage too low
defective energy supply
diaphragm is highly contaminated
diaphragm is calcified or coated
with deposit
diaphragm is damaged (caused
by overpressure or manually)
manually, thermical or chemically
damaged cable
Error detection / corrective
inspect the connection
inspect all line connections necessary to supply the device (including
the connector plugs)
inspect the amperemeter (fine-wire fuse) or the analogue input of the
PLC
verify the value of the load resistance
verify the output voltage of the power supply
inspect the power supply and the applied supply voltage at the device
careful cleaning with non-aggressive cleaning solution and a soft brush
or sponge; incorrect cleaning can cause irreparable damages on
diaphragm or seals
if possible, it is recommended to send the device to Barksdale GmbH
for decalcification or cleaning
check the diaphragm; if it is damaged, please send the device to
Barksdale GmbH for repair
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 Barksdale GmbH for repair

Advertisement

loading

This manual is also suitable for:

923-1760