Labom BX1007 Series User manual
High temperature pressure gauges
Type series BX1007
LABOM Mess- und Regeltechnik GmbH Im Gewerbepark 13 27798 Hude Germany
BA_036_2019-11_10.01
Hotline: +49 4408 804-444 Fax: +49 4408 804-100 e-mail: sales@labom.com www.labom.com
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Operating Instructions
1General Information.......................................................................................................2
1.1 General Safety Notes..............................................................................................2
1.2 Intended Use...........................................................................................................2
2Transportation and Storage..........................................................................................2
3Installation and Commissioning ..................................................................................2
3.1 Mechanical Installation............................................................................................2
4Operation........................................................................................................................3
4.1 Zero-point correction...............................................................................................3
4.2 Maintenance / Service.............................................................................................3
5Disassembly...................................................................................................................4
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1 General Information
This document contains necessary information for the proper installation and use of this
device. In addition to this instruction, be sure to observe all statutory requirements, appli-
cable standards, the additional technical specifications on the accompanying data sheet
(see www.labom.com) as well as the specifications indicated on the type plate.
1.1 General Safety Notes
The installation, set up, service or disassembly of this device must only be done by
trained, qualified personnel using suitable equipment and authorized to do so.
Warning
Media can escape if unsuitable devices are used or if the installation is not
correct.
Danger of severe injury or damage
Ensure that the device is suitable for the process and undamaged.
1.2 Intended Use
The device is intended to measure pressure of gases, vapors and liquids as specified in
the data sheet.
2 Transportation and Storage
Store and transport the device only under clean and dry conditions preferably in the origi-
nal packaging. Avoid exposure to shocks and excessive vibrations.
Permissible storage temperature: 0…70 °C
3 Installation and Commissioning
Ensure that the device is suitable for the intended application with respect to pressure
range, overpressure limit, media compatibility, temperature range and process connection.
3.1 Mechanical Installation
Use gaskets, if required, that are suitable for the process connection and resistant to the
media.
Before starting operation, check the process connection carefully for leaks under pressure.
Use new gaskets for each installation. We recommend the use of aluminium gaskets
(A 27 x 32 as per DIN 7603), which you can order directly from us as an accessory.
Fit the pressure transmitter using four flange screws, as shown on the drilling diagram, and
tighten them gradually crosswise. Max. tightening torque: 60 Nm (slightly oiled).
During installation of the device, attention has to be paid to the diaphragms not being
damaged by the medium being measured. This is particularly important in the case of co-
agulating media that can have deforming influence on the diaphragms when they get cold.
Do not insulate the temperature coupler (tubular shank under the transmitter), as this
would reduce its decoupling effect.
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Figure 1: Drilling diagram
Vent the pressure gauge after installation using the vent
valve (Figure 2).
The devices are supplied with a closed vent valve
(CLOSED position). Moving the red lever to the OPEN
position equalises the pressure level inside and outside
the case (Figure 3).
Figure 2: Vent valve
Figure 3: Move valve
4 Operation
During operation, take care that the device remains within its intended pressure and tem-
perature ranges. No other monitoring is necessary.
Permissible media temperature: 10…350 °C
Permissible ambient temperature: 10…70 °C
4.1 Zero-point correction
Small measuring errors or deviations
caused by difference in level between pres-
sure gauge and point of measurement can
be corrected on measuring devices with
micro control position pointers. To do so
turn the adjusting screw on the pointer hub
(see figure 4).
Similarly, a displacement of the zero point
caused by use and long service life can be
corrected if necessary.
You can find further information about zero-
adjustment of pressure gauge with micro
adjustment pointer in the document TA_029
on www.labom.com.
Figure 4: Zero-point correction
4.2 Maintenance / Service
When properly installed in accordance with applicable specifications, this device is
maintenance-free. However, we recommend an annual recalibration of the device.
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5 Disassembly
When measuring hot media, make sure that the device has cooled down prior to any dis-
mounting or wear appropriate protective clothing to avoid burns.
Switch off the power supply to the device before disconnecting the electrical connections.
Once this is done, the device may be mechanically removed.
Remove the four flange screws.
The pressure transmitter system may be pulled out only while the process medium is liquid
(above melting point).
Use cylinder head screws (M12 x 55 as per DIN 912, A2-70) quality) for the two threaded
holes, as shown on the drilling diagram, to push the device out of the process and ensure
ease of removal. You can order these screws as an accessory.
Warning
Opening pressurized lines might cause severe injuries.
Danger of severe injuries or damage
Relieve the process pressure before attempting to remove the device.
Shut off the pressure supply for all feed lines to the device and relieve the
pressure in them.
Warning
Hazardous deposits and residues might remain on opened process connec-
tions and removed devices.
Danger of injury
After the device has been removed, seal off the measuring point and
mark the open process connection accordingly. Consider a possible dan-
ger due to residues when handling the removed device.
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