Labom BA Series User manual

Pressure gauges
Type series BAxxxx, BBxxxx, BDxxxx, BHxxxx
LABOM Mess- und Regeltechnik GmbH Im Gewerbepark 13 27798 Hude Germany
BA_008_2019-11_10.01
Hotline: [phone] Fax: [phone] e-mail: [e-mail] www.labom.com
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Operating Instructions
1General Information.......................................................................................................2
1.1 General Safety Notes..............................................................................................2
1.2 Intended Use...........................................................................................................2
1.3 Conformity with EU Regulations..............................................................................2
1.4 ATEX Approval........................................................................................................2
2Transportation and Storage..........................................................................................2
3Installation and Commissioning ..................................................................................2
3.1 Mechanical Installation............................................................................................3
4Operation........................................................................................................................4
4.1 Zero-point correction...............................................................................................4
4.2 Devices with Diaphragm Seal .................................................................................4
4.3 Maintenance / Service.............................................................................................4
5Disassembly...................................................................................................................5

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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.
1.3 Conformity with EU Regulations
The CE-marking on the device certifies its compliance with the applicable EU Directives for
placing products on the market within the European Union.
You find the complete EU Declaration of Conformity (document no. KE_053) at
www.labom.com.
1.4 ATEX Approval
If you purchased a device with ATEX approval, please refer to the accompanying docu-
ment XA_005 for ATEX-relevant information.
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: -40…70 °C
BH5xxx, BH8xxx and S3 models with case filling
Permissible storage temperature: -20…60 °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.

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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.
Install safety pressure gauges in the line with DIN EN 837-1 S1 and S3 so that the exhaust
equipment can freely discharge to the rear in the event of a fault or malfunction. Provide
for corresponding openings if mounting the unit on the wall.
Use the spanner flats to screw in the device.
Measuring devices where oil or grease residues in the measuring element are not permit-
ted are marked on the scale with the oil can icon.
Measuring devices for use with oxygen are marked on the scale with the oil can icon
and the word “oxygen” directly below this.
Seal cylindrical screw threads by fitting a sealing washer to the front face of the gasket.
Seal taper screw threads by screwing tight; typically a gasket material is applied to the
male thread. Make sure that the set of gasket you use are correct and in perfect condition
when mounting the instrument; non-matching gasket can cause faults.
Vent the pressure gauge after installation using the vent
valve (Figure 1).
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 2).
Figure 1: Vent valve
Figure 2: Move valve
No activity is necessary prior to commis-
sioning with ventilation systems positioned
in the front glass, like for type series
BH8xxx (Figure 3). Avoid contaminating the
vent element.
Figure 3: Vent element in the front glass

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4 Operation
During operation, take care that the device remains within its intended pressure and tem-
perature ranges. No other monitoring is necessary.
The permissible ambient and media temperature depends on the type of device and its
design. This information can be found in the relevant data sheet.
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 Devices with Diaphragm Seal
Remove the protective cap or protective wrapping from the diaphragm only just before in-
stallation to prevent contamination or damage.
The diaphragm must not be touched. Do not place the device on its diaphragm. Even
small scratches or deformations may negatively influence the zero point or other charac-
teristics of the device.
Pressure transmitter and diaphragm seal are a closed system that must not be separated.
You can find further information about diaphragm seals in the document TA_031 on
www.labom.com.
4.3 Maintenance / Service
When properly installed in accordance with applicable specifications, this device is
maintenance-free. However, we recommend an annual recalibration of the device.
In the event of any damage or defect the customer cannot replace or repair any compo-
nents or assemblies.

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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.
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.