User Manual - PolyXeta
®
2 Detector with HL Sensor
for Refrigerant Gases - May_2020
Page
8
PolyXeta
is a registered trademark of MSR
Made in Germany
GAPX2_Freon_E_2020_05_18
Phone: +49 8531 9004-0 Fax: +49 8531 9004-54
Specification subject to change without notice
MSR-Electronic GmbH, Buergermeister-Schoenbauer-Str. 13, D 94060 Pocking
www.msr-electronic.de
3
Mounting Instructions
Check for completeness and accuracy using the delivery documents and the identification label
on the device.
3.1
Site of Installation
When choosing the mounting location, you have to consider the ambient conditions in order to get
representative measurement results. Please pay special attention to the following factors:
•
External heat sources are not allowed on the installation site.
•
Choose mounting location of the sensor according to the local regulations.
•
Consider ventilation conditions! Do not mount the transmitter next to air passages or suction holes.
•
The sample gas must pass the sensor even under adverse flow conditions. A flow test can be
performed for instance with smoke tubes.
•
If the flow conditions are > 6 m/s, it is advisable to use a wind shield.
•
Mount the transmitter at a location with minimum vibration and minimum variation in temperature
•
In case of very difficult environmental conditions caused by dripping, splash, rain, condenser water
or dusts in the atmosphere, which are above the IP 65 dust and water protection, additional
accessories may be necessary to enable the use of the device. Please contact the manufacturer in
such cases.
•
Provide adequate space around the sensor for maintenance and calibration work.
•
The installation height depends on the relative gas density of the monitored gas type.
Freon
group
Gas
type
Relative density
(air = 1)
Recommended
mounting height
Calibraiton interval
FR02
R23
2.4
0.3 m above floor
12 months
FR03
R1234yf
4
0.3 m above floor
12 months
FR04
R123
> Luft
0.3 m above floor
12 months
FR06
R22
3
0.3 m above floor
12 months
FR07
R134a
>1
0.5 m
above floor
12 months
FR08
R407c
2.3
0.3 m above floor
12 months
%LFL
R32
1.8
0.3 m above floor
12 months
R717 (NH
3
)
0.59
Ceiling
12 months
Table 3.1: Mounting heights
3.2
Installation Work
Assembly work must only be carried out under gas-free conditions.
The housing must neither be drilled nor be drilled through.
The installation position of the gas detector is always vertical, with the sensor head
downwards.
The mounting is done without opening the housing by using the two holes (D = 8 mm) of the fastening strap
with suitable screws. The exact dimensions are shown in the drawing "Dimensions and Mounting", fig. 3.1.
