Technical User Guide
DOL 51
3
140299 DOL 53 – test gas adapter
Used for gas test of DOL 51 and DOL 53.
3 Installation
Mount the sensor in the mounting lug at the top of the sensor, filter facing down. The offset from vertical must
be max. 15
o
(see figure 1). DOL 51 must be mounted so that it is accessible in connection with maintenance
and must not be subjected to splash water.
Ensure free air passage around the sensor filter. Do not expose it to direct sunlight as this will affect the mea-
surements.
DOL 51 must warm up for half an hour before being ready to measure (see the section of LED indication).
The sensor must be placed in middle of the livestock house or in the center between walls/filters when used in
an air cleaner. Make sure there is an adequate distance to walls and air inlets.
DOL 51 must not be suspended from the electric cable.
Figure 1: DOL 51 must be mounted vertically with the sensor pointing down; +/- 15° at a location with low vibra-
tion and, as far as possible, stable temperatures.
