◆
If the unit begins to overheat, smoke, or emit an abnormal smell , immediately turn off the power and unplug the
unit from the power supply.
◆
DO NOT measure any sample that can damage the prism or the sample inlet unit , sample temperature should
be kept between 5
℃
and 100
℃
when the power is turned on .
◆
Do not put the instrument in a damp place, Maximum average relative humidity: 95% RH (25
℃
);
◆
Atmospheric pressure: 80kPa ~ 106kPa;
◆
Places where there is no corrosion or destruction of insulating gas, steam or dust;
◆
Use the instrument at altitudes below 2000 meters (altitude).
◆
Use the instrument indoor.
◆
Do not change the ambient temperature of the instrument suddenly
◆
Do not use instrument in areas with large amount dust and strong vibrations
◆
Do not put the instrument in low temperature place
◆
Do not put heavy objects on the instrument
◆
Do not install the instrument In direct sunlight or near the heating source.
If measurement of concentration transmitter is abnormal, please check input power supply first. If power supply is
ok, check if the measurement window of transmitter has been covered by contamination or not, and make sure
that measurement window can contact solution well at the mean time. If it is problem of transmitter itself, please
return it to the factory for maintenance.
◆
Protected from direct rain and snow, the packaged transmitter can be applied to various modes of
transportation, such as water, land and air transportation.
◆
The packaged transmitter can be stored for more than 12 months with temperature ranging from -40
℃
~60
℃
,
and relative humidity less than 90%
◆
Live plug-in and pull-out should be strictly prohibited under live working condition, otherwise, it will damage the
concentration and infrared transmitter easily.
ZHYQ Sensor&Control Page 14 of 15
Environmental conditions:
Breakdowns And Trouble Shooting :
Caution :
In-line Refractometer
Model : GND15
（
high temperature Application
）
