GS 220
19
english
6. Indications
1.
If silicone vapors absorb onto sensor‘s surface, the sensor will be coated. So,
avoiding exposure where silicone adhesives, hair grooming materials, silicone
rubber/putty may be present.
2.
High-density exposure to corrosive materials such as H
2
S, SO
x
, Cl
2
, HCl, etc.
may cause corrosion or breakage of the lead wires or heater material.
3.
Sensor drift may occur when the sensor is contaminated by alkaline metals,
especially salt water spray.
4.
Sensor drift may occur due to soak or splash the sensor with water.
5.
If water freezes on the sensing surface, the sensor would crack and alter cha-
racteristics.
6.
This meter requires to operate under around 21% ambient oxygen environment
in order to function properly. This meter cannot work well in zero or low oxygen
atmosphere.
7.
Light condensation under indoor usage should not be a problem for sensor.
However, if water condenses on the sensor‘s surface for a while, the sensor
characteristics may still drift.
8.
Sensor performance may be also affected if exposed to a high density gas for a
long time, regardless of the powering condition.
9.
When meter is off for a long time, the sensor may show a drift in resistance ac-
cording to the storage environment. So, the meter should be stored in a sealed
bag with clean air.
10. While the unpowered time becomes longer, a longer warm-up period is required
to stabilize the sensor before usage. Turn on the meter for times to make the
warm up time is long enough.
11. Regardless of powering condition, if the sensor is exposed in extreme condi-
tions such as very high humidity, extreme temperature or high contamination
levels for a long period of time, sensor performance will be adversely affected.
7. Accessories
•
Probe GS 220
Art. no. 6682
•
Earphone with volume control
Art. no. 55145
6. Indications
Содержание GS 220
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