Hydrogen leak detector Sensistor ISH2000 HySpeed
-
Operating Instructions
16
OP-Sensistor ISH2000 HySpeed-EN-201203
EN
Hint:
It is good practice to detect a leak, locate it, and immediately remove the probe
to avoid saturation. The probe is not damaged by the exposure but it will recover more
slowly. After excessive exposure it will be less sensitive for a short period of time.
6.3 To Quantify Leaks
The
Analysis Mode
(or
use the analysis figures in
Combined Mode
) is used for
measuring the size of a leak (or the concentration of a gas sample). To be able to do
this measurement and obtain correct values, the instrument must first be calibrated
using the calibration function.
In the
Analysis Mode
the detector determines the gas concentration from the
change, as the probe goes from being exposed to background to being exposed to a
certain gas concentration. The detector does not continuously monitor the gas
concentration but takes just one reading instead. Another suitable alternative name
for this mode could be Sampling Mode. It is important to keep this in mind when using
the detector in this mode.
In
Analysis Mode
the probe should be moved directly from a background situation to
the test point. The size of the leak in PPM, or any other selected units, is shown on the
display. The probe can and should be removed from the measuring point as the
measured value steadies and remains on the display. The period during which the
measured value is displayed can be adjusted in the
Analysis Mode Settings
menu.
The leak detector operates in the range 20 - 50000 ppm (0,002-5%) H2.
CAUTION!
• Do not open detector! Service of this equipment may only be carried out by ser-
vice organisations authorised therefore by INFICON, Sweden.
• If the detector gets outer damage it must be controlled and repaired by service
organisation authorised by INFICON.
• Do not expose the probe to a hydrogen concentration higher than 0.1 % when
the instrument is not put into operation, this might damage or destroy the probe
sensor.
Note:
• When the instrument is put into operation the sensor withstands
temporary exposure to hydrogen concentration up to 100%. Avoid long exposures
to high concentrations.
