INFICON Sensistor ISH2000 HySpeed Hydrogen Leak Detector - Manual (Page 26)

Hydrogen leak detector Sensistor ISH2000 HySpeed - Operating Instructions
26 OP-Sensistor ISH2000 HySpeed-EN-201203
EN
Note: The frequency of the acoustic signal in Analysis Mode is controlled by Reject
Level . A signal equal to the Reject Level will always give the same audio
frequency despite the actual signal strength.
Correlation Value
Correlation Value is used when it is necessary to correct the relation between the
detector signal and the displayed number. This might be necessary when you want
to display leak rate unit other than the calibrate leak rate unit. Examples: If you
have a reference value in cc/s and want to show mm3/s at the screen, use 1000 as
Correlation Value.
Analysis Unit
The Analysis Unit is a text string with a maximum of 12 characters. It is not involved in
any calculations.
The following letters can be used; Upper and lower case English letters, the numbers
0 to 9, Е, Д, Ц, е, д, ц, %, /, and -. Space (““) is not supported. The string will be
shortened after the first space found.
Min Presentation Time
Signal values in Analysis Mode will never be presented shorter than this time. Values
are, however, always presented until the signal has recovered. The default value is 1
second, but values from 0.1-12.0 seconds can be used.
Display Threshold
Hides all measurements under a set % of Reject Level.
Audio Threshold
Instrument is silent under a set % of Reject Level.
Reject Indications
There are three choices of Reject Level indications except the LEDs indication:
•
Flashing screen
• Chopped audio signal
• Combination of indication 1 and 2.
Show Reject Level
Shows the Reject Level value on the display.
Audio Ready Pulse
This sets the standby sound to a silent or or pulsating tone.
8.7 APC Settings
APC is an abbreviation for Active Probe Control. The APC function is for the control
of an active probe that has a built-in alarm, valves or pumps via Probe Control Port.