INFICON Sensistor ISH2000P Hydrogen Leak Detector, Panel Model - Manual (Page 39)

Hydrogen leak detector Sensistor ISH2000 - Operating Instructions
OP-Sensistor ISH2000-EN-201203 37
EN
The active test cycle defined by the APC driver starts. “M” is returned if the selected
driver supports active test. “F” (failed) is returned otherwise.
N = Print Request
Returns current analysis value.
Q = Set APC in stand by, (stop a measurement)
Returns a “Q”.
R = Activates probe 0 (built in P50 driver)
Returns an “R”.
S = Activates probe 1 (Installed probe driver)
Returns an “S”.
X = Shift State to "Analysis Mode"
Returns nothing.
Z = Shift State to "Detection Mode"
Returns nothing.
Y = Shift State to “Combined Mode”
Return nothing.
Supported parameters
Table 8-12. The following parameters can be downloaded to Sensistor ISH2000 in
Analysis and Detection mode .
* entered as integer in 10’s of seconds, 1= 0.1s, 100 = 10s, 60000= 6000s
Transfer of parameters
Send parameters one by one; first send the specific header (for example “A”), then
wait until the RS232 transmitter unit has sent the data (approximately 20 ms), and
then send the data (for example “1.00E+01”). Data string must be ended with a
carriage return character, chr13 (dec).
Example: “CPPM” or “C PPM”, Carriage Return (chr 13). This sets Reject Level Rate
Unit to “PPM”.
Parameter Header Data
Reject Level A n.nnE+nn
Correlation Value B n.nnE+nn
Analysis Unit C Text string (max 12 characters)
Analysis Unit CUx x=1 to 8, 1=PPM, 2=CC/S up to 8
Timer A D nnn*
Timer B E nnn*
Timer C F nnn*
Timer D G nnn*
Purge Level H n.nnE+nn
Reference Value I n.nnE+nn
Reference Unit J Text string (max 12 characters)
Reference Unit (Program settings) JUx x=1 to 8, 1=PPM, 2=CC/S