INFICON Sensistor ISH2000 Hydrogen Leak Detector - Manual (Page 74)

Sensistor ISH2000 Technical Reference Manual (TRM) EN- 74
D 200
D 200 General troubleshooting guide
Symptoms description
Fault symptoms Fault Measures
Error messages: “Check
Probe and Cable”. Red
LED flashes quickly. Broken connection
between probe and
instrument Check that the probe
cable is properly con-
nected to the probe and
the instrument. If the fault
persists, replace the
probe/cable.
Software problems Install the software
Broken Main PCB Replace Main PCB
Broken Probe PCB Replace Probe PCB
Error messages: “Error” Error in Active Probe See Probe Manual.
Error messages: “Check
Sensor, Voltage Error” Sensor voltage from the
gas sensor out of the
range 300 - 3500 mV Check that the sensor is
properly connected to the
probe. If the fault persists,
replace the sensor.
Error messages: “Check
Sensor, Temp.” Diode voltage from the
gas sensor out of the
range 544 - 612 mV Check that the sensor is
properly connected to the
probe. If the fault persists,
replace the sensor.
No sound in Detection
Mode and
Analysis Mode. Sound set low Press the + button repeat-
edly.
Broken speaker Replace the speaker
No picture on display, no
sound Fuse broken Check the fuse.
Broken Main Cable Replace the Main Cable
Discharged battery
Broken Main PCB Replace the Main PCB
No picture but only sound
when exposed to gas. Display setting may be
wrong Watch the display from
the side at a low angle
and aim a lamp at the
screen. Try to see the text
so that you can enter the
Display Settings menu and
adjust contrast and
brightness.
Display or Inverter Cable
loose Reconnect loose wiring
Display Lamp broken Replace the display
Loss of spots or black lines
on screen Internal contact to LCD
broken Replace the display
Bad sound out of the
speaker Broken speaker Replace the speaker