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Instruction Manual
4.4 Status Indication
Calibration
value
LED
<ST>
<HV-ST>
off
off
lit solid green
off
lit solid green
blinking
green
lit solid green
lit solid
green
blinking red
off
4.5 Sensor activation delay
An ignition delay occurs when cold cathode gauges are switched on. The delay time increases at low pressures
and is typically:
-6
-3
7.60 ×10
... 7.60 × 10
-8
-6
7.6 × 10
... 7.6 × 10
Torr
-9
-8
3.75 × 10
... 7.6 × 10
Torr
-9
< 3.75 × 10
Torr
InstruTech
ADJ
0 2
E
C
4
A
6
DIA
8
CAL
Condition
No supply voltage
Supply voltage = ok,
no high voltage in the measuring
chamber
Supply voltage = ok,
pressure in the cold cathode range,
cold cathode has not ignited
Cold cathode has ignited
EEPROM error
Torr < 1 second
< 20 seconds
< 2 minutes
< 20 minutes
Supply voltage
Error
ST
High voltage
HV-ST
cold cathode
For factory
setting only
CCM502 Hornet
Page 14
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