Oxygen Monitor SGM7 8 Operation
HB_SGM7_eng.docx
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8.3.3 Calibration status
Chart 6:
Messages calibration status
OK (1.5)
last calibration OK (calibration value)
WAIT ! 5
calibration running
BREAK
cancelled by pressing key
TIME OUT
stability not reached within 60sec
OUT OF RANGE
range exceeded
FAILED
instrumental error
START
start calibration
8.4 Fault clearance
Chart 7:
Disturbances, causes and clearance
Disturbance
Cause
Clearance
Display off
SGM7 off
Switch on SGM7
No current supply
Check current supply and cord
set
Equipment fuse tripped
Change equipment fuse
Warning:
FLOW <<< (Flow too low)
Gas supply blocked, too long for
chosen cross section or leaky
Check gas supply
Remove blockages
Establish tightness
Pump defective
Replacement by manufacturer
Relatively high measuring
value although a low value
for the oxygen
concentration is expected
Gas flow too low
Increase flow rate
Micro leaks in gas supply
Check fittings
Measurement is dependent
on the flow rate (the
smaller the flow, the higher
the value or vice versa)
Leaks in the measuring gas
supply
Check gas supply and fittings
Measuring value is
significantly lower than
expected
Reacting components (at high
temperatures with oxygen) in the
measuring gas (e.g.
hydrocarbons)
Use carbon filter or check
existing filters for saturation
Warning: “WARM-UP”
Measuring cell has not reached
operating temperature yet
Wait for 5 minutes
Check temperature value on
display
Contact service if necessary
Fuse for sensor heater tripped
Switch off
Check again after switching on
Consult service if necessary
Heater or regulator defective
Consult service
Warning: ERROR
THERMOCOP.
Thermocouple defective
Consult service
Warning: SELF TEST
FAILED (system error)
Error program or data memory
Consult service
Содержание SGM7
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Страница 37: ...Oxygen Monitor SGM7 10 Appendix HB_SGM7_eng docx 37 10 3 Installation instructions for Swagelok fittings...
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Страница 43: ...Oxygen Monitor SGM7 11 Your notes HB_SGM7_eng docx 43 11 Your own notes and remarks...