RKI Instruments SD-705EC - Manual (Page 32)

PT2E-1140
③ Span adjustment impossible
Span adjustment impossible
Yes
Calibration gas prepared
correctly?
No
Use the correctly prepared gas for
re-calibration.
Yes
Yes
No
Carry out calibration according to
“4-3 Gas sensitivity calibration
method”. Calibration gas supplied
correctly to the sensor?
No
Yes
Sensor deterioration.
Since the sensor must be replaced, contact
our local agent or RIKEN KEIKI.
There may be an
abnormality in the electric
circuit.
Turn OFF the power
supply to this unit and
contact our local agent or
RIKEN KEIKI.
The CD indication changes UP or DOWN
when the control key is brought nearer to
the UP▲ or DOWN▼ switch?
31