Servomex SERVOTOUGH Oxy, Руководство оператора

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01910001B_8 © Servomex Group Limited. 2020
13
Note:
For optimum calibration results, the calibration gas flow rate/pressure should b
e the
same as the flow rate/pressure of the gases to be sampled.
O
2
transducer calibra�on gases
• High calibra�on setpoint
0
.5 to 20.95% O
2
• Low calibra�on setpoint
0
(99.5% zero grade nitrogen recommended)
•
Minimum
Difference 0.5%
•
Low
calibra�on tolerance level *
• Calibra�on gas < 5% O
2
± 0.5% O2
• Calibra�on gas ≥ 5% O
2
± 10% Calibra�on target value
• High calibra�on tolerance level *
•
Calibra�on gas < 5% O
2
± 0.5% O
2
• Calibra�on gas ≥ 5% O
2
± 10% Calibra�on target value
* If the measurement is outside the specified range, a fault message is stored to indicate
that
there may be a problem (for example, the wrong calibra�on gas has been introduced, or the transducer
has dri�ed excessively). The fault can be over
-
ridden to allow the calibra�on to take place.
It is recommended that sample/calibra�on gas flow
is monitored to ensure a
representa�ve sample is being m
easured
2.7
Performance
Note:
The display indications given below are the default indications. You can configure the
analyser
to provide other display indications (see Section 5.19).
The display indica�ons given below are the default indica�ons. You can configure the analyser
to
provide other display indica�ons (see Sec�on 5.19).