22
CTX 300
User manual
Figure 15: sensor calibration assembly.
Zero adjustment should be performed in a gas and vapor free area. If this is not
possible, synthetic bottled air can be injected at a rate of 60 l/h.
Use a bottle of test gas to adjust sensor sensitivity (concentration close to the alarm
threshold or corresponding to 30% of the measurement range at a minimum). The
recommended rate is 60 l/h.
Note: when dealing with dangerous gases, you MUST consult a specialized
Oldham
Simtronics
technician or use another sensor pack recently pre-calibrated at a factory.
The detector should be calibrated using the intended flow-rate. The actual
concentration of gas may be underestimated if the detector was calibrated
with too high of a flow rate.
CTX 300 calibration
1
st
case: CTX 300 with display (excluding O
2
)
■
The sensor is operating: the green
light (ref. 1) is lit and the display
screen shows the measurement level.
Figure 16
■
Verify that the sensor is located in a
clean-air environment. If not, inject
synthetic air at a flow rate of 30 l/h.
Summary of Contents for ctx 300
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Page 38: ...38 CTX 300 User manual www acornfiresecurity com www acornfiresecurity com...
Page 39: ...7 Certification 39 www acornfiresecurity com www acornfiresecurity com...
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Page 44: ...44 CTX 300 User manual www acornfiresecurity com www acornfiresecurity com...
Page 47: ...9 Annex 47 Figure 28 CTX 300 overview www acornfiresecurity com www acornfiresecurity com...
