MSA PrimaX - Accessories; Calibration Cap; Sensor Gard

8 Accessories
For part numbers →chapter9 Spare Parts.
8.1 Calibration Cap
Using calibration cap allows span gas calibration procedure to be accurate in windy environmental
conditions.
The calibration cap is pushed on to the front of the sensor and is sealed by an
O- ring. The surface area S < 20 cm
2
.
Figure 13 Calibration cap / Gas flow rate: 1.0 l/min ± 20%
WARNING!
The calibrating cap must be removed after completing the calibration!
The gas is supplied via either of the gas inlets by means of suitable flexible tube.
Failure to follow this warning can result in serious personal injury or death.
8.2 Sensor Gard
Figure 14 Sensor gard / Gas flow rate: 1.0 l/min ± 20%
The sensor gard should be fitted at all times except when using the flow through adapter, duct mount kit or
CalGard.
Ambient weather condition can affect the gas mixture inside of the sensor gard. Use sensor gard for
functional test only. Calibration cap is recommended for sensor calibration.
Using the sensor gard will extend the response time, depending on the air velocity. Very low
air velocity may result in reduced measure value slightly above 10%.
Gas flow rate: 1,0 l/min
53 PrimaX GB
8 Accessories