SensAlarm
Flex
–
Universal Gas Detection System
Sensidyne Document No. 360-0257-01 (Rev A)
P a g e
37 | 82
4.3. Span Calibration
Important information concerning sensor function is stored in the sensor memory each time it is calibrated
and during normal operation. Sensor data includes zero and span calibration parameters, as well as the
temperature compensation characteristics for the sensor. This gives the SensAlert Flex sensors a special
capability to be calibrated in a bench or shop location using one Gas Monitor, and then installing it in the
field Gas Monitor without modification or recalibration.
NOTE: The Gas Monitor should be calibrated if the sensor assembly has been replaced with an
uncalibrated sensor or the Gas Monitor has been exposed to gas concentrations at alarm
levels.
4.3.1. Sensor Adjustment
In the Calibration Mode submenu is Sensor Adjustment. It permits a K-Factor to be applied for
combustible gas sensors. A K-Factor is used for combustible sensors when the target gas is different
from the calibration gas (Methane or Propane). Refer to the sensor datasheet to select a K-Factor before
calibrating any Catalytic Bead or Infrared Combustible Sensors for use with a combustible gas other than
Methane or Propane.
4.3.1.1.
To enter a K-Factor, from the Calibration Mode go to the Sensor Adjustment
submenu and select ENTER. Common combustible gases are listed, which may be
selected rather that the K-Factor value. If the combustible gas is not listed, select
Custom K-Factor to enter the value from the specific sensor datasheet.
NOTE: There are no adjustments for Oxygen or Toxic sensors.
Summary of Contents for SENSALARM FLEX
Page 1: ...Document No 360 0257 01 Rev A ...
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