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RMWH-SVX001C-EN
Calibration
WARNING
Risk of Asphyxiation!
Failure to follow instructions below could cause
inaccurate readings and improper gas monitoring
which could result in death or serious injury.
•
Make sure the device has been receiving power for at
least 2 hours before performing a calibration.
•
Make sure to remove the cap from the exhaust port
before operating the device.
•
Do NOT do calibration with a constant-flow
calibration gas regulator. Use only a demand-flow
type regulator.
•
If the device does not pass calibration, remove it from
service until the issue resulting in failed calibration is
corrected and a successful calibration is achieved.
Note:
During the calibration process, the device is not
monitoring for gas.
Calibration is the process of applying a known quantity of
gas to the device so it can adjust the precision and
accuracy of the measurements made during routine
operating modes. This process ensures that gas
measurements are as accurate as possible.
Although the TruSense™ RMWH Refrigerant Monitor
sensor is factory calibrated, it is recommended that
calibration be performed at initial startup and at regular
intervals to ensure that the sensor is fully functional and
improve the accuracy of the device.
There are two types of calibration: zero gas calibration and
span gas calibration.
Zero gas calibration resets the baseline level reading to
zero. Use the zero-gas scrubber with ambient air for zero
calibration.
Span gas calibration applies a known concentration of
target gas so the accuracy and precision of the detector
can be adjusted to the known value. The known
concentration of gas is called a “span value” because it
represents the span, or reach, of the calibration curve from
zero to that value (refer to the following figure).
Figure 12.
Calibration curve
The device sensor is factory calibrated for many of the
most commonly used refrigerant gases. The sensor also
has an extended pre-programmed library of additional
refrigerant gases that can be used to set up the device to
detect other targeted refrigerant gases.
Summary of Contents for TruSense RMWH
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