3632 Central Ave. St. Petersburg, FL 33711 Phone: 727-328-2818 / 800-RING-IMR
www.imrusa.com Fax: 727-328-2826
THE PRIDE OF THE COMPANY –MADE IN THE USA Page 10 of 15
5. CALIBRATION AND ALARMS
This section covers recalibrating the detector
and adjusting alarm levels.
5.1. CALIBRATION AND ALARMING
LEVEL:
When the device is powered off press and hold
and for 5 seconds and the detector will
begin a self-test. If the self-test passes the
enter password prompt will be displayed:
Entering the correct password will result in the
detector entering into zero calibration mode.
Note: A misconfiguration in this section can
endanger the safety of the operator and
equipment. Take care during this process Ten
seconds after entering the password if no
buttons are pressed or if the password is
incorrect the detector will power off.
5.2. ZERO CALIBRATION
The currently detected concentration will be
shown:
If is pressed or no input is made within 1
minute. The detector will use the current
concentration as the zero point and then enter
into the calibration span set up. Press to
skip calibration set up and enter into alarm
level set up. Continue at section 5.5 and 5.6.
Warning:
This operation should be carried out in clean
air. Otherwise the accuracy of the detector will
be affected due to gas concentrations in the
air. If the detector displays an “E” this
indicates that air is not clean or that the sensor
is damaged. Move to another location and test
again. If the problem persists replace the
sensor.
5.3. CALIBRATION SPAN ADJUSTMENT
Set the calibration gas concentration. The
currently selected number will be flashing.
Press or to modify this value:
If is pressed or no input is made within 1
minute. The detector will use the current
concentration as the calibration gas
concentration. It will then enter into
calibration span set up.
5.4. CALIBRATION SPAN SET UP
The detector will now display the currently
detected gas concentration:
Attach the calibration cover. Open the
calibration gas tank and adjust the flow to
120mL/min. If the detector senses the
calibration gas within 30 seconds it will begin
to automatically analyze the applied gas. The
detector will automatically process and save
the new span setting. The detector will then
advance to L-alarm set up.
Note: Avoid pressing any of the buttons as
this can cause the detector to save incorrect
information.
If the detector does not reach half of the
calibration gas concentration within 30
seconds or the detected calibration gas
concentration goes into overflow the “E” error
icon will illuminate. This indicates that the
calibration gas concentration is too high for
the installed sensor or that the sensor is
