Installation &
Calibration Guide
Temperature Electronics Ltd. Unit 2, Wren Nest Road, Glossop SK13 8HB UK
T. +44 (0) 1457 865 635 F. +44 (0) 1457 868 843 E. [email protected]
w. www.tel-uk.com
8. If the sample is accepted, lower the sash by half and
measure the face velocity using a calibrated instrument.
Using the + / - buttons enter the measured face velocity
and press Enter, the monitor will then sample the airflow
for 5 seconds.
9. If the calibration is successful the controller will return the
Main Menu, select RUN to go to normal operating mode
and check the velocity reading is accurate and stable.
10. If the airflow sample is unstable the controller will
display “Deviations too High”, follow the instructions to
repeat the sample or quit the calibration.
11. The controller will display “Increase higher airflow
sample” if the second sample value is too close to the
first value entered, close the sash a little and repeat
the higher sample. The minimum difference between
the samples that the controller will accept is 0.3m/
sec (60fpm).
12. The controller will display “Sensor diff too low” if the
controller doesn’t detect any difference in the sensor
output between the 2 airflow samples, check that the
sensor hose is connected and repeat the calibration.
13. If the calibration is stable and accurate Press and
Hold the Enter button for 5 seconds until the Main
Menu is displayed.
14. Using the + / - buttons select SET UP, then select
CONFIGURE, then enter the password (the factory
default password is 0-0-0-0), press Enter to continue.
15. Using the + / - buttons select ECON CONFIGURE, then
select MANUAL / AUTO and press Enter, then select
AUTO and press Enter to continue, then select DONE
and press Enter.
16. The controller will return to the MAIN MENU, select
RUN to go to normal operating mode.
Calibration Tips
1. Ensure that the sensor hose is connected correctly at the
side wall and rear of the sensor.
2. Ensure that the extract fan is running and the Fume
Cupboard is balanced before calibrating the monitor.
3. Take extra time (at least 15 to 20 seconds) to wait for the
airflow to settle before capturing the airflow samples.
This will minimize the chance of a calibration error due
to turbulence or fluctuations.
4. Avoid movement in front of the Fume Cupboard whilst
calibrating the monitor.
5. The Low and High air samples must be at least 0.3m/sec
(60 fpm) apart to calibrate the monitor. This is to avoid
inaccuracy in the calibration sue to insufficient difference
between the samples. The minimum difference can be
changed in the “Low High diff” parameter in the
Cal Config menu.
6. Do not use fully open and fully closed sash positions for
the calibration points, the recommended positions are
normal operating height (e.g. 500mm 20”) for the first
sample and approximately half the sash opening (e.g.
250mm 10”) for the second sample.
