Senseca ECO 420 handleiding
Handleiding
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ECO 420 series - Compact CO2 monitor with alarm
Operation and maintenance
B-H90.0.0X.DK2-4.1 Page 17 of 26
range integrated in the device, the display flashes briefly and an acoustic signal is issued
every 10 s.
4 If a stable correct value is reached, the display flashes briefly, an acoustic signal sounds
and the bar indicator blinks.
[.SL appears in the display.
5 Remove the test gas and connect a second test gas to the extraction device. The device
determines a stable value first. If the measured value is outside of the value range
integrated in the device, the display flashes briefly and an acoustic signal is issued every
10 s.
6 If the display flashes briefly, an acoustic signal sounds and the bar display blinks, a stable
correct value has been achieved.
7 You can change the value of the gradient compensation with the up key and down key.
Otherwise, confirm the preadjusted value with the function key.
8 Remove the extraction device.
The 2-point adjustment is finished
6.2.3 Basic sensor adjustment
Used to reset the sensor in case of deviations beyond the normally expected deviations. The
values of all prior adjustments are reset and cannot be restored. A plausibility check of the
carbon dioxide concentrations does not take place. De-pending on the setting, it can be
adjusted either to 0 ppm (e.g. nitrogen) or to 400 ppm of fresh outside air (or 400 ppm of CO
2
test gas). Ensure that the setting of the gradient compensation setpoint [.SL was entered
correctly in the “Expanded set-tings menu”.
If reliable values can no longer be displayed, we recommend performing basic sensor
adjustment of the zero point at 0 ppm CO
2
with nitrogen and a possibly necessary additional
gradient compensation via 1-point adjustment.
If incorrect values are displayed after the adjustment, e.g. ERR.2 at 0 ppm CO
2
, the adjustment
must be repeated.
Required material:
Clean ambient air or
Test gas 0 ppm CO
2
for basic sensor calibration at 0 ppm
Gas extraction device, if applicable
In order to conduct a CO
2
adjustment, proceed as follows.
1 Press the Function key for 4 seconds to start the calibration. [ONF appears in the display
first, then [AL.
2 Basic sensor adjustment is started. KARD appears in the display.
3 Depending on the specification [.SL, let the test gas with 0 ppm CO
2
flow in at approx. 0.5
l/min or move the device into clean ambient are with 400 ppm CO
2
.
The device determines a stable value first. If the displayed measurement is outside of the
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Productinformatie
| Merk | Senseca |
| Model | ECO 420 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 2979 MB |
