Monitoring The Calibra�On Periods; Reading The Record Of Measured Concentra�Ons And Alarms; Detector Controls - DEGA NS III LCD Instruction Manual

4. Monitoring the calibra�on periods
The detector con�nuously checks the calibra�on validity of the connected sensor.
A�er 12 months since the last calibra�on (Max. calibra�on interval) the LED "ERR" starts flashing and an inscrip�on
starts flashing on the LCD display. The connected sensor must be calibrated immediately. The detector will
transmit the informa�on about the ending calibra�on via current loop. The transmission will be the following:
10 s transmi�ng a 4-20 mA signal informing about the actual gas concentra�on following a 1 second interval of 2 mA current.
5. Reading the record of measured concentra�ons and alarms
The detector periodically a�er 60 s stores the current detected concentra�on into it's internal memory. The internal memory
retains data from the last 64260 measurements (cca 34 days). In order to read this informa�on, the program DegaConfig is
required. Refer to the DegaConfig program instruc�on.

Detector controls

Detectors equipped with an LCD display can be controlled by the magne�c contact located on the sides of the display
Placing a magnet into the indent „
LCD.
Reaching level 4 alarm with cataly�c and semiconductor sensors causes a ratchet phenomenon, where even a�er recovery
from gas leak, the sensor is s�ll in level 4 alarm and needs to be manually reset by pressing „
- „BACK" move backwards in the menu, reducing the value
- „FRON
T"move forwards in the menu, incr easing t he v
- „ENTER" confirm/enter th e menu
" for 5 s, ac�vates the magne�c control, which is displayed by the icon „
9
Warning: calibra�on
1
required
3
Date display
Channel number
5
(adress)
7
Calibra�on icon
9
Measured value
11
Measured value units
Alarm STEL (exceeding
13
short-term exposure
limit)
15
Alarm indica�on
Warning: Service is
2
required
4
Time display
Ac�vated magne�c
6
control
Communica�on with the
8
control panel in
progress
Bar graph of the
10
measured value
Alarm PEL (exceeding
12
long-term exposure
limit)
14
Reached alarm level,
alarm levels
alue
" on the
".