Set The Cell Operating Voltage - DALEMANS octoPRO Calibration Manual

Set the cell operating voltage

Each type of cell has a maximum operating voltage value
not to exceed to prevent cell from quickly becoming
unusable.
Referring to this table, always adjust the operating voltage
on the "Ideal" value without exceeding the "Max" value.
The type of cell is specified on the marking label on the
detection head of the detector.
For the following procedure, the sensor cell as well as the power supply must be connected to the DEX CAN
transmitter. Please refer to the note of installation of the DEX CAN for more information.
Voltmeter
+ -
Figure 11 : Measuring cell operating voltage on DEX CAN transmitter
OctoBUS 64 central unit
DEX CAN Transmitter
Figure 12 : Measuring cell operating voltage on remote detector
Warning !
Potentiometers
are not multi-turn.
Act SOFTLY.
Figure 13 : Adjusting the cell operating voltage
Can Bus Gas Detectors -
C lib ti
Man-CanDetectors-Cal-En-V10.doc
Type of
Cell
DAL17
DAL50
VQ41
• Power on the DEX CAN transmitter and
• Set the voltmeter on Vdc position and
Special sockets Note: the transmitter terminal block has special
for probes sockets to receive the voltmeter probes or test
plugs with 2.3mm diameter (Dalemans art. code
BOR00000075).
Voltmeter
+ -
• If the DEX CAN transmitter is remote from
Remote detector
Usens
potentiometer
• With the precision screwdriver gently
Operating voltage Usens
Min. Ideal
1.925 2.00
2.400 2.50
1.900
2.00
wait for at least 15 sec.
connect it between terminals A and P of
the DEX CAN transmitter.
the detector, connect
between terminals A and P of the detector
terminal block.
adjust the "Usens" potentiometer of the
transmitter so that the voltmeter reading
matches the recommended operating
voltage for the type of cell (refer to column
"Ideal" in table here above).
Max.
2.025
2.550
2.050
the voltmeter
5