6
F1 : Select Node
F10 : Setup > 2 : Module > 2 : DEXCAN
F10 : Setup > 1 : Range
F3 : Calibration > ENTER
For more information about the use of OctoPRO device refer to the
related Instruction Manual.
Zeroing the DEX CAN
•
Before zeroing, allow the detector to be
powered for at least 15 min.
•
Set the voltmeter on mV
DC
position and
connect it to the DEX CAN transmitter
using the measurement plug.
•
With the precision screwdriver gently
adjust the "
CAL
" potentiometer so that the
voltmeter reading is 0mV ± 0.1mV.
•
On the
OctoPRO
, select the detector
address, then select type of module
DEXCAN and enter the measuring range.
•
On the
OctoPRO
press
F3
to select
Calibration
function.
•
Press
ENTER
to start calibration and wait
until procedure completion.
Please refer to the OctoPRO Instruction Manual for measure function.
Adjusting gain of DEX CAN
•
Detector must have been zeroed as
described here above.
•
Visualize the detector measure on the
OctoPRO
display (press F2) or on the
OctoBUS 64
central unit display.
•
On the cylinder, set flow rate at 0.8 l/min
and apply calibration gas until the
measure reading stabilizes.
•
With the screwdriver gently adjust the
GAIN
so that the measure reading
matches the applied calibration gas
concentration.
Example :
Cal. gas 2,5% Methane (CH
4
)
L.E.L. CH
4
= 5%
Cal. gas = 50% L.E.L.
Æ
Measure (Dir) = 50
Voltmeter
+ -
0.00mV
DC
Warning !
Potentiometers
are not multi-turn.
Act SOFTLY.
CAL potentiometer
Measure DEXCAN
Dir: 38,17
AVG: 0,00
A1.A : 01100000
Measure reading on the
OctoPRO display
Man-CanDetectors-Cal-En-V10.doc
Can Bus Gas Detectors -
C lib
ti
GAIN
potentiometer
Warning !
Potentiometers
are not multi-turn.
Act SOFTLY.
Measure DEXCAN
Dir: 50,00
AVG: 0,00
A1.A : 01110000
Measure
reading
Calibration gas
Flow rate = 0,8 l/min.
Detector
Содержание octoPRO
Страница 10: ...NOTES Gas detection...
