Azbil AUD300C1000 User Manual

12
Chapter 4. ADJUSTMENT
 Before measuring the flame voltage
Before measuring the flame voltage, execute an operational check of
this device using the flame voltage output terminals of the burner
controller.
Model No. Flame voltage output terminals
AUR300C
AUR350C
Terminal 9 (+)
Terminal10 (−)
AUR450C Positive terminal, Negative terminal
(1) Connect an analog flame meter (FSP136A100) to the flame volt-
age output terminals of the burner controller.
(2) Light a lighter in front of the ultraviolet ray receiving part of this
unit to check that the voltage is output correctly.
Handling Precautions
•
Before using fire, check that there is no flammable gas around
this device.
 Measuring the flame voltage
If there are both pilot and main flames, measure the voltage of each.
Measure the flame voltage for the maximum (high fire) and minimum
(low fire) combustion.
(1) Mount this device on the monitoring pipe temporarily.
(2) Start burner combustion.
(3) To determine an optimal monitoring position, measure the flame
voltage of the burner controller with the analog flame meter
(FSP136A100) while moving the monitoring pipe position little
by little in order to find a position where as highly stable voltage
as possible is shown.
Recommended flame voltage Inspection item
The flame voltage must be stable at 2.0VDC
or more.
(It may fluctuate in a range of 0.1–0.3V synchro-
nized with the shutter operation of this device.)
•
Is the flame properly monitored?
•
Is the detector’s light-receiving lens clean?
•
Is there accumulated soot, etc., in the moni-
toring pipe?
Handling Precautions
•
If the flame voltage exceeds 4V, install an orifice to limit the
amount of ultraviolet radiation. If the amount of ultraviolet radia-
tion is too large, UV rays may enter the tube unit due to diffuse
reflection even when the shutter is closed, causing a malfunction.

Azbil AUD300C1000 Specifications

General

Brand	Azbil
Model	AUD300C1000
Category	Security Sensors
Language	English