Honeywell 800 Series Manual page 40

HONEYWELL MODEL 700/800 SIGNAL PROCESSOR AND VIEWING HEAD
Safety Function of the S702, S706,
S802, and S806
The S702, S706, S802, and S806 viewing heads do not
have a safety function. They are used to provide flame
intensity information via cables to Signal Processor
Models 531AC, 531DC, 532AC, 532DC, 700AC, 700DC,
and 800 which use Flame Relays to provide a safety
function.
3.50E
-05
3.00E
-05
2.50E
-05
2.00E
-05
PFD
AVG
1.50E
-05
1.00E -05
5.00E -06
0.00E +00
0
Fig. 30. Dependence of the PFD
S70X and S80X Viewing Head Proof Test Procedure
Equipment
1. 700 or P532 Signal Processor connected to the
S702, S706, S802, or S806 viewing head.
2. DC power supply for DC model signal processor and
AC power supply for AC model.
3. A source capable of generating UV or IR signals as
required.
NOTE: For UV use Honeywell UVsource.
For IR connect incandescent lamp to AC source.
Setup
1. Ensure the S702, S706, S802, or S806 viewing head
under test is correctly connected to a compatible
signal processor.
2. While performing the proof test, disconnect or disre-
gard the signal processor outputs so that any out-
puts due to testing do not affect the overall safety
system and potentially cause a hazardous situation.
3. Record all previously entered user programmable
settings so that you can restore them to their desired
values after the proof test.
66-2069EP—08
S706 AND S806 PFD
1 2 3 4
TIME (YEARS)
on the proof test interval for S706 & S806.
AVG
40
S70X and S80X Viewing Head Proof
Test Interval
The proof test must be conducted every 1 to 5 years. This
range is given to allow for the test to be performed during
the normally scheduled burner shutdown period. It is the
responsibility of the user to perform the proof test in the
specified time frame.
The following diagrams present the dependence of the
PFD on the proof test interval. The PFD
AVG
the proof test interval increases.
VS TIME
AVG
5 6 7 8
Tests
NOTE: S702 and S802 viewing heads must be illumi-
nated by an infrared light source. S706 and S806
viewing heads must be illuminated by an ultravio-
let light source.
1. Apply power to the signal processor, fully illuminate
the viewing head with the light source, and ensure
that a flame on condition is indicated by the signal
processor.
2. Gradually angle the light source away from the view-
ing head. Ensure that the count decreases until a
flame off condition is indicated by the signal proces-
sor.
3. Cover the end of the viewing head with your hand
and ensure that the signal processor indicates a
flame count of zero.
4. For model 531AC, 531DC, 532AC, and 532DC, signal
processors, use your light source to generate a
flamecount of between 1200 and 2800, and note the
flamecount. For model 700AC, 700DC, and 800 sig-
nal processors, use your light source to generate a
increases as
AVG
9 10
M35040A