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4.4.5 Registers Map
40001
R/o Flame Count
40002
R/O
0
Channel
1
Delayed relay R2
2
Lockout
3
Panel access
4
Ma out type
5
Early relay R1
40003
R/W Flame on channel A (0 -> 2999)
40004
R/W Flame on channel B (0 -> 2999)
40007
R/W Ma out gain channel A (0 - 99)
40008
R/W Ma out gain channel B (0 - 99)
40012
R/W UV tube gain channel A (0 - 99)
40016
R/W UV tube gain channel B (0 - 99)
40017
R/O Viewing head A type
40018
R/O Viewing head B type
40019
R/O Temperature viewing head A
40020
R/O Temperature viewing head B
40021
R/W Delay time R2 Chan A
40022
R/W Delay time R1 Chan A
40023
R/O Version
40024
R/O 222
40034
R/W Delay time R2 Chan B
40035
R/W Delay time R1 Chan B
Operational time in 2 hr
40062
R/O
increments
4.5 Programming for the "WAtCHDoG III" Flare stack Mon-
itoring system
Always disconnect and reconnect the viewing head while the
signal processor power is disconnected. Connecting the viewing
head while the P222 is "hot" may damage the unit and will not
allow the processor to communicate with the viewing head.
Refer to page 4 (4.2 Front Panel LED Indications and Push
Button Functions) for the P222 LED, display and push button
functions.
4.5.1 Flow Chart – Programming UV Gain
Press „A" and „B"
Button to manually
adjust UV Gain or
select default value
„ADJ?"
Yes
Make Gain
Press Button „B"
Adjustment?
No
Download
Default Values
Yes
Press „B" Button
(YES) to store
New Values
New value
stored as
displayed by
– – – –
Resume Operation with New Data
downloaded to the System
4.5.2 Flow Chart – Programming Relay settings, checking
Viewing Head temperature
0=Chan A
1= Chan B
Relay R2
Processor
lockout status
0 = lockout
Press R1 Relay
Disabled = 0
SETUP Button
1 = 4 to 20
Relay R1
Press UP/DOWN
Button to make
Press STORE
New Value stored
as displayed by
1 to 3600
1 to 60
5 AssIstAnCe In tHe eVent oF MALFUnC-
tIon
1 to 3600
1 to 60
5.1 P222 display shows s256
On power up, the P222 signal processor should display the cur-
rent software version and "S256" if the viewing head connections
are correct. If the display shows "0000" the most likely cause is a
missing source impedance matching resistor. Refer to the Viewing
Head Connections section.
5.2 P222 display shows loop
On power up if the display shows "loop", and older version of the
signal processor is being used. Install a jumper across the external
meter connections GND and RMT+.
5.3 Flame signal is lost
If the system has been operational and the flame signal is lost (as-
suming the flame signal is still present), the likely cause is improper
S256BE viewing head aim due to movement/misalignment.
6 teCHnICAL DAtA
6.1 electrical Input to Processor
AC Power: 85 to 264VAC, 47 to 440 Hz
„AUXX"
300mA maximum with viewing head connected
No
Adjust UV Gain
(00–99)
DC Power (As Main Power): 22 to 26VDC, 300 mA
maximum with viewing head connected
Yes
DC Backup Power: 22 to 24VDC, 300mA with viewing head
Press UP/DOWN
connected. Backup and main power can be connected simulta-
Button to set
neously.
New Values
6.2 environmental
Model P222 signal Processor: Ambient Temperature: 0° C to
Press „B" Button
(YES) to store
60° C (32° F to 140° F)
New Values
Model s256Be Viewing Head:
Ambient Temperature: -40° C to 80° C (-40° F to 176° F)
Viewing head housing: NEMA type 4X / IP66
New value
stored as
6.3 outputs
displayed by
Relay R1: 2 Form C contacts, adjustable delay of 0-60 seconds
– – – –
Contact Ratings: 5A at 30VDC or 250VAC
Relay R2: 1 Form C contact, adjustable delay of 0-3600 seconds
Contact Ratings: 5A at 30VDC or 250VAC
M33539
Analog Flame signal: 0 to 19.8 mA output for remote meters, or
4 to 19.8 mA output (360 ohm max resistance)
EN-6
To Adjust
To Adjust
R1 Relay
R2 Relay
Settings
Settings
Press R2 Relay
SETUP Button
Press UP/DOWN
Button to make
Adjustment
Adjustment
Press STORE
Button
Button
New Value stored
as displayed by
– – – –
– – – –
To Check Viewing
Head Temperature
Simultaneously
Press RESET and
DOWN Button
4 Digit Display Unit
displays Viewing
Head Temperature
NOTE: Temperature
above 80°C
(176°F) will
be displayed in
Flashing Mode
M33540
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