CodaOctopus Martech Watchdog2 User manual
Test, Measurement and Control Solutions for Demanding Applications
Coda Octopus Martech Limited
17 Mereside, Osprey Quay, Portland, Dorset DT5 1PY, UK.
t: +44 (0)1305 770440 f: 07092 870664 martech@codaoctopus.com, www.martechsystems.co.uk
Company No. 02300406, VAT No. 510892555
A Coda Octopus Company, Headquartered in USA
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Watchdog2 Fire Sprinkler Controller USER Guide
This document provides essential information for the owner/user/householder on the Watchdog2.
INTRODUCTION
The Watchdog2 sits at the heart of the fire sprinkler system,
monitoring sensors and performing periodic tests to help
ensure that the system is fully functioning and ready at all
times.
This document is intended to provide essential
information for the user or householder in the event that
a problem arises.
The Watchdog is only one part of the fire sprinkler system,
and other parts such as sensors pumps and valves are
required to create a complete system, but are not covered
here. Please refer to the fire sprinkler system installer for
full details of your installation.
WARNING –Users/householders should not attempt to perform maintenance themselves. This
document is intended to provide basic guidance to users on the appropriate action in the event of an
unexpected situation. Always seek professional advice from a sprinkler installer or qualified electrician.
WARNING –Watchdog2 is a safety critical device and MUST be installed by a qualified electrician/electrical
engineer and serviced by a qualified sprinkler engineer in accordance with relevant electrical installation
regulations and relevant fire sprinkler regulations.
Failure to correctly install, configure and maintain the system as a whole, may result in the fire sprinkler
failing to operate when required, resulting in loss of life or severe injury.
Risk of Electric Shock. Do not open or remove the cover on the Watchdog2. There are no user serviceable
parts inside, and there is a risk of electric shock or loss of life due to live mains voltages (230Vac) inside.
Coda Octopus Martech Ltd. (Martech) accepts no responsibility for failure of any kind resulting from
incorrect installation or failure to maintain the system or from installation or maintenance
by unqualified installers
For the latest version of this manual and additional resources and technical support,
please visit www.firesprinklerwatchdog.com or scan the QRcode:
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COMMON PROBLEMS AND FREQUENTLY ASKED QUESTIONS
1. The Watchdog2 makes a beeping sound
a. This is usually because there is a fault or it requires attention. An LED should also be
illuminated/flashing to indicate the nature of the problem.
See below for LED functions.
The sounder can be temporarily silenced by pressing the RESET button, until the next
periodic test.
b. If there is NO green LED illuminated AND the Watchdog 2 is fitted with an optional
rechargeable battery, the sounder will beep every 10 minutes to alert to a power loss.
c. A continuous alarm tone, accompanied by the FIRE! LED indicates that it is in Fire Mode
because water flow has been detected. This normally means that a sprinkler head is open
and implies there is a fire.
2. LEDs are illuminated/flashing.
a. Refer to LED table below for more information.
3. The pump runs occasionally when there is not a fire.
a. The pump may run occasionally for a short period to maintain the pressure in the system.
This is normal.
b. The pump will run periodically (typically weekly) as part of the system’s automatic self-test.
This is normal. The time can be reset to run at your preferred time.
c. The pump runs for more than a few minutes or multiple times a week when no sprinkler
head is open,
THIS IS NOT NORMAL. Seek advice ASAP.
4. Running water can be heard or seen coming from the sprinkler system.
a. The sprinkler system is fitted with a valve which opens as part of the automatic periodic
self-test to discharge a small amount of water.
This is normal.
b. Other unplanned water discharge or leaking of the system will result in a fault alarm being
raised.
THIS IS NOT NORMAL. Seek advice ASAP.
NOTE –Sprinkler heads ONLY open when heat is applied, such as during a fire. The Watchdog2 cannot
cause the sprinkler system to operate unless there is a fire and a sprinkler head has opened.
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BASIC CONTROLS AND INDICATORS
All user input is via the 2 front panel push buttons ‘TEST’ (top) and ‘RESET’ (bottom).
6 LEDS indicate the system status.
AUDIBLE AND VISIBLE ALARMS
The Watchdog2 has an internal sounder to alert to a problem. The sounder is always accompanied by an
LED indicator.
In the event of an alarm sounder or fault LED, you should always refer to the sprinkler system installer for
further advice. See also below for LED indicator details.
The FIRE! LED indicates the flow sensor has detected water flow, which may indicate that a sprinkler head
has opened and therefore that there may be a fire. Take immediate action to evacuate the premises if
necessary.
To temporarily SILENCE the Watchdog2, press the reset button for approx. 1 second.
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LED INDICATORS
LED
Function
PUMP (yellow)
ON = pump running (power applied to pump)
FAULT (red)
The LED stays on for 10 seconds then flashes according to the fault. At the last flash
the LED stays on for 10 seconds before the sequence is repeated (see below
example for 3 flashes).
2 flashes - Auto_Test_Failure
3 flashes - Low_Water
4 flashes - Pressure_Switch1_Failure
5 flashes - Pressure_Switch2_Failure
6 flashes - Excessive_Operation
7 flashes - Phase_Failure (not on WD2)
8 flashes - Maximum_Run_time
9 flashes - Monitored_Valve_Failure (not on WD2)
10 flashes - Possible Fire (pressure loss but no water flow detected)
FIRE! (red)
Flash 2Hz (0.5 secs) = Fire Mode
Water flow detected. Normally means that a sprinkler head is open. Implies there
is a fire.
SERVICE (blue)
Flash 1Hz (1 sec) = Whole system service required
Refer to installer for servicing of the whole system.
TESTING (orange)
Automatic testing in progress
Flash every 2 seconds = Dump Valve open (water discharged from system)
Normally only on during periodic automatic test (normally weekly)
ON = Remainder of auto test in progress OR
ON = Wait period after operation (e.g., after jockey mode)
Also
ON when a USB stick is inserted and read/write is in progress (sounder sounds
when read/write is complete)
POWER (green)
Mains power connected. Illuminated all the time when main power available.
ON 10
secs
ON 10
secs
ON 10
secs
Flash1 2 3
Flash1 2 3
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BUTTON FUNCTIONS
Function
Button Press
Action
Silence sounder
RESET button, short press (>1 <2
secs)
Silences sounder until next weekly test
Contact installer ASAP for further help and
maintenance.
Stop pump
RESET button >10 secs, when
pump is running in fire mode or
possible fire mode
Stops pump, but only after initial jockey run
period. Will resume if pressure not restored or
water flow is present.
Contact installer ASAP for further help and
maintenance.
Reset periodic test
time.
RESET button > 10 secs (beep)
Followed immediately by
TEST button >10 secs (beep)
Resets periodic test time (time of day when
auto test will run). The frequency of the test
(e.g., every 7 days) is configured in the USB
settings file
FIRE MODE
TEST + RESET >10 seconds
Forces FIRE MODE (Pump running only. Does
NOT open any sprinkler)
Run pump
TEST button, short press (>1<5
secs)
Runs pump for 10 seconds (no dump valve
operation)
Run periodic
automatic test.
TEST button >10 secs (beep)
Runs full test with dump valve etc.
See periodic automatic test below
PERIODIC AUTOMATIC TEST SEQUENCE (ALSO KNOW AS WEEKLY SELF-TEST)
Periodic Automatic
Test
Refer to Button
Functions above to
reset the time of
day to run the test
Runs periodic
test according
to time period
in settings file.
e.g., weekly.
(default = 7
days)
1. Open dump valve, FLASH TESTING LED
2. Discharges water
3. Wait for pressure drop
4. Confirm both pressure sensors detect pressure drop
(times out after defined auto-test period fault)
5. Close dump valve as soon as pressures switches activated
6. Run pump (PUMP LED ON)
7. TESTING LED to ON
8. Confirm both pressure sensors reinstated/closed
9. Run on for X secs after pressure reinstated (jockey run
period)
10. If any faults detected, set fault o/p
11. TESTING LED OFF
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