Operation Of The Leakage Indicator - Hugyfot EOS 450D User Manual

8. Operation of the leakage indicator

The leakage indicator is nicely fit into the circuit board mounted at the left
of the housing. The moisture sensor is installed at the bottom of the hou-
sing. The unit runs on a single 1/2AA size 3.6V lithium battery which lasts
for about 5 years when the electronics are in 'stand by' mode. As soon as
a strobe is activated the electronics will notice and they will be in 'active'
mode. In this mode the batteries will last for about 100 hours. There is no
need to disconnect the strobes to save power, only switching off the strobes
will set the electronics to 'stand by' mode. In 'stand by' mode, the leak-
age detector will still be functional. Due to this extended lifespan, no on/off
switch is used. We do recommend to remove the battery when not using the
housing for a extended period.
With the battery installed, the leakage indi-
cater will show a red LED (blin king) when in
standby mode. When the hou sing is closed
one can observe the red LED through the
back window. 7
In case a flooding should occur, the red
6
LED will burn permanently and an acous-
5
tic signal will be heard.
4
Testing:
3
The battery, the horn and the signalling-
2
LED can be tested when a moist finger is
1
held onto the moisture sensor in the bot-
tom of the housing. As this will simulate a
leak, the horn will sound and the LED will
shine.
1. 1/2AA size 3.6V lithium batteryront shell - 2. Connection for software upload - 3. Signal-
ling LED's (red: leakage indicator - yellow: strobe ready) - 4. Connection for second ex-
ternal strobe - 5. Connection for first external strobe - 6. Connection to camera hotshoe -
7. Acoustic alarm.
Hugyfot Housing for Canon 450D 13 User manual