HYDROCARBON INTERFACE SENSOR
HS-2
BATTERY
POWER
(timed)
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WATER
intermittent
OIL
continuous
buzzer
water
indication
light
on/off switch
low battery
indicator
hydrocarbon
indication
light
OPERATION
Waterra has designed the
HS-2 Oil/Water Interface Tapes
as lightweight,
compact, oil/water interface measuring devices. They feature both enclosed
reels with very narrow profiles and more traditional open reels. The HS-2 closed
reel can carry up to 30 meters or 100 feet of flat tape. The HS-2 open reels can
carry 50, 75 or 100 meters or 250 feet of flat tape.
The electronics module located in the hub of the unit contains the batteries,
electronic circuit board, buzzer, light, and on/off membrane switch.
The on/off switch has a built-in timer so that the unit will automatically turn
itself off after three minutes. This feature is designed to extend battery life.
When the HS-2 is turned on, the battery light will be illuminated continuously.
Low batteries are indicated by a flashing signal from the battery light indicator.
When the HS-2 Interface probe contacts a hydrocarbon liquid, the buzzer will
emit a continuous tone and the oil light will illuminate. When the probe contacts
water, the buzzer will emit an intermittent tone and the water light will illumi-
nate. There is no sensitivity adjustment available for the HS-2 meter.
HYDROCARBON INTERFACE SENSOR
HS-2
BATTERY
POWER
(timed)
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WATER
intermittent
OIL
continuous
open reel — counter clockwise
The
HS-2 open reel
winds the flat tape
back onto the reel by rotating the handle in
the counter clockwise direction.
closed reel — clockwise
The
HS-2 closed reel
must be rotated in
the clockwise direction to wind the tape
back onto the reel.
OPERATION
The flat tape on HS-2 open reels and HS-2 closed reels must always be wound
back onto the reel by rotating the handle in the correct direction, however the
direction of winding is not the same for both of these reel formats.
Winding the tape back onto the reel in the wrong direction will cause problems.
Additionally it is important with both reel designs that the tape be spread evenly
across the spool as it is wound back into the reel. This can be done by rocking
the reel from side to side as the tape is being wound up.