Waterra WS-2 User manual

waterra.com
WS-2
Water Level Sensor
Owner’s Manual
Groundwater Monitoring Equipment & Supplies
SN# 2021

low battery
indicator
water
indication
light
buzzer
sensitivity
adjustment
on/o switch
OPERATION
Waterra has designed the WS-2 Water Level Sensors as lightweight, com-
pact, water level measuring devices. They feature both enclosed reels with very
narrow profiles and more traditional open reels. The WS-2 closed reel can carry
up to 30 meters or 100 feet of flat tape. The WS-2 open reels can carry 50, 75,
100, 200 or 500 meters or 250 feet of flat tape.
The electronics module located in the hub of the reel contains the batteries,
electronic circuit board, buzzer, light, on/off membrane switch and sensitivity
adjustment knob.
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 WS-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 WS-2 water level probe contacts water, the buzzer will emit a contin-
uous tone and the water light will illuminate. In some groundwater conditions,
the probe may not adequately detect the water in the well. This may be caused
by low salinity. When this happens, the sensitivity of the unit can be adjusted
by rotating the sensitivity adjustment knob located on the left side of the front
hub panel.
open reel — counter clockwise
The WS-2 open reel winds the flat tape
back onto the reel by rotating the handle in
the counter clockwise direction.
closed reel — clockwise
The WS-2 closed reel must be rotated in
the clockwise direction to wind the tape
back onto the reel.
OPERATION
adjusting the conductivity sensitivity setting
In order to allow the WS-2 to detect water of various salinity, the design in-
cludes a sensitivity adjustment knob. This knob is located on the left side of the
front hub panel. In monitoring wells where excessive bridging is experienced,
the knob should be rotated to the left. Where water of low salinity is suspected,
the knob should be rotated to the right. The optimum setting is obtained by
adjusting the control knob to the point where the WS-2 is no longer emitting the
water signal while the probe is immersed in the well. Then rotate the knob back
in the opposite direction slowly, stopping when the water signal begins again.
winding the reel
The flat tape on WS-2 open reels and WS-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.

BATTERY REPLACEMENT
The WS-2 is powered by four Duracell AA alkaline cells. These cells are con-
tained within the hub of the unit. Replace the batteries when the indicator light
shows that they are worn or at least once per year.
The batteries can be accessed by removing
the two screws located on the Front Panel
above and below the label. Remove these
screws with a Phillips screwdriver and then
carefully lift the Front Panel from the front
hub. Turn the Front Panel upside down and
place the two screws in the panel.
1
The battery pack is located on the rear side
of the Main Circuit Board which is now ex-
posed. You must remove the four screws
which hold the Main Circuit Board in place to
gain access to the battery pack. Remove the
two screws at the top and the two screws at
the bottom of of the Main Circuit Board and
place them in the Front Panel.
Remove the Main Circuit Board by using a
small flat screwdriver and placing the blade
of the screwdriver under the edge of the
Main Circuit Board, alternating from the left
side then the right side of the board. This will
disconnect the board from the two connec-
tors located on the back side.
2
3
Once the Main Circuit Board is removed, turn
it over and replace the worn AA cells with four
fresh Duracell AA batteries. Be sure to orient
the batteries in accordance with the direc-
tions supplied on the battery pack. Return
the Main Circuit Board to the reel by carefully
lining up the pins with the connectors (4 pin
connector on the left, 6 pin connector on the
right) and press the Main Circuit Board into
position.
Replace the four screws in the Main Circuit
Board. Replace the Front Panel to the hub
and return the two screws to the correct
holes, above and below the label. Care must
be taken not to over tighten the screws. Over
tightening may strip the threads from this
part.
4
5

PARTS LIST
TAPE & PROBE ASSEMBLY
WARRANTY
Waterra Pumps Limited and Waterra USA Inc. (“Waterra”) warranty all well
probe parts to be free from defects in material and workmanship affecting its
use for a period of 12 months following the date of purchase.
exclusions and conditions
The Waterra Warranty does not include shipping or an obligation to provide
another unit while the original well probe is being repaired.
The Waterra Warranty does not apply to well probes used as rental equipment
or to well probes contaminated by materials harmful to such products.
The Waterra Warranty does not apply to the tape or batteries used within the
well probe.
The Waterra Warranty does not apply to parts failure due to neglect in cleaning
or servicing the well probe nor does it cover failure of a part caused by misuse
or inappropriate use of the well probe.
The Waterra Warranty is not valid if the well probe is not paid for in full within
60 days of the invoice date.
returning well probes to Waterra
Waterra requires that all customers notify Waterra prior to returning their well
probe under the Waterra warranty program. The well probe will only be accept-
ed if it has been thoroughly cleaned and decontaminated. Well probes must be
properly packaged.
Please contact Waterra in order to obtain a shipping address.
ROUTINE MAINTENANCE
In order to maintain your WS-2 in the best working order, some routine mainte-
nance is required. The flat tape should be inspected for cuts and abrasions on
a regular basis. Severely damaged tapes should be replaced. Contact Waterra
if this is required.
The tape should be completely spooled out of the reel and cleaned with a damp
cloth and the reels will also need to be wiped down to remove sand and mud.
Be sure to wind the tape back onto the reel in the correct direction (see Probe
Holder & Winding the Reel) .
Check that the tape is wound onto the reel in an even manner. Do not allow the
tape to accumulate on one side of the reel.
The probe tip should be cleaned on a regular basis with a toothbrush and wa-
ter to remove any material that may accumulate there. A clean probe tip will
increase meter accuracy.
Replace the batteries when the indicator light shows that they are worn or at
least once per year. See the battery replacement instructions for directions.
water resistance
The WS-2 are designed to be water resistant, however these units are not wa-
terproof. Do not immerse the WS-2 as this will damage the electronics and
flood the unit.
cleaning and decontamination
The WS-2 should be kept as clean as possible as this will help keep the units in
good working order. The flat tape can be cleaned by spooling the tape out of the
reel into to a large bucket, allowing it to soak in a cleaning solution. The recom-
mended detergent for this is Alkanox.
Rinse the tape in clean water and pass the tape through a clean cloth as it is
wound back into the reel.
Do not immerse the reel and electronics! The reel can be cleaned with a clean,
damp cloth. If the inside of the reel becomes contaminated or is excessively
dirty, the tape and reel should be disassembled for a more thorough cleaning.

Canada & International
Waterra Pumps Limited
5200 Dixie Road, Unit 17
Mississauga, ON L4W 1E4
CANADA
tel: [phone]
fax: [phone]
email: [e-mail]
United States
Waterra U.S.A. Inc.
36 Ranch Creek Road
Peshastin, Washington
USA 98847
Tel: [phone]
Fax: [phone]
email: waterr[email protected]
Groundwater Monitoring Equipment & Supplies
CONTACT WATERRA