Winland Electronics WB350 - Manual (Page 3)

I
NTRODUCTION
Thank you for your purchase of the Winland WaterBug model WB-350. The WaterBug is completely electronic and is designed
to detect water only (distilled and deionized water cannot be detected). For proper operation this unit must be used in
conjunction with an alarm system, wireless transmitter, etc. It is designed so the control console mounts on a wall or other
flat vertical surface and the remote probes are placed in the locations where water leakage is most probable. Up to six
remote probes may be connected to one control console. A film of moisture forming a bridge between the two metallic
contacts on any remote probe is all that is needed for the unit to signal an alarm condition.
The output on the WB-350 is non-latching, but will remain closed until the moisture bridge is broken. As sensitive as the
WaterBug® is, it will not alarm due to high humidity or condensation. The WaterBug® is ideal for use in homes, offices,
computer rooms, boats, etc. Several consoles may be wired together to monitor an entire complex.
LOW BATTERY INDICATION: The WB-350 will trip the open collector output and give an audible warning if battery voltage
runs low.
I
NSTALLATION
Locate the area where the WaterBug® console is to be mounted. Mark
the position of the screw hole on the mounting surface. Drive the
mounting screw into the wall allowing 3/16” between the screw head
and the wall. Engage the key slot on the back of the console and the
screw head and press down.
Multiple probes must be hooked up in parallel to terminals S and S. See
Figure 1. The remote surface probes may be mounted securely to the
floor or a wall. See Figure 2 and Figure 3.
Mounting the probe(s) to a vertical surface like a wall enables you to
monitor an area for rising water levels. This is useful in basement sump
pumps and other types of water storage and drainage systems.
Note: WB-350 is equipped with an onboard buzzer for local
annunciation and low battery warning.
T
ERMINAL
B
LOCK
C
ONNECTIONS
The WB-350 is powered by one 9-volt alkaline battery. To install the
battery, loosen and remove the four corner screws. Insert the new
battery and retighten the four corner screws. The WB-350 can be used
in conjunction with virtually any type of wireless transmitter if any
one of the remote probes detects water. When connecting the unit to a
wireless transmitter, wire the N.O. terminal and C terminals to the input
of the wireless transmitter. If your initial wiring activates the wireless
transmitter when no moisture is present, reverse the leads on N.O. and
C on the unit.
T
EST
P
ROCEDURES
To test the unit’s operational status, form a water bridge between the two metallic contact points (See Figure 2) with a
moistened finger or cloth. If working properly, the console will give an audible warning and activate a connected warning
device within approximately three seconds. The unit will reset automatically when the probe dries and there is no longer a
water bridge between the two metallic contact points.
Common (-)
Trip (+)
Not used
Not used
Figure 1
Standard Surface Probe
If a remote probe is to be bolted down in a permanent installation,
drill only in the innermost center recessed area (See Figure 3). Drilling
anywhere other than the innermost circle may damage to the internal
wiring may occur, causing the unit to fail.
M
ONITORING FOR THE
A
BSENCE OF
W
ATER
The WaterBug® model WB-350 should not be used to monitor for the
absence of water as doing so will significantly reduce battery life.
Note: Use the WB-200 (hardwire version) when monitoring for the
absence of water.
WATER
WATER
W
ATER
W
ATE
R
Figure 2
ALARM NO ALARM
Four Probe Contacts
Mount the probe to ensure
these four stainless steel
contacts are against the
surface to be monitored.
Figure 3
Drill only in the
innermost area.
To insure proper operation, test weekly.
Concrete can be semi-conductive. If
experiencing false alarms, insulate
all probes mounted on concrete.