12V Submersible Pump Operating Instructions
High Quality Groundwater and Surface Water Monitoring Instrumentation
(Page 1 of 3)
Model 415
®Solinst is a registered trademark of Solinst Canada Ltd.
SAFETY INSTRUCTIONS
• The 12V Pump Controller can get warm. It is set to turn off
at 65ºC.
• Do not block the fan intake or exhaust vent during operation
of the 12V Pump Controller.
• Do not touch the inside of the 12V Submersible Pump after
it has been running – the motor module gets extremely hot.
• This 12V Submersible Pump is to only be used for
groundwater purging/sampling.
• The 12V Pump Controller is water resistant but not
waterproof. Do not submerge in water.
• Do not use the 12V Pump Controller near flammable liquids
or gases.
• The 12V Submersible Pump is designed to operate when
submerged only.
• The Solinst Model 415 12V Controller is only designed to
work with the Solinst Model 415 12V Submersible Pump.
Power Supply
The 12V Pump Controller operates from an external 12 volt
DC power supply such as a car, truck or marine 12 volt battery
that can supply up to 45 amps at maximum draw. The Pump
Controller has a 2.3 m (7.5 ft) power cable with connector clips
for direct battery connection.
The power cable clips are oversized for use with automotive
batteries. The red clip connects to the positive (+) battery
terminal, black to negative (-) battery terminal. If the battery
is connected with reverse polarity the Controller will not be
harmed, but it will NOT operate until the polarity is connected
correctly (the LED on the Pump Controller will remain off with
reverse polarity).
A circuit breaker reset button is located on the side of the Pump
Controller. In the event the amperage exceeds 50 amps, the
circuit breaker will trip (button pops out) and turn the Controller
off. To reset the breaker, turn the dial to “0” then press the
reset button back in to regain operation.
If the Pump is to be powered by a typical 45Ah vehicle battery,
start the vehicle and run for 15 minutes to recharge the battery,
then restart the vehicle every 15 minutes for 5 minutes to
maintain the battery power during sampling.
Operation
• The Pump Controller should always be kept with the dial
in the OFF position when it is being attached to a power
source or stored.
• The Pump Controller dial is used to adjust the flow of
water being discharged. As you increase the dial, so does
the Controller’s voltage output. This will enable the Pump
motor to spin faster, therefore, increasing the flow of water
being discharged. To slow the flow of water, turn the dial
counter-clockwise.
• When the dial is in the OFF position the Controller will
produce 0 volts, in the highest position “10” the Controller
will output 25 volts.
• The Controller has a low voltage disconnect at 10 volts as
indicated by the slowly flashing yellow light. (However, the
Controller can disconnect at a higher voltage if the Pump’s
current increases, e.g. if the Pump is running at maximum
current (20 amps), the battery can disconnect at 11.7 volts.)
The Controller will shut off and then turn on every few
seconds (pulsate) or the water flow from the Pump will slow
if the output voltage on the battery drops to 10.75 volts
when in use. Stop operation, disconnect the power, and
recharge the battery.
1. Connect the negative (black) battery clip to the negative
terminal post on a 12 volt DC battery and the positive (red)
battery clip to the positive terminal.
2. Connect the Pump’s cable to the connector cable from the
Pump Controller.
3. Connect the 3/8" ID tubing to the Pump. Ensure the
tubing is pushed all the way onto the tubing barb.
4. Lower the Pump to the required sampling depth. Use
a safety line connected to the eyebolt on the top of the
Pump, if desired (such as a Model 103 Tag Line).
5. Turn the dial to adjust the flow as desired.
Maximum Flow Rate Estimates
Depth to Water
Flow Rate
30 ft (10 m)
12.5 L/min
40 ft (12 m)
11.0 L/min
50 ft (15 m)
9.5 L/min
70 ft (21 m)
7.5 L/min
80 ft (24 m)
6.0 L/min
100 ft (30 m)
4.25 L/min
110 ft (33.5 m)
1.5 L/min
Tubing Specifications
1/2" OD x 3/8" ID LDPE (100 ft coil)
109490
1/2" OD x 3/8" ID LDPE (250 ft coil)
109489
1/2" OD x 3/8" ID LDPE (500 ft coil)
109488
Battery
Pump
Sample
12V Pump
Controller
Note
: See Model 415 12V Submersible Pump data sheet for full pump curve.
Note:
See Page 3 for dedicated set up using a 2” Well Cap Assembly.
