Solinst 464 Mk3 User manual

Model 464 Mk3
Electronic Pump Control Unit User Guide
September 24, 2019
#109652 Rev. C

Model 464 Electronic Control Unit User Guide - Contents
1.0 Introduction 1
1.1 Operating Principles 1
1.2 Model 464 Electronic Control Unit Specifications 1
1.3 Control Panel 2
1.4 LCD Display 2
2.0 Control Unit Operation 3
2.1 Start Up 3
2.1.1 Main Menu 3
2.2 LCD Contrast 4
2.3 About 4
2.4 Preset Flow Rates 4
2.5 User Flow Rates 5
2.5.1 Saved Settings 5
Edit Settings 6
Delete Settings 6
2.5.2 Create Setting 7
2.6 Automatic Drive/Vent Cycles 7
2.7 Manual Drive/Vent Cycles 8
2.8 Battery Replacement 8
3.0 Pumping Instructions 9
3.1 Preparation 9
3.2 Pumping Set Up 9
3.3 Calculating Drive and Vent Times 10
Bladder Pumps – Drive Time 10
Bladder Pumps – Vent Time 10
Double Valve Pumps – Drive Time 11
Double Valve Pumps – Vent Time 11
3.4 Pump Optimization 12
Bladder Pumps 12
Double Valve Pumps 12
4.0 Accessories 13
5.0 Maintenance 14
6.0 Storage 15

Model 464 Electronic Pump Control Unit User Guide
Page 1
1.0 Introduction
1.1 Operating Principles
The Model 464 Electronic Control Unit controls the supply of compressed gas
to pneumatic pumps. Drive (pressure) and vent periods are cycled to provide
water flow. During pressurization periods, water is forced into the sample tubing.
The vent period allows water to re-enter (recharge) the pump. Cycle repetition
may be controlled manually or automatically using pre-set pumping rates.
1.2 Model 464 Electronic Control Unit Specifications
Figure 1-1 Model 464 Electronic Control Unit (125 psi)
Model 464 Specications
125 psi 250 psi
Operating Temperature: -20ºC to 50ºC
Weight: 5 lbs (2.3 Kg) 7.8 lbs (3.5 Kg)
Dimensions: 9.1 x 10.2 x 4.9” (23 x 26 x 12 cm)
Drive/Vent Time Range: 1-999 seconds
Maximum Site Name
Length: 16 characters (upper or lowercase and numeric)
Memory Capacity: 99 user ow rates in non-volatile FRAM
3 preset in Flash
Battery Life: 40,000 drive/vent cycles @ 25ºC from 4 AA alkaline batteries
(100 hours based on 10 second drive/vent cycles)
Drive Gas Sources: Nitrogen Cylinder, Compressed Air Cylinder, Air Compressor
Supply/Drive Line Connections: M Style Quick-Connect 1/4" NPT
Maximum Output Pressure: 125 psi (861 KPa) 250 psi (1724 KPa)
Maximum Input Pressure: 150 psi (1034 KPa) 300 psi (2068 KPa)
Manual Control
Button
Battery
Enclosure
Regulator
Pressure Gauge
Air Out
Air In
Drive Line
Supply Line
NOTE
A Nitrogen cylinder is ideal as it is
an inert, dry gas, best for pristine
samples and longer life expectancy
of the Control Unit.
Pneumatic Pump
Operating Principles:
Scan to View
407 Bladder Pump Video >
Scan to View
408 Double Valve Pump Video >

Model 464 Electronic Pump Control Unit User Guide
Page 2
User Flow Rates
LCD Contrast
About
ECU 464-125 Main
Preset Flow Rates
4:59 Min
99%
Timer: indicates the amount of time remaining before the Control
Unit automatically turns off. The Control Unit will automatically turn off after
5 minutes of being idle.
User Flow Rates
LCD Contrast
About
ECU 464-125 Main
Preset Flow Rates
4:59 Min 99%
Battery icon: represents the battery life remaining. Battery life is also
numerically displayed as a percentage to the left of the icon. The icon will flash
when the battery percentage is 0.
99
User Flow Rates
LCD Contrast
About
ECU 464 Main Menu
Preset Flow Rates
99
User Flow Rates
LCD Contrast
About
ECU 464 Main Menu
Preset Flow Rates
Arrows: left pointing arrow indicates there is at least one menu that can
be accessed using the left cursor key. Right pointing arrow indicates a sub-menu
exists for the active menu item, and can be accessed using the right cursor key
or OK button (moves to next item).
Figure 1-2 Electronic Control Unit LCD Display
User Flow Rates
LCD Contrast
About
ECU 464-125 Main
Preset Flow Rates
4:59 Min 99%
OK OK button: selects a highlighted menu item (also toggles between lower
and uppercase letters and pressure units). Press and hold for at least 3 seconds
to turn the Control Unit off. (However, this will not work in the Contrast Menu,
you can only use the left cursor key to exit the menu, and the plus/minus keys
to adjust the contrast.)
Cursor keys: navigate through the menus and menu items.
Plus/Minus keys: cycle through numbers and letters when editing or
creating new flow rates. Increase/decrease LCD display contrast. (Hold down
to scroll quickly through values).
Manual Control Valve:allows manual operation of the Control Unit. When
pushed the solenoid opens. See Page 8.
Air In: connection for the supply line from the compressed gas supply source.
(In-line filter is not required.)
Air Out: connection for the drive line from the pump.
Regulator: sets the pumping pressure. Turn clockwise to increase the pumping
pressure and counter-clockwise to decrease pressure.
Pressure Gauge: displays the pumping pressure.
Battery Enclosure: houses four (4) AA alkaline batteries.
1.4 LCD Display
1.3 Control Panel
NOTE
Pressing any key will turn the
Control Unit on (except Manual
Control button).
NOTE
The Control Unit will turn off
automatically after 5 minutes of
being idle, provided that cycling is
not active.
NOTE
Battery Life is 40,000 drive/vent
cycles or 100 hours at 10 second
drive/vent cycles.

Model 464 Electronic Pump Control Unit User Guide
Page 3
2.0 Control Unit Operation
2.1 Start Up
Press any button on the keypad to turn the Control Unit on. When first starting
the Control Unit with new batteries, or restarting after replacing the batteries,
the Control Unit will perform a self-test to identify any faults that may exist.
The start-up screen is shown first (Figure 2-1 Start-up Screen After Replacing
Batteries); following a short pause the main menu will be displayed.
Figure 2-1 Start-up Screen After Replacing Batteries
ECU 464 V2.000
Copyright (c) 2016
Solinst Canada Ltd.
[phone]
2.1.1 Main Menu
There are four main menu items for the Electronic Control Unit (Figure 2-2).
Preset Flow Rates: allows you to select a flow rate with predefined drive and vent
cycles (Low Flow, Medium Flow, or High Flow).
User Flow Rates: allows you to create user-defined flow rates, save flow rates,
select and edit saved flow rates.
LCD Contrast: enables you to adjust the brightness of the display.
About: will display information about the Control Unit, including firmware
version and Solinst contact information.
Figure 2-2 Model 464 Main Menu
User Flow Rates
LCD Contrast
About
ECU 464-125 Main
Preset Flow Rates
4:59 Min 99%
NOTE
The Control Unit does not come
with the batteries installed.
NOTE
Turning the Control Unit on,
displays the last screen shown at
the time of shut-down.

Model 464 Electronic Pump Control Unit User Guide
Page 4
2.2 LCD Contrast
To adjust the contrast of the LCD display, use the keys.
Figure 2-3 LCD Contrast
2.3 About
Selecting this menu item will display information about the Model 464 Control
Unit, including the installed firmware version.
Figure 2-4 About
Firmware: V2.000
Solinst Canada Ltd.
[phone]
www.solinst.com
About ECU 464-125
4:59 Min 99%
Set:
LCD Contrast
50%
4:59 Min 99%
2.4 Preset Flow Rates
Preset Flow Rates have predefined drive and vent times, they cannot be edited
or changed. There are three Preset Flow Rates:
Figure 2-5 Preset Flow Rate Menu Figure 2-6 Low Flow Rate Menu
Medium Flow
High Flow
Preset Flow Rates
Low Flow
4:59 Min 99%
Drive: 50s
Vent: 25s
Low Flow Preset
Start
4:59 Min 99%
PRESET FLOW RATES
Flow Drive Vent#
Low 50 s 25 s
Med 10 s 8 s
High 3 s 3 s

Model 464 Electronic Pump Control Unit User Guide
Page 5
When “Start” is highlighted, pressing OK will start the pumping cycle. When
the Control Unit is running the LCD will display the progress of the vent and
drive periods. Pressing the OK button when in running mode will stop the cycle.
Figure 2-7 Running Mode
Drive: 17 of 50s
Vent: 0 of 25s
Low Flow Preset
Stop
4:59 Min 99%
2.5 User Flow Rates
This menu allows you to select saved flow rates or create new flow rates.
Figure 2-8 User Flow Rates Menu
2.5.1 Saved Settings
Selecting “Saved Settings” will display a list of all previously created user-defined
flow rates (Figure 2-9 User Defined Saved Settings). Use the cursor keys to
navigate through the settings. To rearrange the order of the sites, use the '+'
key to move the highlighted setting up one position and the '-' key to move the
highlighted setting down one position.
Figure 2-9 User Defined Saved Settings
Create Settings
Preset Flow Rates
Saved Settings
4:59 Min 99%
W67 Farm 12
E89 Spill 2
A22 VOC 9
Saved Settings
W13 Landfill 34
4:59 Min 99%
NOTE
The Electronic Control Unit can
store up to 99 saved User Flow
Rates. User Flow Rates are saved to
a non-volatile memory so that they
will be retained if the batteries are
removed.

Model 464 Electronic Pump Control Unit User Guide
Page 6
Delete Settings
To delete the setting, use the left arrow key to highlight the delete icon and
press OK. After pressing OK, a prompt will be displayed to confirm the deletion.
Figure 2-10 Delete Saved Settings
W67 Farm 12
E89 Spill 2
A22 VOC 9
Saved Settings
W13 Landfill 34
Delete site
“W13 Landfill 34”?
YesNo
4:59 Min 99%
Edit Settings
Select a particular setting by pressing the right arrow or OK.
Figure 2-11 Saved Setting Information
To edit site information, use the cursor keys to navigate the fields and modify
them using the +/- keys. Holding the +/- keys will cycle through letters and
numbers quickly. The OK button toggles between upper and lower case letters.
The “Site” field has a fixed length of 16 characters.
Use the +/- keys to change the drive and vent times. The maximum drive/vent
time is 999 seconds (16.65 minutes).
Use the +/- keys to change the pressure setting. The maximum pressure is
125 psi (861 KPa) or 250 psi (1724 KPa), depending on the Unit. Pressing OK
toggles between psi and KPa. The pressure is automatically converted to the
new units. The displayed pressure does not control the actual pressure, it is only
a reminder of the pressure to adjust externally.
When finished editing the site settings, use the cursor key to select “Save
Changes” or “Start” to start pumping without saving the changes. When “Stop”
is selected, a display will appear asking if you would like to save changes. User
settings are saved to non-volatile memory so that they will be retained if the
batteries are removed. A maximum of 99 user settings are supported.
Figure 2-12 Editing Saved Setting Information
Site: W13 Landfill 37
Drive: 5s Set Pressure:
Vent: 5s 25psi
Saved Settings [1 of 10]
Start
4:59 Min 99%
Site: W13 Landfill 37
Drive: 5s Set Pressure:
Vent: 5s 25psi
Saved Settings [1 of 10]
Start Save Changes
4:59 Min 99%
NOTE
The maximum drive/vent time
is 999 seconds each and the
maximum pressure setting is 125
psi (861 KPa) or 250 psi (1724 KPa),
depending on the Unit.
NOTE
The displayed pressure does not
control the actual pressure, it is only
a reminder of the required output
pressure for that site.
NOTE
• 1 psi = 2.3 ft of water
• 1 KPa = 0.1 m of water

Model 464 Electronic Pump Control Unit User Guide
Page 7
2.5.2 Create Setting
To create a new setting, select “Create Setting” from the User Flow Rates
menu. Enter the new site name, drive/vent times, and pressure setting using
the cursor keys and +/- keys (see Edit Settings Section). Once you are finished
programming the settings, use the cursor key to highlight “Save” and press OK.
Figure 2-13 Creating a New Site
Site:
Drive: 0s Set Pressure:
Vent: 0s 0psi
Create Setting
Save
4:59 Min 99%
2.6 Automatic Drive/Vent Cycles
Select the desired setting. To start the drive/vent cycles, use the cursor key to
highlight “Start” and press OK. When the Control Unit is running, the LCD will
display the progress of the vent and drive cycles. Pressing the OK button when
in running mode will stop the drive/vent cycles.
Figure 2-14 Running Mode
Site: W13 Landfill 37
Drive:0 of 5s
Vent: 4 of 5 s
Saved Settings [1 of 10]
Stop
4:59 Min 99%
NOTE
While the drive/vent cycles are in
progress it is not possible to edit the
displayed site information or exit
the site menu. The only option is to
push OK, to stop the cycling.
NOTE
See Section 3.3 for help calculating
drive and vent times.

Model 464 Electronic Pump Control Unit User Guide
Page 8
2.7 Manual Drive/Vent Cycles
The 464 Electronic Control Unit can also be operated manually if preferred. It
provides an alternative if the battery power runs out.
To operate the Control Unit manually, set up and connect the pump, Control
Unit and compressed gas supply (see Section 3.2 Pumping Set Up). Apply the
compressed gas to the Control Unit.
Use the Regulator on the Control Unit to decrease or increase the pumping
pressure. To create a drive/vent cycle, use the Manual Control Button on the
Control Panel. When the Manual Control Button is pushed in, it opens the
solenoid, which allows the compressed gas to be applied to the pump. When the
button is released, it allows the unit to vent.
Figure 2-15 Model 464 Control Panel (125 psi)
Manual
Control Button
Regulator
Air Out
Air In
Battery
Enclosure
Pressure
Gauge
If the battery level is low, the battery warning will be displayed after attempting
to start a drive/vent cycle (Figure 2-16). The battery icon will also be flashing.
Press OK to clear the warning message. It will not be possible to start the vent/
drive cycling with a low battery. Replace the battery or operate the Control Unit
manually using the Manual Control Button to continue (see Section 2.7 Manual
Drive/Vent Cycles).
Figure 2-16 Low Battery Warning
User Flow Rates
LCD Contrast
About
ECU 464 Main Menu
Preset Flow Rates
Battery Low!
Please replace or
operate manually
OK
4:59 Min 0%
2.8 Battery Replacement
NOTE
The maximum output pressure of
the Electronic Control Unit is 125 psi
or 250 psi, depending on the Unit.
NOTE
The “Battery Low!” warning will
appear at about 0% battery level.
This is a conservative battery
level estimation based on normal
operation.
NOTE
If the Control Unit is not cycling
from drive to vent, check the battery
strength. The level should ideally be
maintained at 60% or higher.

Model 464 Electronic Pump Control Unit User Guide
Page 9
3.0 Pumping Instructions
3.1 Preparation
• The Control Unit is shipped without the batteries in the housing.
Install these before operating the unit. The Control Unit uses four
(4) AA alkaline batteries.
• Do not let water get inside the Control Unit. Always position the
Control Unit physically higher than the sample discharge and
wellhead. This helps avoid the siphoning effect, where gravity back-
flow of sample water can enter the Control Unit and cause damage.
• Do not release any pressure from the compressed gas supply until all
preparatory steps are complete.
Figure 3-1 Pumping Set Up
464
Electronic Control Unit
(125 psi)
Drive
Line
Sample
Line
Supply
Line
12 Volt
Compressor
Sample
Bottle
3.2 Pumping Set Up
1. Connect the Supply Line to the Air In fitting on the Control Unit. Attach the
other end to the compressed gas supply source.
2. Ensure your pump is installed to the desired pumping depth with the sample
and drive tubing properly connected.
3. Connect the Drive Line from the Air Out fitting to the quick connect on
the wellhead manifold (or air supply connection on a reel). The Drive Line
supplied, with the Quick Exhaust fitting, should always be used.
4. Press any button on the keypad to turn the Control Unit on.
5. Select the desired pumping settings.
6. Set the compressed gas supply regulator to no more than 150 psi for the
125 psi Control Unit, or 300 psi for the 250 psi Control Unit.
7. Start the selected drive/vent cycle.
8. Allow several cycles for water to reach the surface, then adjust the settings
as necessary.
Quick
Exhaust
NOTE
Always follow local health and
safety practices. Work safely!
NOTE
Keep Control Unit physically higher
than the sample discharge and
wellhead.
NOTE
While the drive/vent cycles are in
progress it is not possible to edit the
displayed site information or exit
the site menu when using a Saved
Setting.
NOTE
The Pressure Regulator on the
Control Unit may hiss during
operation; this is normal.
NOTE
You should always use the Drive
Line supplied with the Control
Unit, as it uses the Quick Exhaust
fitting, which is required for proper
operation.
NOTE
When using a Solinst 12 Volt
Compressor, or any other air
compressor, it is recommended
to use the 464 External Filter. See
Section 4 for more details.
NOTE
The Control Unit will turn off after
five minutes of being idle, provided
the Unit is not cycling. To turn the
Unit off, hold down the OK button
for at least 3 seconds.

Model 464 Electronic Pump Control Unit User Guide
Page 10
3.3 Calculating Drive and Vent Times
Bladder Pumps – Drive Time
• Submerge the sample line in a beaker/container of water
• Push the Manual Control Button on the Electronic Control Unit
• Count the seconds until the bubbles stop forming in the water
• This count is your Drive Time as when the air bubbles stop, the
bladder is fully compressed.
Bladder Pumps – Vent Time
• Start with 2 to 4 times the Drive Time
• Vent Time increases with shallower height of water above pump and
slower well recharge time
NOTE
No bubbles usually indicates
insufficient pressure.

Model 464 Electronic Pump Control Unit User Guide
Page 11
Double Valve Pumps – Drive Time
• Place the sample line into an empty collection container
• Push the Manual Control Button on the Electronic Control Unit
• Count the seconds until the water stops discharging from the sample
line
• Your Drive Time is %40 of this count
(i.e. the full count is the amount of time is takes to evacuate the entire
pump system of water, using drive gas. %40 of that count means the
drive gas will not enter the pump.)
Double Valve Pumps – Vent Time
• Start with 2 to 4 times the Drive Time
• Vent Time increases with deeper submergence and slower well
recharge
NOTE
You can start with the sample line
submerged. A steady stream of
bubbles and then water discharge
indicates sufficient pressure is being
used.

Model 464 Electronic Pump Control Unit User Guide
Page 12
3.4 Pump Optimization
Bladder Pumps
• Select and start your desired flow rate from the User Flow Rates
menu.
• If higher flow rate is required, stop the drive/vent cycle to allow
editing of the set up. Increase the drive time to increase the flow
rate.
• If increasing the drive time no longer increases the flow rate, increase
the vent time, then re-adjust the drive time to obtain the highest flow
rate.
Double Valve Pumps
• Select and start your desired flow rate from the User Flow Rates
menu.
• If a higher flow rate is required, stop the drive/vent cycle to allow
editing of the set up. Slowly increase the drive time to increase the
flow rate.
• If air is expelled, decrease the drive time.
• To further optimize the flow rate, increase or decrease the vent time
until the highest flow rate is achieved.
Once optimization has been done, remember to save the settings for subsequent
sampling events.

Model 464 Electronic Pump Control Unit User Guide
Page 13
4.0 Accessories
The 12 Volt Compressor connects to the Model 464 Electronic Pump Control
Unit using the 464 Supply Line. It is ideal for low flow applications of less than
100 ft (30 m) depths. It operates using 12 volt DC power source, such as a car
or truck vehicle battery, and comes with alligator clips. The compressor operates
at up to 125 psi and is equipped with a 2 US gallon (7.6 L) air tank which is
rated to 150 psi.
When using the 12 Volt Compressor, or any other air compressor with the
Model 464 Electronic Control Unit, it is recommended to use the External Filter.
The External Filter connects to the 464 Supply Line, and reduces the risk of
moisture entering the Control Unit.
See separate operating and installation instructions for the 12 Volt Compressor
and 464 External Filter.
Figure 4-1
12 Volt Compressor
(pt#106009)
Figure 4-2
464 External Filter
with Draining Valve
(pt#112832)
NOTE
When using a compressor, the drain
at the base of the tank should be
opened on a daily basis to prevent
moisture build-up.
NOTE
The Control Unit has a built-in
moisture filter to prevent moisture
from the supply line entering the
Control Unit, however, the External
Filter is recommended for use with
air compressors.
NOTE
Large compressors should be fitted
with a dryer to reduce moisture in
the supply lines.
Draining valve is closed
Draining valve is open

Model 464 Electronic Pump Control Unit User Guide
Page 14
5.0 Maintenance
Moisture in the Model 464 Electronic Pump Control Unit can shorten the
lifetime of some of its components. After each sampling session, compressed air
or nitrogen should be sent through the Pump Control Unit to ensure that any
build-up of moisture is purged and pushed out of the Pump Control Unit, as well
as through the Supply and Drive Lines.
Connect the compressed air/nitrogen gas source and let it cycle through the
Pump Control Unit with the drive line disconnected at the pneumatic pump. Set
a 10 second "Drive Time" and 2 second "Vent Time". This will create a pulse of
air to purge the system components. Maintain this purging cycle for 10 minutes.
If you are using the 464 External Filter, use the draining valve as necessary to
prevent water from entering the 464 Electronic Pump Control Unit.
Of note, sources of moisture may include:
1. The air compressor − follow the manufacture's suggestions for routine
maintenance for draining the air tank from a build-up of moisture.
2. Sample backflow − best practice is to maintain the Control Unit at a higher
elevation than the Drive Line connection at the wellhead. This height
difference reduces the potential for backflow into the Control Unit.
3. Precipitation − avoid direct exposure to precipitation or water splashing;
− ensure that your Control Unit is stored dry, inside and out.
4. Pump damage − leaks in tubing, a ruptured bladder, or damaged o-rings
can cause backflow. Regularly monitor pump condition and replace parts as
required.
NOTE
If moisture is observed exiting the
diffuser on the Drive Line exhaust
fitting when the pump is venting,
remove the pump from the well
and check for damage (o-rings,
bladder, lines).

Model 464 Electronic Pump Control Unit User Guide
Page 15
6.0 Storage
The Pump Control Unit should be purged with compressed air after use, as
described in Section 5.0, then stored in a dry condition.
Ensure the 464 External Filter is dry before storage.
If the Pump Control Unit is going to be stored for longer than a two month
period, the four alkaline batteries should be removed to avoid any potential
leakage.

Solinst Canada Ltd., 35 Todd Road, Georgetown, ON L7G 4R8
Fax: [phone] Tel: [phone]
[email protected]
www.solinst.com
High Quality Groundwater and Surface Water Monitoring Instrumentation