SpectraPure LiterMeter 4 User manual

2020-12-08
INSTALLATION AND OPERATING MANUAL
WARNING
Please read carefully before proceeding with installation. Failure to
follow any attached instructions or operating parameter may lead to
the product’s failure and possible damage to property.

COPYRIGHT 2020© BY SPECTRAPURE INC
ALL RIGHTS RESERVED
No part of this publication may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic, mechanical, photocopying,
recording or otherwise without the prior written permission of SpectraPure Inc.
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SpectraPure
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TABLE OF CONTENTS:
Thank You for your purchase of the SpectraPure®LiterMeter 4. With proper
installation and maintenance, this system will provide you with high quality
performance for years to come. All SpectraPure®products are rigorously tested
by us for safety and reliability. If you have any questions or concerns, please
contact our customer service department via e-mail at [email protected].
Introduction 4-5
Pairing The LM4 With Your Smart Phone Or Personal Device 6-7
Configuration Examples
Top-Off System For Multiple Tanks 8-9
A-B Dosing System 10-11
Water Exchange System 12-13
ATO + Water Exchange + Kalkwasser System 14-15
Using A Personal Device To Set Up LM4
Settings Page On A Personal Device 16-19
Calibrate Page On A Personal Device 20
Inputs Page On A Personal Device 21
System Page On A Personal Device 22-23
Setting Up LM4 Using Screen and Navigation Buttons
LiterMeter 4 Basic Operation 24
Navigating The LM4 24
Settings Page On The LM4 25-27
Calibrate Page On The LM4 28-29
Inputs Page On The LM4 30-31
External Remote Level Sensors 31
System Page On The LM4 32
Normal ReStart Sequence: (w/ Valid WiFI Creds) 33-34
Restart And Configuration Functions 35
Toggle the Use/No Use of a Router 36
Toggle Master/Remote Mode 37
Clear and Restore to Factory Settings 38
Clear WiFi Parameters 38
Quick Start: Pairing the LM4 with Your Phone 39-40
Using Remote Mode 41-42
Troubleshooting, Tips & Tricks 43
One Year Limited Warranty 44
Terms And Conditions 44

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Introduction:
The LiterMeter 4 is a programmable pump controller that controls up
to four dosing pumps (12VDC), individually and simultaneously. Ideally,
the pumps will be SpectraPure’s Peristaltic Dosing Pumps, but any small
12VDC pump can be used. A 12VDC/1A power supply is included and is
able to power all four SpectraPure pumps at once.
The LiterMeter 4 (LM4) may be laid flat on a shelf, set on its back, or Velcroed
to a wall or under a shelf. It can be orientated with the wires at the top or
at the bottom of the unit. When the orientation of the LM4 changes and
after a button is pressed, the display will flip so that it is readable, and the
5 buttons operate in the new orientation.
Functions are grouped in pages as “Settings”, “Calibrate”, “System”, and
“Inputs”. All parameters are updated and saved as soon as a button is
pressed. There is no need for an extra “do it” or “save it now” button.
A personal device (PD) such as a smartphone, tablet, PC or Mac may also
be used to control the LM4.
Settings:
Each pump can operate independently in one of several Modes: Off, On,
Daily, Dose, Once, Timer, or Delay.
Calibrate:
Easy-to-Follow Calibration Procedure using included 100 ml. graduated
cylinder.
System:
General settings including Inputs, Networks, and Calibrations.

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Four Outputs for Pumps:
Each of four outputs (identified as A, B, C, and D) is connected to a
separate pump. Each pump has full access to all pages, functions, and
inputs. Pumps are connected to the LM4 with male-to-male 3-conductor
cables. SpectraPure can provide cables of various lengths from 3 to 25
feet long. They are heavy-duty and shielded, and are recommended for
proper operation.
Four Inputs for Level Sensors:
All four inputs (labeled as 1, 2, 3, and 4) can connect to a variety of float
switches and water detectors (sensors). Any input can be “assigned” to
control any or all pumps. Sensors are connected to the LM4 with male-
to-male 3-conductor cables. SpectraPure can provide cables of various
lengths from 3 to 25 feet long. They are heavy-duty and shielded, and are
recommended for proper operation.
Wireless Connectivity:
The LM4 has wireless (WiFi–2.4Ghz) connectivity to allow changing
parameters using a PD. After the LM4 connects to a router, it will use an
IP address assigned by the router to send interactive pages to the PD. If a
router is not available, a private network is avalible to provide PD-to-LM4
communication.
Firmware Updates:
Updated firmware (new features and bug fixes) can be downloaded from
our website to your PD and then used to update the firmware in the LM4.

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Pairing the LM4 With Your Smart Phone or Personal
Device
Note: Components Needed for Pairing:
• Modem - Provides the Internet Connection
• Router - WiFi Transceiver (transmit/receive data packets)
• SpectraPure LM4 Liter Meter Pump Controller
• Personal Device: Desktop Computer, Laptop, Tablet or Smart Phone.
To allow for convenient local remote control of the LM4, and to capture
real local time, it will be necessary to create a WiFi interface connection
to a Personal Device (PD), which will provide programming and timing
control for the LM4.
Each LM4 has its own unique 4 digit SSID number, which is used to identify
the LM4 while pairing your personal device with and maintaining a local,
router based, WiFi network connection.
When the LM4 is powered on, the first screen will display the firmware
version and the network ID number unique to that LM4 (see example
below) SSID = LM4-6680).
The Following Steps will Guide you through
the Personal Device Pairing: Please note that
the Pairing Window interval is 6 minutes.
(Restart as needed.). Once powered on, the
LM4 will transmit a unique onboard WiFi
signal. Connecting your PD to this signal
will allow you to identify and store your
local router’s network name and SSID as the
connection bridge between your PD and
the specific LM4 you have paired.
Pairing your personal device with your LM4:
First, power on the LM4 and note the unique SSID,
displayed as ID: LM4-XXXX. (Ex: LM4-6680).
1. Next, open the WiFi Settings on your smart phone or other (personal
device) PD.
2. Select the LM4-SSID from the displayed WiFi network list. This will
connect your PD to the LM4’s unique WiFi address. The next steps will
enable the LM4 connection to your local router.
3. Now, open a web browser on your PD and type in the following URL
(IP address) 192.168.4.1

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4. The Configure WiFi page should display on your PD’s screen
(see Fig. 1 desktop computer).
5. Click on or tap the blue Configure WiFi button. This will bring up the list
of local networks in your area.
6. From the WiFi network list, select your local router SSID (name) and
enter your WiFi password. (as seen in Fig. 2 laptop)
7. Once you have selected your network and entered your password,
click on or tap the blue Save button to record and Save your router’s
WiFi credentials into the LM4.
8. A confirmation screen will appear on your PD. (see Fig. 3). Important
Note: The router will assign an IP address to the LM4.
9. In WiFi Settings, be sure the local router is now selected. Use the
assigned IP address in your PD’s browser to control the LM4 from your
Personal Device. On the PD, you should now see a screen similar to Fig.
4. For more details on pairing the LM4, see “Quick Start: Pairing the LM4
with Your Phone”.
FIG. 1
FIG. 2
FIG. 3
FIG. 4

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Top-Off System for Multiple Tanks:
This is the basic Top-Off System, pulling water from a reservoir
to replenish evaporation in an aquiarium.
There is one pure water supply for two separate tanks
(three are possible).
Each Pump is controlled by its own level sensor, plus a
common Sensor monitors the pure water reservoir.
Parts List:
1x LM4 & Power Supply
1x Pump and 1x Sensor for each tank
1x Sensor for Reservoir
2x EXT Cables, Length as Required, for each tank
1x EXT Cable for Reservoir Sensor
Plumbing Connections:
Connect tubing from Pure Water to Pump “A”.
Connect tubing from Pump “A” to Tank “A”.
Connect tubing from Pure Water to Pump “B”.
Connect tubing from Pump “B” to Tank “B”.
Electrical Connections:
Connect one end of an EXT Cable (any length) to
a Level Sensor (Tank “A”) and the other end to Input “1”.
Likewise,
Connect a Level Sensor (Pure Water) to Input “3”.
Connect Pump to Pump “A”.
Connect a Level Sensor (Tank “B”) to Input “4”.
Connect Pump to Pump “D”.
Inputs Settings:
If Input#1(Tank “A”) is WET, then “A” is OFF
If Input#3(Pure Waterl) is DRY, then “A” & “D” are OFF
If Input#4( Tank “B”) is WET, then “D” is OFF
EXT Cables are available in 3 ft, 6 ft, 12 ft, and 25 ft lengths.

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PUMP
A B C D
1 2 3 4
INPUT
LEVEL SENSOR
(INPUT “3”)
LEVEL
SENSOR
(INPUT “4”)
LEVEL
SENSOR
(INPUT “1”)
PURE WATER
TANK “A”
PUMP “A”
PUMP “D”
TANK “B”
EXT CABLES
EXT CABLES
EXT CABLE
LITERMETER 4
TO PUMP
“A”
TO PUMP “D”
TO INPUT “1”
TO INPUT “4”
TO INPUT
“3”
IF INPUT “3” SHOWS “DRY”— PUMPS A & D ARE OFF
IF INPUT “1” SHOWS “WET”— PUMP A IS OFF
IF INPUT “4” SHOWS “WET”— PUMP D IS OFF
2-TANK INDEPENDENT TOPOFFS USING LITERMETER 4
Top-Off System for Multiple Tanks

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A--B Dosing System:
This is the basic Dosing System, pulling water from a
nutrient reservoir to feed an aquiarium.
Here there are two such systems (there could be four).
Each Pump is set to dose milliliters per day.
Low reservoir Sensors will shut BOTH pumps off when
either reservoir runs dry.
Parts List:
1x LM4 & Power Supply
2x Pumps
2x Sensors
4x EXT Cables, Length as Required
4x Tubing, 1/4”, Length as Required
Plumbing Connections:
Connect tubing from reservoir “A”to Pump “A”.
Connect tubing from Pump “A” to sump.
Connect tubing from reservoir “B”to Pump “B”.
Connect tubing from Pump “B” to sump.
Electrical Connections:
Connect one end of an EXT Cable (any length) to
a Level Sensor (Res “A”) and the other end to Input “1”.
Likewise:
Connect a Level Sensor (Res “B”) to Input “2”.
Connect Pump to Pump “A”.
Connect Pump to Pump “B”.
Inputs Settings:
If Input#1(Reservoir “A”) is DRY, then “A” & “B” are OFF
If Input#2(Reservoir “B”) is DRY, then “A” & “B” are OFF
EXT Cables are available in 3 ft, 6 ft, 12 ft, and 25 ft lengths.

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PUMP
A B C D
1 2 3 4
INPUT
LEVEL SENSOR
LEVEL SENSOR
RESERVOIR “B”
RESERVOIR “A”
EXT CABLES
EXT CABLES
LITERMETER 4
TO PUMP
“A”
TO PUMP
“B”
TO INPUT
“1”
TO INPUT
“2”
BOTH PUMPS STOP WHEN EITHER RESERVOIR RUNS DRY
IF INPUT “1” SHOWS “DRY”— PUMPS A & B ARE OFF
IF INPUT “2” SHOWS “DRY”— PUMPS A & B ARE OFF
A-B DOSING USING LITERMETER 4
SUMP
A--B Dosing System

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Water Exchange System:
This is a Water Exchange System that is protected on both
ends with Level Sensors.
Fresh Salt Water is dosed to the sump periodically.
An equal amount is dosed from the sump to drain.
Both Pumps will stop if either the reservoir is dry or the sump
has reached a critical level.
Parts List:
1x LM4 & Power Supply
2x Pumps
2x Sensors
4x EXT Cables, Length as Required
4x Tubing, 1/4”, Length as Required
Plumbing Connections:
Connect tubing from reservoir “A”to Pump “A”.
Connect tubing from Pump “A” to sump.
Connect tubing from reservoir “B”to Pump “B”.
Connect tubing from Pump “B” to sump.
Electrical Connections:
Connect one end of an EXT Cable (any length) to
a Level Sensor (Fresh Salt Water) and the
other end to Input “1”.
Likewise,
Connect Pump to Pump “B”.
Connect a Level Sensor (Sump) to Input “3”.
Connect Pump to Pump “D”.
Inputs Settings:
If Input#1(Fresh Salt Water) is DRY, then “B” & “D” are OFF
If Input#3(Critical Sump Level) is WET, then “B” & “D” are OFF
EXT Cables are available in 3 ft, 6 ft, 12 ft, and 25 ft lengths.

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PUMP
A B C D
1 2 3 4
INPUT
FRESH SALT WATER
LEVEL SENSOR
LEVEL
SENSOR
OUT TO
DRAIN
EXT CABLES
LITERMETER 4
TO PUMP
“D”
TO PUMP
“B”
PUMP
PUMP
TO INPUT
“1”
TO INPUT
“3”
SUMP
EXT CABLES
IF INPUT 3 SHOWS “WET”, THEN THE PUMPS CONNECTED TO “B” AND “D” ARE OFF.
IF INPUT 1 SHOWS “DRY”, THEN THE PUMPS CONNECTED TO “B” AND “D” ARE OFF.
PUMPS “B” AND “D” ARE BOTH SET TO “DAILY” WITH EQUAL TOTALS.
IT IS ALSO POSSIBLE TO RUN THE PUMPS FOR PART OF A DAY VIA “TIMER” SETTING.
EXTENSION CABLES ARE AVAILABLE IN 3 FT, 6 FT, 12 FT, AND 25 FT LENGTHS.
WATER EXCHANGE USING LITERMETER 4
Water Exchange System

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ATO + Water Exchange + Kalk System:
This is a 4-Pumps + 4-Inputs example demonstrating the
comprehensive water level control possible with the LM4.
Parts List:
1x LM4 & Power Supply
4x Pumps
3x Sensors
1x Wet Floor Sensor (available soon)
8x EXT Cables, Length as Required
8x Tubing, 1/4”, Length as Required
Plumbing Connections:
Connect tubing from DI Water to Pump “A”.
Connect tubing from Pump “A” to sump.
Connect tubing from Fresh Salt Water to Pump “B”.
Connect tubing from Pump “B” to sump.
Connect tubing from sump (position end 2” below normal
sump level) to Pump “C”.
Connect tubing from Pump “C” to drain.
Connect tubing from Kalkwasser to Pump “D”.
Connect tubing from Pump “D” to sump.
Electrical Connections:
Follow the diagram.
Sub-systems have been described previously.
Inputs Settings:
If Input#1(Fresh Salt Water) is DRY, then “B” & “C” are OFF
If Input#2(Wet Floor Sensor) is WET, then ALL PUMPS OFF
If Input#3(Normal Sump Level) is WET, then “A” is OFF
If Input#4(Critical Sump Level) is WET, then ALL PUMPS OFF
EXT Cables are available in 3 ft, 6 ft, 12 ft, and 25 ft lengths.

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PUMP
A B C D
1 2 3 4
INPUT
DI WATER FRESH SALT WATER KALKWASSER
LOW WATER LEVEL
NORMAL HIGH WATER LEVEL
CRITICAL HIGH WATER LEVEL
TANK
PUMP “A”
PUMP “C”
PUMP “D”
PUMP “B”
LITERMETER 4 CONNECTIONS EXAMPLE IF INPUT “1” (FRESH SALT WATER) SHOWS “DRY”— PUMPS B & C ARE OFF IF INPUT “2” (WET FLOOR SENSOR) SHOWS “WET”— ALL PUMPS ARE OFF IF INPUT “3” SHOWS “WET”— PUMP A IS OFF IF INPUT “4” SHOWS “WET”— ALL PUMPS ARE OFF
LITERMETER 4
OUT TO DRAIN
LEVEL SENSOR
(INPUT “1”)
LEVEL SENSOR
(INPUT “3”)
LEVEL SENSOR
(INPUT “4”)
WET FLOOR SENSOR
(INPUT “2”)
ATO + Water Exchange + Kalk System

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Settings Page on a Personal Device (PD):
Settings Page:
Pump A is OFF.
All Pumps are Disabled
Settings Page:
Pump A is ON
and Running at
100 ml/min.
Settings Page:
Pump A in DAILY Mode
Touch the white data entry box
next to “New Rate:”.
Using the keypad that appears,
enter the Flow Rate. Tap “Update”
to store the Flow Rate.
As above, enter the desired Liters
per day to be delivered.
Enter a value for Cycles per day.
The LM4 will “round down” to a
preset value for “New Cycles”.
This is the first page you see after connecting to the LM4.
Select any of the four pumps to set up and save their parameters.
Tap “Calibrate”, Inputs”, or “System” to move to that page.
Tap “ALL PUMPS OFF” to toggle to “ALL PUMPS ENABLED” and back.

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Settings Page:
Pump C in ONCE Mode
Touch the white data entry
box next to “New Rate:”.
Using the keypad that appears,
enter the new Flow Rate. Tap
“Update” to store the Flow
Rate.
As above, enter the desired
“New Dose:” to be delivered.
The dose will be delivered
when “START NOW” is tapped.
Settings Page:
Pump B in DOSE Mode
Touch the white data entry box
next to “New Rate:”.
Using the keypad that appears,
enter the new Flow Rate. Tap
“Update” to store the Flow Rate.
As before, enter the desired
“New Dose:” to be delivered.
Enter a numeric value, followed
by an “m” (minutes - at least 2),
an “h” (hours), or a “d” (days - up
to 28) for “New Period:”.
The LM4 will “round up” to a
preset value for “New Period:”.
See “PreSet Periods and Cycles”

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DOSE Periods: DAILY Cycles:
2 mins 720 per day
3 mins 480 per day
4 mins 360 per day
6 mins 240 per day
10 mins 144 per day
15 mins 96 per day
30 mins 48 per day
1 hour 24 per day
2 hours 12 per day
3 hours 8 per day
4 hours 6 per day
6 hours 4 per day
8 hours 3 per day
12 hours 2 per day
1 day
2 days
3 days
4 days
5 days
6 days
7 days
14 days
21 days
28 days
PreSet Periods and Cycles:
Settings Page:
Pump A in TIMER/DOSE Mode
First, if a Mode is already
selected, tap it to deselect it.
Then, enter daily Start and Stop
Times (24hr format). A “space”
can be entered in place of the
“colon”. Here, we have set the
Start Time to 10:00PM and the
Stop Time to 6:00AM.
Then select the Mode.
That Mode for this Pump will be
active between the Start Time
and the Stop Time, every day,
as long as this TIMER page is
displayed for this Pump and the
Mode is selected here.

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Settings Page:
Pump A in DELAY/DAILY Mode
First, if a Mode is already selected, tap
it to deselect it.
When no Mode is selected, the current
time is displayed as a useful template
to modify and enter a future time and
date. Use the exact format as shown.
Then select the Mode.
Time Remaining is the countdown
until activation, when that Mode
will be activated “forever”.
Here, a future time was set, and 29+
days is counting down.
Once that time/date has been
reached, the current time will again be
displayed and that Mode activated.

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Calibrate Page:
Tap “Begin” to Initialize.
When ready, tap “Start” under
“Fill 100 ml at Maximum Rate:”
Continue Calibrate Sequence:
Stop Max Fill
Start Min Fill
Stop Min Fill
Verify Cal Stats
Return to “Begin”
Calibrate Page on a PD:
“Calibrate” will prepare the “Current Pump” for calibration. See
“Calibrate Page on the LM4” for more details. You can have All
Pumps Off and still perform the Calibration when using the PD.
It is possible that a particular pump may not operate at the lowest default
speed used by the Calibrate function. You can use the and buttons
on the LM4 (only, not available on the PD) and only when you see “Stop
100ml? >” while measuring the minimum rate. Adjust the speed UP until
the pump starts to run. There is a 5-second delay between button presses
(time to empty the measuring device).
You may have a pump that can run slower than the default speed. Adjust
the speed DOWN until the pump stops, then UP until it starts to run again.
This “alternate minimum” is reset to factory default if “Clear and Restore to
Factory Settings” is executed.