Super Systems eFlo 2.0 User manual

eFlo 2.0
ELECTRONIC GAS FLOW METER
OPERATIONS MANUAL
Super Systems Inc.
7205 Edington Drive
Cincinnati, OH 45249
513-772-0060
Fax: [phone]
www.supersystems.com

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Super Systems Inc.
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Super Systems Inc.
USA Office
Corporate Headquarters:
7205 Edington Drive
Shipping Address:
7245 Edington Drive
Cincinnati, OH 45249
Phone: [phone]
http://www.supersystems.com
Super Systems Europe
Unit E, Tyburn Trading Estate,
Ashold Farm Road, Birmingham
B24 9QG
UNITED KINGDOM
Phone: [phone]
http://www.supersystemseurope.com
Super Systems México
Sistemas Superiores Integrales S de RL de CV
Acceso IV No. 31 Int. H Parque Industrial
Benito Juarez
C.P. 76120 Querétaro, Qro.
Phone: [phone]
http://www.supersystems.com.mx
Super Systems China
No. 369 XianXia Road
Room 703
Shanghai, CHINA
200336
Phone: [phone]
http://www.supersystems.cn
Super Systems India Pvt. Ltd.
A-26 Mezzanine Floor, FIEE Complex,
Okhla Indl. Area, Phase –2
New Delhi, India 110 020
Phone: [phone]
http://www.supersystemsindia.com

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Table of Contents
Introduction..................................................................................................................................... 5
Model Numbers........................................................................................................................... 5
Safety Information....................................................................................................................... 6
Specifications.................................................................................................................................. 6
Installation Procedure .................................................................................................................... 7
Mechanical Installation ............................................................................................................... 7
Clearance................................................................................................................................. 7
Mounting.................................................................................................................................. 7
Plumbing.................................................................................................................................. 7
Thread Sealants:...................................................................................................................... 7
Connection Tightness: ............................................................................................................. 8
Leak Checking ......................................................................................................................... 8
Electrical Connections ................................................................................................................ 9
Initial Network Configuration ......................................................................................................... 9
nLocateIP Method ....................................................................................................................... 9
Modbus Registers ..........................................................................................................................11
Keypad Operating Procedure.........................................................................................................12
Keypad Basic Functions .............................................................................................................13
View Totalized Flow ................................................................................................................13
Reset Totalized Flow ..............................................................................................................13
Switch between Auto and Manual Modes...............................................................................13
Adjust Flow Rate (Manual Mode Only)....................................................................................14
Display Setpoint......................................................................................................................14
Adjust Setpoint........................................................................................................................14
Display Alarm .........................................................................................................................14
Enter Menu .............................................................................................................................14
Keypad Setup Menu System.......................................................................................................14
Setup Menu Keypad Functions ...............................................................................................14
Exiting the Menu System ........................................................................................................17
Menu System Details..................................................................................................................17
Touchscreen Operating Procedure................................................................................................19
Touchscreen Basic Functions ....................................................................................................20
View Active Alarms .................................................................................................................20
View Totalized Flow ................................................................................................................20

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Reset Totalized Flow ..............................................................................................................20
Switch between Auto and Manual Modes...............................................................................21
Adjust Flow Rate (Manual Mode Only)....................................................................................21
Adjust Setpoint........................................................................................................................21
Settings Menu.........................................................................................................................22
Instrument Information & Diagnostics Menu.........................................................................22
Basic Configuration Menu ..............................................................................................23
Basic Configuration - Flow Alarm Menu........................................................................23
Network Configuration - Serial Communications Menu................................................24
Network Configuration - Ethernet Communications Menu ...........................................24
Instrument Configuration - Gas Menu............................................................................25
Instrument Configuration –Addition Options Menu.......................................................25
Maintenance...................................................................................................................................26
Web Interface.................................................................................................................................27
Using the Web Interface.............................................................................................................27
Main Screen............................................................................................................................28
Instrument Information ..........................................................................................................28
Diagnostics .............................................................................................................................29
Basic Configuration ................................................................................................................29
Instrument Configuration .......................................................................................................31
Read/Write Registers .............................................................................................................32
Network Configuration ...........................................................................................................32
Alarms............................................................................................................................................34
Warranty.........................................................................................................................................35
Revision History .............................................................................................................................36
Appendix 1: Menu Option Tables....................................................................................................37
Appendix 2: Verification Procedures..............................................................................................38
Calibration Verification...............................................................................................................38
Sensor Accuracy Verification .....................................................................................................38
Appendix 3: Startup Procedures....................................................................................................39

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Introduction
The eFlo 2.0 instrument is Super Systems Inc.’s latest electronic flow meter. eFlo works by
measuring the differential pressure (the difference in pressure of a gas at two points) of a gas
flowing through a specially designed opening in the gas flow assembly. Based on properties of
the flowed gas, the differential pressure can then be used to calculate the flow rate of the gas.
eFlo 2.0 uses a mathematical curve to calculate the flow of a gas and features built-in
diagnostic information, flow rate and pressure alarms, and a flow rate totalizer. The automatic
meter can be set to automatic or manual valve control mode. Automatic valve control mode
allows the eFlo to use a flow rate or valve position setpoint as a basis for adjusting the valve
(and thus the gas flow) using a built-in valve motor. The setpoint can be programmed manually
by the user or obtained by the instrument from a 4-20 mA analog signal or a digital signal over
RS485. Manual valve control mode allows the user to manually set the valve position through
the interface.
eFlo 2.0 is built for use in harsh industrial environments.
This manual also covers configuration and control using the eFlo web interface.
Model Numbers
eFlo2.0 model numbers provide details about your eFlo device’s interface type, valve type, and
gas type. This is useful information to have available when contacting SSi for technical support.
Interface Type Valve Type
KP= Keypad Interface A=Automatic Valve
TS=Touchscreen Interface M=Manual Valve
Gas Type
AIR –Air H2 - Hydrogen
ARG –Argon MULT - Multiple Gasses
C3H8 –Propane N2 - Nitrogen
CH4 –Methane N2O - Nitrous Oxide
CO2 - Carbon Dioxide NAT - Natural Gas
CRS - Coarse (AutoGen Special) NH3 - Ammonia
DA - Disassociated Ammonia PROY - Propylene Gas (C3H6)
ENDO - Endothermic Gas TRM - Trim (AutoGen Special)
Example:
141.KP.M.ENDO
Indicates eFlo 2.0
Keypad Interface
Manual Valve
Endothermic Gas

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Safety Information
Observe the following safety requirements when configuring, operating, servicing, or
maintaining the eFlo instrumentation. If the device is used in a manner not specified in this
manual, protection provided by the equipment may be impaired.
WARNING!
The eFlo instrument is NOT guaranteed to provide gas shutoff, nor is it designed to do so. For
reliable gas shutoff, incorporate a valve that provides positive gas shutoff. Ensure that all gas
flow equipment is in compliance with National Fire Protection Agency (NFPA) requirements,
including those found in NFPA 86. Failure to follow these requirements could result in
flammable gas leaks into the unit.
Ensure that the air and gas mixture ratio settings are within the specifications provided in this
manual. Exceeding specified values could result in hazardous conditions.
Specifications
The specifications for the eFlo instrument are as follows.
Weight
10.4 lbs (4.76kg)
Power Required
24 VDC@ 750 mA
Enclosure Rating
IP10
Accuracy
4%
Repeatability
2%
Turndown Ratio
6:1
Medium Temperature Limits
-10°F to 125°F (-20°C to 51°C)
Ambient Temperature Limits
-10°F to 125°F (-20°C to 51°C)
Maximum Altitude
N/A
Flow Output Signal (Linear)
4-20 mA
Maximum Output Signal Load
500Ω
Input Control Signal (Linear)
4-20 mA
Communications
RS485, Ethernet, USB
Communication Protocol
Modbus RTU
Flow Meter Pressure Limits
The installed sensors will be determined by SSI
based on pressure specifications & turndown
requirements.
See the Calibration Report included with your
product for more details.
2 psig sensors:
2 psig usable limit
4 psig overpressure limit
5 psig sensors:
5 psig usable limit
10 psig overpressure limit
Table 1 - eFlo Specifications

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Installation Procedure
Installing the eFlo unit consists of a mechanical installation and an electrical installation. The
mechanical installation includes mounting as well as inlet and outlet piping. The eFlo unit will
be assembled prior to shipment. Before beginning installation:
Ensure that all fittings and connections are tightly secured prior to beginning
installation.
Ensure that all expected components are present. Contact SSi at [phone] if you
have questions.
Mechanical Installation
Clearance
When installing the device, leave enough room on either side (3” is recommended) to allow
users to adjust, remove and replace the existing fittings. Also ensure that the device is installed
in a location that allows for easy access to the power connection.
Mounting
Proper mounting is essential for the successful operation of the eFlo instrument. Please use
the mounting template (included with the eFlo unit or available at
www.supersystems.com/eflo/) to ensure accuracy.
The eFlo can be supported by pipe without using the bolt holes if desired. However, if mounting
in this manner, ensure that the pipe is rigid enough to support the weight of the meter.
When installing the device, the shutoff valve or blocking solenoid should ideally be located
before the meter.
Plumbing
The outlet openings measure 1.25” NPT. Use of bushings or reducers at these connections is
acceptable as long as the smallest pipe diameter is not smaller than the installed orifice plate.
See certification for that meter to determine actual orifice diameter. Contact SSi at (513) 772-
0060 for questions about pipe sizing.
Thread Sealants:
Teflon or natural gas-rated pipe tape or pipe dope is acceptable for non-corrosive gases. For
corrosive gases, pipe tape is not recommended, unless the manufacturer specifies that it is
rated for gas(es) being flowed through the meter.
NOTE: When installing the device, ensure that excessive tape or dope does not fall into the
meter, as this can damage sensors, plug sensor lines, prevent flow through the meter, and
prevent the device from functioning properly.

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Connection Tightness:
After thread sealant is applied, tighten all connections by hand (3.5-6 turns, depending on pipe
size), then use the following Turn Past Finger Tightness guide to complete the tightening
process:
NPT Fitting Size
TPFT (Turns Past Finger Tightness)
1/8”
1.5-2.5
1/4”
1.5-2.5
3/8”
1.5-2.5
1/2"
1.5-2.5
3/4"
1.5-2.5
1”
1-2.5
1 1/4"
1-2.5
1 1/2"
1-2.5
2”
1-2.5
Table 2- TPFT Guide
NOTE: Never loosen a fitting for correct alignment. Doing so will prevent the thread from
maintaining a proper seal.
CAUTION: Do not overtighten the connection. Overtightening can damage threads, pipes,
fittings, and the eFlo device.
Leak Checking
Before operation, all plumbed components should be leak checked. To avoid damage to
sensors and other components, check with SSi for the maximum pressure for the sensor in
your eFlo device (the installed sensor may vary based on the parameters needed in your
particular application).
IMPORTANT!
Ensure that the inlet pressure is within specified parameters for your eFlo unit.

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Electrical Connections
The eFlo meter requires a 10-pin connector and cable for power and communications. The eFlo
is supplied with a 20 ft cable. The wires are color-coded per the table below. Contact SSi for a
longer cable is required.
Wire-In Color
Signal
Type
Description
Red
+ VDC
Power Supply (24 VDC @ 750mA)
Black
- VDC
Green / Black Stripe
+ RS485
Communications Signal Provided by Modbus Over Serial
Red / Black Stripe
- RS485
White / Black Stripe
RLY
Normally Open Relay Contact (24 VDC)
Orange / Black Stripe
RLY
Orange
+ mA
Analog Out - Output Flow Signal (4 - 20 mA)
Blue
- mA
Green
+ mA
Analog In - Input Setpoint Signal (4 - 20 mA)
White
- mA
Table 3 - Electrical Connections
Initial Network Configuration
This section is intended for use by persons familiar with Ethernet network setup.
In order to work correctly, the eFlo unit must be properly configured for the network to which it
is connected.
NOTE: By default, the IP address of the eFlo unit is static, and Dynamic Host Configuration
Protocol (DHCP) is disabled. These settings can be adjusted through SSi’s nLocateIP software
(see below), the web interface (Using the Web Interface), or through the eFlo keypad.
If you already know the IP address of the web interface, skip to the Error! Reference source not
found.. The network configuration is described in this section.
The eFlo unit will use a default IP address of 192.168.1.200. If the unit is using the default IP
address, that IP address can be used to access the web interface (for more information on the
web interface, refer to the Error! Reference source not found. section.
The IP address of the unit can also be found by using SSi’s nLocateIP software. This method is
described in the following subsection.
nLocateIP Method
Once the unit is connected to the network, you should be able to locate it using SSi’s nLocateIP
software. This program is available from SSi. To use it in locating the unit on the network, follow
these steps on a Windows-based PC:
1. Ensure that the unit is connected to the network.
2. Open the nLocateIP program

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3. Once the program opens, click the Search button. The program will begin searching for SSi
devices connected to the network.
4. Look for identifying text in the list of instruments. It includes the type of instrument and
serial number. It also provides the IP Address information for the sensor.
5. Click the Configure button and choose the sensor to change its IP Address settings.
6. Click on the device description to highlight it and click the OK button. This will display the
device’s IP settings, which can be changed to match the network to which it’s connected.

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The sensor’s IP Address settings will be changed immediately to allow it to communicate. If you
are unable to find the unit in the list of devices, it is possible that a network setting (such as
subnet mask) may be different, the unit may be connected to a different network, or the unit
may not be powered on. SSi recommends consulting an IT engineer or network administrator. If
needed, call SSi at [phone].
Modbus Registers
The eFlo Modbus registers are as follows.
Modbus Register
Number
Description
16
Actual Flow
17
Flow Sensor mA Input Value
18
Flow Setpoint
19
Decimal Place for Display of Flow and Setpoint
20
Instrument Modbus Address
21
Not Used
22
Not Used
23
Not Used
24
Not Used
25
Not Used
26
Not Used
27
Not Used
28
Air Flow
29
Not Used
30
Not Used
31
Not Used
32
Not Used
33
Not Used
34
Not Used
35
Auto (1) / Manual (0) for Control
36
Not Used

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Modbus Register
Number
Description
37
Reset Totalizer Values to Zero
38
Not Used
39
Totalizer Units (0 to 9999)
40
Totalizer in 10,000s (0 to 9999 -> 0 to 99,990,000)
41
Totalizer in 10,000,000s (0 to 9999 -> 0 to 999,900,000,000)
Table 4 - Modbus Registers and Descriptions
IMPORTANT!
See Appendix 3 for recommended startup procedures involving Zero Tare, Max Tare, and
Altitude Adjustment. Following these procedures will provide optimal accuracy and control.
Keypad Operating Procedure
The eFlo system is equipped with a pressure and flow rate alarm (high and low), flow rate
totalizer, and integrated valve control. The unit can be operated in either manual or automatic
mode for flow rate control. This section of the manual provides an explanation of the basic
menu navigation through the keypad as well as how the unit is operates including: valve control
modes, flow limit control, flow alarming, flow totalizing, and programming of the unit.
IMPORTANT!
For best long term results, it is recommended that pressure be maintained on the flow meter
at all times. Pressure can be maintained when the shut off solenoid/valve is downstream
from the outlet of the meter. This will ensure long term calibration and accuracy.
The figure on the following page shows the layout of the flow control panel on the Keypad eFlo
2.0 unit. An explanation of the panel’s components is provided as well.The panel layout will be
referenced further in this section.

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Figure 1 - eFlo 2.0 LED Flow Control Panel Layout
A –LED display
By default, the LED display is used to display the current flow.
The LED display can also be used to show the totalizer value,
current setpoint, and Setup menu options with associated
settings. During active alarms, alarm status messages may
also be displayed.
B –Status indicators
These four lights come on in various situations:
Auto: When lit, the eFlo is in Auto valve control mode.
When not lit, the unit is in Manual valve control mode.
Alarm:When lit, an alarm is active.
See Alarms section for more information.
Open: When lit, the valve is driving open.
Close: When lit, the valve is driving closed.
C –Totalizer button
D –Up button
E –Setpoint button
F –Return button
G –Down button
H –Select button
I –Setup button
Keypad Basic Functions
This section explains the most basic functionality of the eFlo 2.0. Additional options are
available in the Setup menu and are explained in more detail in subsequent sections.
View Totalized Flow
To view totalized flow, push . Hold the button
down for a few seconds to show the full totalized
numeric value by scrolling left.
Reset Totalized Flow
To reset the totalized flow, push and hold for five seconds. Then push to confirm that
the value has been reset to zero.
Switch between Auto and Manual Modes
To switch between Auto and Manual modes, hold for
five seconds. When in Auto mode, the Auto light (B) will
The flow rate totalizer records
cumulative flow rates measured
by the meter. The totalizer is
active at all times. The maximum
totalized value is 999,999,999,999
(in any unit of flow measurement).
In Auto mode, the motorized
valve will be automatically
adjusted based on setpoint.

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be active. When in Manual mode, the Auto light (B) will not be active.
Adjust Flow Rate (Manual Mode Only)
To adjust the flow rate while in Manual mode, use and .
Display Setpoint
To display the current setpoint, press .
Adjust Setpoint
To adjust the current setpoint, press and hold and use and .
NOTE: Setpoint can also be adjusted using one of the following methods:
1. Remote analog signal (4-20mA)
2. Remote digital signal with Modbus serial communications over RS485 –Register 18
3. Web interface (refer to Main Screen)
It is important to note that the remote analog setpoint setting overwrites any manual setting.
Therefore, if manual control of setpoint is desired, ensure that there is no external signal
overwriting the manual setting.
Display Alarm
When an alarm is active, the Alarm light will
turn on. A warning message will be displayed
on the LED screen as shown. Setpoints for
these alarms are set through a Modbus
interface or by using the eFlo Web Interface.
See Alarms section for more information.
Enter Menu
To enter the Setup menu, hold for five
seconds.
Keypad Setup Menu System
To enter the Setup menu, hold for five seconds.
Setup Menu Keypad Functions
When you first enter the setup menu, the eFlo will display p1.00 (the current menu option).
LED Display
Alarm
unPr
Under pressure (factory set)
Hi.Pr
High pressure (factory set)
shut
Low flow issue (factory set)
hiLN
Valve is at its max open
position (factory set)
Lo.FL
Low flow (user defined)
Hi.FL
High flow (user defined)
Lo.Pr
Low pressure (user defined)

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To navigate the setup menu, use and to move vertically
through the menu options, and use and to move horizontally
through the menu options. (Think of and as your Right and
Left buttons while navigating the menus (see Figure 2 - Visualization
of Menu Navigation Functions).
Once you have reached the desired menu option, press to access
that option. See Figure 3 - Keypad Menu Navigation Menufor a map of
the menu options. The options are described in more detail in the
Menu System Details section.
Figure 2 - Visualization of
Menu Navigation Functions

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Figure 3 - Keypad Menu Navigation Menu
EXAMPLE –To access the “Low Pressure Alarm Limit” option (P3.30):
Hold for five seconds. You will enter the menu at P1.00.
Press twice to move (vertically) to P3.00
Press to move (horizontally) to P3.10
Press twice to move (vertically) to P3.30
Press to enter into the menu option.
Once you have entered into a menu option, use and to cycle through options or set
values.
When ready to save the current setting or value, press .

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To exit the menu option without saving changes, press .
Exiting the Menu System
To exit the menu system entirely, press to return to the 100-level menus, then press
again to return to the default eFlo display.
Menu System Details
P1.00: Process Variable –These values are read-only and are meant for diagnostic purposes.
P1.10: Inlet Pressure –Line Pressure measured by the high pressure sensor; the
value is based on the unit set in P2.20.
P1.20: Gas Temperature –Line Temperature; the value is based on the unit set in
P2.30.
P1.30: Differential Pressure –Difference in pressure measured between the high and
low pressure sensors; the value is based on the unit set in P2.20.
P1.40: Revision Information –For internal use only.
P1.50: Diagnostic Readings –For internal use only.
P2.00: Process Options –These values are modifiable and change how the user views the flow
rate and process variables.
P2.10: Flow Units –Unit of flow rate displayed.
P2.20: Pressure Units –Unit of pressure displayed.
P2.30: Temperature Units –Unit of temperature displayed.
P2.40: Display Average –Increasing this value will increase the average of the flow
rate being displayed on the main screen (range for this value is 1 to 255).
P3.00: User Alarms –Values are modifiable and allow the user to set custom high and low
flow alarms as well as low pressure alarms in addition to the factory low and high pressure
alarms.
P3.10: Low Flow Alarm Limit –Triggers an alarm if the flow drops below the
programmed value (0 = alarm not set).
P3.20: High Flow Alarm Limit –Triggers an alarm if the flow increases above the
programmed value (0 = alarm not set).
P3.30: Low Pressure Alarm Limit –Triggers an alarm if the supply pressure drops
below the programmed value (0 = alarm not set).
NOTE: Factory low and high pressure alarms are not viewable or editable.
P3.40: Deviation Alarm –Triggers an alarm after 60 seconds if the flow PV deviates
from the flow SP more than the defined deviation (0 = alarm not set).
P3.50: Factory Alarm Disable –Disables three preset factory alarms given in P3.51 –
Under Pressure,P3.52 –Valve Shut,and P3.53 –Max Opening (on = alarm is
disabled).

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P4.00: Serial Communications –Values are modifiable and are used to set the serial
communications.
P4.10: Baud Rate
P4.20: Address
P4.30: Parity Bits
P5.00: Ethernet Communications –Values are modifiable and are used to set the Ethernet
Settings.
P5.10: DHCP –Enabling allows the unit to automatically obtain addressing.
P5.20: IP Octet –Used to manually set the IP address of the device.
P5.30: Subnet –Used to manually set the Subnet of the device.
P5.40: Gateway –Used to manually set the Gateway of the device.
P6.00: Setup –Values are modifiable and changes important device options.
NOTE: These options should ONLY be changed if absolutely necessary. Please contact SSi
before making changes to these settings.
P6.10: Zero Tare –Resets the zero flow rate of the meter (manual mode with valve
closed only).
P6.20: Analog Max Flow –Sets the 4-20mA analog in and out based on desired max
flow rate allowable.
P6.30: Control Mode –Sets control method of the meter. Options include Flow mode,
Valve mode, Manual mode, and Ratio mode.
oFlow mode refers to standard control based on a specific flow setpoint for use
with standard gases.
oValve mode refers to valve position control based on % output (commonly used
for carbon control gases).
oManual mode is used for analog flow meters and in-line meters, which do not
contain valve motors for automatic flow control.
oRatio mode is used for specific applications involving ratio control like mixing
systems.
P6.40: Gas Type –Used to set the gas type of the meter. NOTE: changing this value
may limit the amount of flow indicated by the info tag on the front of the meter.
P6.50: Max Valve Position Tare –Sets the max position the valve is capable of driving to
in valve position mode (manual mode with valve opened to desired max flow rate).
P6.60: Altitude Compensation –Sets the altitude for the installed location. Units are
feet above sea level.
P6.70: Decimal Point Override –Allows the flow to display with no, 1, or 2 decimal
points.
P6.80: Control Override –Allows temporary digital control of the meter assuming that
the meter set point is being controlled with an analog signal. When set to “Auto”, the
meter can be remotely controlled with a digital or analog signal. This feature is for
special uses. Contact SSi for more details about this option.
Reference Appendix 1: Menu Option Tables for a detailed chart of parameter options

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Touchscreen Operating Procedure
The eFlo system is equipped with a pressure and flow rate alarm (high and low), flow rate
totalizer, and integrated valve control. The unit can be operated in either manual or automatic
mode for flow rate control. This section of the manual also provides an explanation of the basic
menu navigation through the touchscreen interface as well as how the unit is operates
including: valve control modes, flow limit control, flow alarming, flow totalizing, and
programming of the unit.
The figure below shows the layout of the Main Screen on the touchscreen eFlo 2.0 unit.
Figure 4: Touchscreen main display
Totalizer button:
Current Flow Rate:
Alarm indication: only displayed when
in use. Pressing it will display a list of
active alarms.
Flow bar indicator:
Serial communications
indicator: displays a symbol
when communicating.
Set point button:
Down button: drives the valve closed when the meter is in manual mode.
Settings button:
Current Setpoint:
Up button: drives the
valve open when the
meter is in manual
mode.
Auto/Manual button:
Motor status: displays:
A square when stopped.
An arrow up/down when
driving.
Ethernet communications
indicator: displays:
Yellow when connected.
Blue when communicating.
Does not display when disconnected.
USB: displays a symbol when communicating

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Touchscreen Basic Functions
This section explains the most basic functionality of the eFlo 2.0. Additional options are
available in the Setup menu and are explained in more detail in subsequent sections.
View Active Alarms
To view the active alarms, push on the symbol. This will
bring up a list of active alarms. To return to the main screen,
press .
Figure 5: Active Alarm Screen
View Totalized Flow
To view totalized flow, push . This will bring up the
totalizer screen. To return to the main screen, press .
Reset Totalized Flow
To reset the totalized flow, push from the totalizer
screen.To return to the main screen, press .
The flow rate totalizer records cumulative flow rates measured
by the meter. The totalizer is active at all times. The maximum
totalized value is 999,999,999,999 (in any unit of flow
measurement).
Figure 6: Totalizer Screen