Siargo MF5806E1 User manual

Medical Oxygen Flow Meter
VA.0.01
Model MF5806E1
@ 2022 Siargo Ltd.
www.Siargo.com

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Medical Oxygen Flow Meter
Enabled with IoT (LoRaWAN)
MF5806E1
User Manual
Document No. 07-2022-MF58 EN
Issue date:
2022.07
Revision: VA.0.01
Siargo Ltd.
3100 De La Cruz Boulevard, Suite 210
Santa Clara, CA 95054
USA
Tel: [phone]
Email: [email protected]
© Copyright 2022 by Siargo Ltd.
Siargo Ltd. and its subsidiaries reserve the right to change the specifications and/or descriptions
without prior notice. For further information and updates, please visit: www.Siargo.com

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Attention !
Use with caution !
xPlease carefully read this manual prior to operating this product.
xDo not open or modify any hardware which may lead to irrecoverable
damage.
xDo not use this product if you suspect any malfunctions or defection.
xUse this product only for medical oxygen and do not use in a strong
vibrational environment.
x
Use this product according to the specified parameters.
xOnly the trained or qualified personnel shall be allowed to perform product
services.
xBe cautious for the electrical safety, even it operates at a low voltage,
any electrical shock might lead to some unexpected damages.
xThe gas to be measured should be medical oxygen. Do not apply this meter
for any other purpose.
xThis product is designed for fully automatic oxygen therapy. It is intended to
have the operation as simple as possible. However, training of the operator
should be performed before use .
xLoRaWAN wireless is a local network, excellent for data safety and reliability.
Some knowledge of the system is required for the communication.

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Table of Contents
1. Overview.................................................................................................. 5
2. Receipt / unpack of the products ................................................................ 6
3. Knowing the products ............................................................................... 7
3.1 Product description ...........................................................................................................7
3.2 LCD description.................................................................................................................7
3.3 Power and data cable description....................................................................................... 8
3.4 Mechanical dimensions ..................................................................................................... 8
4. Installation............................................................................................... 9
5. Operation and MENU description..............................................................11
5.1 Check the product specifications.......................................................................................11
5.2 Check the leakage ........................................................................................................... 11
5.3 Power the meter and digital data connection.....................................................................11
5.4
Meter MENU description
.................................................................................................. 12
5.4.1 Starting the operation .....................................................................................................12
5.4.2 MENU entry with a verified password................................................................................ 13
5.4.3 Set the RS485 Modbus address......................................................................................... 13
5.4.4 Set the RS485 communication baud rate...........................................................................14
5.4.5
Reset or calibrate the offset .............................................................................................14
5.4.6 Set the Response time ..................................................................................................... 15
5.4.7 Select the display mode ................................................................................................... 15
5.4.8 Set an alarm: upper instant flow rate limit ........................................................................ 15
5.4.9 Set an alarm: lower the instant flow rate limit ...................................................................16
5.4.10 Set an alarm: accumulated flow rate or totalizer limit ........................................................16
5.4.11 Change the default password ........................................................................................... 17
5.4.12 Reset the accumulated or totalized flow rate .....................................................................17
5.4.13 Reset the time counter.....................................................................................................17
5.4.14 Exit the MENU ................................................................................................................
18
5.4.15 Sleeping mode ................................................................................................................18
5.4.16 Wake up the meter ..........................................................................................................18
5.4.17 MENU key sequence for the settings .................................................................................19

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5.5 RS485 Modbus communication protocol............................................................................20
5.5.1 Hardware connection.......................................................................................................20
5.5.2 Communication parameters .............................................................................................
20
5.5.3 Frame.............................................................................................................................21
5.5.4 Function codes................................................................................................................ 21
5.5.5 Registers ........................................................................................................................21
6. Technical specifications............................................................................26
7. Technical notes for the product performance .............................................27
7.1 Measurement principle .................................................................................................... 27
7.2 Comparison with a third-party reference meter.................................................................. 27
8. Troubleshooting ......................................................................................29
9. Warranty and Liability..............................................................................30
10. Service/order contact and other information.............................................. 32
Appendix I: LoRaWAN connection..................................................................33
Appendix II: Document history.......................................................................34

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1. Overview
All contact information can be found at the end of this manual.
This manual provides essential information for the operation of the MF5806E1 medical oxygen mass
flow meters for hospital and homecare oxygen therapy
applications. The product performance,
maintenance, and trouble-shooting as well as the information for product order, technical support,
and repair are also included.
Oxygen therapy can be dated back to 1887 that has been used as a therapy for several cases in
particular respiratory-related diseases. As of today, the control of the oxygen delivery is via pure
mechanical rotameters which are based on volumetric metrology and have very low accuracy. In
addition, it also requires heavy attendance by the administrator, often a nurse, to initialize, monitor,
and conclude the progress which is all done manually.
The MF5806E1 is designed to be a significant improvement of the oxygen therapy process into a
fully automatic with remote data and execution. The precision control via an oxygen mass flow
meter is enabled with the company’s proprietary MEMS (micro-electro-mechanical systems) thermal
calorimetric sensing technology. The wetted materials of the products are compatible with medical
oxygen. The current model is the 3rd generation of the products having significantly upgraded
features since its first release in 2014. The upgrade includes much-improved accuracy and integrated
LoRaWAN wireless data. The software running over the LoRaWAN network provides both
monitoring and control, as well as data safety and reliability. Siargo is committed to continuing
product innovation while offering the best value to our customers.
Siargo also offers a wide spectrum of off-the-shelf and customized flow, pressure, temperature
/humidity, and gas concentration sensing products and provides integration and turn-
key solutions
to our customers. Please contact the manufacturer for additional information.

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2. Receipt / unpack of the products
Upon receipt of the products, please check the packing box before the dismantlement of the packing
materials. Ensure no damages during shipping. If any abnormality is observed, please contact and
notify the carrier who shipped the product and inform the distributors or sales representatives if the
order is not placed directly with the manufacturer, otherwise, the manufacturer should be notifi
ed
as well. For any further actions, please refer to the return and repair section in this manual.
If the packing box is intact, proceed to open the packing box, and you shall find the flow meter (with
water cup), the power adapter, and/or data cable as shown below. Some parts may or may not be
found according to your actual order.
Flow meter Adapter Data cable
Figure 2.1: MF5806E1 flow meter and accessories
Please check immediately for the integrity of the product as well as the accessories listed above and
based on your actual order, if any abnormal is identified, please notify the distributor/sales
representative or manufacturer as soon as you can. If any defects are confirmed, an exchange shall
be arranged immediately via the original sales channel. (Note: the LCD screen shall not be lighted
until the battery is installed or the power cable is plugged in). This user manual shall also either be
included in the packing box or via an online link for an electronic version. In most cases, this manual
shall be made available to the customer before the actual order.
The meter is designed with low power
that can be operated with 4 AA rechargeable batteries. A
power adapter must have a safety certification for use with this meter. The external power/data
connector is a type-C USB. See the detailed requirements in the operation section.

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3. Knowing the products
3.1 Product description
;
Figure 3.1: MF5806E1 parts description
3.2 LCD description
The LCD provides all information that the product
measures. The following table details the meaning of each
of the symbols.
Figure 3.2: MF5806E1 LCD display
Table 3.1: Symbols description
ACC
The top row. The default displays the totalized flowrate in m3 (cubic meters).
Flow
The 2nd row. Displays instant flow rate in L/min (liters per minute).
Indicate the upper numerical display is time.
LoRaWAN wireless protocol is enabled when lights up.
Alarm.
Battery status.
Meter head
Oxygen
supply plug
LCD display
MENU keys
Flow rate manual
control valve
Water bottle
connector
Battery
chamber
cover
Oxygen
output
Water
bottle
Product
label
External power
/ data port

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3.3 Power and data cable description
Table 3.2: MF5806E1 wire assignment.
Figure 3.3: MF5806E1 data cable
3.4 Mechanical dimensions
Note: The water cup size may be different from region to region.
Figure 3.4: MF5806E1 dimensions
Wire
Color
Definition
1
Red
Power supply (+24 Vdc)
2
Black
GND, ground
3
Green
RS485A (+)
4
White
RS485B (-)

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4. Installation
Do not open or alter any part of the product which would lead to malfunction and irrecoverable
damage. It will also forfeit the terms of the warranty and cause liability.
The product at the time of shipment is fully inspected for its quality and meets all safety requirements.
Additional safety measures during the installation should be applied. This includes,
but is not limited
to the leakage verification procedures, standard EDS (electrostatic discharge) precautions, and DC
voltage precautions. Other tasks such as calibration, part replacement, repair, and maintenance
must only be performed by trained personnel. Upon request, the manufacturer will provide
necessary technical support and/or training for the personnel.
The product has a default DISS connector which is ready to plug into the oxygen supply in many
hospitals or home care supplies. However, there are also many other types of oxygen supply
connectors.
Please inform the supplier
of the particular type of connector that your oxygen supply
is offering such that the mechanical connection can be properly configured at the time of shipping.
Please follow the following steps to complete the installation:
a) Upon opening the package, the product's physical integrity should be inspected to ensure no
visual damage.
b) Before installation of the product, please ensure that the pipe debris or particles or any other
foreign materials are completed removed.
c) Install 4-AA batteries into the battery chamber. In case the external power supply with data
transmission is desired, connect electrical wires
per the wire definition in Table 3.2
. Please be
sure of the power supply range (i.e., 24 VDC) and power supply polarization. If an adapter is other
than the one supplied by the manufacturer, make sure the adapter meets industrial standards
and has all safety certifications.
d) For the communication wire connection, please follow the description in Table 3.2 and make sure
that the wires are correctly connected to the proper ports on your data device/equipment. Please
make sure the data cable meets industrial standards with proper shielding.
e) For LoRaWAN
wireless communication, please install the gateway and the software first.
Depending on the communication frequency that you will configure, it is recommended that the
external power is used when the communication is enabled.
f) Once the battery is installed, or the external power is successfully connected, the LCD will be
lighted up and flash for about 2 seconds before the proper information is displayed correctly.
g) This will conclude the installation.

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Cautions
a) Don't alter any parts of the product.
b) Ensure the electrical connection is properly done per the instructions.
c) Make sure no mechanical stresses in the connections.
d) The strong electromagnetic interference sources close by or any mechanical shocks at the
pipeline may also create malfunctioning of the product.

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5. Operation and MENU description
5.1 Check the product specifications
Before starting to use this product, check the product specifications that can be found in this manual
or the basic information located on the back panel of the product.
The detailed product information
can be found in Section
6. Be particularly cautious about the
supplied voltage indicated in the specification. A higher voltage may lead to irrecoverable damage,
and a lower voltage will not power the product for any desired functions.
For the best performance of the product, it is advised that the gas to be measured must be clean and
free of particles or other foreign materials.
5.2 Check the leakage
Check gas leakage before any measurement. If it is needed, pressurized nitrogen or air can be used
for the leakage check.
5.3 Power the meter and digital data connection
Although this product complies with the CE-
required EMC regulations, it also requires the product to
be used according to the standard electrical device practice. For normal oxygen therapy, the meter
can be powered by 4-AA batteries. Be sure to select the batteries with safety proof and within the
expiration date. Do not use batteries without a known manufacturer and expiration date. For
extensive usage, it is recommended to have the meter powered with external DC power or an AC-DC
adapter. Make sure the output voltage is within the range of the specified ones in Section 7. Before
connecting the product with the external power, make sure the standard electrical device
precautions such as EDS (electrostatic discharge) and DC voltage are observed. Excessive
electrostatic discharge may damage the p
roduct.
The power and data ports are standard Type-C USB port. The manufacturer-supplied Type-C USB
cable has the screw locking fixture. It is recommended such a feature to ensure the cable is properly
engaged and will not be accidentally got unplugged.
Half-duplex RS485 Modbus is used for digital data communication. Make sure the wires are properly
connected to the receiver side.

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5.4 Meter MENU description
Figure 5.1: MF5806E1 keys description
The meter has a front 3-
key board for the user to set the desired functions, access data, and check
the status. The Menu key (M) is at the central position that allows the user to select a function and
confirmation or other related actions that will be detailed below. Two keys (“Up” and “Down”) to
select the menu and sub-menu.
5.4.1 Starting the operation
Once the power is supplied and no abnormal issues are observed, the product is ready to perform the
designed functions. Two displays correspond to the different data acquisition parameters: time-
limited therapy; accumulated or totalized mass flow therapy. The user can switch the display by the
central MENU key (by pressing the key within 0.5 seconds.
The default display is for the mass flow
measurement having two numerical lines on the LCD. The upper line is the accumulated or totalized
flow rate, and the lower line is the instant flow rate. If the battery symbol turns empty, proceed to
change the battery or plug in the external power cord.
Figure 5.2: MF5806E1 display modes
The above two graphs show the two display modes: the first one is the time acquisition mode for
which the upper line displays the totalized time of the oxygen therapy in hh:mm (hours:minutes)
format; and the lower line is the instant mass flow rate. On the display are also the battery status
and LoRaWAN
status. The second one is the mass flow acquisition which shows the totalized
/accumulated mass flow rate at the upper line, and the instant flow rate at the lower line.
Up MENU Down

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In any case, if the battery symbol indicates an empty or near-empty status, change the battery or
plug in the external power before proceeding further. When the external power is used, the battery
mode is automatically switched off, and there will be no battery symbol displayed in any of these two
modes.
5.4.2
MENU entry with a verified password
At any of the two display modes, press the central “M” MENU key,
and it will enter into the password setting and verification MENU.
The default password is “11111”. If the password is incorrect, the
display will return to the main display.
To enter a new password, press the “Up” or “Down” key to change
the digit that flashes, and press the
“M”
key to confirm. Repeat this process for all 5 digits and the
meter will enter into the menu setting interfaces/screen.
Subsequently, the MENU allows the user to:
¾F2 - Addr Set Modbus address;
¾F3 - bPS Change communication baud rate;
¾F11 - oFFST R
eset or calibrate the offset
;
¾F16 - rESPS Set response time;
¾F38 - dISP Change the display mode;
¾F51 - ALM-H Set upper flow rate limit alarm;
¾F52 - ALM-L Set lower flow rate limit alarm;
¾F53 -
ALM
-A Set totalized or accumulated flow rate alarm;
¾F91 - PASS Change the default password;
¾F92 - CLr-A Clear or reset the totalizer or accumulated flow rate;
¾F93 - CLr-T Reset the time counter;
¾F99 - qUIT Exit from the MENU.
Note: During this process, the meter will continue to measure the flow without being interrupted.
5.4.3 Set the RS485 Modbus address
After the password is verified and entered into the MENU settings,
press the “Up” or “Down” key until the screen shows the F2 - Addr as
indicated to the left.
The Modbus address has 3 digits, which can be any number between
001 to 255. (Note: The default Modbus address is 001). Press the
“M” key to enter into the change address screen. Press the “Up” or
“Down” key to change the flashing digits, and then press the “M” key
to confirm. After the address is set, the display will return to F2 -

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Addr, which indicates the task is completed. Press the “Up” or “Down” key to select F99 - qUIT and
the “M” key to exit the MENU and return to the Main Display screen.
5.4.4 Set the RS485 communication baud rate
Following the above-
mentioned steps, at the MENU setting screen,
use the “Up” or “Down” key to select F3 - bPS and then press the “M”
key to set the RS485 communication baud rate.
There are 6 baud rates selectable, depending on your system
requirements: 4800, 9600, 19200, 38400, 57600, and 115200. (Note:
The default baud rate is 9600). Use the “Up” or “Down” key to
select the desired one and press the “M” key to confirm. The display
will then return to the F3 - bPS screen, which indicates the task is
completed. Use the
“Up” or “Down” key to select F99
- qUIT and the “M” key to exit the MENU and
return to the Main Display screen.
5.4.5 Reset or calibrate the offset
After a certain time of usage, the meter’s offset (zero flow rate)
might or might not have a small shift. Or when you apply the meter
for different gases, the offset might be shifted. To ensure
measurement accuracy, it is necessary to reset or calibrate the offset.
Following the above-mentioned steps, at the MENU setting screen,
use the “Up” or “Down” key to select F11 - oFFST. Before performing
the task, make sure there is absolutely no flow in the flow channel,
otherwise, it will create even bigger erroneous measurement results.
Press the “M” key to confirm the task, and it will open the sub-MENU asking you to confirm. Use the
“Up” or “Down” key to select the desired one and press the “M” key to confirm. The display will then
return to the F11 - oFFST screen, which indicates the task is completed. Use the “Up” or “Down” key
to select F99 - qUIT and the “M” key to exi
t the MENU and return to the Main Display screen.

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5.4.6 Set the Response time
Following the above-mentioned steps, at the MENU setting
screen, use the “Up” or “Down” key to select F16 - rESPS and then
press the “M” key to set the response time.
There are 6 response time selectable: 125, 250, 500, 1000, 2000, and
5000, unit is msec. The default response time is 125 msec. Use the
“Up” or “Down” key to select the desired one and press the “M” key
to confirm. The display will then return to the F16 - rESPS screen,
which indicates the task is completed. Use the “Up” or “Down” key
to select F99 - qUIT and the “M” key to exit the MENU and return to the Main Display screen.
5.4.7 Select the display mode
This function is to set the display modes, cycle display mode, or
fixed display mode. If one likes to switch between these two display
modes, following the above-mentioned steps, at the MENU
setting screen, use the “Up” or “Down” key to select F38 - dISP.
Press the “M” key to confirm, and it will open the sub-MENU
showing the current display mode. Use the “Up” or “Down” and the
“M” confirming key to select the desired one, and press the “M” key
again to complete the task. The display will then return to the F38
- dISP screen, which indicates the task is completed. Use the “Up” or “Down” key to select F99 - qUIT
and the “M” key to exit the MENU and return to the Main Display screen.
5.4.8 Set an alarm: upper instant flow rate limit
This function allows the user to set the instant flow rate above which
the meter will trigger the alarm function. The alarm will be a sharp
sound every 2 seconds while the screen/display will flash. The
trigger
ed alarm will not stop the meter from continuous operation.
The alarm will be off once the metering value is below the set value.
The flow rate has two decimal points with a maximum not over the
full-scale flow rate at the order. Following the above-mentioned
steps, at the MENU setting screen, use the “Up” or “Down” key to
select F51 - ALm-H. Press the “M” key to confirm, and it will open the sub-MENU showing a default
flow rate of 999.99. Use the “Up” or “Down” and the “M” confirming key to enter the desired one,
and press
the “M” key again to complete the task. The display will then return to the F51 - ALm-H
screen, which indicates the task is completed. Use the “Up” or “Down” key to select F99 - qUIT and
the “M” key to exit the MENU and return to the Main Display screen.

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5.4.9 Set an alarm: lower the instant flow rate limit
This function allows the user to set the instant flow rate below
which the meter will trigger the alarm function. The alarm will be
a sharp sound every 2 seconds while the screen/display will flash.
The trigger
ed
alarm will not stop the meter from continuous
operation. The alarm will be off once the metering value is above
the set value.
The flow rate has two decimal points with a minimum of 0.00.
Following the above-mentioned steps, at the MENU setting screen,
use the “Up” or “Down” key to select F52 - ALm-L. Press the “M” key to confirm, and it will open the
sub-MENU showing a default flow rate of 0.00. Use the “Up” or “Down” and the
“M”
confirming key
to enter the desired one, and press the “M” key again to complete the task. The display will then
return to the F52 - ALm-L screen, which indicates the task is completed. Use the “Up” or “Down” key
to select F99 - qUIT and the “M” key to exit the MENU and return to the Main Display screen.
5.4.10 Set an alarm: accumulated flow rate or totalizer limit
This function allows the user to set the maximum accumulated
or
totalized flow rate above which the meter will trigger the alarm
function. The alarm will be a sharp sound every 2 seconds while the
screen/display will flash. The triggered alarm will not stop the meter
from continuous operation. The alarm will be off by resetting the
setting.
The accumulated or totalized flow rate has seven digits with a
maximum of 9999999. Following the above-mentioned steps, at
the MENU setting screen, use the “Up” or “Down” key to select F53 - ALm-A. Press the “M” key to
confirm, and it will open the sub-MENU showing a default flow rate of 9999999. Use the “Up” or
“Down” and the “M” confirming key to enter the desired one, and press the “M” key again to
complete the task. The display will then return to the F53 - ALm-A screen, which indicates the task
is completed. Use the “Up” or “Down” key to select F99 -
qUIT and the “M” key to exit the MENU
and return to the Main Display screen.

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5.4.11 Change the default password
For data safety, it is recommended that the default password of
11111 should be changed when the first use of this product.
Following the above-mentioned steps, at the MENU setting screen,
use the “Up” or “Down” key to select F91 - PASS. Press the “M” key
to confirm, and it will open the sub
-MENU showing the default
password of 11111. Use the “Up” or “Down” and the “M” confirming
key to enter the desired one, and press the “M” key again to complete the task. The display will then
return to the F91 - PASS screen, which indicates the task is completed. Use the “Up” or “Down” key
to select F99 - qUIT and the “M” key to exit the MENU and return to the Main Display screen.
Please keep the changed password in a safe yet accessible place. In case it is unrecoverable, please
contact the manufacturer to obtain a special password to access the meter MENU.
5.4.12 Reset the accumulated or totalized flow rate
As the maximum value of the accumulated or totalized flow rate
that the internal register can have is 9999999
, the register will stop
accumulating once the value is reached. At this time, it is necessary
to reset this register. Following the above-mentioned steps, at the
MENU setting screen, use the “Up” or “Down” key to select F92 -
CLr-A. Press the “M” key to confirm, and it will open the sub-MENU
for resetting the value. Use the “Up” or “Down” to select and the
“M” confirming key to execute, and press the “M” key again to
complete the task. The display will then return to the F92 - CLr-A
screen, which indicates the task is completed. Use the “Up” or “Down” key to select F99 - qUIT and
the “M” key to exit the MENU and return to the Main Display screen.
5.4.13 Reset the time counter
In the totalized time therapy mode, it may be necessary to reset the
timer at the conclusion of each therapy. Following the above-
mentioned steps, at the MENU setting screen, use the “Up” or “Down”
key to select F93 - CLr-T. Press the “M” key to confirm, and it will
open the sub-MENU for resetting the value. Use the “Up” or “Down”
to select and the “M” confirming key to execute, and press the “M”
key again to complete the task. The display will then return to the
F93 - CLr-T screen, which indicates the task is completed. Use the

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“Up” or “Down” key to select F99 - qUIT and the “M” key to exit the MENU and return to the Main
Display screen.
5.4.14 Exit the MENU
At the MENU settings, use the “Up” or “Down” key to select the F99 -
qUIT option and press the “M” confirming key to exit the MENU
settings and return to the Main Display screen.
5.4.15 Sleeping mode
When the meter is powered by batteries, it is necessary to enable the sleeping mode for the power
saving to allow a longer operation time.
The meter is programmed with an automatic sleeping mode that will automatically shut off the
display and the control circuitry is at minimal power consumption. This mode will be executed when
the continuously measured flow rate is zero for 5 minutes.
The meter can also be turned into sleep mode manually via pressing the “Up” key for 3 seconds.
5.4.16 Wake up the meter
When the meter is in sleeping mode, it will automatically wake up if the flow rate in the flow channel
is larger than 0.5 L/min for 10 seconds. Or the meter can be waked up manually by pressing any of
the three keys on the front meter face.

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5.4.17 MENU key sequence for the settings
Figure 5.3: MF5806E1 MENU key sequence