Flomec QSI1 User manual

QSI ELECTRONIC MODULE
For FLOMEC® Remote Applications
01/2022 920897-05 Rev. D

2
This instruction covers the installation of the “no display” electronic module
and the “display ready” electronic module with QSI1, QSI2, or QSI3
versions of communications electronics installed. The basic mechanical
installation is the same for all electronic modules. The wiring connections
and wiring diagrams differ depending on the electronic module being
installed.
MODULE CONTENTS
Check the contents of your module using the list below as reference.
•(1) Completely assembled QSI module
•(2) Butt-splice connectors.
•(4) #4-20 x 7/8 in. Fillister Head Plastite® Screws. (For PVDF G2)
•(1) Installation instructions
•(1) Set of (4) Strain reliefs
Additional items included with Display Ready module:
•(1) Display seal
•(4) #4-20 x 7/8 in. tapping screws
•(1) 10 pin male connector
FLOMEC APP FOR ANDROID
To learn how to get started using the FLOMEC App, visit:
flomecmeters.com/downloads/flomec-app-quickstart.pdf
FLOMEC APP QUICKSTART

3
SPECIFICATIONS
MECHANICAL
Cover Plate
Port Threads
Female 1/2-20 UNF-
2B (Compatible with
PG7 thread)
Port Strain
Relief Hubble PG7
Grip Range 0.11”-0.26”
(2.79 - 6.6mm)
Port Conduit
Adapter
GPI PG7 x 1/2 in.
NPT Male
Recommended
Cable
Belden #9501
(2-Conductor
w/Drain Wire,
Shielded)
TEMPERATURES
Operation
Temperature
+32
°
F to +140
°
F
(0°C to +60°C)
Ambient Air
Operation
Temp
0°F to +140°F
(-18°C to +60°C)
POWER SUPPLY
Voltage
Requirement
Min. 12 VDC
(voltages below 12V
will result in meter
accuracy issues)
Max. 36 VDC
(higher voltage may
damage unit)
Battery Backup
(QSI2, QSI3
Only)
Coin cell lithium, 3V
(CR2032)
UL APPROVED
MAX POWER CONSUMPTION
Remote with
QSI
170mA
4 watts @ 24VDC
6 watts @ 36VDC
ELECTRICAL
PollutionDegree 2
Installation
Category 1
Altitude 2000m Max.
Indoor use only
OUTPUTS
&
COMMUNICATION
QSI Version 1:
Bluetooth
Coil/Digital Pulse Input
Pulse Output
RS485
Temperature Inputs
BTU Calculator
QSI Version 2:
Bluetooth
Coil/Digital Pulse Input
Pulse Output
Temperature Inputs
BTU Calculator
QSI Version 3:
Bluetooth
Coil/Digital Pulse Input
Pulse Output
4-20mA output

4
SPECIFICATIONS (contin ed)
DIMENSIONS
Dimensions are shown in inches and [mm]
Figure 1
APPROVALS & RATINGS
RoHS Compliant (2011/65/EU)
This product is in compliance with the
RoHS Directive of the European
Parliament and of the Council on the
Restriction of the Use of Certain
Hazardous Substances in Electrical
and Electronic Equipment.

5
INTRODUCTION
QSI
The QSI communications module is a multiple capability electronics package and
has three versions (QSI1, QSI2 or QSI3) available; each with its own mix of
capabilities to better serve the customer (See Versions below).
The module is also available as a “display ready” version with no display installed,
but ready for the customer to install their own GPI “09” display.
•QSI1: Equipped with Bluetooth®, coil/digital pulse input, pulse output (flow
or energy & scalable), RS485 (Modbus® RTU), temperature inputs, BTU
calculator.
•QSI2: Equipped with Bluetooth, coil/digital pulse input, pulse output (flow
or energy & scalable), temperature inputs, BTU calculator.
•QSI3: Equipped with Bluetooth, coil/digital pulse input, pulse output (flow
scalable), 4-20mA output.
This manual contains information and meter wiring diagrams for the three different
QSI electronics modules.
IMPORTANT NOTICE
QSI module electronics are very sensitive to electric noise if operated within 6
inches of some electric motors, relays, transformers or other sources of electronic
noise.
If the QSI electronics are used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
GENERAL INFORMATION
QSI electronics are available factory installed on designated meters, or as modules
that will adapt the electronics to other FLOMEC meters.
The QSI electronics converts the voltage (or pulses) from the meter into usable
information to support the various capabilities of the modules. The modules also
supply the display (when installed on display ready versions) with the information
and power it needs to function as designed.
The QSI module electronics are powered by customer- supplied external power.
SAFETY
This product is not approved for use in hazardous locations.
•Be sure O-rings and seals are kept in good repair.
•When applying power, adhere to specifications in this manual.
•Disconnect external power before attaching or detaching input or output
wires.

6
ASSEMBLY INSTRUCTIONS
NOTE: For DISPLAY READY QSI electronic modules only.
For the “Display Ready” QSI module, follow these initial instructions first to install
your customer provided display to the cover plate in the kit. Then follow the
Installation Instructions to install this customer-assembled unit to the meter
1. Make sure the QSI module and meter are disconnected from power source.
2. Remove batteries from your display, they will no longer be needed.
3. Remove the pickup coil from the back center of your display by cutting the two
wires that attach it to the display. Cut the wires as close to the display as
possible to ensure the cut ends do not touch the PC board inside the QSI
module. Discard the removed coil.
4. Using a small regular screwdriver, remove the clear sealant from the 10 pin
female connector holes on the backside of your display.
5. Insert the “long legs” of the 10-pin male connector that came with the kit into
the 10 pin female connector on the QSI circuit board (see Figure A).
6. Install the formed display seal into the seal gland on the backside of the display.
7. CAREFULLY mount the display onto the cover plate ensuring the legs of the
male 10-pin connector are inserted into ALL 10 pin female connector holes of
the display (see Figure B).
8. Secure the display to the cover plate using the four #4-20 x 7/8 in. tapping
screws. Torque to 80-96 oz-in (0.56-0.67 Nm).
Figure A
Figure B

7
INSTALLATION
NOTE: For ALL QSI electronic modules.
1. Make sure the QSI module and meter are disconnected from power source.
2. Select the mounting location and mount the remote module using the (4)
mounting ears on the base. The holes in the ears will accommodate a 1/4 in.
diameter bolt or screw. The remote can be mounted in any orientation.
3. Remove the (6) #8-16 x 3/4 in. screws attaching the module cover plate to the
base and separate. Do not damage the seal between the two components (see
Figure 2).
4. To route external power and/or electronic cables to the QSI PC board screw
connectors, prepare the cover plate by removing the plug and sealing washer
from each port that you intend to use. Replace the removed plugs with a strain
relief with O-ring. The strain relief will accommodate cable sizes of 0.11 in. (2.8
mm) through 0.26 in. (6.6 mm) diameter. Leave the factory installed plugs in
any unused ports.
5. (Make sure the power is disconnected from external cables before beginning
this step): Route external cables through the strain relief(s), and then tighten
the dome nut securely around the cable to provide an environmental seal.
6. Connect cable wires to the QSI PC board screw connectors (or) to the Coil A
and Coil B non-polarized wires (if using an unpowered pick-up coil on your
device). (See Figure 4, 6, or 8 depending on your module version).
NOTE: The Coil A and Coil B wire ends are sealed with insulating tape. Do not
remove the tape unless connecting to these two wires.
If using an “unpowered coil” as inputs, remove the tape from wire ends and connect
either wire to either of the Coil A or Coil B wires from the PC board, using the
enclosed butt-splice connectors (see Figure 2). Crimp connector to splice wires
together and release insulation gel. Repeat with the remaining sensor and PC
board wire.
NOTE: If your installation will be using the “pulse input” screw connectors on the
PC board, and definitely have no need of the Coil A and Coil B wires for
“unpowered coil” inputs, the (2) wires may be snipped off as close to the PC board
as possible. However, doing that will render the “unpowered coil” inputs to Coil A
and Coil B circuits unusable.
7. Mount the cover plate on the base making sure the seal is seated properly
between them. Replace the (6) previously removed screws to secure the cover
plate to the base. Tighten screws.
8. Connect power to QSI module and meter.

8
INSTALLATION (contin ed)
NOTE: The below figure is for all QSI electronic modules, even though the “display
ready” version is not shown in the pictorial.
STRAIN RELIEFS SHOWN INSTALLED
Figure 2

9
WIRING DIAGRAMS
TERMINAL CONNECTIONS CHART
Figure 3
TEMP SENSOR
PT100-Red Sensor VCC Output
PT100-White Input High Side
PT100-Blue Input Return
RS-485 (Galvanically Isolated)
RS485 (+) Positive Signal
RS485 (-) Negative Signal
RS485 GND Circuit Ground*
PULSE INPUT
+5V 5VDC output to power
external sensor
(+) Digital Pulse Frequency
Input, up to 3kHz
(-) Digital Pulse Return
4-20mA (Galvanically Isolated)
(+) 4 to 20mA current loop-
current in to transmitter
(-) 4 to 20mA current loop-
current out of transmitter*
*NOTE: It is not recommended to connect
isolated ground connections together or to
board common.
Coil A Low level sine wave input
Coil B Low level sine wave input
GPI SENSOR
Ribbon cable connection to GPI custom
sensor designs
PULSE OUTPUT
(Galvanically Isolated)
(-) Pulse Output return
current*
(+)
Pulse Output frequency
output. This is a “current
sinking open collector”
output ***
POWER INPUT
(-) 12-36VDC Input A**
(+) 12-36VDC Input B**
**NOTE: Polarity of voltage for DC is not
important. However, an earth ground isolated
power supply is required to prevent earth
ground loop currents and ground fault
conditions.
***NOTE: This output may require an
external pull up resistor if interfacing
equipment does not include one.

10
QSI1 WIRING
QSI VERSION 1 – PC BOARD
RS-485
BTU
Figure 4
QSI VERSION 1 - WIRING DIAGRAM
Inputs: Temperature Sensors, Variable Reluctance, Pickup Coil
Outputs: RS-485, Pulse Output
Figure 5

11
QSI2 WIRING
QSI VERSION 2 – PC BOARD
Pulse In
BTU
Figure 6
QSI VERSION 2 - WIRING DIAGRAM
Inputs: Temperature Sensors, Variable Reluctance, Pickup Coil
Output: Pulse Output
Figure 7

12
QSI3 WIRING
QSI VERSION 3 – PC BOARD
4-20mA
Figure 8
QSI VERSION 3 - WIRING DIAGRAM
Customer Equipment with Built-in Power Supply
Inputs: Standard Remote Sensor (Variable Reluctance Pickup Coil)
Outputs: Customer Equipment, 4-20mA Sensing, Built-in Loop Power Supply
Minimum signal amplitude required for
normal operation is approximately 15mV P-P.
Recommended cable type - twisted pair with
shield. Recommended maximum cable length
is 20ft.
CAUTION: When reassembling the cover plate, make sure the enclosure seal is not crimped or twisted.
Do not over-tighten screws (hand-tighten only).
Figure 9

13
QSI3 WIRING - (continued)
QSI VERSION 3 - WIRING DIAGRAM
Customer Equipment without Built-in Power Supply
Inputs: Standard Remote Sensor (Variable Reluctance Pickup Coil)
Outputs: 4-20mA with Separate Power Supply
Note: Either of the wiring diagrams below (Low Side Negative Wiring-Figure 10A) or
(High Side Positive Wiring-Figure 10B) are valid, as long as the current direction arrows
and the (+) and (-) connections on all of the equipment in the loop are correct.
Fig re 10A
Low Side (Negative) Wiring
Fig re 10B
High Side (Positive) Wiring

14
Power (-)
WIRING DIAGRAM
Customer Open Collector Signal
OutputInto QSI Versions 1, 2 or 3
Power (+)
Red
+9 to 35 V (dc)
Terminal
Block
Black
Common
+5V
+ Pulse Input
Power
Open Collector
Signal
White
Ground
Pull Up
Resisto
r
ISOLATED POWER
SUPPLY24 V (dc)
24 V (dc) recommended for use with
bothQSI & Conditioned Signal Output
Module
(+)
(
-
)
FLOMEC CONDITIONED SIGNAL OUTPUT MODULE WIRING
NOTE: The FLOMEC Conditioned Signal Output Module wiring diagram shown
below is an excerpt from the module owner’s manual and is shown here for
convenience.
NOTE: Pull up resistor shown in FLOMEC Conditioned Signal Output Module
wiring diagram above is not required for use with QSI Versions 1, 2, or 3. If the
resistor is already installed, there is no need to remove it.
Figure 11

15
MAINTENANCE
Check cable-entry seals periodically. Tighten and/or apply sealant if needed. This
is especially important in environments containing heavy concentrations of dust,
oil mist, or other residue.
Check all wiring connections occasionally for oxidation or corrosion. Clean and re-
seat if such conditions are noted.
If necessary, check and re-seat any connections that may have been subjected to
strain (during rework or construction, for example).
REPLACING BATTERY
NOTE: The QSI2 and QSI3 communications module has a 3V lithium coin cell
battery installed on the PC board. In case of power failure, the battery functions
as power backup to maintain the internal system time. Any QSI2 or QSI3 feature
that uses a time reference as part of its functionality will be immediately accurate
to the current time when power is restored.
To replace battery in “NO DISPLAY” MODULE:
•DISCONNECT POWER TO METER
•Remove (6) screws retaining the cover plate to the base and lift the cover plate
free of the base (see Figure 12).
•Flip the cover plate over and remove (4) screws retaining the PC board
assembly (see Figure 13).
•Remove and replace the coin cell battery (CR2032) on the backside of PC
board (see Figure 14).
•Reverse the procedure to reassemble the cover plate to the base. Make sure
the cover plate seal is seated before tightening the (6) cover plate screws.
To replace battery in “DISPLAY READY” MODULE:
NOTE: On units with a display, only the display needs to be removed to replace
the coin cell battery. The battery is accessible through the opening where the
display is installed (see Figure 15).
•DISCONNECT POWER TO METER
•Remove (4) screws retaining the display to the cover plate. Lift the display
straight up to disconnect the 10-pin bridge connector. The bridge connector
could disengage from either socket connector (display or PCB assembly) or
both.
•Remove and replace the coin cell battery (CR2032).
•Reverse the procedure to reassemble the display to the cover plate. Make sure
the display seal is seated before tightening the (4) display screws.

16
MAINTENANCE (contin ed)
REPLACING BATTERY (continued)
STRAIN RELIEFS NOT SHOWN
Figure 12 Figure 13
Figure 14 Figure 15

17
SERVICE
For warranty consideration, contact your local distributor. If you need further
assistance, contact the GPI Customer Service Department at:
1-888-996-3837
You will need to:
•
Provide information from the decal on your meter.
•
Receive a Return Authorization number.
•
Flush any fluid from the meter before shipping to the factory.
RETURNING PARTS
Please contact the factory before returning any parts. It may be possible to
diagnose the trouble and identify needed parts in a telephone call. GPI can also
inform you of any special handling requirements you will need to follow covering
the transportation and handling of equipment that has been used to transfer
hazardous or flammable liquids.
CAUTION: Do not return equipment without specific authority from the GPI
Customer Service Department. Due to strict regulations governing transportation,
handling, and disposal of hazardous or flammable liquids, GPI will not accept
equipment for rework unless it is completely free of liquid residue.

18
NOTES
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19
NOTES
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20
FLOMEC® TWO-YEAR LIMITED WARRANTY
Great Plains Industries, Inc. 5252 E. 36th Street North, Wichita, KS USA 67220-3205, hereby
provides a limited warranty against defects in material and workmanship on all products
manufactured by Great Plains Industries, Inc. This product includes a 2-year warranty.
Manufacturer’s sole obligation under the foregoing warranties will be limited to either, at
Manufacturer’s option, replacing or repairing defective Goods (subject to limitations
hereinafter provided) or refunding the purchase price for such Goods theretofore paid by the
Buyer, and Buyer’s exclusive remedy for breach of any such warranties will be enforcement
of such obligations of Manufacturer. The warranty shall extend to the purchaser of this
product and to any person to whom such product is transferred during the warranty period.
The warranty period shall begin on the date of manufacture or on the date of purchase with
an original sales receipt. This warranty shall not apply if:
A. the product has been altered or modified outside the warrantor’s duly appointed
representative;
B. the product has been subjected to neglect, misuse, abuse or damage or has been
installed or operated other than in accordance with the manufacturer’s operating
instructions.
To make a claim against this warranty, or for technical assistance or repair, contact your
FLOMEC distributor or contact FLOMEC at one of the locations below.
In North or South America contact
Great Plains Industries, Inc.
5252 East 36
th
St. North
Wichita, KS 67220-3205
USA
888-996-3837
www.flomecmeters.com
(North America)
Outside North or South America contact
GPI Australia
(Trimec Industries Pty. Ltd.)
12/7-11 Parraweena Road
Caringbah NSW 2229
Australia
+61 02 9540 4433
www.flomec.com.au
The company will step you through a product troubleshooting process to determine
appropriate corrective actions.
GREAT PLAINS INDUSTRIES, INC., EXCLUDES LIABILITY UNDER THIS WARRANTY
FOR DIRECT, INDIRECT, INCIDENTAL AND CONSEQUENTIAL DAMAGES INCURRED IN
THE USE OR LOSS OF USE OF THE PRODUCT WARRANTED HEREUNDER.
The company herewith expressly disclaims any warranty of merchantability or fitness for any
particular purpose other than for which it was designed.
This warranty gives you specific rights and you may also have other rights which vary from
U.S. state to U.S. state.
NOTE: In compliance with MAGNUSON MOSS CONSUMER WARRANTY ACT – Part 702
(governs the resale availability of the warranty terms).
© 2021 Great Plains Industries, Inc., All Rights Reserved.
Great Plains Industries, Inc. / 888-996-3837 / flomecmeters.com
01/2022 920897-05 Rev. D
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3
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