Warranty, Service & Repair
WARRANTY
Flowline warrants to the original purchaser of its products that such
products will be free from defects in material and workmanship under
normal use and service for a period which is equal to the shorter of
one year from the date of purchase of such products or two years from
the date of manufacture of such products.
This warranty covers only those components of the products which
are non-moving and not subject to normal wear. Moreover, products
which are modified or altered, and electrical cables which are cut to
length during installation are not covered by this warranty.
Flowline’s obligation under this warranty is solely and exclusively
limited to the repair or replacement, at Flowline’s option, of the products (or components thereof) which Flowline’s examination proves to
its satisfaction to be defective. FLOWLINE SHALL HAVE NO
OBLIGATION FOR CONSEQUENTIAL DAMAGES TO PERSONAL OR REAL PROPERTY, OR FOR INJURY TO ANYPERSON.
This warranty does not apply to products which have been subject to
electrical or chemical damage due to improper use, accident, negligence, abuse or misuse. Abuse shall be assumed when indicated by
electrical damage to relays, reed switches or other components. The
warranty does not apply to products which are damaged during shipment back to Flowline’s factory or designated service center or are
returned without the original casing on the products. Moreover, this
warranty becomes immediately null and void if anyone other than service personnel authorized by Flowline attempts to repair the defective
products.
Products which are thought to be defective must be shipped prepaid
and insured to Flowline’s factory or a designated service center (the
identity and address of which will be provided upon request) within
30 days of the discovery of the defect. Such defective products must
be accompanied by proof of the date of purchase.
Flowline further reserves the right to unilaterally wave this warranty
and to dispose of any product returned to Flowline where:
a. There is evidence of a potentially hazardous material present
with product.
b. The product has remained unclaimed at Flowline for longer than
30 days after dutifully requesting disposition of the product.
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND
THE DESCRIPTION ON THE FACE OF THIS WARRANTY. This
warranty and the obligations and liabilities of Flowline under it are
exclusive and instead of, and the original purchaser hereby waives, all
other remedies, warranties, guarantees or liabilities, express or
implied. EXCLUDED FROM THIS WARRANTY IS THE IMPLIED
WARRANTY OF FITNESS OF THE PRODUCTS FOR A PARTICULAR PURPOSE OR USE AND THE IMPLIED WARRANTY OF
MERCHANT ABILITY OF THE PRODUCTS.
This warranty may not be extended, altered or varied except by a written instrument signed by a duly-authorized officer of Flowline, Inc.
®
Version 0.4A
© 2007 FLOWLINE Inc.
All rights reserved.
Manual # FT900003 09/07
Thermo-Flo™ Flow Switches
FT10 and GT10 Series
Owner’s Manual
To register your product with the manufacturer, go to the Flowline
website for on-line registration. The website address is as follows:
www.flowline.com
On-line Warranty Registration can be found under Contact
Flowline on the Navigation Bar along the side of the home page.
If for some reason your product must be returned for factory service, go to
the Flowline website listed above. Online Factory Service can be found
under Contact Flowline on the Navigation Bar along the side of the home
page. Click on Return Authorization to begin the registration process.
You will need the following information at the time of registration:
1. Part Number and full Serial Number from product
2. Name and telephone number of someone who can answer
technical questions related to the product and its application.
3. Return Shipping Address
4. Brief Description of the Symptom
5. Brief Description of the Application
Once you have received a Material Return Authorization number,
ship the product prepaid in its original packing to:
Flowline Factory Service
MRA _____
10500 Humbolt Street
Los Alamitos, CA 90720
To avoid delays in processing your repair, write the MRA on the
shipping label. Please include the information about the malfunction with your product. This information enables our service technicians to process your repair order as quickly as possible.
I
P
68
Step One
SPECIFICATIONS
Common Specifications:
175
150
125
100
075
050
025
000
00 20 40 60 80 100
Acceptable
Range
Unacceptable
Range
Temperature/Pressure Derating
Operating Pressure (psi)
Temperature (Cß)
PVDF PP
Thermo-Flo Ultrasonic Level Switch, FT10 Series
* all dimensions are Nominal
10
6
10
5
10
4
10
3
10
2
10
1
1
10
-1
1 10 100 150 1000
12"
8"
6"
4"
3"
2"
1"
3/4"
1/2"
90
GT10 Rate vs Velocity
Flow Rate (cfm)
Velocity (fps)
1000
100
10
1
0.1
0.01
.01 .04 .1 .2 1 3 10
6"
4"
3"
2"
1-1/2"
1"
3/4"
1/2"
12" 10" 8"
FT10 V olume vs Velocity
Flow Rate (gpm)
Velocity (fps)
Set Points:
The FT10 liquid flow switch set point is factory calibrated to
0.2 fps and the GT10 gas flow switch is set to 10 fps. To convert feet/sec to GPM, please refer to the chart below.
Set point range:
Factory set point:
Repeatability:
Response time:
Set point adjust.:
Viscosity range:
(FT10 only)
Supply voltage:
Consumption:
Contact type:
Contact rating:
Contact output:
Process temp.:
Electronics temp.:
Pressure:
Sensor rating:
Sensor material:
Cable jacket mat.:
Cable type:
Cable length:
Process mount:
Mount. gasket:
Classification:
CE compliance:
FT10: .04 to 3 fps
GT10: 1 to 90 fps
FT10: .2 fps (.06 mps)
GT10: 10 fps (3 mps)
±
.5% of set point
@ fixed temp.
1-10 seconds
Potentiometer
1-200 centipoise
12-36 VDC
70 mA maximum
(1) SPST relay
60 VA
Selectable NO/NC
F: 32˚ to 140˚
C: 0˚ to 60˚
F: -40˚ to 140˚
C: -40˚ to 60˚
150 psi (10 bar) @ 25˚
C., derated @ 1.667
psi (.113 bar) per ˚C.
above 25˚ C.
NEMA 4X (IP65)
1__5: PP-Ryton®
5__5: PVDF Kynar®
1__5: PP
5__5: FEP Teflon®
4-conductor, #22 AWG
(shielded)
Standard: 10' (3m)
Special order: 25'
(7.6m) or 50' (15.2m)
3/4" NPT (3/4" G / R)
Viton® (G version only)
General purpose
EN 61326 EMC
EN 61010-1 safety
(.012 to .91 mps)
(.3 to 27 mps)
Thermo-Flo Switch
_T10 - _ _ _ 5
Medium
F - Liquid
G - Gas
Sensor Material
1 - PP
5 - PVDF
Sensor Length
3 - Short
4 - Long
Mounting Thread
0 - 3/4" NPT
2 - 3/4" ISO
10’ Cable (3m)
10’ Cable (3m)
3/4" NPT (G 3/4")3/4" NPT (R 3/4")
0.7"
(19mm)
2.1"(54mm)
3/4" NPT (R 3/4")3/4" NPT (R 3/4")
0.7"
(19mm)
1.3"(32mm)
2.8"(71mm)
0.7"
(19mm)
4.5"(114mm)
3.0"(76mm)
Ambient Sensor Temperature (Cß)
Maximum T emperature/Volta ge
Derating @ Maximum Current
100
80
60
40
20
00
12 18 24 30 36
Acceptable
Operating Voltage (VDC)
Unacceptable
Range
Range
Flowline Electrical Loading Limits
1,400
1,200
1,000
800
600
400
200
0
Max. Series Resistance (Ohms)
Unacceptable
Range
Acceptable
Range
12 18 24 30 36
Supply Voltage (VDC)
Step Two Step Three
SAFETY PRECAUTIONS INTRODUCTION
About this Manual:
PLEASE READ THE ENTIRE MANUAL PRIOR TO
INSTALLING OR USING THIS PRODUCT. This manual
includes information on all models of Flowline Thermo-Flo Flow
Switches: FT10 and GT10 series. Please refer to the part number
located on the switch label to verify the exact model which you
have purchased.
User’s Responsibility for Safety:
Flowline manufactures a wide range of flow switches and technologies. While each of these sensors is designed to operate in a
wide variety of applications, it is the user’s responsibility to select
a sensor model that is appropriate for the application, install it
properly, perform tests of the installed system, and maintain all
components. The failure to do so could result in property damage
or serious injury.
Proper Installation and Handling:
Because this is an electrically operated device, only properlytrained staff should install and/or repair this product. Use a proper
sealant with all installations. Note: Always install the 3/4” Viton
gasket with all versions of Thermo-Flo with metric threads. The G
threaded version will not seal unless the gasket is properly
installed. Never overtighten the sensor within the fitting, beyond a
maximum of 80 inch-pounds torque. Always check for leaks prior
to system start-up.
Material Compatibility:
The FT10 and GT10 series sensors are available in two different wetted materials. Models FT10-1__5 and GT10-1__5 are made of
Polypropylene (PP) with Ryton tips. Models FT10-5__5 and GT105__5 are made of Polyvinylidene Fluoride (PVDF). Make sure that the
model you have selected is compatible with the application liquid. To
determine the chemical compatibility between the sensor and its application liquids, refer to an industry reference such as the Compass
Corrosion Guide (available from Compass Publications, phone 858589-9636).
Wiring and Electrical:
The supply voltage used to power the sensor should never exceed
a maximum of 36 volts DC. Electrical wiring of the sensor should
be performed in accordance with all applicable national, state, and
local codes.
Flammable, Explosive and Hazardous Applications:
DO NOT USE THE FT10 OR GT10 SERIES GENERAL PURPOSE FLOW SWITCHES IN HAZARDOUS LOCATIONS.
WARNING
The rating for the relay is 60 VA
Flowline’s Thermo-Flo flow switches are not recommended for
use with electrically charged application liquids. For most reliable operation, the liquid being measured may need to be electrically grounded.
Always install the 3/4” Viton gasket with all versions of the
powered sensors with metric threads. The G threaded version
will not seal unless the gasket is installed properly.
Technology:
The thermal dispersion flow switch measures liquid or gas temperature to determine changes in flow velocity. As fluid flows across the
sensing tips, the temperature is reduced proportionately as a function
of the flow rate. When a temperature or velocity shift reaches the user
defined set point, the switch changes state indicating the appropriate
flow condition (flow or no-flow).
FLOWLINE's sophisticated electronics convert the temperature shift
into a signal which indicates whether a flow or no-flow condition
occurs. Depending on how the sensor is wired, this signal may be
wired for normally open or normally closed circuits.
FLOWLINE's Thermo-Flo flow switches have no moving parts to
clog or foul, making them suitable for a variety of applications,
including non-coating and non-scaling liquids. The FT10 series
directly measure mass flow and can operate over a broad range of liquids from 0.4 to 1.2 specific gravity, 1 to 300 cp. The GT10 series
directly measure mass flow and can operate over a broad range of liquids from 0.4 to 1.2 specific gravity, 1 to 300 cp.
Initialization Sequence for FT10 series:
Powering up the FT10 is different in water and in air. When the flow
switch is powered up while submersed, the FT10 will immediately
indicate flow before switching to its correct state. When the flow
switch is powered up while in air, the FT10 will immediately indicate
no-flow before indicating its correct state. Atime delay may be used
to eliminate this initialization sequence. Flowline's thermal dispersion
relay controllers feature a 0 to 60 second time delay for your convenience.
Step Four Step Five
INSTALLATION WIRING
When using any type of fitting, the orientation as well as the insertion
depth of the flow switch in the pipe is critical. See the diagram below
for the recommended orientation depth.
The FT10 series flow switch must always be in contact with
the liquid being measured. The GT10 series flow switch must
never be submersed in liquid. Both flow switches feature a
3/4" NPT threads which will allow it to be used with various
types of fittings. Be sure to check the insertion depth of the
flow switch in the fitting after it is installed. See the diagram
below for the recommended insertion depth.
WARNING
The flow switch tips have a thin plastic wall which may be damaged if dropped or installed improperly.
The FT10 flow switch is designed for use in liquid. For best
results, avoid installing the FT10 where bubbles are present or
where the tips of the switch may be out of the liquid.
The GT10 flow switch is designed for use in gas applications.
For best results, avoid installing the GT10 where it may be submersed in liquid.
Note: Always install the Viton gasket with all versions of the
FT10-__2_. The G threaded version will not seal unless the gasket is properly installed.
Wiring to a Flowline Controller:
LC30 Series Controller
LC80 Series Controller
Green
Black
Shield - Not Used
White
Red
STANDARD
CONTROLLER
RELAY 1 RELAY 2
POWER
INPUT 1 INPUT 2A INPUT 2B
-
+
-
+
INVERT
DELAY
INVERT
DELAY
LATCH
ON OFF
Green
Red
White
Black
Not Used - Shield
Supply Voltage:
The supply voltage to the Thermo-Flo flow switch should never
exceed a maximum of 36 VDC. Use controllers or power supplies,
with a minimum output of 12 VDC or a maximum output of 36 VDC.
Required Cable Length:
Determine the length of cable required between the Thermo-Flo flow
switch and its point of termination. Allow enough slack to ensure the
easy installation, removal and/or maintenance of the sensor. The
cable length may be extended up to a maximum of 1000 feet, using a
well-insulated, 14 to 20 gauge shielded four conductor cable.
Wire Stripping:
Using a 10 gauge wire stripper, carefully remove the outer layer of
insulation from the last 1-1/4" of the sensor's cable. Unwrap and discard the exposed foil shield from around the signal wires, leaving the
drain wire attached if desired. With a 20 gauge wire stripper, remove
the last 1/4" of the colored insulation from the signal wires.
Signal Output (Relay switching):
Allows the sensor to switch a small load on or off directly, using an
internal relay rated below 60 VA. The NO/NC status is set by the
polarity of the voltage feeding the red and black wires. The green
wire is the common for the relay and the white wire is the NO or NC,
depending on the polarity of red and black.
Normally Open Wiring:
Red
Black
Shield
Ground
24 VDC
Power Supply
+
-
Multimeter
(Continuity)
-
+
White
Green
Acceptable
Insertion Range
1/8 Pipe ID min.
Pipe ID
ACAC
PP
RR
115 VAC
220 VAC
ACAC
GNDGND
NCNC
C
NONO
DELADELAY
Input 1A
(S)(S)
LALATCHTCH
(-)(-)
(+)(+)
INVERINVERT +/- +/-
Step Six Step Seven
WIRING WIRING
[Flow Condition]
Sensor
(NO)
RED
GRN
SHLD
WHT
BLK
LOAD
LOAD
OR
[+]
[-]
[Flow Condition]
Sensor
(NC)
BLK
GRN
SHLD
WHT
RED
LOAD
LOAD
OR
[+]
[-]
[Flow Condition]
Sensor
(NO)
RED
GRN
SHLD
WHT
BLK
LOAD
[Low Voltage]
[+]
[-]
[Flow Condition]
Sensor
(NC)
BLK
GRN
SHLD
WHT
RED
LOAD
[Low Voltage]
[+]
[-]
Wiring the Relay Output:
The Thermo-Flo relay output can be wired as a dry contact to a VDC
or VAC power source. Thermo-Flo does require 12 - 36 VDC power
to operate the sensor and switch the relay. All illustrations below
identify a Dry switch state as the normal position of the relay.
Switching a Normally Open DC Load:
The Red wire connects to Positive (+) of the power supply and the
Black wire connects to Negative (-). The LOAD can be attached to
either the Green or White wires. Complete the circuit by either connecting the Green to (+) VDC power or White to (-) VDC power (see
illustration below).
Switching a Normally Closed DC Load:
The Black wire connects to Positive (+) of the power supply and the
Red wire connects to Negative (-). The LOAD can be attached to
either the Green or White wires. Complete the circuit by either connecting the Green to (+) VDC power or White to (-) VDC power (see
illustration below).
Switching a Normally Open AC Load:
The Red wire connects to Positive (+) of the DC power supply and the
Black wire connects to Negative (-). The LOAD can be attached to
the Green wire and the Hot of the VAC power. Connect the White to
the Neutral of the VAC power (see illustration below).
Switching a Normally Closed AC Load:
The Black wire connects to Positive (+) of the DC power supply and
the Red wire connects to Negative (-). The LOAD can be attached to
the Green wire and the Hot of the VAC power. Connect the White to
the Neutral of the VAC power (see illustration below).
Wiring as a P-Channel or N-Channel output:
The Thermo-Flo can be substituted for either a P-Channel (PNP,
sourcing) output or a N-Channel (NPN, sinking) output.
Normally Open DC Load as a P-Channel Output:
To wire as a NO P-Channel output, follow the directions below. The
Red wire connects to Positive (+) of the power supply and the Black
wire connects to Negative (-). The Green wire is jumpered to the Red
wire while the White wire is connected to the LOAD. Jumper the
LOAD back to the Negative (-) to complete the circuit.
[Flow Condition]
Sensor
(NO)
RED
GRN
SHLD
WHT
BLK
LOAD
[+]
[-]
[Flow Condition]
Sensor
(NC)
BLK
GRN
SHLD
WHT
RED
LOAD
[+]
[-]
[Flow Condition]
Sensor
(NO)
RED
GRN
SHLD
WHT
BLK
LOAD
[+]
[-]
[Flow Condition]
Sensor
(NC)
BLK
GRN
SHLD
WHT
RED
LOAD
[+]
[-]
Normally Closed DC Load as a N-Channel Output:
To wire as a NC N-Channel output, follow the directions below. The
Black wire connects to Positive (+) of the power supply and the Red
wire connects to Negative (-). The White wire is jumpered to the Red
wire while the White wire is connected to the LOAD. Jumper the
LOAD back to the Positive (+) to complete the circuit.
Normally Open DC Load as a N-Channel Output:
To wire as a NO N-Channel output, follow the directions below. The
Red wire connects to Positive (+) of the power supply and the Black
wire connects to Negative (-). The White wire is jumpered to the
Black wire while the Green wire is connected to the LOAD. Jumper
the LOAD back to the Positive (+) to complete the circuit.
Normally Closed DC Load as a P-Channel Output:
To wire as a NC P-Channel output, follow the directions below. The
Black wire connects to Positive (+) of the power supply and the Red
wire connects to Negative (-). The Green wire is jumpered to the
Black wire while the White wire is connected to the LOAD. Jumper
the LOAD back to the Negative (-) to complete the circuit.
Step Nine
MAINTENANCE
General:
The Thermo-Flo flow switch requires no periodic maintenance except
to clean off any deposits or scaling from the sensor tip as necessary.
It is the responsibility of the user to determine the appropriate maintenance schedule, based on the specific characteristics of the application liquids.
Cleaning Procedure:
1. Power: Make Sure that all power to the sensor, controller and/or
power supply is completely disconnected.
2. Sensor Removal: Make sure that the flow is off and the pres-
sure is down prior to removing the Thermo-Flo. Carefully,
remove the sensor from the installation. Replace the sensor with
a 3/4” NPT plug to insure that liquid does not leak out during this
procedure. Do not re-install the Thermo-Flo if the threads are
damaged.
3. Cleaning the Sensor: Use a soft bristle brush and mild deter-
gent, carefully wash the Thermo-Flo flow switch. Do not use
harsh abrasives such as steel wool or sandpaper, which might
damage the surface sensor. Do not use incompatible solvents
which may damage the sensor's PP/Ryton or PVDF plastic body.
4. Sensor Installation: Follow the appropriate steps of installa-
tion as outlined in the installation section of this manual.
Testing the installation:
1. Power: Turn on power to the controller and/or power supply.
2. Immersing the switch: Immerse the sensing tip in its applica-
tion liquid, by filling the tank up to the switches point of actuation. An alternate method of immersing the switch during preliminary testing is to hold a cup filled with application liquid up to
the switch's tip.
3. Test: With the switch being fluctuated between wet and dry
states, the switch indicator light in the controller should turn on
and off. If the controller doesn't have an input indicator, use a voltmeter or ammeter to ensure that the switch produces the correct
signal.
4. Point of actuation: Observe the point at which the rising or
falling fluid level causes the switch to change state, and adjust the
installation of the switch if necessary.
Step Eight
CALIBRATION
Set Points:
If the preset factory calibration is not adequate for your application,
follow the calibration steps listed below.
Note: the switch's internal LED will be on when the switch
detects no-flow and will off when the switch detects flow.
1. Install the fitting and flow switch as described in the Installation
section of this manual. Turn the flow switch and controller power
on and adjust the flow rate to the application setting. If the medium to be sensed is likely to be subject to high temperature variations, the flow switch should be set at the highest normal temperature likely to be encountered.
2. Locate the potentiometer knob at the top
of the flow switch. The red LED is visible
through the potentiometer. (If the LED is
on, slowly adjust the potentiometer counterclockwise, with a small flat head
screwdriver until the LED turns off.) The
adjustment is a single turn 270° potentiometer. The initial response time of the
flow switch after adjustment is 1 to 10
seconds. Adjust the potentiometer in slow
increments and wait for the response.
If the LED is off, slowly adjust the potentiometer clockwise until the light turns on.
Then turn the potentiometer counterclockwise to bring the LED off at a reliable setting. Remember, adjust the potentiometer in slow increments and
wait for the response.
3. Verify that the new calibration is correct by lowering the system
flow rate below the set point and check to see that the red LED
turns on. Then increase the flow rate above the set point and verify that the red LED turns off accordingly.
FT10 Series GT10 Series
1 fps
90 fps
10 fps
Potentiometer
Knob
0.2 fps
.04 fps
3 fps
Loading...