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Pre-Installation
A. To get the best results from the instrument, the instrument should be mounted 20 pipe diameters downstream from any valve,
pipe elbow, or other flow disturbance and 10 pipe diameters upstream from any disturbances.
The instrument tag shows the model number, tag number (if noted on the customer's order), serial number along with other
important safety information. Compare this information with the appropriate pipe installation drawings to verify the instrument
is the correct configuration.
Tag Location - Between Conduit Ports
On Integral or Local Enclosure
Note:
If the instrument is a remote configuration, the serial number on the enclosure tags must match.
The recommended tag number on the local enclosure will have an FE in the tag number. The recommended tag number on the
remote enclosure will have an FT in the tag number. (Tags are specified by the customer, "FE/FT" is a recommended naming
convention.)
B. Verify the serial numbers on the enclosure(s), flow element and electronics match. The instrument may not work if the
serial numbers do not match. (The remote option has a remote transmitter enclosure (FT) and a local flow element
sure (FE). The integral option has one enclosure.)
Flow Element Serial Number
Also Showing Flow Arrow.
(Located near the FE enclosure.
It is also on the enclosure tag.)
C. Recommended installation/troubleshooting tools are an open-ended wrench to fit the NPT connection, an open-ended wrench
to fit the flanged fitting nuts and bolts, a small flat blade screw driver for manipulating potentiometers, both a medium flat
blade screwdriver and a medium phillips head screwdriver for tightening connections, 3 mm allen wrench for CENELEC
approved instruments, a measuring tape for proper flow element placement, and a DVM for Ohm/Voltage measurements.
This page is subject to proprietary rights statement on last page
FLT93 Installation, Operation and
Troubleshooting Guide
Tag Location - Top Side of
Remote Enclosure Option
Electronics Serial Number
(It is also on the transmitter's (FT) enclosure tag.)
e n c l o -
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Table of Contents
Related Manuals for FCI FLT93 Series
Summary of Contents for FCI FLT93 Series
- Page 1 FLT93 Installation, Operation and Troubleshooting Guide Pre-Installation A. To get the best results from the instrument, the instrument should be mounted 20 pipe diameters downstream from any valve, pipe elbow, or other flow disturbance and 10 pipe diameters upstream from any disturbances. The instrument tag shows the model number, tag number (if noted on the customer’s order), serial number along with other important safety information.
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Page 2: Wiring Preparation
Wiring Preparation Before the instrument is opened to install the wiring, FCI recommends that the following ESD precautions be observed: Use a wrist band or heel strap with a 1 megohm resistor connected to ground. If the instrument is in a shop setting there should be static conductive mats on the work table and floor with a 1 megohm resistor connected to ground. -
Page 3: Wiring The Instrument
FLT93 Flow Switch Series FLUID COMPONENTS INTERNATIONAL LLC Wiring the Instrument Only qualified personnel are to wire or test this The instrument contains electrostatic discharge instrument. The operator assumes all (ESD) sensitive devices. Use standard ESD responsibilities for safe practices while wiring precautions when handling the control circuit. -
Page 4: Jumper Placement
FLUID COMPONENTS INTERNATIONAL LLC FLT93 Flow Switch Series Jumper Placement Jumper Locations (Underlined Jumpers are default) Standard Default Jumper Configuration INPUT POWER 230 VAC (J2, J5 AND J6), OR FM APPROVAL 120 VAC (J1, J3, J5) FLT93-S 0.75 WATTS FOR AIR OR LIQUID APPLICATIONS (J13) HEATER POWER FLT93-F 0.25 WATTS FOR AIR OR LIQUID APPLICATIONS (J14) NUMBER OF ALARMS... - Page 5 FLT93 Flow Switch Series FLUID COMPONENTS INTERNATIONAL LLC Alarm Adjustment Procedure (Not necessary if the instrument has been factory calibrated.) Control Circuit Adjustment Locations Level Application Signal Output Flow Application Signal Output Adjustment by Observation (Option 1) Note: The control circuit has two mutually exclusive alarms; they are identified as Alarm No. 1 and Alarm No. 2 and each has a set point adjustment potentiometer and LED indicator.
- Page 6 FLUID COMPONENTS INTERNATIONAL LLC FLT93 Flow Switch Series Detecting Decreasing Flow (low flow alarm) If the status LED is off, turn the set point adjustment potentiometer clockwise until the LED turns on. With the LED on, slowly turn the potentiometer counterclockwise one turn past the point at which the LED just turns off. The potentiometer may have up to one-quarter turn of hysteresis, therefore, if the mark is overshot, the procedure should be repeated.
- Page 7 Early production instruments used a mating cable and connector. If a cable and connector are required use FCI part number 015664-01 to order. 7. Establish the normal process flow condition and allow the signal to stabilize.
- Page 8 FLUID COMPONENTS INTERNATIONAL LLC FLT93 Flow Switch Series Detecting Decreasing Flow (low flow alarm) 1. Stop the process flow and allow the signal to stabilize. 2. Record the no-flow signal. (The no-flow signal should be greater than the normal flow signal.) No-Flow Signal = ________ volts DC 3.
- Page 9 Early production instruments used a mating cable and connector. If a cable and connector are required use FCI part number 015664-01 to order. 7. Raise the process fluid level so the sensing element is wet.
- Page 10 FLUID COMPONENTS INTERNATIONAL LLC FLT93 Flow Switch Series 11. Determine the set point by calculating the average of the wet and dry output signals. (i.e., If the wet signal is 0.200 volts and the dry signal is 4.000 volts, then the calculated set point would be 2.100 volts.) 12.
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Page 11: Troubleshooting
Measure the voltage at P1 terminals 2 to 4. Check Voltage is 0 volts: NOT OK; Contact FCI Technical Service. Replace with spare control board. Turn off the power and remove the control circuit. Check sensing element connections. 5. Sensor Element... - Page 12 This document contains confidential technical data, including trade secrets and proprietary information which is the property of Fluid Components International LLC (FCI). Disclosure of this data to you is expressly conditioned upon your assent that its use is limited to use within your company only (and does not include manufacture or processing uses).
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Questions and answers
is this switch applicble for vertical and horizontal pipe installation? why the insertion tube will be fixed upto center of the pipe line?
Yes, the FCI FLT93 Series switch is applicable for both vertical and horizontal pipe installations. The insertion tube is fixed up to the center of the pipeline to ensure accurate measurement by placing the sensing element in the proper flow stream for reliable detection.
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