Fluid Components International FLT93 User Manual

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. 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:

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 enclo­sure (FE). The integral option has one enclosure.)

If the instrument is a remote configuration, the serial number on the enclosure tags must match.

Flow Element Serial Number
Also Showing Flow Arrow.
(Located near the FE enclosure.
It is also on the enclosure tag.)

Electronics Serial Number

(It is also on the transmitter’s (FT) enclosure tag.)

Tag Location - Top Side of

Remote Enclosure Option

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.

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FLUID COMPONENTS INTERNATIONAL LLC FLT93 Flow Switch Series

Flow Element Installation

Install the flow element, with the flow arrow (shown on Page 1) in the direction of media flow. The element should be in the
center line of the process pipe or rectangular duct. The flow arrow flat area is to be parallel ±2° with the media flow. If the
remote control circuit option is used, the serial number of the flow element must match the serial number of the electronic
enclosure. Below are the most common instrument mounting options.

Flanged Integral Instrument Shown in a Customer Process

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. Connect the instrument to
ground. Apply antistatic agents such as Static Free made by Chemtronics (or equivalent) to hand tools to be used on the
instrument. Keep high static producing items away from the instrument such as non-ESD approved plastic, tape and packing
foam.

The above precautions are minimum requirements to be used. The complete use of ESD precautions can be found in
the U.S. Department of Defense Handbook 263.

Unscrew the instrument’s lid. Remove the control circuit by prying up on the metal transformer tabs (under the serial
number label) while rocking the transformer back and forth. This exposes the wiring block shown on the next page.

NPT Integral Instrument Shown in a Customer Process

FLT93L Local Inline Mount

Be sure the instrument is configured correctly for the applied input power. If Factory Mutual
specifications were ordered, the input power should be 115 VAC and the instrument jumpers should be set
for 115 VAC as shown on Page 4. Otherwise, the power input has been set for 220 VAC unless otherwise

Caution

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specified.

2 Doc. No. 06EN003312 Rev. D

FLT93 Flow Switch Series FLUID COMPONENTS INTERNATIONAL LLC

Wiring the Instrument

Caution

Only qualified personnel are to wire or test this
instrument. The operator assumes all
responsibilities for safe practices while wiring
or troubleshooting.

Alert

The instrument contains electrostatic discharge
(ESD) sensitive devices. Use standard ESD
precautions when handling the control circuit.

Wiring the Instrument into the Customer Application:

This section describes proper wiring to the transmitter inputs, outputs and interconnection cabling for the optional remote
configuration. See the following table to determine the size of wiring to be used versus the length of the wire.

Maximum Dis tanc e for AW G

Connection 10 ft. 50 ft. 100 ft. 250 ft. 500 ft. 1000 ft.

(3m) (15m) (31m) (76m) (152m) (305m)
AC Power 222222201816
Relay (6A) 22 16 12 Not Recommended
Flow Element W ires* 22 20 20 18 18 18
*Requires a shielded cable with the shield wire connected to the control socket only.

N/O

ALARM

# 2

N/C

ALARM

# 2

COM 8*REF 9*HTR 10*

HTR 7*
ACT 7*

(SHIELD-REMOTE ONLY)*

SAFETY

GND

* Connected at Factory,
unless the instrument is
a remote configuration.

PWR PWR

AC or DC

(+) (-)

COM

ALARM

# 2

N/O

ALARM

# 1

COM

ALARM

# 1

FLT93 Integral (Remote) Wiring Pictorial

N/C

ALARM

# 1

SAFETY
GND

HTR 2 REF 3 COM 4 ACT5 HTR 1

FLT93 Local Wiring Pictorial

FLT93 Integral Wiring Diagram

Doc. No. 06EN003312 Rev. D 3

FLT93 Remote Wiring Diagram

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FLUID COMPONENTS INTERNATIONAL LLC FLT93 Flow Switch Series

Jumper Placement

Jumper Locations (Underlined Jumpers are default)

Standard Default Jumper Configuration

INPUT POW ER

HEA TER PO W ER

NUMB ER OF A LA RMS

ALARM NO. 1 RED LED
SET POINT POT R26

ALARM NO. 2 GREEN LED
SET POINT POT R25

230 VA C (J2, J5 AND J6), OR FM APPROV AL 120 VAC (J1, J3, J5)

FLT9 3- S 0.75 WA TTS FOR AIR OR LIQUID A PPLICATIONS ( J13)

FLT93- F 0. 25 WA TTS FOR AIR OR LIQUID APPL ICATIONS (J14)

TWO ( J23) . EA CH A LA RM HA S ONE SET OF SPDT CONTA CTS.

SET TO MONITOR FLOW OR LEVEL SIGNALS (J20).
RELAY ENERGIZED A T FLOW OR WET (J27)

SET TO MONITOR FLOW OR LEVEL SIGNALS (J20).
RELAY ENERGIZED BELOW TEMPERATURE (J25)
SET POINT AT A PPROXIMATELY:
250°F (121°C) FOR STANDARD TEMPERATURE,
500°F (260°C) FOR MEDIUM TEMPERATURE,
850°F (454°C) FOR HIGH TEMPERATURE (FLT93-S ONLY).

Selectable Heater Wattage Control

JUMPER J32 J12 J13* J14* J33

FL T93- S EL EMENT
WATTA GE (110 OHM HTR)
FLT93- F ELEMENT
WATTA GE (560 OHM HTR)

*J13 IS STA NDA RD FOR FLT-S A ND J1 4 IS STA NDA RD FOR FLT93- F.

3

WA TTS

0.57

WA TTS

1.75

WA TTS

0.52

WA TTS

0.75

WA TTS

0.49

WA TTS

0.21

WATTS

0.25

WATTS

OFF

OFF

Alarm Application

FLOW / LEV EL TEMP

ALARM NO. 1 J20

ALARM NO.2 J18 J19

J21

Relay Contact Configuration

J22 SINGLE SPDT (DISABLES ALARM NO. 2)

DUA L DPDT (O NE RELA Y PER A LA RM)

J23

Relay Energization

JUM PER ALARM NO. 1

RELA Y DE-ENERGIZED WITH LOW FL OW,

J27

LOW LEVEL (DRY ) OR HIGH TEMPERATURE.
RELA Y DE-ENERGIZ ED WITH HIGH FLOW,

J26

HIG H L EV EL ( W ET) O R L O W TEMPERA T URE.

ALARM NO. 2

RELA Y DE-ENERGIZED WITH LOW FL OW,

J25

LOW LEVEL (DRY ) OR HIGH TEMPERATURE.
RELA Y DE-ENERGIZ ED WITH HIGH FLOW,

J24

HIG H L EV EL ( W ET) O R L O W TEMPERA T URE.

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Input Power

JUMPER

4 Doc. No. 06EN003312 Rev. D

100-130 VA C 200-260 VAC 21-30 VDC 18-26 VAC
J1 IN OUT OUT OUT
J2 OUT IN OUT OUT
J3 IN OUT OUT OUT
J4 OUT OUT OUT IN
J5 IN IN OUT OUT
J6 OUT IN IN IN
J7 OUT OUT IN OUT
J8 OUT OUT IN OUT
J9 OUT OUT OUT IN

POWER SELECT