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FLT93 Flow Switch Series

FLUID COMPONENTS INTERNATIONAL LLC

Doc. No. 06EN003312 Rev. D

3

This page is subject to proprietary rights statement on last page

Wiring the Instrument

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.

Alert

FLT93 Integral (Remote) Wiring Pictorial

FLT93 Integral Wiring Diagram

Maximum Distance for AW G

        Connection

10 ft.

50 ft.

100 ft.

250 ft.

500 ft.

1000 ft.

(3m)

(15m)

(31m)

(76m)

(152m)

(305m)

AC  Power

22

22

22

20

18

16

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.

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

SAFETY

   GND

 HTR 2   REF 3 COM 4  ACT5

 HTR 1

FLT93 Local Wiring Pictorial

SAFETY

GND

COM

ALARM

# 2

N/O

ALARM

# 1

COM

ALARM

# 1

N/C

ALARM

# 1

AC or DC

(+)   (-)

N/O

ALARM

# 2

N/C

ALARM

# 2

HTR 7*
ACT 7*

(SHIELD-REMOTE ONLY)*

COM 8*

REF 9*

HTR 10*

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

PWR PWR

Caution

FLT93 Remote Wiring Diagram

Summary of Contents for FLT93F

Page 1: ...Element Serial Number Also Showing FlowArrow 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 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 potent...

Page 2: ...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...

Page 3: ... Remote Wiring Pictorial FLT93 Integral Wiring Diagram Maximum Distance for AWG Connection 10 ft 50 ft 100 ft 250 ft 500 ft 1000 ft 3m 15m 31m 76m 152m 305m AC Power 22 22 22 20 18 16 Relay 6A 22 16 12 Not Recommended Flow Element Wires 22 20 20 18 18 18 Requires a shielded cable with the shield wire connected to the control socket only Only qualified personnel are to wire or test this instrument ...

Page 4: ...FOR FLT S AND J14 IS STANDARD FOR FLT93 F 0 75 WATTS 0 21 WATTS OFF OFF 0 49 WATTS 0 25 WATTS JUMPER ALARM NO 1 RELAY DE ENERGIZED WITH LOW FLOW LOW LEVEL DRY OR HIGH TEMPERATURE RELAY DE ENERGIZED WITH HIGH FLOW HIGH LEVEL WET OR LOW TEMPERATURE ALARM NO 2 RELAY DE ENERGIZED WITH LOW FLOW LOW LEVEL DRY OR HIGH TEMPERATURE RELAY DE ENERGIZED WITH HIGH FLOW HIGH LEVEL WET OR LOW TEMPERATURE J27 J26...

Page 5: ...ch alarm can be setup for one of three applications flow level interface or temperature The following application specific adjustment procedures are generic and can be used for setting either or both alarms The mode switch must be in the RUN position Use the top figure on this page to help locate the adjustment potentiometers and LEDs Flow Applications 1 Ensure that the instrument has been properl...

Page 6: ... 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 hystereses therefore if the mark is overshot the procedure should be repeated Detecting Wet Condition adjustment with sensing element dry Alert Give c...

Page 7: ...ckwise until the LED turns off With the LED off slowly turn the potentiometer clockwise one half turn past the point at which the LED just turns on The potentiometer may have up to one quarter turn of hysteresis therefore if the mark is overshot the procedure should be repeated Adjustment by Measurement Option 2 Air Gas Flow Applications 1 Remove the instrument s enclosure cover 2 Ensure the confi...

Page 8: ... No 2 counterclockwise until the LED turns off and then slowly clockwise just until the LED turns on 8 If this is the only flow application alarm to be setup then skip to the Continue With the Air Gas Flow Procedure Detecting Increasing Flow high flow alarm 1 Establish the excessive process flow condition and allow the signal to stabilize 2 Record the high flow signal The high flow signal should b...

Page 9: ...Continue With the Air Gas Flow Procedure 1 Slide the mode switch to the RUN position 2 Establish the normal process flow condition For low flow alarm setups the status LED should be off For high flow alarm setups the status LED should be on 3 Establish the process alarm condition and monitor the voltmeter display 4 When the output signal passes through the calculated set point value the status LED...

Page 10: ...Detecting Wet Condition high level alarm If the status LED is on turn the set point adjustment potentiometer R26 for alarm No 1 or R25 for alarm No 2 slowly counterclockwise just until the LED turns off OR If the status LED is off turn the set point adjustment potentiometer R26 for alarm No 1 or R25 for alarm No 2 clockwise until the LED turns on and then slowly counterclockwise just until the LED...

Page 11: ...age is out of tolerance NOT OK The serial numbers on the control board and the sensing element must match If the serial numbers are OK then contact FCI Field Service c The Voltage is between 1 and 6 volts and changes with flow or level changes OK See item 7 Alarm Switch Point Settings d The voltage is still about 0 volts or the voltage is over 7 volts or the voltage is negative between 1 and 6 vol...

Page 12: ...e 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 Any other use is strictly prohibited without the prior written consent of FCI Visit FCI on the Worldwide Web www flui...

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