Furness controls FCO432 User manual

Please read carefully before using.
Manufactured by:
Furness Controls Limited
Beeching Road, Bexhill, East Sussex, TN39 3LG, England.
Telephone [phone]
Email: [e-mail]
Web Site: http://www.furness-controls.com
FCO432
Differential Pressure
Transmitter
Users Guide

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FCO432 Users Guide Issue 1

FCO432 Users Guide Issue 1 Page
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Table of Contents
Table of Contents..................................................................................................................................3
Revision Record....................................................................................................................................4
Safety Notes and Recommendations..................................................................................................5
Introduction ...........................................................................................................................................6
General Description.............................................................................................................................6
Enclosure.............................................................................................................................................6
Installation .............................................................................................................................................7
Mounting..............................................................................................................................................7
Pneumatic............................................................................................................................................7
Electrical..............................................................................................................................................8
Commissioning ...................................................................................................................................11
FCS541 - 400 Utility Software.............................................................................................................12
General Description...........................................................................................................................12
Installation..........................................................................................................................................12
Software Details ................................................................................................................................12
Instrument Settings ............................................................................................................................14
Menu Structure..................................................................................................................................14
Menu Navigation................................................................................................................................15
Troubleshooting..................................................................................................................................22
Error Messages ...................................................................................................................................23
Calibration............................................................................................................................................24
Recalibration using Keypad...............................................................................................................24
Recalibration using the FCS541 Utility..............................................................................................25
Calculations.........................................................................................................................................26
Pitot Tube Calculations......................................................................................................................26
Laminar Flow Element Calculation....................................................................................................28
Applications.........................................................................................................................................29
Measuring Direct Pressure................................................................................................................29
Using a Laminar Flow Element .........................................................................................................30
Using a Pitot Static Tube...................................................................................................................31
Alternative Electrical Connections....................................................................................................32
M12 (4-pole) Electrical Connection ...................................................................................................32
DIN Electrical Connection..................................................................................................................32
DIN with External Zero ......................................................................................................................33
Specification........................................................................................................................................34
Dimension Drawings...........................................................................................................................35
Basic Instrument................................................................................................................................35
Pipe Mounting Kit ..............................................................................................................................35
Wall Mounting Kit...............................................................................................................................36

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FCO432 Users Guide Issue 1
Revision Record
Issue
Date
Summary of changes
1
26-11-18
First release

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Safety Notes and Recommendations
Please read carefully.
1. All electrical supplies to the equipment must be externally fused with an appropriately rated
fuse for safety.
2. Always unplug the equipment from the supply before carrying out any servicing.
3. The air supply must be turned off before carrying out any work on the pneumatic system.
4. The air supply must not exceed that specified on the instrument or in the Test Certificate.
5. If in doubt about any aspect of safety with the equipment then contact Furness Controls
BEFORE proceeding.

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FCO432 Users Guide Issue 1
Introduction
General Description
The FCO432 is a fully configurable, industrial differential pressure transmitter. The configuration must
be carried out using either the FCS541 Utility software and cable, or the optional built in keypad. The
pressure cell is based on the unique Furness Controls capacitive sensor of proven reliability. A
microcontroller is used to control all functions of stability, such as temperature correction and display
damping. The output can be scaled as a linear or rooted function to facilitate the use of Pitot Static
Tubes or other primary flow elements. The FCO432 is suitable for industrial applications of control,
measurement and monitoring.
Features include:
Optional large character LCD display or an OLED display
Linear or rooted (Square root by default) output.
10:1 range adjustment using the Model 400 series software or optional keypad.
Optional Configurations:
2-Wire 4 to 20mA Current output
4-Wire Isolated 4 to 20mA Current output
4-Wire Isolated Voltage output
0 to 1V, 0 to 2V, 0 to 5V, 0 to 10V,
1V, 2V, 5V or 10V
Remote Zeroing Function
Zero the FCO432 with an externally fitted button, or suitable electronic circuitry.
Auto Zeroing Function
Adjustable delay between 0.0 and 24.0 hours with 0.1 hour resolution. Available to instruments
with the necessary hardware option fitted.
Dual Relay Trip Outputs
Relays can be configured to trip at pre-defined levels, or within a pre-defined pressure band.
Available to instruments with the necessary hardware option fitted.
Typical applications include:
Combustion pressure measurement and control of industrial furnaces
Air pressure measurement and control of dryers, kilns and ovens
Air flow measurement in conjunction with pitot static tubes, orifice plates or venturi
Enclosure
The instrument is housed in an IP54 rated ABS enclosure.
Pneumatic connections (fitted as standard) are for Ø4mmID push on tubing.
Optional pneumatic connections are:
⅛” BSPP Female threaded adaptor
¼” BSPP Female threaded adaptor

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Installation
Mounting
The recommended mounting position of the FCO432 is with the pressure entry ports facing directly
downwards. This helps prevent the ingress of dust and liquid.
Due to the sensitivity of lower range instruments, they should not be mounted in areas where they will
be subjected to high vibration as this could cause spurious readings.
The enclosure has four mounting holes for M4 screws, accessible with the cover removed.
Pneumatic
All pipe-work should slope downwards from the instrument to allow self-draining.
When using the instrument to measure pressure at a single point with long pipe runs the reference
port should be piped in parallel, with the pipe left open at the process end.

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FCO432 Users Guide Issue 1
Electrical
The FCO432 is fitted with a M12 connector as standard. See the “Alternative electrical connections”
section at the end of this user guide for non-standard connector information.
M12 (5-Pole) Electrical Connection
Connector type: 5-Pole M12 female, Code A, shielded, straight, field installable connector with screw
terminals and a PG9 cable gland (suitable for cable Ø4 to Ø8mmOD).
The instrument can be supplied as one of three configurations. See the rating plate on the
inmstrument for identification.
Pin functions:
Connection diagrams:
Pin
Colour
4 to 20mA
Output
Isolated
4 to 20mA
Output
Isolated
Voltage
Output
1
Red
+24V
+24V
+24V
2
Green
GND
GND
GND
3
Blue
mA+
mA-
Vout-
4
Yellow
mA-
mA+
Vout+
5
White
Remote Zero
Remote Zero
Remote Zero
5

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Connector wiring
Assembly Note
Housing alignment tabs must
be fitted into the plastic
locating slots and not the
electrical terminals

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FCO432 Users Guide Issue 1
Relay Connections (Option)
Connector type: 5-Pole M12 female, Code B, straight, field installable connector with screw terminals
and a PG9 cable gland (suitable for cable Ø4 to Ø8mmOD).
The FCO432 can incorporate a pair of relays for triggering auxiliary equipment such as alarms.
Note the relays are supplied from the +24V on the power connector.
Pin functions:
Relay states are shown for the instrument switched off.
Relay contact ratings
2A @ 55Vac/30Vdc (non-inductive load)
Pin
Colour
Relay Contact
1
Red
NO1
2
Green
NC1
3
Blue
NC2
4
Yellow
NO2
5
White
Com
The relays do not feature
any contact suppression
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