Furness controls FCO770 User manual


FCO770 Users Guide Issue 1 Page 3
TABLE OF CONTENTS
TABLE OF CONTENTS.....................................................................................................................................3
REVISION RECORD..........................................................................................................................................5
SAFETY NOTES AND RECOMMENDATIONS.............................................................................................6
INTRODUCTION................................................................................................................................................7
GENERAL DESCRIPTION...............................................................................................................................7
HOUSING..........................................................................................................................................................8
FRONT PANEL.................................................................................................................................................8
REAR ELECTRICAL CONNECTIONS.........................................................................................................10
REAR PNEUMATIC CONNECTIONS..........................................................................................................11
METHODS OF LEAK DETECTION..............................................................................................................13
DIFFERENTIAL PRESSURE DROP..............................................................................................................13
DUMP TEST....................................................................................................................................................13
BELL SYSTEM ...............................................................................................................................................14
BLOCKAGE TEST..........................................................................................................................................14
COARSE LEAK TEST ....................................................................................................................................14
AUTO PREFILL ..............................................................................................................................................14
INSTALLATION................................................................................................................................................15
GENERAL .......................................................................................................................................................15
LOCATION......................................................................................................................................................15
PNEUMATICS.................................................................................................................................................15
TEST ITEM......................................................................................................................................................16
ELECTRICAL SUPPLY..................................................................................................................................16
WIRING CONSIDERATIONS........................................................................................................................17
BASIC OPERATION.........................................................................................................................................18
MENU NAVIGATION....................................................................................................................................19
MENU NAVIGATION DIAGRAM................................................................................................................20
MAIN OPERATOR DISPLAYS......................................................................................................................20
MAIN OPERATOR DISPLAYS......................................................................................................................21
MAIN OPERATOR DISPLAYS......................................................................................................................22
GLOBAL SETTINGS MENU...........................................................................................................................30
CONFIGURE INPUTS MENU.........................................................................................................................33
CONFIGURE OUTPUTS MENU.....................................................................................................................37
I/O FUNCTIONS MENU...................................................................................................................................39
PRODUCT DATA MENU.................................................................................................................................41
TEST DATA MENU ..........................................................................................................................................42
LEAK TEST PARAMETERS..........................................................................................................................43
BLOCKAGE TEST PARAMETERS...............................................................................................................48
PERMFILL TEST PARAMETERS.................................................................................................................51
RAMP TEST PARAMETERS.........................................................................................................................53
DUMP TEST PARAMETERS.........................................................................................................................54
COARSE LEAK TEST PARAMETERS.........................................................................................................56
BATCH SETTINGS MENU..............................................................................................................................59

Page 4 FCO770 Users Guide Issue 1
UTILITIES MENU.............................................................................................................................................60
FBUS SETTINGS MENU..................................................................................................................................66
BARCODE & SERIAL NO...............................................................................................................................67
BARCODE SETTINGS ...................................................................................................................................67
SERIAL NUMBERING...................................................................................................................................70
PRINTER SETTINGS MENU..........................................................................................................................71
WARNING SYSTEM.........................................................................................................................................74
SECURITY MENU ............................................................................................................................................76
INPUT/OUTPUT CONNECTORS...................................................................................................................77
CONTROL/STATUS OUTPUTS ....................................................................................................................77
CONTROL INPUTS ........................................................................................................................................78
RS232 OUTPUT...............................................................................................................................................79
RS485 OUTPUT (OPTIONAL).......................................................................................................................81
INTERFACING TO A JIG................................................................................................................................82
CONNECTING A VENT VALVE ..................................................................................................................82
CONFIGURING FOR A DUMP TEST...........................................................................................................83
ELECTRICAL INPUT CONNECTION METHODS......................................................................................84
CONTROL INPUT CIRCUITS .......................................................................................................................85
CONNECTING TO A PLC..............................................................................................................................86
MULTI-JIG FUNCTION .................................................................................................................................87
CALIBRATE FLOW PROCEDURE...............................................................................................................88
PRESSURE DROP TO FLOW CALCULATION...........................................................................................88
OFFSET & AUTO TRACKING.......................................................................................................................90
GENERAL DESCRIPTION.............................................................................................................................90
USING AUTO OFFSET TRACKING.............................................................................................................90
PRODUCTION PROCEDURE........................................................................................................................91
TROUBLE SHOOTING....................................................................................................................................92
ERROR MESSAGES.........................................................................................................................................94
SPECIFICATION ..............................................................................................................................................96
PRESSURE RANGES .....................................................................................................................................96
LEAK RANGES...............................................................................................................................................96
DIMENSIONS ....................................................................................................................................................97
BENCH MOUNTED CASE.............................................................................................................................97
RACK MOUNTED CASE...............................................................................................................................97
RACK MOUNTED CASE...............................................................................................................................98
INDEX.................................................................................................................................................................99

FCO770 Users Guide Issue 1 Page 5
REVISION RECORD
Issue Date Summary of changes
116/05/12FirstRelease

Page 6 FCO770 Users Guide Issue 1
SAFETY NOTES AND
RECOMMENDATIONS
PLEASE READ CAREFULLY
1. Read these instructions and this users guide carefully.
2. This equipment requires a 24V, 2.5A DC power supply that must be appropriately
fused.
3. Always unplug the equipment from the power supply before servicing.
4. Do not use the equipment near water. In the event of a spillage onto the instrument
remove the power supply to minimise the risk of damage.
5. The air supply should be connected via an emergency shut off valve located close to
the instrument.
6. The air supply must not exceed that specified on the instrument or in the Test
Certificate.
7. Filters must be fitted to the air supply to remove oil and water that can damage
pneumatic components. The filters should be periodically checked and drained
as necessary. Failure to do so may invalidate the Guarantee.
The instrument air quality must be better than ISO8573.1 Class 1-4-2.
This equates to:
Particle = < 0.1micron, Dew-point = < 3°C, Oil = < 0.1mg/m3(0.1ppm)
The filter kit (Part number M1706) supplied by Furness Controls consists of a
particulate filter and a coalescing filter. This will remove solid particles to
0.01microns and oil concentration down to 0.01ppm. Neither of these will remove
water vapour and an airline drier or desiccant filter (Part number M1737) is required
for this.
8. Nylon air supply pipes must be kept away from hot areas as this can weaken the
pipe.
9. Ensure that blanking plugs on unused pilot air outputs are pushed in fully before
applying air.
10. The air supply must be turned off before carrying out any work on the pneumatic
system.
11. If in doubt about any aspect of safety with the equipment then contact Furness
Controls BEFORE proceeding.

FCO770 Users Guide Issue 1 Page 7
INTRODUCTION
G
Ge
en
ne
er
ra
al
l
D
De
es
sc
cr
ri
ip
pt
ti
io
on
n
The FCO770 is an advanced multi-function air/gas leak detector suitable for complete
component and sub-assembly testing. Its user interface incorporates a high resolution colour
graphics display with touch screen controls.
A typical leak test pressurises the test component, then detects a pressure change using a
sensitive differential pressure transducer. The instrument has internal valves to control the
different stages of the test, with user-defined times for each stage. At the end of the test time
the pressure change is compared to programmable limits to give a pass or fail result.
Test results are clearly displayed on the front panel lamps and display and can also give
electrical outputs, be printed, logged by a computer, or logged internally to be uploaded to a
computer later.
Notable features are:
VGA colour graphical display with touch screen interface.
Display modes include large text, instantaneous colour graphs, trend graphs and data
logging.
Retains up to 300 sets of test configurations for different products or components.
Each configuration may be given a meaningful title.
Continuous or batch testing. A batch status display screen shows the batch progress
with pass and fail counters.
Bar code scanner support. A bar code may be used to select the product test
parameters, enter a serial number to be included with results for printing or logging,
and to start or reset the instrument.
Programmable inputs and outputs. The standard settings may be extended or replaced
with user defined configurations for flexible jig and PLC interfacing.
Communications options for PC or PLC connection include RS232, RS485, USB and
LAN. Communications may be used for configuration and data logging.
Maintenance Early Warning System to aid planned maintenance.
Email facility. The FCO770 may be configured to send an email over the optional
LAN if a fault or maintenance warning occurs.
Data Logger able to store 1,000,000 typical results internally for later access from a
computer, including Graph plots.
Logged Data may be exported to a USB memory stick and accessed via LAN.

Page 8 FCO770 Users Guide Issue 1
H
Ho
ou
us
si
in
ng
g
The FCO770 is housed in a steel bench-top case having two extending front feet that allow
the case to be tilted so that the front panel can be seen more easily. Case extensions are
available to allow the FCO770 to be mounted in a 19” x 3U rack housing.
F
Fr
ro
on
nt
t
P
Pa
an
ne
el
l
The front control panel houses the LCD colour touch screen display, and may also be fitted
with an optional calibration port and up to two optional pressure controls.
Display
The VGA Colour LCD touch-screen display shows clear graphical screens with text in
different fonts and sizes. The touch-screen is used to directly program the instrument, and to
show operational status and result values when testing.
Result Graphic
A single area at the lower middle of the LCD screen displays the result of each test:
The red fail+ graphic indicates that the test failed with a positive leak. If
the optional second fail level is exceeded then the lamp flashes.
The green pass Graphic indicates that the test has passed.
The red fail- Graphic indicates that the test failed with a negative leak. If
the optional second fail level is exceeded then the lamp flashes.
The blinking gross leak graphic is displayed when a gross leak is
detected during stabilisation.
USB Port
(Control)
USB Port
(Data)
Calibration
Port
Optional Manual
Regulator
Colour VGA
Touch-Screen Display
On / Off
√
Pass
Fail -
+/- Gross
Fail +

FCO770 Users Guide Issue 1 Page 9
Power/Standby Button
There is a 1½ second delay when turning off to avoid accidentally switching the instrument
off. Note that this puts the instrument into a standby state; the power is not removed from the
rear connectors. Operation of this button may be disabled via the security menu.
Pressure Control (optional)
One or two optional precision pressure or vacuum regulators may be fitted to control the test
pressure. The regulator is set using the pressure control knob on the front of the instrument.
The pressure is displayed on the main display whilst the instrument is in standby. The
pressure may be checked to be within a set tolerance before allowing a test to start. If out of
tolerance the display will show either "LOW" or "HIGH" and a fault condition will occur.
Calibration Port
The self-sealing calibration port allows for easy checking of the instruments calibration
without the need to connect into the test lines. The calibration port is intended for use with
the FCO210 Microcalibrator. The same port can also be used to measure the test pressure
during the fill operation using a calibrated pressure instrument. Pushing the connection plug
into the port connects the calibration equipment. The button on the top of the port must be
pressed to release the plug. Plugs can be obtained from Furness Controls or their distributors,
part No A4667.
USB-A Port (Data)
The front panel USB-A may be used to read and write to many types of devices including
memory sticks where the transfer of logged data or instrument firmware updates can be
performed.
USB-B Port (Control)
The front panel USB-B port may be used to connect a PC for data collection, instrument
configuration, etc. Note that a device driver for the USB port may need to be installed on
your PC.

Page 10 FCO770 Users Guide Issue 1
Multi-purpose USB-A
socket for various
devices and functions
R
Re
ea
ar
r
E
El
le
ec
ct
tr
ri
ic
ca
al
l
C
Co
on
nn
ne
ec
ct
ti
io
on
ns
s
COM24 2322 2120 1918 1716 1514 13COM 0V24V
COM12 1110 98 76 54 32 1COM 0V24V
0V24V 0V+1718 1920 2122 2324 2526 2728 2930 3132
0V24V 0V+12 34 56 78 910 1112 1314 1516
0V
24V
24V 18VA
LAN
RS232
ISOLATED
RS485
5
4
3
2
1
INPUTSOUTPUTS
24V Power Connector
The external 24V DC supply connects via this 2 way detachable screw-terminal. The
Instrument is protected against reverse polarity and has an internal auto-resetting fuse. The
Furness Controls 24V supply is grounded. If a different supply is used it must be grounded.
Input Terminals
The input terminals are used for jig interfacing and when the instrument is configured for
remote control. The terminal block is detachable. The inputs may be wired for active high or
active low operation for easy interfacing to a PLC or other control system. The standard
instrument has twelve user-programmable inputs, with an option for an additional twelve.
Output Terminals
The active high outputs may be used for results and status indication and jig control etc. The
terminal block is detachable. The instrument has sixteen outputs as standard with an option
for an additional sixteen. All outputs are user-programmable for a wide range of applications.
RS232 Plug
The 9-way RS232 plug can be used for printout, to connect a bar code scanner, or to allow
the instrument to be set-up, controlled, and results to be collected from a remote computer or
PLC.
RS485 (optional)
The RS485 interface allows the instrument to be set-up and controlled and for results to be
collected from a remote computer or PLC. RS485 is a multi-drop interface allowing a number
of instruments to share the same communications link. This is unavailable for use when the
LAN is selected.
Optional additional
in
p
uts/out
p
uts
LAN1 LAN2
Optional
Isolated
RS485
Optional Additional
Communications
24V 60VA
LAN Port for direct
access to the
FCO770 file system
LCD Screen content
can be displayed
directly onto a VGA
display.

FCO770 Users Guide Issue 1 Page 11
USB-A socket
Various functions can be performed through this USB port such as writing logged data to a
memory stick or updating instrument firmware..
LAN1 (optional)
The LAN1 (Local Area Network) interface allows the instrument to be set-up and controlled
and for results to be collected from a remote computer or PLC. This is unavailable for use
when the RS485 interface is selected. The use of the LAN interface requires detailed network
knowledge and is documented separately from this user guide.
LAN2
The LAN2 interface will be implemented to allow quick transfer of logged data directly to a
PC as well as other types of instrument administration.
R
Re
ea
ar
r
P
Pn
ne
eu
um
ma
at
ti
ic
c
C
Co
on
nn
ne
ec
ct
ti
io
on
ns
s
-+
TEST
Pneumatic Outputs
P1 (Jig) P2 (Vent)
P3 P4 P5
AIR SUPPLY
MIN. 5BAR/MAX. 10BAR
REGULATOR
SUPPLY REGULATED
AIR IN
REGULATED
AIR OUT
"Test -", "Test +" Ports
The 'Test -' and Test +' ports are female 1/8" BSP threaded to allow for a variety of connector
types. Connections to these ports must be made using suitable sealing compounds to obtain
leak tight joints. The 'Test +' port is connected to the test item or test jig. It may be necessary
to connect a volume to the 'Test -' port (also known as the reference port) to optimise the test
cycle.
Air Supply Port
External filtering must be provided. See “Safety notes and recommendations”
The air supply port is used to operate the instruments internal valves. It accepts 6mm O/D
tubing. Clean dry air is required at a pressure of between 5bar (72PSI) and 10bar (145PSI).
Regulator Supply
External filtering must be provided. See “Safety notes and recommendations”

Page 12 FCO770 Users Guide Issue 1
When the optional internal pressure regulator is fitted the regulator supply pressure should be
at least the test pressure maximum rating plus 1 bar, and not more than 16 bar for standard
instruments. The regulator supply port accepts 6mm O/D tubing. For vacuum instruments this
is the vacuum supply port.
Regulated Air Out
When the optional internal pressure regulator is fitted, this is its regulated output. The
regulated air out port accepts 8mm O/D tubing. The connection is normally linked to the
regulated air in port if only the leak detectors internal regulator is to be used. Alternatively, a
vacuum pump can be fitted between the regulated air out port and the regulated air in port, or
external pressure sources may be switched in.
Regulated Air In
External filtering must be provided. See “Safety notes and recommendations”
This is the test pressure supply port. Clean dry air is required at a pressure that must not
exceed the maximum test pressure rating. The regulated air in port accepts 8mm O/D tubing.
Jig Pilot (P1)
This is primarily intended to provide pilot air to control jig clamps, usually via a 5-port valve
and an air cylinder. The port accepts 4mm O/D Nylon tubing. The jig pilot is activated at the
start of a test and deactivated when the test is reset after the vent time. The instrument may be
configured to use a sensor to detect jig closure. There is also an adjustable timer to allow time
for the jig to close before applying test pressure. See the I/O Configuration / inputs menu. If a
Jig Pilot is not required then the pneumatic output may be programmed for other uses.
Vent Pilot (P2)
The vent pilot port accepts 4mm O/D tubing and provides pilot air for an external vent or
exhaust valve. This is active during the test cycle. An external spool valve is required for the
venting function to be implemented. In standby and at the end of a test the output is turned
off causing the test item to be vented. This pneumatic output may be programmed for other
uses if a vent pilot is not required.
P3, P4, P5 (optional)
These three optional pneumatic outputs may be programmed for a variety of applications.
Some of these ports may not be available if used for internal valves, e.g. for functions such as
air saving or dual regulator selection.

FCO770 Users Guide Issue 1 Page 13
METHODS OF LEAK DETECTION
D
Di
if
ff
fe
er
re
en
nt
ti
ia
al
l
P
Pr
re
es
ss
su
ur
re
e
D
Dr
ro
op
p
The test item (or the test item plus a reference volume if the test item has a large volume) is
filled to a set pressure/vacuum for sufficient time for the pressure/vacuum to become stable.
The pressure supply valve is then closed, and the test item and reference are connected to the
two sides of the differential pressure module.
Any leak will cause a pressure difference across the differential pressure module and the
resulting output is used to display the leak. A leak on the Test -ve port will show as a -ve
leak.
Leaks may be displayed as a flow reading rather than differential pressure. The FCO770
measures the leak as a pressure drop and then calculates the flow reading. The calculation
relies on the test volume being known as well as the pressure drop in a given time.
Alternatively a known leak can be connected to the test item and the volume automatically
calculated from this value. The advantage of using flow readings is that the test time is not so
important (a minimum of 0.3 seconds is recommended). As many leak specifications are
written in flow units it is easier to verify actual readings against the specification. Flow
conversions are carried out when the leak units are set to CC/S, CC/M, CC/H, CMMS,
mL/M, L/M, or mbLs.
D
Du
um
mp
p
T
Te
es
st
t
This is a variation of the differential pressure drop test that is used to test sealed items with a
test jig forming a chamber around the test piece. Additional valves are required for this test
Initially a charge (dump) volume is prefilled to a known pressure. When the test is started, the
charge volume is first isolated from the pressure source, and then connected to the test
chamber before performing a standard differential pressure drop test.
The actual test pressure depends upon the prefill pressure and the relative volumes of the
charge pressure and test chamber. If the test piece has a gross leak the test pressure will not
be as expected which is detected by the pressure tolerance check. Smaller leaks are detected
by the differential pressure drop test.
Variations in the prefill pressure may be compensated for to allow a more sensitive gross leak
check. Note that when compensation is enabled the displayed test pressure is the
compensated value, not the measured value.
The pneumatic configuration for a dump test is shown on page 83.

Page 14 FCO770 Users Guide Issue 1
B
Be
el
ll
l
S
Sy
ys
st
te
em
m
The bell or collection chamber is used to enclose the test item or a particular part of it. The
test item is then continuously pressurised during the test cycle from a separate pressure
source.
The bell chamber is connected to the "Test -" port of a standard pressure drop leak detector.
If the test item leaks, the air will be captured within the bell and the pressure in it will
increase. The pressure increase will be shown on the display as a positive leak reading.
By applying a low pressure to the bell from the leak detector the integrity of the bell can be
checked. If a seal is damaged or missing the FCO770 it will show as a negative leak reading.
Since both positive and negative fail levels can be set on the FCO770, the system guarantees
that every test is valid.
B
Bl
lo
oc
ck
ka
ag
ge
e
T
Te
es
st
t
This test does not use the differential pressure sensor, but checks the actual pressure in the
test item. There are two options for the blockage test:
1) The test item is pressurised to the required level and then isolated from the source. During
the test, the pressure must fall below a pre-set level to indicate that the product is not blocked.
A second fail level may be used to check that the flow was not too great indicating a large
(gross) leak.
2) For some test items the pressure may be lost too quickly to be able to discriminate with
method 1. In this case we have an option to continue filling during the test stage so that a
back-pressure test is performed.
C
Co
oa
ar
rs
se
e
L
Le
ea
ak
k
T
Te
es
st
t
This test does not use the differential pressure sensor, but checks the actual pressure in the
test item. The test item is pressurised to the required level and then isolated from the source.
Test pressure readings are shown relative to the starting pressure. A pressure drop is shown as
a positive leak. There are separate fail levels for positive and negative leaks.
A
Au
ut
to
o
P
Pr
re
ef
fi
il
ll
l
The auto prefill function is useful where the test item is slow to fill or has a restriction in the
fill path. It may also be used as a cost-effective way of testing at different pressures without
manual adjustment or an auto-regulator. Auto prefill may be used with differential pressure
leak tests, blockage tests and coarse leak tests.
The method is to apply a pressure that is larger than the required test pressure, normally via a
restriction. When the pressure reaches the set prefill pressure level, the pressure source is
disconnected. The fill stage allows any residual test line pressure to finish filling the test item;
this is important when the test item has a restricted fill path since the measured pressure
during the prefill stage may be quite different from the final test pressure.

FCO770 Users Guide Issue 1 Page 15
INSTALLATION
G
Ge
en
ne
er
ra
al
l
Unpack the instrument carefully and check for transit damage. If there is any damage please
report it immediately.
Check that all the necessary fittings are present as shown on the packing sheet
L
Lo
oc
ca
at
ti
io
on
n
The leak detector should be
•close to the test item to keep the test pipes as short as possible.
•installed away from any sources of temperature change; e.g. heaters and draughts.
•positioned away from high power machines such as welders.
•positioned in an area free from vibration.
P
Pn
ne
eu
um
ma
at
ti
ic
cs
s
External filtering must be provided. See “Safety notes and recommendations”
Supply air should be dry and clean. Contamination by oil and water from the air supply will
damage the instrument and invalidate the guarantee. Drain off any water from an air line
tapping point before connecting the instrument. Disconnect the instrument during periods of
factory shutdown and drain the air line before reconnection.
i) Connect a clean air supply of 5-10 bar to the Air Supply Port. This supply is always
required to operate the internal valves.
ii) Connect a clean dry air supply at the test pressure to the Regulated Air In port. If the
optional internal regulator is fitted then the regulated air in port is normally connected
to the regulated air out port, and the test supply air is connected to the regulator
supply port at a pressure of at least 1 bar above the maximum test pressure.
iii) The item to be tested or the test jig needs piping to the "+" Test port. If a reference
volume is being used this must be piped to the "-" Test port, otherwise the port must
be blanked. For commissioning and self-checking, you must be able to blank the ports
using the blanking caps provided. For vacuum tests it is recommended that the test
port should be protected with a vacuum filter (part number M1049) – this is supplied
loose with instruments supplied specifically for vacuum tests.
iv) If the test item requires venting after a test, then connect a vent valve between the test
item and the test port, with the valve being driven from the VENT PILOT
(recommended for large volumes and or high pressure).
v) If the jig is to be operated by the instrument controlled air supply, connect it to the
JIG PILOT port. If this port is not used then it should be blanked off with a plug.
NOTE: All connections to the 'Test +' or the 'Test -' ports must be leak tight. Metal to metal
connections should be sealed using a known good sealing compound, not P.T.F.E. tape. The

Page 16 FCO770 Users Guide Issue 1
tubing used must be metal or thick walled nylon. For small components up to 50cc it is
helpful to use smaller diameter tubing, e.g. 4mm or 3/16" o.d.. Do not use push-in type
fittings on the test lines as they are unreliable and may leak.
T
Te
es
st
t
I
It
te
em
m
The condition of the test item and its sealing arrangement will directly affect the reliability
and repeatability of all leak test results.
•The test item must be clean and free of any water or loose dirt.
•Test items must be at a stable temperature. This may necessitate storage at the test
area prior to testing to allow it to settle to ambient conditions.
•All seals onto the test item must be rigid as any flexing during the test will change the
test volume and give false leak readings.
•The test item must be clamped in a way that prevents distortion of the test piece.
E
El
le
ec
ct
tr
ri
ic
ca
al
l
S
Su
up
pp
pl
ly
y
Connect a suitably fused 24V DC supply to the instrument. The instrument must be
connected in compliance with all local electrical regulations.
The instrument will immediately start its power up sequence which usually takes about 20
seconds. The instrument is ready to use when a screen similar to below is shown.
Electrical Control
To ease commissioning the instrument can be run from the Touch Screen soft buttons. The
Remote Control option in the Functions menu must be set for the appropriate control inputs
(see Remote Control in Menu Details).
Once the leak detector is operating satisfactorily it may then be connected to a different
controller if required.
Electrical Outputs
The outputs are active high transistors (i.e. switching the positive supply). The current per
output must not exceed 120mA.
If it is necessary to have mains operated lamps or any other high voltage or heavy current
device, the outputs should be used to drive external relays.

FCO770 Users Guide Issue 1 Page 17
W
Wi
ir
ri
in
ng
g
C
Co
on
ns
si
id
de
er
ra
at
ti
io
on
ns
s
Electrical Interference
Ignition transformers, arc welders, mechanical contact relays and solenoids are all common
sources of electrical noise in an industrial environment and therefore the following guidelines
must be followed:
Noise generating devices such as those listed should be mounted in a separate enclosure. If
this is not possible, separate them from the instrument by the largest distance possible.
Provide separate cable runs for communication lines, inputs and outputs. If they run parallel,
there should be as much separation between the groups as possible.
RS232 and RS485 connections must use shielded cable. This will reduce the level of
electrical noise induction on the wires. Lead lengths should be kept to a minimum. The shield
should be grounded at one end only.
Inductive loads
When inductive loads such as relays or solenoids are switched off, they can produce a very
large negative voltage spike (over a thousand volts!). If the cable feeding the inductive load is
bundled with other cables, the voltage can be induced into the other cable and can cause
unpredictable results. It is very important that any inductive load is suppressed to prevent
these voltages being generated.
The transistor outputs from the FCO770 are fitted with suppression diodes and it is not
necessary to add further suppression to the inductive load. However, if an inductive load is
being activated from a PLC or another relay, then suppression must be fitted. This is usually
achieved by fitting a diode in parallel with the load as shown.
DC (-)
DC (+)
PLC output
or relaycontact
Inductive load
Protection diode
(Typically1N4003)

Page 18 FCO770 Users Guide Issue 1
BASIC OPERATION
The FCO770’s settings may be viewed or set by pressing the ‘Menu’ soft button to toggle
onto the instruments menu screen. The Menu button can be pressed at any time to return to
the instrument main screen. See menu screen shot below:
The FCO770 menu consists of:
GLOBAL SETTINGS Instrument configuration settings that apply to the
whole instrument and may affect all product or test
data.
CONFIGURE INPUTS Program the electrical inputs.
CONFIGURE OUTPUTS Program the electrical outputs.
I/O FUNCTIONS Program the pneumatic outputs and timer functions.
PRODUCT DATA Identify the product to test and define the test steps to
perform.
TEST DATA Specify the type of test to perform and define its
timings, levels and limits.
BATCH SETTINGS Configure batch control, or disable it for continuous
testing.
UTILITIES Contains various utilities for calibration, diagnostics,
copying & printing data, instrument updates etc..
BARCODE & SERIAL No. This menu is used to configure the port to use for a
barcode reader and define how to use the barcode. The
serial number settings are also in this menu since they
may depend on the barcode.
PRINTER SETTINGS When printed results are required, this menu is used to
configure the printer port and define what data is to be
printed.
WARNING SYSTEM Set the limits for the maintenance early warning
system, and view the latest values.
SECURITY You may set a pass code to lock the menu settings to
stop unauthorised changes.

FCO770 Users Guide Issue 1 Page 19
M
Me
en
nu
u
N
Na
av
vi
ig
ga
at
ti
io
on
n
A comprehensive touch screen menu entry system makes it easy to quickly navigate to and
change desired settings. To expand entries for a desired menu, simply use the scroller touch
bar to position the menu, then touch your chosen menu heading to show its options as below:
The gray outlined rectangular boxes contain instrument parameters that can be viewed or
edited by touching within the outlined area.
Some settings may be protected by a security code. When security is enabled it is possible to
view the settings but you will be prompted to enter the security code if you try to alter
settings.
Text Entry
The FCO770 has a number of menus that have text to enter, e.g. Test I/D, Product I/D etc.
When editing text you will see a dialogue input box like this:
The text to edit appears highlighted blue in the cream coloured window surrounded by a
customised QWERTY keypad. When text is highlighted, any attempt to type will
immediately overwrite text with what you type. To edit the text, simply touch the highlighted
area at the position you wish to edit and the highlighting will vanish.
Press the ‘ESC’ button at any time to cancel the edit window and any changes made.
Press the ‘QWERTY ABCDE’ button to switch between respective keypad layouts.
Press the ‘¨’ or ‘§’ button to delete from the right or left respectively.
Press the ‘ABC #$@’ button to switch between letters/numbers and symbols.
Press the ‘×’ button to toggle the shift and switch the case of the displayed letters.
Press the ‘ ’ ‘ button to Enter (accept) the edits you make.

Page 20
M
Me
en
nu
u
N
Na
av
vi
ig
ga
at
ti
io
on
n
D
Di
ia
ag
gr
ra
am
m
BARCODE I/D
CHECK FILL PRESS.
PEAK VALUE
A
UTO PREFILL
A
UTO PREFILL
PREFILL TOLERANCE
PREFILL PRESSURE
PREFILL TIME
LEAK UNITS
PRESSURE UNITS PRESSURE UNITS PRESSURE UNITS PRESSURE UNITS
A
.Z. DELAY (S)
PRESSURE CORRECTION
CONTINUOUS FILL
PRESSURE CORRECTION *
GLOBAL
SETTINGS
TEST
DAT
A
TEST PRESSURE
TEST PRESSURE
PRESSURE TOLERANCE
PRESSURE TOLERANCE
* DUMP TEST ONLY
VENT PREFILL TIME **
LEAK AT END OF TEST
I/O FUNCTIONS
TIMER 2 TRIGGER
TEST I/D
CHECK STANDBY PRESS.
CHECK STANDBY PRESS.
OPERATION
REGULATOR 2
REGULATOR 2
LANGUAGE
VENT TIME
VENT TIME
RESET DELAY (S)
STABILISATION TIME
RESET ON PASS
TEST TIME
TEST TIME
RESET ON FAIL
CONFIGURE
TIMER 1 (S)
TEST TYPE
PREFILL TOLERANCE
A
LTER PRODUCT
FILL TIME
FILL TIME
(BLOCKAGE or COARSE)(LEAK or DUMP)
- FAIL 2
ENABLE FAIL 2
PRODUCT
DATA PRODUCT I/D
NUMBER OF STEPS
DELAY BETWEEN STEPS
STEP 1
CONTINUE ON }Repeat for all steps
PREFILL TIME
ENABLE PREFILL
TIMER 2 (S)
CONFIGURE
TIMER 1 TRIGGER
COMBO 1 FUNCTION
COMBO 1 INPUT 1
COMBO 1 INPUT 2
FAIL HIGH
+ FAIL 1
LK RESOLUTION (DIGITS)
FAIL LOW
- FAIL 1
PR RESOLUTION (DIGITS)
+ FAIL 2
FILL ON FAIL
END ON FAIL
PREFILL PRESSURE
PRODUCT NUMBER
OFFSET
VOLUME
STATUS LINE
COMBO 2 FUNCTION
COMBO 2 INPUT 1
COMBO 2 INPUT 2
COMBO 3 FUNCTION
COMBO 3 INPUT 1
COMBO 3 INPUT 2
COMBO 4 FUNCTION
COMBO 4 INPUT 1
COMBO 4 INPUT 2
OUTPUTS 1-8
PNEUMATIC 1
OUTPUTS 9-16
PNEUMATIC 2
OUTPUTS 17-24
PNEUMATIC 3
OUTPUTS 25-32
PNEUMATIC 4
USER OUTPUT A
PNEUMATIC 5
USER OUTPUT B
USER OUTPUT C
USER OUTPUT D
USER OUTPUT E
USER OUTPUT F
USER OUTPUT G
USER OUTPUT H
START/RESET
VENT SENSOR
JIG SENSOR
JIG DELAY (S)
INPUTS 1-4
INPUTS 5-8
INPUTS 9-12
INPUTS 13-16
INPUTS 17-20
INPUTS 21-24
USER INPUT A
USER INPUT B
USER INPUT C
USER INPUT D
USER INPUT E
USER INPUT F
USER INPUT G
USER INPUT H
FEEDBACK A-H
FEEDBACK A-H
FEEDBACK TIMEOUT
FEEDBACK TIMEOUT
TRACK FILTER TEST OUTPUT H
TEST OUTPUT H
TEST OUTPUT
A
TEST OUTPUT
A
EXTERNAL FAIL
EXTERNAL FAIL
TEST PRESSURE
PRESSURE TOLERANCE
CHECK STANDBY PRESS.
REGULATOR 2
VENT TIME
(PERMFILL)
FEEDBACK A-H
FEEDBACK TIMEOUT
TEST OUTPUT H
TEST OUTPUT A
SENSITIVITY
REGULATOR 2
VENT TIME
TEST TIME
HOLD OFF
FAIL HIGH
FAIL LOW
FEEDBACK A-H
FEEDBACK TIMEOUT
TEST OUTPUT H
TEST OUTPUT
A
(RAMP) TEST TIME
FEEDBACK A-H
FEEDBACK TIMEOUT
TEST OUTPUT H
TEST OUTPUT A
(INPUT/OUTPUT)
EXTERNAL FAIL
PRODUCT SELECTED
TEST SELECTED
** STAB PREFILL TIME FOR DUMP TEST
INPUTS
OUTPUTS
Table of contents