London Electronics INTUITIVE INT4-H Installation instructions

1
Revision:1
Dated: 15 March 2023
Software version F00-33
Panel mounting clock / timer
Model INT4-H
Installation & Operating Manual
!
Caution: There is a risk of electrical
shock if this instrument is not properly installed
Caution: Risk of danger: Read the whole
manual before you install this meter
London Electronics Limited
Thorncote Road, Near Sandy, Bedfordshire SG19 1PU
Tel [phone] Fax [phone]
www.london-electronics.com [e-mail]
INTUITIVE

2
.Warranty
We warrant this product against defects in materials or workmanship for a period of three
(3) years from the date of purchase.
In the event of a defect during the warranty period, the unit should be returned, freight (and
all duties and taxes) prepaid by the Buyer to the authorised distributor from where the unit
was purchased.
The Distributor, at its option, will repair or replace the defective unit. The unit
will be returned to the Buyer with freight charges prepaid by the distributor.
LIMITATION OF WARRANTY
The foregoing warranty shall not apply to defects resulting from:
1. Improper or inadequate maintenance by the buyer.
2. Unauthorised modification or misuse.
3. Operation outside the environmental specification of the product.
4. Mishandling or abuse.
The warranty set forth above is exclusive and no other warranty, whether written or oral is
expressed or implied. We specifically disclaim the implied warranties of merchantability
and fitness for a particular purpose.
EXCLUSIVE REMEDIES
The remedies provided herein are the buyer’s sole and exclusive remedies.
In no event shall we be liable for direct, indirect, incidental or consequential damages
(including loss of profits) whether based on contract, tort or any other legal theory.

3
Warnings 4
Introduction 5
General Description 6
Panel mounting & Installation - Class II 7
WiringAdvice 8
Connections 9
Installation hints for best performance 10-11
Easy or advanced menu mode 12
Display Brightness 13
Mode setting 14
Basic clock configuration 15
Timer mode settings 16
RTC setup method 17
Factory defaults 18
Logic input functions 19
Logic input connections & front buttons 20
Menu timeout adjustment 21
Reverse / Mirror display setting 22
Bootup Routine choices 23
Language selection for user interface 24
Error Codes and fault finding 25
How to install option boards 26
Waste Electrical Electronic Equipment (WEEE) 27
Equipment Specifications 28
Record of Revisions 29
Declaration of Conformity 30
Separate manuals for options
Alarm option settings See Alarm manual *
Analogue output option settings See Analogue manual *
Serial output option settings See Serial manual *
Real Time Clock setting See Serial manual *
* Need a manual urgently?
You can download manuals from our website.
Contents

4
Safety First ..............Don't assume anything............. Always double check.
If in doubt, ask someone who is QUALIFIED to assist you in the subject.
Warnings
Please carefully read this manual and all warnings. Install the meter ONLY when you are sure
that you’ve covered all aspects.
Where the product is intended for “UL” installations, removal or
addition of option boards is not permitted.
Check that the model number and supply voltage suit your application before
you install the meter.
Connect the meter according to current IEE regulations, IEC61010 &
NFPA:70 National Electric Code in USA.
This meter is for Installation class II service only. This means it
has exposed electrical and power terminals. You must install it in a
suitable fire enclosure which will also protect users from electric shock
We designed this meter for Pollution-Degree 2 environments only.
Power supplies to this equipment must have anti-surge (T) fuses rated at 400mA for
230V supply, 400mA for 110V supply or 2A for DC supplies in the range 11-30VDC.
Only Siba fuses in series 189500, cULus listed according to file #E167295 are
accepted for this service under the terms of UL listing.A switch or circuit breaker, clearly
marked as a disconnecting device, must be included close to the installation.
Don’t touch any circuitry after you have connected the meter, because there may be
lethal voltages on the circuit board.
Only adjust on-board switches or connections with the power turned off
Make sure all screw terminals are tight before you switch the meter on.
Only clean the meter’s front with a soft damp cloth. Only lightly dampen with water.
Do not use any other solvents. The behind-panel case may be cleaned with a dry cloth
only, use no liquid or solvent on it.
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!
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5
Introduction
Please contact us if you need help, if you have a complaint, or if you have suggestions to help
us improve our products or services.
If you contact us about a product you already have, please tell us the full model number and
serial number, so that we can give you accurate and fast help.
This product has a 3 year warranty. We will put right or replace any meter which is faulty
because of bad workmanship or materials. This warranty does not cover damage caused by
misuse or accident.
If you return a unit for repair, please include a detailed description of the problem, and the
name of a contact who we can refer to for any questions. Please mark for the attention of the
QA Department.
IMPORTANT
If this equipment is important to your process, you may want to buy a spare to cover possible
failure or accidental damage in the future.
This is because during factory shutdown periods, you may have to to wait several weeks for
an equivalent replacement, or we may have no stock at the time you urgently need it.
You may also need to pay extra carriage charges if you want a fast, guaranteed courier service.
Warranty repairs or replacements are usually returned with a standard courier service.
We do not offer compensation for losses caused by failure of this instrument.
We thought you’d prefer to know about possible delays and extra charges now, rather than
during a panic. A spare unit could help to avoid these issues.
We always try to improve our products and services, so these may change over time. You
should keep this manual safely, because future manuals, for new designs, may not describe
this product accurately.
We believe these instructions are accurate, and that we have competently designed and
manufactured the product, but please let us know if you find any errors.

6
General Description
This series of meters accepts industrial sensors to allow various physical measurements to
be made, such a weight, temperature, pressure, humidity etc. Different models are available
for different sensor types.
The main function of this series is to give a numeric readout of the variable being monitored.
Most models include an excitation power output, to power the sensor directly.
Various optional output modules are also available to give alarm relay outputs, analogue
output or digital communications, or any combination of these options.
Meters are programmed using front panel pushbuttons. The buttons may be locked with a
rear switch.
Meters have two power supply options : 100-240 VAC or 11-30VDC
These meters are designed to mount into a protective enclosure which will protect users from
contact with power and signal wiring.
These units must be installed fully assembled, and must be installed according to local electrical
installation rules. When properly installed, they provide ingress protection to IP65 / NMA4X
from the front
Safety
Obey all safety warnings in this manual, and install the meter according to local wiring and
installation regulations. Failure to follow these guidelines may cause damage to the meter,
connected equipment, or may be harmful to personnel.
Any moving mechanical device controlled by this equipment must have suitable access guards
to prevent injury to personnel if the meter should fail.
!
Caution: There is a risk of electrical
shock if this instrument is not properly installed
Caution: Risk of danger: Read the whole
manual before you install this meter

7
Panel Mounting and Installation - Class II
Install the meters in a suitable protective electrical control enclosure according to local wiring
regulations. See specifications for maximum allowable temperature in enclosure. Allow
adequate air circulation.
888888
92mm +1mm -0mm
45mm +1mm -0mm
Panel cutout
Installing into front of panel
Remove the two rear bracket
screws and safely store them
and the U-Bracket for later fitting.
Gasket
Gasket
Front surface
of enclosure
Front surface
of enclosure
Front surface
of meter
U-Bracket
Bracket screw (1 of 2) Left side of meter case
U-Bracket
Bracket screws
U-Bracket
Bracket screws
Slide the meter, with gasket
into the panel cutout
Securing into the panel
Re-fit the U-Bracket and tighten the bracket
screws to firmly clamp the meter in place.
Check that the gasket is evenly pinched
between the meter’s front bezel and the
enclosure front
Ventilation
There should be sufficient ventilation in the
enclosure to ensure that the meter’s case is
always kept to less than 60C.
Meter Spacing.
Meters should be spaced apart sufficiently
to allow a free flow of ventilation air around
the meters, such that no part of the case will
exceed 60C
Side view of meter installed in panel

8
Wiring Advice
This meter uses detachable screw terminal connectors. Refer to the wiring diagram on the
following page for the correct positioning of each wire.
The conductors you use must be suitable for the meter’s temperature, current and voltage
rating, which is broadly described as follows:-
Cable Temperature Rating
All cables must be rated for operation up to 90C continuous.
Cable gauge and screw tightness
The connectors on this instrument can accept conductors up to 16 gauge AWG / 1.5mm2
c.s.a. The minimum cross sectional area shall be 22 gauge AWG / 0.5mm2 . Tighten screw
terminals to 7.0 lb/in torque / 0.8 Nm torque.
Cable insulation voltage rating
Cables shall have an insulation voltage rating of at least 380V continuous.
Wire preparation:
We recommend multi-strand wire, because it withstands vibration better than single strand
cable. Pull the wire firmly after you make the connection to confirm it is tight.
Use screened cable for all signal and control wiring and connect the screen to earth at the
destination end only. Route signal cabling away from power cabling and relay switching
cabling, to avoid electrical noise interference.
U-Bracket
No bare wires exposed
Terminal screwdiver - 3mm blade
Strip back
5mm max.
Outside
enclosure
Inside
enclosure
Side view of meter
Detachable
connectors
125mm behind panel

9
Connections
Alarm Lock Calib’n Lock
Analog
o/p option
Serial Data
o/p option
0, 2 or 4 Alarm Relay
o/p options
Common
Start Stop
Reset
Logic Inputs Power
Signal I/P & Excitation
Demand
Common
Data A+/Rxd
Data B- /Txd
nil nil
- +AL1 AL2 AL3 AL4
N L
- +
B A Comm Enable
TxD RxD Comm Enable
R S 2 3 2
R S 4 8 5
Rated 2A 250VAC Resistive
Remote
contacts
(5V DC 1mA)
Warning:
Disconnect all power before
exposing the rear of the meter
Connectors and options
Connectors may be present
even if outputoptions are not
installed. Referto rating label
to seeinstalled options.
!
Class II Installation
Not used
Fuse Switch
Circuit breaker
Power
Customer-supplied disconnection
and overload protection devices
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25 26 27
Enable is used in mode C1
to activate or de-activate the
RS232 or RS485 serial output.
Connect to Comm to continually
transmit data.

10
Installation hints for best performance
This section offers several suggestions which will help you get the best performance from
your measurement system.
The logic input signals are comparitively small and can easily be corrupted by the
comparatively high level of electrical noise which can be created by electrical machinery
such as motors, welding systems, discharge lighting, AC power inverters and solenoids.
These steps will ensure you get the best possible performance from your system.
1. Use good quality screened signal cable, with twisted pairs. Belden 8777NH,
Belden 9503 and AlphaWire 6010C are good choices, available from many
electrical distributors.
2. If you are using multi-pair twisted cable, each pair should be dedicated to a single
display as shown opposite, for maximum noise immunity.This will ensure that any
electrical noise induced in the cable is properly cancelled. Mixing destinations
carelessly amongst the twisted pairs can actually worsen noise performance.
3. The cable should be routed away from noisy wiring and devices such as power
feeds from inverters, discharge-lighting cables, welder cabling etc, and should
preferrably be routed in a dedicated low voltage signalling/instrumentation conduit
or cable tray.
4. Screened cable should be earthed at the display end only.
5. All wires and screens coming out of the screened cable should be kept as short
as possible to minimise pickup of noise.
6. If you are using barriers, you should earth your screen as shown below, paying
particular care that you do not earth both ends of any run of of cable.
Barriers
Connect
screen to
earth ONLY at
this end.
Connect
screen to
earth ONLY at
this end.
Do not
connect
screen at
this end.
Do not
connect
screen at
this end.
Length of screened cable Length of screened cable
Sensor
Hazardous Area Safe Area
Clean Earth
Logic Input Power Input
Display connections
Sensor connections Barrier connections
EARTH

11
Display 1 Display 2 Display 3
Logic 1 Logic 2 Logic 3
When using multi-core screened cable to connect several displays to several sensors, please be sure to use one twisted pair for each display and sensor. Do NOT use a wire from one pair for signal positive and a wire from another pair for signal negative, as this will prevent the twisted cables form cancelling any induced electrical noise, and can couple noise from one channel to another.
Displays
Sensors

12
Easy or Advanced menu mode
You can choose from two menu modes.
1. Easy Mode - This limits the menu to the most commonly required features, in order
to make it less complex and easier to navigate. This is the default level.
2. Advanced Mode - This gives you access to all available menu features.
Each menu feature in this manual has a heading note to tell you whether it
is available in Easy or Advanced mode.
How to choose menu mode:-
!
!
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset Lockout Switch must be OFF
Press together briefly
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press briefly
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press to toggle
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press to accept
1
2
3
4Done!
Each press of the DOWN
arrow, or UP arrow will
alternate between showing
Adv. or EASy
This feature is available in Easy and Advanced Modes
OFF
Circuit board ON
Press OK a few times, until you
see Adv. or EASy
Press OK to select your choice.

13
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Display Brightness
You can adjust the display brightness at any time, provided the display is locked.
Lockout Switch must be ON
Press 3 seconds
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press for 3 seconds
Display shows briL
Each press of the UP button will select a
new brightness level.There are 7
brightness levels to choose from.
(Default = Full brightness)
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press to accept
1
2
3Done!
!
!Did you know, we make this display in two brightness versions?
Standard brightness for use inside, and Daylight Viewing for use outside
in direct sunlight. The Daylight Viewing version has suffix -DLV in its part
number.
This feature is available in Easy and Advanced Modes
OFF
Circuit board ON

14
1
2
This feature is available in Easy and Advanced Modes
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Done!
Press to accept
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Display shows the available modes
CL.
dd.MM.YY
MM.dd.YY
dAy.Cnt
HH.MM
MM.SS
SSSS
SSSSS.t
MMMM
HH.MM.SS
Clock Mode
Calendar Mode - dd:MM:yy
Calendar Mode - MM:dd:yy
Timer Mode - Days (eg days since last accident)
Timer Mode - HH:MM
Timer Mode - MM:SS
Timer Mode - SSSS
Timer Mode - SSSSS.t
Timer Mode - MMMM
Timer Mode - HH:MM:SS
Lockout Switch must be OFF
OFF
Circuit board ON
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press together for 3 seconds
Mode Setting
The display’s calendar and internal clock will need to be set whenever the battery is
renewed, and the clock may need to be set from time to time, if it is not synchronised to a
master timesource, such as our ASR-GPS
3

15
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Basic clock configuration
If the display is being used in Clock Mode, the following basic configurations will be
available ....
Lockout Switch must be OFF
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press to scroll through the available
mode choices and press OK to
select.
1
2
3
This feature is available in Easy and Advanced Modes
OFF
Circuit board ON
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press to accept
Done!
Press 3 seconds
Display shows input channel choices...
Display format...
24Hr( leading zeros 9am shows 09:00)
12Hr( no leading zeros 9am shows 9:00)
Daylight saving time modes...
dst OFF US
EU
None USA Europe
Display sequencing dwell times...
C 00.0 Clock visibility time (seconds)
t 00.0 Temperature visibility time (sec-
onds)
H 00.0 Humidity visibility time (seconds)
NB. All three are normally set to 0.00 and are
only altered if you connect a remote
ASR-GPS master clock to the display, with
Temperature and Humidity sensors installed.
See the following page if you chose Day Counter or Elapsed timer modes...

16
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Timer Mode settings
If the display is being used in Timer Mode, the following basic configurations will be
available ....
Lockout Switch must be OFF
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press to scroll through the available
mode choices and press OK to
select.
1
2
This feature is available in Easy and Advanced Modes
OFF
Circuit board ON
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press to accept
Done!
Press 3 seconds
Display shows input channel choices...
Counting direction...
UP Up counting, normally from zero
dn Down counting, normally from preset
Down Count, action on reaching 0
Neg.Y Display will go below 0 on down
count
neg.n Display will stop at 0 on down count
The display will flash if negative
Offset adjustments
Preset
Display goes to this value whenever it is
reset, and the display will normally count
down from this value to 0
pr.Load
If a period has already elapsed, when the
display is installed (For example you are
installing the display to show Days since last
Accident and so far there have been 349
days without accident, you would set Pr.Load
to 349) you can enter this value here. When
the display is reset, the display will go to 0
See the previous page if you chose Clock mode...
3

17
1
2
3
This feature is available in Easy and Advanced Modes
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Done!
Press to accept
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Display shows each of the parameters
and you can move on to the next one
with the OK button.
Edit settings with the DIGIT, UP and
DOWN buttons, OK to accept. Let us
assume it is March 24, 2011. If the
time will soon be 14:59 you will set ...
yr. 11
n ~03
dt.24
14:59
14:59
14:59
Set the last 2 digits of the year
Set the month. 1=Jan, 12 = Dec
Set the date 1=1st , 31=31st
Set the hour (must be GMT or UTC)*
Set the minutes
The time will brighten and the 4 leds to the
right of the display will flash. At exactly 14:59,
press the OK button. No menu timeout.
Lockout Switch must be OFF
OFF
Circuit board ON
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press together for 3 seconds
RTC setup method
The display’s calendar and internal clock will need to be set whenever the battery is
renewed, and the clock may need to be set from time to time, if it is not synchronised to a
master timesource, such as our ASR-GPS

18
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Factory Defaults
You can return the display to its factory default conditions whenever you wish. If you do so,
you will permanently loose all your settings and will need to start from the beginning again.
The calibration Audit Counter will NOT be reset, there is no way provided to reset this value,
as it is intended as a secure record to indicate whether changes have been made to the
display since it was last calibrated..
Lockout Switch must be OFF
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press to accept
1
2
3Done!
This feature is available in Easy and Advanced Modes
Display shows :-
defn (Defaults no)
Press the DOWN button to change the
display to defy (Defaults Yes) if you
want to return to default conditions.
Press together for 3 seconds (1, 2,3 then 4 buttons)
OFF
Circuit board ON
Calibration audit number
Your display includes a non-resettable counter which increments each time you make a
change to the display’s calibration. This is useful if you want to check whether a display has
been altered since it was last calibrated.
The Calibration audit number starts at CL 01 up to CL FF allowing up to 255 altera-
tions to be recorded. Whenever you want to check the calibration audit number, press and
hold the 2 outer buttons (Set1 + Alarms) for more than 3 seconds.
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Done!
1
Press together for 3 seconds

19
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Logic input functions
The three contact closure inputs on the rear of the meter have default functions which are:-
Contact closure 1 = Start (starts timing period, clears display to 0 or preset)
Contact closure 2 = Stop
Contact closure 3 = Reset
Note:
You cannot reset or restart the timer if it has not been stopped.
You can tie reset to start to simultaneously reset and start.
You can tie reset to stop to simultaneously reset and stop.
Lockout Switch must be OFF
Press 3 seconds
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Press repeatedly until you see
CC.1 , followed by the existing function for
Contact Closure 1.
After you have set CC.1, you will get the
prompt CC.2 to allow you to set Contact
Closure 2 function and when you have set
CC.2 you will get the prompt CC.3 to
allow you to set Contact Closure 3 function
1
2
3
4
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Use UP or DOWN buttons to select from
these available functions...
Set1 Set2 Output Alarms
Digit OK
Max/Min Reset
Done!
!! This feature is available in Advanced Mode only !!
Defaults are:-
CC.1 = Start
CC.2 = Stop
CC.3 = rst
Press to accept
OFF
Circuit board ON

20
Logic input connections and front buttons
The logic input provides a 5V DC signal. When you connect this to common, a current of
1mA will flow.
Because this is a small signal, we recommend you use switches with gold plated contacts,
or self cleaning contacts, for best long term reliability.
Logic Inputs Power
Signal I/P & Excitation
1 2 3 4 5 6 7 8 9 10 11 12 13
Normally open (disables front
panel Tare, Peak/Valley and
Reset buttons)
Normally closed (this enables
front panel Tare, Peak Valley and
Reset buttons also) Or simply link
NPN (could be opto-isolators if
you need the logic control lines to
be galvanically isolated from the
input signal.
ON
OFF