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London Electronics Limited
Thorncote Road, Near Sandy, Bedfordshire SG19 1PU
Tel +44(0)1767 626444
Fax +44(0)1767 626446
www.london-electronics.com help@london-electronics.com
Panel mounting load / weight indicator / controller
INTUITIVE-L
Connection details, scaling and general information
Digital Scaling and calibration
User friendly, time-saving design
Fast installation and commissioning
Software version I-L 1.2
Document Ref:pm65\manuals\INTUITIVE_L_FLIGHT
Revision:28 Dated: 20 October 2006
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Summary of Contents for London Electronics INTUITIVE-L
- Page 1 London Electronics Limited Thorncote Road, Near Sandy, Bedfordshire SG19 1PU Tel +44(0)1767 626444 Fax +44(0)1767 626446 www.london-electronics.com help@london-electronics.com Panel mounting load / weight indicator / controller INTUITIVE-L Connection details, scaling and general information Digital Scaling and calibration User friendly, time-saving design Fast installation and commissioning Software version I-L 1.2...
- Page 3 Alphabetic Index Alarm board Configuration Alarms, how to set Analogue Output configuration Analogue output, how to set Calibration method selection Calibration - Direct method Calibration - Theoretical method Calibration - Tamper detection Connections Count-By (last digit round-up) adjustment Decimal point position selection 7 &...
- Page 4 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 for you. 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.
- Page 5 Warnings Please carefully read all warnings and ONLY install the meter when you are sure that you’ve covered all aspects. Connect the meter according to current IEE regulations and separate all wiring according to IEC1010. Power supplies to this equipment must have anti-surge (T) fuses at 125mA for 230V supply, 250mA for 110V supply or 1A for DC supplies in the range 11-30VDC.
- Page 6 General Description This meter is simple to configure. It is easy to use because it has no menu system. Look at the front panel below... to adjust ZERO you press the ZERO button, to adjust Span you press the SPAN button, to adjust Analogue Output you press the ANALOG button, to adjust Alarms you press the ALARM button.
- Page 7 Getting Started First, please check that the display will suit all the requirements of your application. Page 4 has some important warnings - please check that all warnings are covered. If you have analogue output or alarm relay options, you may need to configure their boards before installing the meter in a panel.
- Page 8 Connections - See also page 23 These connectors are only used when options are fitted Analogue Serial ALARM RELAY OUTPUTS Output Output See pages for different types 14 15 16 17 18 19 20 21 22 23 24 25 26 27 REAR VIEW 1 2 3 4 5 6...
- Page 9 Choosing a Calibration Method You can choose one of two calibration methods. All calibrations are saved by switching ‘ON’ the lockout switch when you are finished. 1) Calibration without an input signal. This is ‘THEORETICAL’ Calibration (not available with MEM-08 option) You can use this method if you know the calibration of your sensor.
- Page 10 ‘THEORETICAL’ Calibration Set switch 1, near the input connector ON and switch 3 OFF 1) How to set SPAN and DECIMAL POINT Press the SPAN button for 3 seconds. You’ll see ‘In HI’ briefly, then a value, with one digit brighter than the other. This is 20.000 for a 20mV input signal, or 10.000 for a 10mV input signal, and so on.
- Page 11 ‘DIRECT’ Calibration Please set switches 1 and 3 next to the input connector to OFF You must have the meter connected to power and a steady input signal before you start. How to set the Span Calibration and Decimal Point position 1) Apply 100% Cal.
- Page 12 Filter and Last Digit Roundup The alarm LOCK switch must be OFF to access these variables. Press the OK button 5 times to access the filter time constant, which is expressed in seconds. You can use the filter to improve your display stability with fluctuating input signals.
- Page 13 Using the Lineariser You can enter up to 10 calibration points, to generate a curved function between input signal and displayed value. Each point MUST be greater in value than the previous one and the meter must be set for DIRECT calibration method. (Note - linearising is not available on MEM-08 option meters or meters set for THEORETICAL calibration) Calibrate the first two points using the ZERO pushbutton for the lowest...
- Page 14 Features Peak and Valley Detection (Maximum/Minimum Reading View) The meter can store the lowest and highest reading values in memory. You can see these values if you press the MAX/MIN front panel button, or by using re- mote contact closure switches. The first press shows peak, with the upper left hand indicator bar lit (marked ‘Max.’).
- Page 15 Features - contd. Automatic Zero-Drift Compensation This feature is useful in applications where your meter reads zero most of the time. It cancels long-term zero drift caused by ageing, temperature change, etc. If the reading is within 7 counts of zero for around 100 seconds, the reading will go to zero without changing basic calibration.
- Page 16 How to install option boards If you want to open the meter to install or modify option boards, follow these steps... 1) Switch off power to the meter and unplug all connectors. 2) Unclip the front bezel. This is easier if you squeeze the top and bottom of the case, near the front.
- Page 17 Alarm Board Configuration & Adjustment For failsafe operation (where contacts open on alarm or when power is lost to the meter) set the jumpers for OPEN CONTACTS and DE-ENERGISE on alarm. To access to the alarm board, first remove power from meter, including any power which might be on the alarm output circuitry.
- Page 18 Alarm settings (set alarm lockout switch OFF of you want to make changes) Press the ALARMS button briefly, to view each of the 4 alarm settings (each press will light, in turn, AL1, AL2, AL3 and AL4 LEDs). Set the middle switch near the input connector (Alarm LOCK) to OFF if you want to change alarms.
- Page 19 In-Flight Compensation You can configure the meter to have in-flight compensation, which can improve alarm accuracy in some applications. Here’s how it works..Imagine you have a storage container and you want to empty material from that container into a bin. When the bin reaches the desired weight, the meter will switch off the shutoff valve.
- Page 20 Analogue Output Configuration We always set the meters to suit any requests on your order, so you should not need to adjust the analogue board. If you didn’t specify ranges, but ordered option ‘ANI’, the meter will be set for 4-20mA output. If you ordered ‘ANV’ it will be set for 0-10V.
- Page 21 How to adjust your Analogue Output The lockout switch should be set ‘OFF’ to change the analogue output calibration. You can set the analogue output range to suit your display range. The analogue output can be directly proportional or inversely proportional to the display range, for example you can have 4-20mA output for display 0 to100 or for display 100 to 0.
- Page 22 RS232/422 Serial Communications Output Option You can have either an RS232 or an RS422 ASCII output at 1200 baud representing the meter’s displayed value. You can have a continuous transmission of readings, or a single transmission on demand. RS232 O/P on terminal 16 (data+) and terminal 18(common) RS422 O/P on terminals 16 &...
- Page 23 DeviceNet(DN) RS485(485) ModBus RTU(MB) options RS485/Modbus cable IDs DeviceNet cable IDs Shield White Data Cable Blue RS485 ASCII Addressing: To request a reading , send ... <STX><Address><r><ETX> Where Address = 01 to 63 Reply is ... <STX><ASCII reading><r><ETX> <r> signifies reading request/reply NB: No more than 2 requests per second to any address.
- Page 24 8 Programme Memory Option (description only - separate manual needed) With this option, you can store up to 8 sets of configuration and calibration data. This is useful if you want to connect a number of different sensors, each with different calibration, to the meter, selected by rotary switch.
- Page 25 Equipment Specifications Bezel size 48mm high by 96 mm wide (1/8 DIN) Panel Cutout 45 mm high by 92 mm wide Case Depth 125 mm including connectors Weight 300 grammes Case Material Black polycarbonate Connectors Detachable Screw Terminal connectors Power 95-265 VAC or 11-30 VDC optional Burden 8VA maximum...
- Page 26 Record of Revisions/Changes 16 April 1999 8 Memory programme facility option added with rev. 2.A software Front Page - added highlight to indicate availability of MEM-08 option Table of contents amended to include memory option Page 4 amended to revise remote connector functions Page 5 amended to add comment about MEM-08 and Linearisation exclusivity Page 6 amended to add comment about MEM-08 and Peak/Valley, Tare, reset exclusivity...
- Page 27 To get the best possible accuracy and resolution from this meter ... You’ll need to do a few things for best performance. Loadcell signals can be very small, compared to noise levels in many industrial environments. Use screened cable for all loadcell connections. Connect the screen to earth near the meter, not near the loadcell.
- Page 28 Troubleshooting help. 1. Do you get the signals you expect from your loadcells? An ERROR display means the meter can’t resolve the input signal. A basic test is to see whether your loadcells are giving the correct level of output signal. Measure the signal with an accurate DVM.
- Page 29 Troubleshooting help - continued 2. The display value changes when you switch the lockout ON. This is normal, and can be eliminated. Here is what’s happening ..At some time in the past, you have tared the display. The tare value is saved in memory. When you have the lockout switch OFF, the display will always be GROSS, in other words the tare value will be ignored.
- Page 30 Page 27...
- Page 31 Waste Electrical and Electronic Equipment (WEEE) In Europe, this equipment must be disposed of in accordance with European Parliamentary Directive 2002/96/EC This directive encourages recycling and the reduction of waste materials in the environment. This means it must be sent to an approved recycling plant if you want to dispose of it. It must not be thrown away in general rubbish.
- Page 32 Signal cabling shall be routed separately to power carrying cabling (includes relay output wiring) All signal cabling shall be screened. The screen shall only be terminated to the power earth terminal Declared as true and correct, for and on behalf of London Electronics Ltd. J.R.Lees...