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London Electronics MAXI-INTUITIVE-P Manual

Digital process indicator/controller
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London Electronics Limited
Obsolete - now replaced by MAXI-INT2-P
Model MAXI-INTUITIVE-P
MAXI
Intuitive
Patent App. Numbers :- UK=GB9820695.6, EU = 99307553.0, USA 09/401738, Canada 2283378
Document Ref:pm65\manuals\MAXI_INTUITIVE_P46
Thorncote Green, Near Hatch, Sandy, Bedfordshire SG19 1PU
Tel +44(0)1767 626444
www.london-electronics.com help@london-electronics.com
Digital Process Indicator / Controller
ZERO
ZERO
DIGIT
TARE
Software version 4.6
SPAN/d.p.
0% O/P
SPAN/d.p.
OUTPUT
s
t
MAX/MIN
RESET
LINEARISER
IEC 1010
89/336/EEC
Revision:2 Dated: 8 March 2004
Fax +44(0)1767 626446
AL1
AL2
AL3
AL4
100% O/P
ALARMS
Kg
OK

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Summary of Contents for London Electronics MAXI-INTUITIVE-P

  • Page 1 London Electronics Limited Thorncote Green, Near Hatch, Sandy, Bedfordshire SG19 1PU Tel +44(0)1767 626444 Fax +44(0)1767 626446 www.london-electronics.com help@london-electronics.com Obsolete - now replaced by MAXI-INT2-P Model MAXI-INTUITIVE-P Digital Process Indicator / Controller ZERO SPAN/d.p. 0% O/P 100% O/P MAXI ZERO SPAN/d.p.

  • Page 2: Alphabetic Index

    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 3 Important Introductory Notes Please feel welcome to contact us if you need help, have a complaint, or if you have suggestions for improving our products or services. If you contact us about a product you already have, please give us as much information as you can, so we can give you accurate and swift help.
  • Page 4 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 be anti-surge fused at 125mA for 230V supply, 250mA for 110V supply or 1A for DC supplies in the range 11-30VDC.

  • Page 5: General Description

    General Description This meter has been designed to be simple to configure. It is easy to use because no menu is used. 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 OUTPUT button, to adjust Alarms you press the ALARM button.

  • Page 6: Getting Started

    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 7 Connections These connectors are only used when options are fitted Analogue Serial ALARM RELAY OUTPUTS Output Output 14 15 16 17 18 19 20 21 22 23 24 25 26 27 REAR VIEW 1 2 3 4 5 6 7 8 9 10 11 12 13 Mains Power model DC Power model INPUT...
  • Page 8 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 9: 'Theoretical' Calibration

    ‘THEORETICAL’ Calibration Set switch 1, near the input connector ON and lockout switch OFF 1) How to set SPAN and DECIMAL POINT Press the SPAN button for 3 seconds. You’ll see ‘dC V’ or ‘dC A’ if the meter is set for DC Voltage or DC current.

  • Page 10: 'Direct' Calibration

    ‘DIRECT’ Calibration Please set all 3 switches 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. signal, and ensure it is steady before proceeding 2) Press the SPAN Button for 3 seconds 3) The SPAN LED should flash 4) Set the display to read your desired fullscale for the signal you’re...
  • Page 11 Filter and Last Digit Roundup 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. Use the UP and DOWN buttons to select a time constant in the range 0 to 5 seconds.
  • Page 12 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) 1) Calibrate the first two points using the ZERO pushbutton for the lowest...
  • Page 13 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 by briefly pressing the MAX/MIN front panel button, or by using remote contact closure switches. The first press shows peak, with the up- per left hand indicator bar lit (marked ‘Max.’).
  • Page 14 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 15 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) Remove the 4 small screws from the rear panel, as shown in the diagram. 3) Slide the electronic boards out throught the rear of the case.
  • Page 16 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 17: Alarm Settings

    Alarm settings If you press the ALARMS button momentarily, you can view each of the 4 alarm settings (each press will illuminate in turn AL1, AL2, AL3 and AL4 LEDs). Alarm settings are not locked out by the lockout switch. Alarm channel LED will flash.
  • Page 18 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 a certain amount of material from that container into a bin. When the bin reaches the desired weight, the meter will switch off the shutoff valve.

  • Page 19: Analogue Output Configuration

    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 20 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 21 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 22 8 Programme Memory Option With the MEM-08 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. Each memory location can have its own input/display calibration, alarm settings, and analogue O/P calibration.

  • Page 23: Equipment Specifications

    Equipment Specifications Bezel size 72mm high by 144 mm wide Panel Cutout 67.5mm high by 138 mm wide Display Red LED 20mm high Viewing distance 8 metres, average eyesight Case Depth 150 mm including connectors, 130 without Weight 300 grammes without options Case Material Black GRP Connectors...
  • Page 24 Record of Revisions/Changes 30 October 2003 Product released 8 March 2004 Memory option amended Page 22...
  • Page 25 Notes...
  • Page 26 Notes...

  • Page 27: Declaration Of Conformity

    All signal cabling shall be screened. The screen shall only be terminated to the power earth terminal This certificate applies only to meters carrying Serial Numbers 841001 or higher. Signed as true and correct, for and on behalf of London Electronics Ltd. J.R. Lees...

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