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London Electronics MAXI-INT2-P Series Manual

Panel mounting process indicator / controller
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London Electronics Limited
Panel mounting process indicator / controller
Connection details, scaling and general information
MAXI-INT2
= Intuitive Mark 2 family
P
= Process model
Analogue output:
Alarm outputs:
Serial data:
Display colour:
Power:
Document Ref:pm65\manuals\MAXI-INT2_P
Thorncote Road, Near Sandy, Bedfordshire SG19 1PU
Tel +44(0)1767 626444
www.london-electronics.com help@london-electronics.com
!
Ordering code:
0=none, ANB=-10to+10V, ANI=4-20mA, ANV=0-10V
0=none,
AL2= 2 relays,
0= none,
232=RS232,
R=Red,
G=Green
AC=100-240V AC,
DC=11-30V DC
MAXI-INT2-P
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
MAXI-INT2-P-X-X-X-X-X
AL4=4 relays
485=RS485
Software version F00.21
Revision:19 Dated: 28 February 2011
Fax +44(0)1767 626446
1

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Summary of Contents for London Electronics MAXI-INT2-P Series

  • 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 process indicator / controller MAXI-INT2-P Connection details, scaling and general information Caution: There is a risk of electrical shock if this instrument is not properly installed...

  • Page 2: Warranty

    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.

  • Page 3: Table Of Contents

    Contents Warranty Warnings Introduction General Description Panel mounting & Installation - Class II Wiring Advice Connections Installation hints for best performance 10-11 Easy/Advanced menu mode Language Selection Display Brightness Display Calibration Modes Direct Calibration 16-17 Linearisation with Direct Calibration 18-19 Theoretical Calibration 20-21 Linearisation with Theoretical Calibration...

  • Page 4: Warnings

    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.

  • Page 5: Introduction

    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.

  • Page 6: General Description

    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.

  • Page 7: Panel Mounting & Installation - Class

    Panel Mounting and Installation - Class II Install these 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. 138mm +1mm -0mm Slide the meter, with gasket Installing into front of panel into the panel cutout Remove the two screw clamp...

  • Page 8: Wiring Advice

    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.

  • Page 9: Connections

    Connections R S 2 3 2 Enable is used in mode C1 to activate or de-activate the RS232 or RS485 serial output. Connect to Comm to continually Connectors and options transmit data. Connectors may be present R S 4 8 5 even if output options are not installed.

  • Page 10: Installation Hints For Best Performance

    Installation hints for best performance This section offers several suggestions which will help you get the best performance from your measurement system. Some sensors generate comparitively small signals which can easily be corrupted by the potentially high level of electrical noise which can be created by electrical machinery such as motors, welding systems, discharge lighting, AC power inverters and solenoids.

  • Page 12: Easy/Advanced Menu Mode

    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.

  • Page 13: Language Selection

    Language Selection for user interface You can select English or French menu prompts. This feature is available in Easy and Advanced Modes Set2 Output Set1 Alarms Lockout Switch must be OFF Digit Max/Min Reset Circuit board Press together, briefly Display shows Set2 Output Set1...

  • Page 14: Display Brightness

    Display Brightness You can adjust the display brightness at any time, provided the display is locked. This feature is available in Easy and Advanced Modes Set1 Set2 Output Alarms Digit Lockout Switch must be ON Max/Min Reset Circuit board Press 3 seconds Set1 Set2 Output...

  • Page 15: Display Calibration Modes

    Meter Calibration Modes You can choose from two main calibration methods. 1. Direct Calibration - this is when you connect the meter to your system and make the meter read what you want it to, at 2 different points. This is the preferred calibration method, because it allows you to calibrate the system as a whole.

  • Page 16: Direct Calibration

    Direct Calibration - Full Scale Setting This is when you connect the meter to your system and make the meter read what you want it to, at 2 different points. This is the preferred calibration method, because it allows you to calibrate the system as a whole. How to do direct calibration:- If you have not done so before, please select Direct Calibration mode from the previous page.
  • Page 17 Direct Calibration - Zero Setting How to calibrate the ZERO point. This feature is available in Easy and Advanced Modes Set2 Output Set1 Alarms Lockout Switch must be OFF Digit Max/Min Reset Circuit board Press 3 seconds Apply the lowest calibration signal Set1 Set2 Output...

  • Page 18: Linearisation With Direct Calibration

    Linearisation with Direct Calibration If your system is non linear, you can calibrate the meter and correct for this with the lineariser function. You will need to apply a series of known loads, starting at 0 and working up to full scale. You will then tell the meter what it should read for each applied load.
  • Page 19 Linearisation with Direct Calibration - cont’d. Set1 Set2 Output Alarms The display will show SEt 01 Digit Apply your 1st known load to the system Max/Min Reset and press OK. The display will now show rd 01 You can now tell the meter what it should display for this load.
  • Page 20 Theoretical Cal. - Decimal Point & Full Scale This is when you type in the sensor’s theoretical signal level at the top and bottom of its range and the value to display, for each signal level. If you have not done so before, please select Theoretical Calibration mode from the Meter Calibration page AND choose whether your input is current or voltage.

  • Page 21: Theoretical Calibration

    Theoretical Calibration - Low end calibration This is when you type in the sensor’s theoretical signal level at the top and bottom of its range and the value to display, for each signal level. If you have not done so before, please select Theoretical Calibration mode from the Meter Calibration page.

  • Page 22: Linearisation With Theoretical Calibration

    Linearisation with Theoretical Cal. If your system is non linear, you can calibrate the meter and correct for this with the lineariser function. With this method, you can enter theoretical values for input signal and display values, with- out having to connect a sensor. First, you must select Theoretical Calibration Mode (see page on calibration Modes) Then, proceed as shown below...
  • Page 23 Linearisation with Theoretical Cal. - cont’d. Set1 Set2 Output Alarms The display will show In 01 followed by Digit an editing screen. Here you can enter your Max/Min Reset next calibration input signal level using DIGIT button to select each digit in turn. Increase or decrease the value of each digit using the UP or DOWN buttons.

  • Page 24: Sensor Drift Correction

    Sensor Drift correction If your system is normally reading 0, for example as is typical with platform scales or a torque meter, you may find a small amount of sensor drift caused by changes in temperature, ageing etc. We can automatically correct for slow, long term drift, by comparing your signal to 0 every 30 seconds, and re-calibrating to remove any detected movement.

  • Page 25: Logic Input Functions

    Logic input functions The three contact closure inputs on the rear of the meter have default functions which are:- Contact closure 1 = Tare Contact closure 2 = Peak/Valley display Contact closure 3 = Reset You can re-assign these to include :HOLD, Nett/Gross value display, Memory page address 1,2 or 4 (only if Multi-memory MEM option is installed) !! This feature is available in Advanced Mode only !! Lockout Switch must be OFF...

  • Page 26: Logic Input Connections & Front Buttons

    Logic input connections and front buttons The previous page explained how to select the functions of the 3 logic inputs. You can connect remote contact closures or open NPN collectors to activate these logic inputs. The logic input provides a 5V DC signal. When you connect this to common, a current of 1mA will flow.

  • Page 27: Factory Defaults

    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..

  • Page 28: Signal Filtering / Averaging

    Signal Filtering / Averaging You can adjust the filtering time constant to reduce the effect of noise or instability on your input signal. A larger FIL value will give a more stable display, but the response to signal changes will be slower.
  • Page 29 Filter Jump value See the Easy/Advanced mode selection page near the beginning of this manual, and choose advanced mode. The Filter Jump value allows you to decide how the display will respond to a process step change. It does this by overriding the filtering, if the input signal moves by more than a chosen amount in one conversion.

  • Page 30: Last Digit Rounding

    Last Digit rounding up by 1, 2, 5, 10, 20 or 50 You can adjust the way the display rounds up, which is useful if you want to display a very large number, but do not want jitter on the last digit. The display can be set to round up to the nearest 1 (no rounding) 2, 5, 10, 20 or 50 This feature is available in Easy and Advanced Modes Set1...

  • Page 31: Scale Factor Adjustment

    Scale Factor adjustment After you have calibrated your meter, you can use the SCALE feature to make fine adjust- ments to calibration, without affecting the calibration itself. Examples 1.Changing weight units of measure from kg to pounds You could also use the SCALE to convert your readout from kg to pounds, without affecting the calibration.

  • Page 32: Offset Adjustment

    Offset adjustment After you have calibrated your meter, you can use the OFFSET feature to make fine addi- tions or subtractions to the reading, without affecting the calibration itself. For example if your weighing structure is altered after calibration and you want to subtract the effect of 37kg of extra metalwork which was welded to the hopper, you can easily do this by entering a value of -37 in the offset value.

  • Page 33: Menu Timeout Adjustment

    Menu timeout adjustment The display has a default timeout of 60 seconds, to allow you sufficient time to refer to the manual between key operations. You can make this period shorter, if you wish, once you become more familiar with the setup method.

  • Page 34: Reverse / Mirror Display Setting

    Reverse Display function (mirror image) If you need to be able to see a reflection of the display in a mirror or other reflective surface, for example in a simple heads-up system, or for drivers reversing into a bay, using mirrors only, you can set the display to show as a mirror image.

  • Page 35: Bootup Routine Choices

    Bootup routine choices When you switch on your meter, it can be set to power up with 3 possible summary mes- sage combinations. The choices are:- boot 0 Segment test, followed by a full summary of software revision, calibration audit number, model number, installed options. boot 1 Segment test followed by model number (Default)

  • Page 36: Multi Memory Mem Option

    Multi-Program Memory option MEM The three contact closure inputs on the rear of the meter may be used to call up between 1 to 7 additional meter setup memories (pages), if the MEM option has been installed. This allows you to save up to 8 complete sets of independent calibrations, alarm settings, ana- logue output settings and serial comms settings.

  • Page 37: Error Codes

    Error codes and fault finding 1. Under Range. The meter is being asked to display a value which is more --Ur-- negative than its limit of -199999 2. Over Range. The meter is being asked to display a value which is higher --Or-- than its limit of 999999 These fault codes could be displayed because the signal is too negative, too...

  • Page 38: Output Options - Installing

    How to install option boards Warning: Disconnect Where the product is intended for “UL” installations power before you expose removal or addition of option boards is not permitted. the rear of the meter If you want to open your meter to install or modify option boards, follow these steps... Switch off power to the meter and unplug all connectors.

  • Page 39: Weee

    Waste Electrical 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 with general rubbish.

  • Page 40: Equipment Specifications

    Equipment Specifications Bezel size 72mm high by 144 mm wide Panel Cutout 67.5 mm high by 138 mm wide Case Depth 150 mm including connectors Weight 450 grammes Case Material Black polycarbonate Connectors Detachable Screw Terminal connectors Environmental Storage Temperature range -20 to +70C, non condensing Operating temperature range 0 to 50C, non condensing Front sealed IP65 if SPC4-M cover fitted.

  • Page 41: Record Of Revisions

    Record of Revisions 6 September 2010 Version F00.18 Software released. Manual format revised to improve clarity and segregate easy from advanced menu functions. Optional outputs now described in their own dedicated manuals. DIN Rail mounting option added. Cabling guidance added. 17 November 2010 Version F00.19 Software released.
  • Page 42 Notes...
  • Page 43 Notes...

  • Page 44: Declaration Of Conformity

    All signal cabling shall be screened. The screen shall only be terminated to the power earth terminal at the meter end of the cable. Declared as true and correct, for and on behalf of London Electronics Ltd. J.R.Lees Director...

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