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London Electronics Limited
Panel mounting load / weight indicator / controller
Connection details, scaling and general information
The New version of the INTUITIVE Family, with these extra benefits...
* 20 bit A/D convertor, higher precision, improved stability.
* 16 bit D/A convertor, greater resolution.
* Direct and theoretical linearisation features
* More comms options, for faster, more flexible data access.
* Extra 'Factor and Offset' feature, allows you to correct for Gravity, Container Tare etc.
* Simpler Alarm-Setpoint setting.
* More alarm setting modes, including in-band and out of band alarms.
* Summary Screen, lets you know which options are fitted, whenever you want to know.
* Wider operating temperature range
* Variable brightness feature
* Adjustable menu timeout delay, to suit new and experienced users.
* Online streaming step-by-step video guides at http://london-electronics.com
MAXI- INT2
= Maxi-Int Mark 2 family
L
= Loadcell model
Analogue output:
Alarm outputs:
Serial data:
Display colour:
Power:
Document Ref:pm65\manuals\INTUITIVE_L_MkII
Thorncote Green, Near Hatch, Sandy, Bedfordshire SG19 1PU
Tel +44(0)1767 626444
www.london-electronics.com help@london-electronics.com
MAXI-INT2-L Mk.2
!
Ordering code:
0=none,
ANI=4-20mA,
0=none,
AL2= 2 relays,
0= none,
232=RS232,
R=Red,
G=Green
AC=100-240V AC,
DC=11-30V DC
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-L-X-X-X-X-X
ANV=0-10V
AL4=4 relays
485=RS485
Software version F00.14
Revision:14 Dated: 30 June 2009
Fax +44(0)1767 626446
1
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Related Manuals for London Electronics MAXI-INT2-L Mk.2
Summary of Contents for London Electronics MAXI-INT2-L Mk.2
- 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 Panel mounting load / weight indicator / controller MAXI-INT2-L Mk.2 Connection details, scaling and general information Caution: There is a risk of electrical...
- Page 3 Contents Alarm board configuration Alarm programming 28-33 Analogue output 25-26 Application notes Bootup routine Brightness Adjustment Button Functions 12-14 Calibration - introduction Calibration method - direct, no linearisation Calibration method - direct, with linearisation Calibration method - theoretical, no linearisation 18-20 Calibration method - theoretical, with linearisation Connections...
- Page 4 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 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 The MAXI-INT2 Series of meters accept 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 the INT2 series is to give a numeric readout of the variable being monitored.
- Page 7 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. Installing into front of panel 138mm +1mm -0mm Slide the meter, with gasket into the panel cutout Remove the two screw clamp...
- Page 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.
- Page 9 Connections - INT-L R S 2 3 2 Connectors and options Connectors may be present R S 4 8 5 even if output options are not installed. Refer to rating label to see installed options. Rated 2A 250VAC Resistive Analog 0, 2 or 4 Alarm Relay Serial Data o/p option...
- Page 10 Startup meter Settings Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing Menu Language Choice Press the two right hand buttons briefly. You will see the User Interface language, which you can change with the UP or DOWN buttons. Accept with OK UI EnG UI FRA Next you will see ...
- Page 11 Drift cancellation (Not on INT2-C, INT2-S) drift 1 If your meter will normally be showing 0, for example a platform scale, you can set the meter to continually cancel any long term drift. To do this, set Drift 1. This only operates at and around zero reading. The meter will compares readings to previous ones every 30 seconds, and if the value has changed by a small amount, the meter will aoutomatically re-zero.
- Page 12 Button Functions- ‘Quick-Step’ - Page 1 Functions Buttons Conditions Alarm Settings A L C F G Can be viewed at any time. Press button briefly to view Alarm lockout OFF to change >3 seconds to change setpoint >5 seconds to change function Analogue Output Settings 888888 Calibration lockout OFF...
- Page 13 Button Functions- ‘Quick-Step’ - Page 2 Functions Buttons Conditions Drift Compensation drift..0 Calibration lockout OFF Press both buttons briefly, press OK 2x Change with UP/DOWN button. OK=Accept Filter Jump percentage Fil.J.10 Calibration lockout OFF Press both buttons >3 secs, press OK 1x Change with UP/DOWN button.
- Page 14 Button Functions- ‘Quick-Step’ - Page 3 Functions Buttons Conditions Reset Tare 888888 888888 Calibration lockout ON Link terminals 7, 10 and 8 Press buttons briefly Reverse / Mirror display rEv.d 1 Calibration lockout OFF Press both buttons briefly, press OK 5x Change with UP/DOWN button.
- Page 15 Filter settings You can use the filter to improve display stability. This is useful if your signal is unstable. Bigger time constants give more stability but slower response. Filter time constant Fil 0.5 Calibration lockout OFF Press both buttons >3 secs Change with UP/DOWN button.
- Page 16 Calibration Methods - introduction There are two ways you can calibrate your display, and each way can be done with 2 points only, or up to 10 linearisation points. Direct connection of real-time low and high input signal levels, which you scale the display against.
- Page 17 Direct Calibration, no linearisation Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing Set your calibration method to DIRECT - see previous page. Assume we want to calibrate a weighing platform, rated at 250kg. We have a 200kg calibration weight.
- Page 18 Theoretical Cal., no linearisation - page 1 Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing Set your calibration method to THEORETICAL - see previous pages As an example, let us assume we want to calibrate the display for a loadcell input. Let us also assume that we know from the calibration sheet which came with the loadcell, that it has a sensitivity of 0 to 2.2451mV/V and a rated capacity of 0 to 5000kg The Display generates 10 V of excitation for the loadcell.
- Page 19 Theoretical cal., no linearisation - page 2 ..Continued from previous page Set to highest reading value, which was rd HI will appear briefly, followed by a 5000 according to the sensor calibration numeric value, which you can set... sheet in our example. The numeric value will need to be the High You can change the value of the brightest display reading value ...
- Page 20 Theoretical cal., no linearisation - page 3 Continued from previous pages. ZERO setting ... Next, In Lo will appear briefly. Set to the Press the Set1 button for around 3 seconds. low input value, which was 0mV according to the sensor calibration sheet in our theor will appear briefly, to confirm that you example.
- Page 21 Linearisation - theoretical scaling Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing Choose THEORETICAL Calibration method - See the Calibration methods page. Lin.OFF Lin.OFF Lin.ON Press both left buttons briefly You can now choose to have the Press OK to select lineariser on or off rd 10...
- Page 22 Linearisation - Direct scaling Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing Choose a DIRECT Calibration method - See the Calibration methods page. Lin.OFF Lin.OFF Lin.ON Press both left buttons briefly You can now choose to have the Press OK to select lineariser on or off direct...
- Page 23 Zero Drift Compensation Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing If your application means the display is normally showing 0, for example a weighing platform which only occasionally carries a load, you can set the meter to constantly check the zero calibration.
- Page 24 How to install option boards Warning: Disconnect Where the product is intended for “UL” installations all power before exposing 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 25 Analogue Output - page 1 Warning: Disconnect Where the product is intended for “UL” installations all power before exposing removal or addition of option boards is not permitted. the rear of the meter The analogue output board plugs onto the 0, 2 or 4 alarm upper option board. It plugs onto a pair of connectors and is secured by two snap-pillars.
- Page 26 Analogue Output - page 2 Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing Your analogue output can cover 0-100% of its range over a display range which you can set. For example, you might want 4-20mA output, for a display range of 500 to 1000. You would press the Analogue O/P button for 3 seconds, and select 4-20mA Then set 0% = 500 Then set 100% = 1000...
- Page 27 Alarm Board Configuration Warning: Disconnect Where the product is intended for “UL” installations all power before exposing removal or addition of option boards is not permitted. the rear of the meter You can have 3 types of alarm board:- An alarm board with no relays, which will simply allow you to fit analogue and/or serial output options.
- Page 28 Alarm Programming Lockout notes: Alarm Lock switch = OFF when changing. Switch Alarm Lock to ON after changing Alarm lockout switch must be OFF. Press alarm button briefly to choose an alarm channel - look at the AL!, AL2, AL3 or AL4 leds to see which channel is selected. Then press the alarm button for 3 seconds to show the Setpoint window - you can now edit the setpoint value with the DIGIT, UP and DOWN buttons.
- Page 29 Hi Alarm relay action, no Hysteresis Alarm tripped Alarm reset The alarm relay will activate when the measured value is at or above the setpoint value. The alarm relay will reset whe you fall below the setpoint value Set.Pt Value Alarm = Hi Setpoint = 69 Hysteresis = 0...
- Page 30 Lo Alarm relay action, no hysteresis Alarm tripped Alarm reset The alarm relay will activate when the measured value is at or below the setpoint value. The alarm relay will reset whe you rise above the setpoint value Set.Pt Value Alarm = Lo Setpoint = 43 Hysteresis = 0...
- Page 31 InFlight Hi Alarm relay The In-Flight alarm modes are used in applications where you want to accurately fill one container from another. If you were to simply close the shutoff valve when the weight reaches your desired amount, you would find thet the weight is higher than you’d Which mode should I use? hoped for.
- Page 32 InFlight Lo Alarm relay The In-Flight alarm modes are used in applications where you want to accurately fill one container from another. If you were to simply close the shutoff valve when the weight reaches your desired amount, you would find thet the weight is higher than you’d hoped for.
- Page 33 In-Band Alarm relay Alarm tripped Alarm reset The alarm relay will activate when the measured value is below the HI value and above the LO value HI Set.Pt Value LO Set.Pt Value Alarm = In.Bnd Hi = 69 Lo = 35 in.bnd Mode HI Setpoint value...
- Page 34 Serial Output - page 1 Warning: Disconnect Where the product is intended for “UL” installations all power before exposing removal or addition of option boards is not permitted. the rear of the meter The serial output board plugs onto the 0, 2 or 4 alarm upper option board. It plugs onto a pair of connectors and is secured by a snap-pillar.
- Page 35 Serial Output - page 2 Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing 100% OUTPUT ALARMS DIGIT B r i e f l y p r e s s t o g e t h e r Baud :- Select from 300,600,1200,2400,4800,9600,19200,38400, 57600,115200 dF = Data Format = 8n1, 7n1, 7E1, 701 Prot = Protocol = P1 (polled ASCII), P2 (Polled Modbus ASCII), C1 (Continuous), H1 (GPS)
- Page 36 Logic Inputs and extra button functions Warning: Warning: Disconnect all power before Logic inputs are NOT isolated exposing the rear of the meter from input signal Lockout notes: Cal Lock switch must be ON to enable logic inputs. Peak and Valley Detection (Maximum/Minimum Reading View) The meter can store the lowest and highest reading values in memory.
- Page 37 Logic Inputs - contd. Warning: Warning: Disconnect all power before Logic inputs are NOT isolated exposing the rear of the meter from input signal Lockout notes: Cal Lock switch must be ON to enable logic inputs. Reset Command The reset command clears any stored peak or valley data, any tared offsets and any in-flight compensation data.
- Page 38 Notes...
- Page 39 Reverse/Mirror/Heads-Up display The INT2 display can be ‘mirror-imaged’ to allow it to be viewed as a reflection in a rear-view mirror, windscreen or other reflective surface. This can be useful for creating ‘heads-up’ displays, for some test installations where the dis- play will be veiwed in a mirror, as a display for drivers reversing large vehicles, etc.
- Page 40 Equipment Specifications Bezel size 72mm high by 144 mm wide 67.5 mm high by 138 mm wide Panel Cutout 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.
- Page 41 Record of revisions 1 May 2007 INT-L Released with F00.001 software 22 May 2007 Added RS485 logic level diagram 22 August 2007 Added Zener barrier application notes. 2 October 2007 F00.006 software. Linearisation added. Inflight compensation and band alarms added. Brightness setting added, Menu timeout delay added.
- Page 42 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 43 Application Notes Zener Barriers: Here are some typical zener barrier arrangements using MTL barriers. You must ensure that the barriers you choose for an installation are suitable for the hazardous area conditions on site. You should seek advice from your preferred barrier supplier to help you choose suitable types.
- Page 44 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 Director...