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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

Input Signals (bipolar)

4 or 6 wire loadcell up to +/-30mV

Input Resistance

>10 Megohms

Accuracy

+/-0.05% of range

Span tempco

50ppm/Degree Celsius

Zero Tempco

20ppm/Degree Celsius

Excitation voltage

10VDC +/- 0.1% rated at  120mA

Filtering / smoothing

Selectable time constants of  0 to 5 seconds.

A/D conversion

Dual slope 10 conversions per second. Resolution 1 in
63000 max. over full range

Display update rate

2 readings per second.

Plug-In Output Options

Analogue O/P

0-10VDC

4-20mA

+/-5VDC

Drive capacity

>1K  Ohms

<500 Ohms

>1 K Ohms

Isolation

250 VAC Optically isolated

Accuracy

+/-0.1% range, +/-10mV for ANV, +/-10uA for ANI

Linearity

+/-0.02% of range

Resolution

12 bits

Scaling

Fully adjustable, direct or inverse

Alarm Relay O/P

2 or  4 alarms SPST  rated 5 Amperes at 250 VAC,
resistive load. Selectable normally open or normally
closed. Selectable energise or de-energise on trip.
Independant hysteresis and inflight compensation on
each alarm relay.

ASCII Data O/P

RS232 or RS422 ASCII Value of reading. 1200 baud.

Format

1 start bit, 8 data, no parity. <Measurement><CR>

Isolation

250 VAC optically isolated

Page 22

Содержание INTUITIVE-L

Страница 1: ...ntroller INTUITIVE L Connection details scaling and general information Digital Scaling and calibration User friendly time saving design Fast installation and commissioning 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 ...

Страница 2: ... ...

Страница 3: ...ity 29 DeviceNet output option 20 Failsafe alarm setting 10 Filter time constant selection 9 General description 3 Getting Started 4 Hysteresis adjustment 15 In Flight compensation facility 16 Installing options 13 Introduction 1 Input connection examples 5 Linearisation facility 10 ModBus RTU RS485 output option 20 Peak Valley detection and memory 11 Programme memory facility 21 Reset command 12 ...

Страница 4: ...ivalent 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 normally returned with a standard courier service We do not offer any compensation for losses caused by failure of this instrument If you do not agree with these conditions please return this ...

Страница 5: ...re you install the meter Don t touch any circuitry after you have connected the meter because there may be lethal voltages on the circuit board We designed this meter for Installation class II service only This means it has exposed electrical and power terminals so you must install it in an enclosure to protect users from electric shock We designed this meter for Pollution Degree 2 environments on...

Страница 6: ...easurements The meter can give alarm outputs scaled and isolated analogue output and isolated serial data retransmission when fitted with option boards The front panel has a 6 digit 7 segment window for displaying the measurement It allows decimal point and minus sign characters to be included and has 4 alarm annunciators to show the status of each alarm relay The front panel pushbuttons each have...

Страница 7: ...o not connect any output or alarm cabling yet Apply power and confirm that the meter illuminates all segments for a few seconds and then shows the software version I L X X briefly The X numerals depend on version The calibration lockout switch should be OFF to allow you to change the meter s settings Set the scaling to suit your system using one of the scaling methods described in this manual Chec...

Страница 8: ...et IMPORTANT Set the Lock switches to their ON position after setup to save your settings REAR VIEW Mains Power model DC Power model 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 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 Calibration Method Switch Alarm Lock Switch Calibration Lock Switch Page 5 Hazardous Area Hazardous Area 6 wire Hazardous area schemes Depending on barriers ch...

Страница 9: ... this method of calibration A separate page covers this calibration method in detail 2 Calibration by injecting signals into the meter either from a calibrator or a sensor installed in a system This is DIRECT Calibration Select the DIRECT calibration switch position on the rear of the meter Inject a signal to the meter equal to 0 of signal range If the signal is from a loadcell you don t need to k...

Страница 10: ...set after the most significant digit has been selected When correct press the OK button 2 How to set ZERO Press the ZERO button for 3 seconds You ll see IN LO briefly then a value with one digit brighter than the other This is 0 000 for 0mV input signal 3 000 for a 3mV input signal etc If already correct press the OK button Or use the DIGIT key to select digits and the UP or DOWN arrow keys to cha...

Страница 11: ... hand digit Then one more push of the DIGIT button will allow you to move the decimal point with the UP DOWN buttons 5 When display correctly set press OK How to calibrate Zero 1 Apply zero load and ensure system is steady before proceeding 2 Press the ZERO Button for 3 seconds 3 The ZERO LED should flash 4 Set the display to read 0 or the desired reading for this signal by pressing DIGIT SELECT a...

Страница 12: ...stant is the time it takes for the display to reach 63 of its final reading value after a step change on the input You can see that if you select a 1 second filter time it will take several seconds for the meter to reach its final value To give improved response to large step changes we momentarily cancel the filter action for stable input step changes of over 64 counts and then re apply the filte...

Страница 13: ...ons Display should confirm by saying POINT3 Adjust the reading to the desired value using the DIGIT SELECT and the UP DOWN pushbuttons Press OK when done 3 Apply the 4th input load and then press both LINEARISER Buttons Display should confirm by saying POINT4 Adjust the reading to the desired value using the DIGIT SELECT and the UP DOWN pushbuttons Press OK when done You can repeat this process fo...

Страница 14: ...k Valley Not with MEM 08 option 1 Connect a normally open contact closure switch between terminals 7 and 9 2 Set the calibration lockout switch ON TareCommand You can force the reading to zero by pressing the front panel tare switch for 2 to 3 seconds or by applying a remote contact closure Following readings will be the net value offset by the reading at the time the tare switch was operated The ...

Страница 15: ... counts It doesn t count changes of setpoints or changes of filter value or count by value It stores the total in non volatile memory which can t be reset so is useful for keeping track of the meter s calibration history Reset Command The reset command clears any stored peak or valley data any tared offsets and any in flight compensation data It may be accessed either from the front panel or by ex...

Страница 16: ...are fixed to the upper option board with white plastic pillars You must apply a firm force when fitting or removing these options Always be careful to connect the pins to sockets accurately When reassembling make sure option boards are firmly fixed to the upper option board When the boards are replaced in the case secure them again with the two small black screws Plug In Microprocessor 12345678901...

Страница 17: ...will see two small screws one on each surface Remove both screws Now clip off the front bezel and slide the meter assembly carefully out via the front of the case The relay board plugs into the main board Gently separate the two boards Select relay output contact status when relays are de energised power removed from meter by placing these jumpers and set these jumper to make the alarms energise o...

Страница 18: ...N buttons Press OK when set The alarm control method is identified with a prompt and you can change this to suit your requirements After the prompt is the value which you can set The hysteresis value is related to your measurement so if you have a high alarm set to 500 and you set the hysteresis value to 7 the alarm will occur when the meter reading reaches 500 and will reset when the meter readin...

Страница 19: ...tomatic mode Set FXXXXX where XXXXX is your estimate of inflight material weight The meter automatically adapts the offset after each operation You can view the meter s revised compensation value in the FXXXXX value For the first alarm the meter will correct for 100 of the measured error to get as close to desired action as possible Then each time the alarm occurs it will correct for 25 of the pre...

Страница 20: ...fit Option Boards for details of how to expose this board The analogue board if fitted can be seen plugged into the upper board and can be easily identified because it has either 2 or 3 blue potentiometers depending on version You will need to carefully unplug the analogue output board from the upper board and change the jumper positions to suit your new range as shown below Re assemble the meter ...

Страница 21: ...e reading value where you want 100 Output by using DIGIT and UP DOWN buttons 7 When set press OK to complete your adjustment of the analogue output scaling Please remeber to set the lockout switch ON to save your settings Page 18 DIGIT Min ZERO SPAN dp ZERO SPAN d p MAX MIN TARE ALARMS OK RESET OUTPUT AL1 AL2 AL3 AL4 0 O P 100 O P Limeariser Max DIGIT Min ZERO SPAN dp ZERO SPAN d p MAX MIN TARE AL...

Страница 22: ...port is activated by connecting to the ENABLE terminal For RS232 the ENABLE port must be held high at a 5V level for as long as serial data output is required or if only one string of data is needed the ENABLE line must be held high until the transmission starts after which it may be taken low again The Sig connection on terminal 17 may be used to provide the 5V level if an external source is not ...

Страница 23: ...ics com lel eds Side of meter Page 20 DeviceNet Notes Type Group 2 Slave Only supports polling Interscan delay should be 110mS NO 1 2 3 4 NO 1 2 3 4 485 modbus Baudrate DeviceNet Baudrate Shield White Blue A B DeviceNet cable IDs RS485 Modbus cable IDs Data Cable 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 r...

Страница 24: ...itch and the Lock switch ON again when you have finished All programmes are stored in non volatile EEPROM memory which has a typical storage life of 10 years If you want to use a rotary switch to select up to 8 memory locations and to switch up to 8 two wire signals switch model SW2P8W BCD may be useful This is a 1 8DIN unit you can order separately Mode Always ON Alarm Lock Lock ON to lock switch...

Страница 25: ... conversion Dual slope 10 conversions per second Resolution 1 in 63000 max over full range Display update rate 2 readings per second Plug In Output Options Analogue O P 0 10VDC 4 20mA 5VDC Drive capacity 1K Ohms 500 Ohms 1 K Ohms Isolation 250 VAC Optically isolated Accuracy 0 1 range 10mV forANV 10uAforANI Linearity 0 02 of range Resolution 12 bits Scaling Fully adjustable direct or inverse Alarm...

Страница 26: ...e bug associated with internal flag setting 12 April 2000 Ver 5 4 Software released Eliminates software bug associated with alarm setting 09 March 2001 Modification of Declaration Certificate 11 April 2001 Page 4 Updated switches on rear From jumpers to DIL switch format 21 May 2001 Clarifications to manual regarding switches and correction of SP option to AL4 7 June 2001 Ver 5 5 software released...

Страница 27: ...f you use the meter s analogue output and you want the best accuracy ensure that the device which measures the analogue output has a sample time as long as possible Fast sampling can degrade noise rejection If you can t increase the sampling time fit a capacitor across the receiver 10uF 16V tant capacitors give dramatic noise improvements on 4 20mA systems Screen and earth the analogue output cabl...

Страница 28: ...iveyouareadinginmillivolts Make a note of the millivolt readings with two known loads applied to you system Add these loads to any tare loads such as platform assemblies and see whather the results fit with the datafromtheloadcellmanufacturer Here s an example Youmeasurethemillivoltsignalswith0kgand400kgonyourplatform The platform which rests on the loadcells weighs 250 kg Your platform uses 3 loa...

Страница 29: ...ckout switch OFF the display will always be GROSS in other words the tare valuewillbeignored When you have the lockout switch ON the tare value will be subtracted from the gorss value and the displaywillbeNETTvalue To clear the tare value to 0 simply reset the meter when the lockout switch is ON see below Thiswillnotaffectyourcalibration REAR VIEW 1 2 3 4 5 6 7 8 9 10 11 12 13 ON 1 Switch 3 ON 2 B...

Страница 30: ...Page 27 ...

Страница 31: ...want to dispose of it It must not be thrown away in general rubbish If you are unable to dispose of this item locally you may send it to us for recycling Conditions 1 We will only accept items of our manufacture 2 You must pay for the transport of the goods to us 3 We will only accept items if they include a signed declaration by an authorised person in your organisation stating that i The item is...

Страница 32: ...ng includesrelayoutputwiring Allsignalcablingshallbescreened Thescreenshallonlybeterminatedtothepowerearthterminal This is to confirm that the Product covered by this declaration have been designed and manufactured to meetthelimitsofthefollowing EMCStandard EN61326 1 1997 and has been designed to meet the applicable sections of the following safety standards EN61010 1 2001 Declaration Reference IN...

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