User`s Manual - London Electronics Ltd.
Contents
1. 55 gt 9 oJez LNAWAYONI 158185 7 puooes JO JqISIA SOSA NOILISOd LNIOd AV IdSIG 8 SAIdNVS 3J9VH3 AV AO H38NDN 4 eR 63994102 HOLOVJ ATVOS dnjes smous XSZ L3 puooes JO eidisIA HOLOVH 31VOS spuooes NNAN EE dA 11 4 8 Application Example Below is a commonly encountered application with details of suggested configurations to aid in commissioning your ratemeter Please feel free to call our Application Engineering Department for assistance with your particular application if you so wish and we shall be pleased to help you VA Receiver Counting rate of objects passing along a conveyor Transmitter Excitation Input A or B A through beam system is often the most effective method of sensing objects as they pass along a conveyor The system relies on the containers breaking a light beam as they pass along the conveyor and is quite insensitive to reflections and does not rely on the surface colour or tint of the objects passing by The transmitter and receiver are powered by the totaliser s excitation supply and the receiver provides and NPN or PNP output si2. Serial Input remote displays Ratemeters Proces Indicators Weight Indicators Draw Meters Rate of Change indicators Clocks Fora Full Catalogue and PriceList please call us on 01767 626444 and we will despatch details immediately 17 9 0 AND FINALLY We really would appreciate receiving any comments you may wish to make after receiving your LONDON ELECTRONICS LTD Large displays In particular if you experienced any difficulties during any stage of your purchase your com ments will enable us to serve you better in the future Similarly if there are any additional features you feel you would benefit from by having them included in our range of equipment please let us know and we will give your suggestions serious consideration Please complete the section below and return it to us as soon as possible so that changes can be made without delay Thank you for choosing products from LONDON ELECTRONICS LTD NAME JOB FUNCTION COMPANY ADDRESS POST CODE TEL NO MODEL NUMBER SERIAL NUMBER BRIEF APPLICATION DESCRIPTION COMMENTS SIGNED DATE 18 NOTES 19 Declaration of Conformity Declaration Number EMC1700 Iss 3 Issue Date 21 April 1997 Products Covered 1700 Series Large Displays Title Large Process Serial Rate amp Totalising Displays This is to confirm that the Products covered by this declaration have been designed and
3. The incoming signal can be measured over a choice of gate times and the readings can be averaged over a number of gate periods givin very long effective average measurements This allows the rate over an 8 hour shift to be accurately shown for example though the display is similarly well suited to displaying powerline frequency If specifically ordered we can supply the displays with a silk screened legend identifying the measurement being displayed for example units hour bottles shift etc An optional RS485 output is available useful for feeding remote mimic displays If you require serial input only and do not require analogue input a simpler model is available S17XX series The serial input models can have 5 or 7 digits The configuration settings and calibration constants of the display are stored in non volatile memory which is retained for at least 10 years Change to the settings is achieved by way of remote contact closure inputs allowing alteration ofthe unit s configuration menu calibration and brightness The case is sealed to IP65 and the lens is 4mm thick polycarbonate making it ideal for use in food industry washdown applications PLEASE check the carton s contents as soon as possible after receipt to detect any transit damage or losses Unpack the contents and check each item in the box against the check list below to make sure you have all items Check List Handbook Display Mo
4. by the distributor LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from 1 Improper or inadequate maintenance by the buyer 2 Unauthorised modification or misuse 3 Operation outside the environmental specification of the product 4 Mishandling or abuse The warranty set forth above is exclusive and no other warranty whether written or oral is expressed or implied London Electronics Ltd specifically disclaims the implied warranties of merchantability and fitness for a particular purpose EXCLUSIVE REMEDIES The remedies provided herein are the buyer s sole and exclusive remedies In no event shall London Electronics Ltd be liable for direct indirect incidental or consequential damages including loss of profits whether based on contract tort or any other legal theory 16 9 0 Other London Products We also design and manufacture a broad range of panel meters controllers transmitters and other types of Large Displays 1 8 DIN Panel meters Inputs accepted include Pulses Totalisers amp Quadrature Pulses Ratemeters 4 20mA 0 10V Thermocouples RTD s AC Volts and Current Resistance Slidewire postion tranducers Loadcells Torque transducers RS232 RS485 RS422 20mA TTY BCD We also produce Custom special instruments designed for you from your requirement specifications Large Displays Other forms of large displays manufactured by London Electronics Ltd include
5. due to short spikes on the mains Damage will occur if the unit is subject to 415 volt mains application Check wiring prior to powering the units Technical helpline 01767 626444 Please make a note of full model number serial number and configuration number before calling us Please also read the manual before calling and if you find any part unclear or do not find the information you need let us know That way we can improve future editions ofthe manual for you 7 0 SAFETY CONSIDERATIONS The 1700 series is protected in accordance with IEC Safety Class 1 The instruments are designed and tested in accordance with IEC publication 348 Safety Requirements for Electronic measuring apparatus andare supplied in a safe condition Whenever protection is likely to have been impaired by damage the equipment shall be made inoperative and be secured against any intended operation Removal ofthe rear cover WILL EXPOSE LIVE PARTS 5 The equipment must be disconnected from the supply before carrying out any adjustments replacement or repair with the case opened If any work is carried out with the equipment opened and powered it shall only be carried out by a skilled person who is aware of the hazard involved Mains connections The unit is operable as soon as the mains is applied there is no mains switch The equipment must be connected to a protective earth Any interruption of the earth conductor inside or outside the equipment i
6. manufactured to meet the following specifications EN55022 1987 Conducted Emissions Class B EN55022 1987 Radiated Emissions Class B IEC801 2 1984 Electro Static Discharge Immunity 8kV Air IEC801 3 1984 Radiated ElectroMagnetic field Immunity 3V m IEC801 4 1988 Fast Transient Immunity AC 1kV cable 0 5kV Thus the products conform with the applicable sections of the following standards EN50081 1 1992 normative EN50082 1 1992 normative and comply with the requirements of Council Directive 89 336 EEC relating to Electro Magnetic Compatibility To confirm compliance representative models within the range have been independently tested and certified by MARCONI INSTRUMENTS EMC Department MARCONI CERTIFICATE TC96 029C MARCONI CERTIFICATE Issue 1 MARCONI Certificate Issue Date 14 February 1996 Conditions The meters are permitted a worst case error of 196 of A D range during electro magnetic disturbance and must recover automatically when disturbance ceases without the need for human intervention such as resetting power down etc The meters covered by this certificate must be installed in adherence to the following conditions 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 This certificate applies only to meters carrying Serial Numbers 601001 or higher Si
7. E WHILST THE CASE IS OPEN 3 1 SIGNAL CABLES The signal and data connectors are at the left hand end of the power and control card They are connected to extension cables which are accessible from the rear of the display Do not earth the screen or braid of the input data output or programmer cable outside the display as it is already internally earthed to the screen terminal 1 8 Braid Top Connector P1 O O O O O PulseInputs RAM A 12345 3 Input A Red 4 Input B Green 5 Excitation Yellow 1 8 Braid Middle Connector P3 2 Remote Programmer MOL s 1 2 3 Select Green 4 Increment Blue 5 Menu Yellow 1 Screen Braid Bottom ConnectorP2 Optional Serial o 1234 Data 3 Data B Green 3 2 MAINS CABLES 4 Data A Blue The unit incorporates a switching power supply to enable the unit to operate over the full 95 w 65 Volts range The mains lead must be of 3 core construction with the earth wire bonded to a good earth Line Brown for DC option Neutral Blue DC for DC option No Connection Earth Green Yellow 6 P4 Remote Programme Pulse Input Red Common Yellow Sig Excitatig Yellow Menu Reset G Select ag Power ue Incremen Common Brown AC Hi Blue AC Lo Serial O P Option Gn Yw Ground Blue A Green B Yellow Comm 4 1 PULSE INPUT SELECTION If when ordering your display you specified the input type required this will have been set for
8. 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 R175X Series of Large Displays Scaleable Ratemeters NPN PNP Contact Closure TTL CMOS logic Inputs Including Sensor Excitation and RS485 Data Output Rear case screws please note The rear panel is held in place with finger screws which only need to be gently tightened Do not use tools to tighten or loosen the screws as this could cause damage to the internal threads User s Manual Rev 11 0 30 June 2008 Doc R17CE pm5 1 CONTENTS SECTION INTRODUCTION br a OR tii Seen 1 0 UNPACKING AND INSPECTION e 2 0 GENERAL INFORMATION sese 2 General cse deat atte EA e das ades 3 0 INTERNAL CABLES ner eee ronde t rt 3 1 Signal E REN A RM EM ERN NS 3 2 M ns cables aes eso bv taret arse ceti e 4 0 DETAILED OPERATING INFORMATION 4 1 PulseJ Pr SeleC HOD du a tate dia 4 1 1 Jumper Functions and Positions sese 4 2 Typical Input COntIe CEIOTIS Rust pr e Iota ep PR 4 3 RS455 output option sore aee veh haereat Rede eoe te cadet es 4 4 Contact Closure Remote Programmer connections s 4 5 Programming your display ic uoo eere rode rer ene 4 6 The Programming Menu amp B
9. a zero number of 000 05 will give 2 decimal places on the display and the display will average over the last 5 readings The resolution in the span figure will need to match that of the decimal point position So if you want to read the power line frequency in Hz to 2 decimal places showing the average ofthe last 20 readings set Scale to 001 00 and zero to 000 20 CnFIg is the Configuration number This determines the display update rate sets output data baudrate and determines the brightness setting See below for Configuration number makeup Sero always 3 second update rate 10 Second update rate Data O P Baud Rate 30 second update rate 300 baud 1200 baud 2400 baud 9600 baud BRIGHTNESS ADJUSTMENT Using SELECT move to the right hand digit of the CnFG number Press SELECT once more and the whole display will flash now each time you press INCREMENT the brightness will move to a new level Press MENU when you have selected the desired brightness 10 LOATAS sseJd 4 LIND 3 OL ON Ex Keidsi osje pue LDNBASNONI india d ae lt lt 193138 EAS OU ONILLAS MAN 3AVS SJA R NN NNJN SS3 ld R NOLLVSHDOOIJ3NOO 193198 UC JequinN BIS NNIN Te lt
10. ays are quite small in comparison to some of the undesirable noise generated by certain types of common electrical equipment To obtain the highest degree of accuracy and reliability from your indication equipment we strongly suggest that you DO use screened twisted pair cable to minimise the amount of noise being fed into the display DO NOT run signal cables adjacent to power switching lines or near equipment liable to generate large amounts of electrical noise such as contactors solenoids fluorescent tubes discharge lamps motor control equipment etc DO NOT earth the screens of signal data or programmer cables but DO earth the screen on mains cables 13 5 1 Case sizes are subject to change so we recommend you refer to our datasheet at http www london electronics com pdf 1700 pdf for latest details MOUNTING POSITIONS General specifications for the 1700 series For the standard stock single line displays Case Material UPVC welded Gasket Material Neoprene Sealing screws Stainless Steel Case dimensions Panel Cutout dimensions Depth 75mm cables Digit Height 5digit mm Kg 7 digit mm Kg 5 digit mm 7 digit mm Sealing 57mm 291x142 2 5 387x142 3 0 293x144 389x144 IP65 102mm 483x179 4 5 674x179 5 0 485x181 676x179 IP65 144mm 642x181 5 5 883x181 6 0 644x183 883x183 IP65 200mm 824x237 7 0 1140x237 8 0 826x239 1142x239 IP65 280mm 1169x327 12 0 1606x327 13 5 1171
11. d from twinned individual 5mm round red LEDs Daylight viewing versions whether 2 4 or 6 are made up of individual 5mm round lensed LED s Power supply Power consumption 95 264VAC 100 to 300 VDC Via Rectifier non specific polarity 20W typ without thermostatic heater 3 0 INTERNAL CABLES The units are supplied with approximately 2 metres of free ended cable for mains signal and serial ports You may connect your own cable to this via a junction box or completely remove the supplied cable and install your own REMEMBER The signals you will be feeding to the displays are quite small in comparison to some ofthe undesirable noise generated by certain types of common electrical equipment To obtain the highest degree of accuracy and reliability from your indication equipment we strongly suggest that you DO NOT run signal cables adjacent to power switching lines or near equipment liable to generate large amounts ofelectrical noise such as contactors solenoids fluorescent tubes discharge lamps motor control equipment etc Do use screened twisted pair extension cable to minimise the amount of noise being fed into the display WARNING RISK OFLETHALELECTRICALSHOCK e wv YOU MAY NEED TO OPEN THE CASE TO ALTER JUMPER POSITIONS OR TO PANEL MOUNT THE DISPLAY BEFORE COMMENCING TO OPEN THE CASE YOU MUST ENSURE THAT POWER HAS BEEN DISCONNECTED AND MUST ENSURE THAT POWER CAN IN NO CIRCUMSTANCES BE RE APPLIED TO THE DEVIC
12. e input and a contact closure for the other A Signal Sig Common Jumper Settings Fit Debounce jumper if input rate is less than 10 per second Fit Pull up jumper If display is to sense when item approaches sensor fit falling edge jumper If display is to sense when item leaves sensor fit rising edge jumper A Signal Sig Common Jumper Settings Fit Debounce jumper if input rate is less than 10 per second Fit Pull down jumper If display is to sense when item approaches sensor fit rising edge jumper If display is to sense when item leaves sensor fit falling edge jumper I P A Signal totaliser Common Jumper Settings Fit Debounce jumper Input rate must not be greater than 10 closures per second Fit Pull up jumper If display is to sense when contacts close fit falling edge jumper If display is to sense when contacts open fit rising edge jumper 4 3 RS485 Data Output option Factory installed only The Serial Data O P cable allows you to feed the measured reading to serial input slave displays such as our S17XX series or small 1 8 DIN SER 06 models for remote indication purposes The output is continuous with a new string transmitted at roughly 1 second intervals The format is the reading itself including decimal point character in ASCII terminated by a Carriage Return The data format is 1 start bit 8 data bits and 1 stop bit The Baud rate is selectable and is deter
13. flashes Each time you press SELECT the flashing digit moves one place to the sect Tight Allows you to increase the value of any flashing digit Each press will increase the value by 1 INCREMENT 4 6 The Programming Menu As you enter the menu prompts will appear on the display Because they are formed with simple 7 segment displays they do not appear to be familiar letter shapes but are described in detail here SCALE This is the scale factor which allows you to multiply or divide the input frequency in Hz by a constant To divide use a constant less than 1 The decimal point position in the scale factor will determine the available display resolution although the actual position of the decimal point in display mode is set in the ZERO figure below ZEro This is the number of readings the display will use in its moving average calculations If you set it to 5 for example the next displayed value will be the average of the last 5 displayed values How often the display updates is determined by the Configuration number see below and you can choose between 3 10 or 30 seconds So let us assume you select a zero value of 3 and an update time of 30 seconds the display will update every 30 seconds and show the average rate over the preceding 90 seconds You can set the decimal point position on the display in the zero number athough you should be aware that the decimal point is not influential in the zero number itself So
14. gnal To operate reliably the items on the conveyor must always be separated to allow the beam to pass between them individually If the items have transparent areas such as bottles or jars avoid passing the beam through the transparent area as this can give false signals due to refractive effects Fit the debounce jumpers if the throughput is less than 10 items a second so that maximum immunity to electrical noise is available Use I P B Control to freeze the sampling action during periods of down time such as lunch breaks etc so that the display shows true working time average rates of production When enabled the display will indicate the actual rate during the enabled period Remember to use screened cables for all signal lines to avoid picking up noise from electrical machinery 12 5 0 INSTALLATION If possible position the display away from heat and direct sunlight on the display face The displays should not be exposed to substances liable to damage uPVC acrylic or glass If mounted outside the display should be protected by a shroud to limit direct falls of rain the cooling effect of which can give rise to the display sucking in moisture DO NOT remove the cables supplied with the indicator as these contain essential filter components You should extend cables with a junction box rather than remove and substitute cabling Screening must be used on your cables REMEMBER The signals you will be feeding to the displ
15. gned as true and correct for and on behalf of London Electronics Ltd J R Lees Director 20
16. mined by the fourth character of the Configuration Number Extension cable should be screened high quality data cable and should be routed away from sources of electrical noise such as motors power cables inductive devices discharge lighting circuits etc Do not earth the screen of the data cable however as it is already connected to internal earth on the display itself Up to 32 slaves having RS485 inputs can be driven from the output port 8 4 5 PROGRAMMING YOUR DISPLAY The Ratemeter offers useful flexibility in scaling and display presentation and all parameters are adjusted by using the three contact closure programming pushbuttons Itis worth spending a little time familiarising yourself with the menu and the programming technique before carrying out a full calibration The menu structure is described below and is followed by a flow diagram to add clarity The flow diagram uses pictures of our Remote Programmer consisting of three pushbuttons arranged as follows If you make up your own programmer please Q O O be sure to use good quality pushswitches and lay them out in the same order as shown here MENU SELECT INCR Yellow Menu Green Select Blue Increment q de Red Common Allows you to enter the programming menu and step down all the variable options when in programming mode MENU Allows you to select a digit within a variable for alteration The digit which can be altered
17. nstrument behaviour is set by way ofremote contact closure pushbuttons which provide access to and alteration of the instrument s menu and the settings are stored in 10 year non volatile memory 2 GENERAL SPECIFICATIONS Display type Signal inputs Input Resistances Excitation Supply Accuracy Scaling Optional Signal Output Data format Handshake Case material Case size mm WxH Case depth Weight Display type 2 digit height 4 digit height 6 digit height Scaleable rate frequency meter adjustable averaging and resolution Contact closure NPN PNP 5V TTL CMOS 24VDC Debounce jumpers available limiting inputs to lt 10Hz Max I P rate without debounce 10Khz 2200 Ohms if internal pull up down enabled Otherwise 10M Nominally 13 VDC at 60mA max 0 01 ofrange 20ppm C Quartz Crystal controlled Scale fully adjustable remotely Decimal point position selectable RS485 at 300 1200 2400 or 9600 Baud Serial ASCII at 300 1200 2400 or 9600 baud start bit 8data or 7 data plus parity and 1 or more stop bits No handshake unit always transmits data UPVC White or Black 5digit 7 digit 2 288x120 384x120 4 480x168 672x168 6 624x192 864x192 90mm 115 mm including rear cable glands 5digit 7 digit 2 2 5Kg 3Kg 4 45Kg 5 6 50Kg 6Kg High efficiency red LED 57mm high 7 segment display tiles Ultrabright red LED 102mm high 7 segment display tiles 144mm high characters forme
18. rightness 4 7 Programming Flow Cattaneo ho reet ee ee rd 4 8 Application ds ee oeste eir pea nee veas bras ode 5 0 INSTALDT TION donet 5 1 Mounting DOSE TOHS a ee dose i Tel Haas IN d Serge 5 2 Panel MOUNN cie dus de cl ust 5 3 AY AME ie Rae 5 4 Suspension THOU B HG asses eec epi 5 5 Multiple display mounting 6 0 TROUBLE SHOOTING AND 7 0 SAFETY CONSIDERATIONS PS 8 0 WARRANTY Sad ique iode e ide ea 9 0 OTHER LONDON PRODUTCTS eee 10 0 AND FINALLY Iv eri HII Gb e PRU RR SNR 11 12 13 14 14 14 14 15 15 15 16 17 18 THE RATEMETER MODEL R175X INTRODUCTION The R175X is one member of a broad family of Large Displays The family is the 1700 Series and the part number tells you a little about the display s function P di us how many R for Rate I P inches high the digits are 17 identifies the model as Tells us how many digits the display has being in the 1700 series 5 always for this model This model is intended for large measurement display use It accepts the most commonly encountered proximity sensors of NPN or PNP type contact closures TTL and CMOS logic levels
19. s likely to make the equipment dangerous The mains and signal leads should not be allowed to collect within the instrument all excess lead must be pulled out through the cable glands Note that capacitors inside the instrument may still be charged when the equipment has been disconnected from the supply Before carrying out any work inside the equipment a period of one minute should be allowed for capacitors to discharge to discharge the mains filter capacitors short together the live and neutral mains wires 15 RFI The equipment generates and uses radio frequency energy but when properly installed as described complies with EN55022 The equipment is certified as meeting EN5008 1 1 and EN50082 1 Shielded cables MUST be used for all signal and data leads but use of a shielded mains lead is not required The power earth wire must be bonded to a good earth but DO NOT earth the signal data or remote programmer screens 8 0 Warranty London Electronics Ltd warrants its products against defects in materials or workmanship for a period of one year 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 London Electronics Ltd distributor from where the unit was purchased The Distributor at its option will repair or replace the defective unit The unit will be returned to the Buyer with freight charges prepaid
20. unting where appropriate Programming Unit If Ordered In the event of damage please contact the carrier and advise our sales office of the fault Please retain the carton packing material for future possible use 2 0 GENERAL INFORMATION This handbook covers the Ratemeter model of the 1700 series large displays The 1700 series is a family of units for broadcasting process values and data on easy to read large 7 segment displays Character heights of 2 4 or 6 are standard and dependent on type displays are 5 or 7 digit Extra large and Daylight viewing displays are available to special order The enclosures for the displays are of welded UPVC material with tough lenses providing certified protection to IP65 66 for the internal electronics Thermostatic heater options may be installed for outdoor mounting in cold climates Case colours are white or black The units incorporate a 95 to 265VAC power supply Which can be used on DC in the range 100 to 300 VDC for operation off any mains source without the need to re configure Display brightness is settable to 4 levels to accommodate differing ambient light conditions and the 3 standard character heights provide a choice of viewing distances of up to 20 40 and 60 metres Other character heights and brightnesses are available to special order The large displays are based around a common power and control card which is linked to display units of different sizes I
21. x329 1608x329 IP65 400mm 1515x456 16 0 2135x456 18 0 1517x458 2137x458 IP65 Panel mounting bezel if requested adds 18mm to width and height Mounting methods Wall panel or suspension mounting kit included in price specify when ordering Cowl extra Operating temperature 10 to 50 degrees C Storage temperature 40 to 60 degrees C Humidity 57 144mm types 100 IP65 200 400mm types 0 95 non condensing IP54 1 7 2 5 2 PANEL MOUNTING 2 2 2 2 Seals IP65 from the front IP54 from behind Mounts into a panel cutout 5 3 WALLMOUNTING A pair of swivel brackets complete with fixing screws to the case but excluding fixing screws to the wall 5 4 SUSPENSION MOUNTING A pair of swivel brackets complete with fixing screws to the case but excluding fixing screws to the support 14 6 0 TROUBLE SHOOTING AND MAINTENANCE The Large displays have been designed to provide a long trouble free life and require no routine maintenance Anannual calibration check is recommended The front lens may be cleaned with a proprietary window cleaner and the case may be hosed down and cleaned with a cloth dampened with mild detergent Surface scratching can be polished out with a mildly abrasive cleaner such as perspex cleaner The mains power supply is for 95 to 264 volts AC so there is no risk of applying 240 volts to a 110 volt unit Filtering is incorporated on the mains input to prevent damage
22. you prior to despatch and should be noted on the label on the rear ofthe display If you did not specify the input type this will be the factory default of NPN Contact closure You can re configure the meter by making internal jumper alterations to accept PNP 24VDC TTL etc 4 1 1 JUMPER FUNCTIONS AND POSITIONS Falling Risjng Fit to give Debounce B E IP B o Fit to give Debounce I P A n E n Pull down n n Pull up P1 Pulse inputs Pull down Y EZ Pull up For no debounce remove appropriate jumper Debounce limits input pulse rate to approx 10Hz max Active Edge Selection P3 Programmer P2 Serial output A The internal circuitry is arranged as tollows Joss 0 22uF t Excitation d _ _ Debounce jumpers 07 OV Pull up down jumper Comm SIGNAL DATA AND CONTACT CLOSURE CONNECTIONS 4 2 Typical Input Connections The most common input sensor types are shown below with a wiring guide to assist you in the installation of your totaliser Only one input is shown as they both have identical input circuitry Because the pullup resistors are not independent both inputs will be pulled up or down you should choose sensors which require the same pullup format if using both inputs In other words do not use a PNP sensor for one input and an NPN sensor for the other You could however have a NPN sensor for on
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