User`s Manual - London Electronics Ltd.
Contents
1. before carrying out any adjustments replacement or repair with the case opened Ifany work is carried out with the equipment opened and powered it shall only be carried out by a skilled person who is aware ofthe hazard involved Power 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 ofthe ground conductor inside or outside the equipment is likely to make the equipment dangerous The power 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 16 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 RFI The equipment generates and uses radio frequency energy but when properly installed as described complies with EN55022 The equipment is certified as meeting EN50081 1 and EN50082 1 Shielded cables MUST be used for all signal and data leads but use of a shielded power lead is not required The power ground wire must be bonded to a good ground but DO NOT ground the signal data or remote programmer shields 8 0 Warranty We warrant our products against defects in m2. 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 NEMA4 for the internal electronics Case colors 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 power 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 Instrument behaviour is set by way of remote 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 1 GENERAL SPECIFICATIONS Display type Signal inputs Input Resistances Excitation Supply Accuracy Scaling Signal Output optional Data format Handshake Case material Case size mm WxH Case depth Weight D
3. the space below to work out your required settings and record them for later use if necessary Display Serial Number Approximate 0 Signal Approximate 100 Signal R Spn Reading Span R Zer Reading Zero 11 Or D525X Menu Flow Diagram N MENU N HOLD for 3 Seconds N y READING SPAN T a gt Span Correct gt RVR p NH Shows you have entered Setup Menu MENU Visible for 1 second Span figure amp Decimal point Y SELECT INCREMENT 2 READING ZERO AA am N i z jej Zero Figure SELECT INCREMENT Visible for 1 second g Y 4 INPUT LOW 0 Y Keep Pressing i 2 e al INCREMENT MENU N INCREMENT and now also INCREMENT D Visible for 1 second Waits for you to apply 0 Signal press SELECT amp If you want to calibrate Input stage y all INPUT VRNN Y R gt 3 F eep Fressing SVR XA N Re MENU INCREMENT and now also INCREMENT ERA for 1 second Waits for you to apply 100 Signal press SELECT amp If you want to calibrate Input stage v4 SELECT JA Configuration Number come Te gt y QURA N y MENU Visible for 1 second CONFIGURATION NUMBER Y SELECT INCREMENT al SARRA YES SAVE NEW SETTING ete A END is I MENO NO SKIP TO END amp QUIT dorm INCREMENT INCREN
4. 89x144 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 1171x329 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 5 2 PANEL MOUNTING Seals IP65 from the front IP54 from behind Mounts into apanel cutout 5 3 WALL MOUNTING 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 6 0 TROUBLE SHOOTING AND MAINTENANCE The Large displays have been designed to provide a long trouble free life and require no routine maintenance An annual 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 per
5. ENT y and now also PRESS MENU press SELECT SELECT 4 8 THE CONFIGURATION NUMBER amp WHAT IT DOES The configuration number consists of 5 digits and appears briefly after initial power up immediately after the digit test sequence when all 8 s are displayed Behavior Filtering Filtering Baud amp Response MSD LSD Mode Number Number The significance of each of these digits is described below Default 40054 4 9 Ist CONFIG DIGIT BEHAVIOR The first digit in the Setup number affects the way the measurement is displayed on the indicator and can be used to centralise digits if only 3 digits of resolution is required round up the reading blank leading zeros etc Least Significant digit roundup 10 20 50 100 m ee he EN 5 i 2 3 na na na 6 A No leading zero blanking Leading zero blanking Right hand digit blanking 7 D El F B na na na o A Ilo i n e N Default 4 n a Not Available 4 10 2nd amp 3rd CONFIG DIGITS Filtering These digits determine the degree of filtering and as a result the speed of response of the display Settable range presently limited to 00 to 07 Select to suit max period of oscillation of input signal 00 no filtering 01 0 5 Sec sample 02 1 0 Sec sample 03 2 0 Sec sample 04 4 0 Sec sample 05 8 0 Sec sample 06 16 0 Sec sample 07 32 0 Sec sample 4 11 4th CONFIG DIGIT BAUD RATE SELECTION DIGIT For the Process In
6. 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 P175X Series of Large Displays Process Input 4 20mA 0 10V 0 20mA 1 5V 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 3 0 30 June 2008 Doc P17_lon p65 NOTES CONTENTS SECTION INTRODUCTION cin dia 22 ea ER 1 0 2 0 2 1 3 0 3 1 3 2 UNPACKING AND INSPECTION eeeeeeeeerseersrrrrrrrrrrersee GENERAL INFORMATION 2 224442000sssessnnessnnesnnneenne nennen General Specific MOS ai nee INTERNAL CABLES csi a ene O POWELL a eo DETAILED OPERATING INFORMATION 4 0 Analogue TP SI dE 4 1 Jumper Functions and POSItIONS ooooocnoonnoccnoccooncnonconcnonononcon conocio nonancnnnoos 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 Analogue Input connections ssessessersenssennennennnensennennnnnennennsnnennnenn RS485 option Output NOteS eee ceceseeteeeseceeceeceseeeeeeeseceeeeneeeeeeeee Contact Closure Remote Programmer connections uueeeenessneneenn Programming your displasia td The Programming Menu A did AA Ad Rrogtamming FIOwChat sea The C
7. You will not normally need to set any jumper positions on this model as they are normally factory set and will not alter any user variable parameters They should be positioned as shown below should their positions be accidentally altered and are now only fitted if the RS422 output option is installed S1 jumpers o T ocoogooo TP1 This is a test point and S2 Jumper no jumpers should be fitted SIGNAL DATA AND CONTACT CLOSURE CONNECTIONS 4 2 Analogue Input Connections The large display can accept mA process input signals directly from an active source can excite passive 2 wire transmitters or can accept voltage inputs Do not ground the shield of the input cable but do connect it to the shield of your extension cable which should also not be grounded Typical examples are shown below Red Current Sig Koma amare No connection to Yellow or Green PLC Red Current Sig No connection to Blue or Green Yellow Excitation Green Voltage Sig DC Voltage Blue Sig Common source No connection to Yellow or Red 4 3 RS485 Data Output Option Factory Fitted only The Serial Data O P option allows you to feed the measured reading to serial input slave displays such as our S17XX series or small 1 8 DIN INTUITIVE S models for remote indication purposes The output is continuous with a new string transmitted at roughly 1 second intervals The format is the reading
8. aterials 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 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 by the distributor LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from l Improper or inadequate maintenance by the buyer 2 Unauthorised modification or misuse 3 Operation outside the environmental specification ofthe product 4 Mishandling or abuse The warranty set forth above is exclusive and no other warranty whether written or oral is expressed or implied We specifically disclaim 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 we be liable for direct indirect incidental or consequential damages including loss of profits whether based on contract tort or any other legal theory 17 18 NOTES 19 Declaration of Conformity Declaration Number EMC1700 Iss 5 Issue Date 14 July 1999 Products Covered 1700 Series Large Displays Title Large Process Load Serial Rate amp Totalising Displays This is to confirm
9. be sure to use good quality pushswitches and lay them out in the same order as shown here OOO MENU SELECT INCR id Allows you to enter the programming menu and steps down all the variable options MENU Allows you to select a digit within a variable for alteration The digit which can be altered flashes Each time you press SELECT the flashing digit moves one place to the SELECT right Also toggles between NETT and GROSS when in display mode Allows you to increase the value of any flashing digit Each press will increase the value INCREMENT LY Also TARES or ZERO s the display when in display mode 10 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 R SPn This is the reading span It is the difference between full scale and zero scale display values relating to 0 and 100 of applied input signal For example if you wish to calibrate your display so that 0 100 input gives a reading of 40 0 to 75 0 your Reading Span is 115 0 You can set the decimal point when in the R Spn setup section by pressing SELECT 5 times until the whole display flashes then pressing INCREMENT to place the decimal point in the desired position R ZEr This is the display value you wish to have with 0 of input signal So for the example given above R Zer wou
10. he least significant digit can be made to count in units 2 s 5 s or 10 s The right hand digit can be blanked effectively centralising the display if less than 5 digit resolution is required If specifically ordered we can supply the displays with a silk screened legend identifying the measurement being displayed for example Kg Deg C etc An optional RS485 output is provided useful for feeding remote mimic displays The configuration settings and calibration constants of the display are stored in non volatile EPROM memory which is retained for at least 10 years Change to the settings is achieved by way of remote contact closure inputs allowing alteration of the unit s configuration menu calibration and brightness The case is sealed to IP65 NEMA4 and the lens is 4mm thick polycarbonate making it ideal for use in food industry washdown applications 1 0 UNPACKING AND INSPECTION 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 Mounting kit where appropriate EN 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 display is part ofa
11. is 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 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 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 use shielded twisted pair extension cable to minimise the amount of noise being fed into the display WARNING RISK OF LETHAL ELECTRICAL SHOCK KA 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 DEVICE 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 Screen Braid 00000 Analog Input 2 Common Blue 12345 3 mA
12. isplay type 2 digit height 4 digit height 6 digit height Analogue input display intended for large remote display use 0 10mA 0 20mA 4 20mA 1 5V 0 10V Can accept RTD or T C types to special order Can be factory scaled to accept non standard ranges Current I P s 45 Ohms Voltage 1 Megohms Nominally 13 VDC at 60mA max 0 02 of range Tempco 50ppm Deg C Zero amp Span fully scaleable remotely Decimal point position selectable Inverse scaling available eg 4 20mA 100 to 0 RS485 at 300 1200 2400 or 9600 Baud Serial ASCII at 300 1200 2400 or 9600 baud 1 start bit 8data or 7 data plus parity and 1 or more stop bits No handshake unit always transmits data UPVC White or Black Sdigit 7 digit 2 288x120 384x120 4 480x168 672x168 6 624x192 864x192 90mm 115 mm including rear cable glands 5 digit 7 digit 2 25Kg 3Kg 4 45Kg 5Kg 6 5 0Kg 6Kg High efficiency red LED 57mm high 7 segment display tiles Ultrabright red LED 102mm high 7 segment display tiles 144mm high characters formed 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 3 0 INTERNAL CABLES The units are supplied with approximately 2 metres of free ended cable for power signal and serial ports You may connect your own cable to th
13. 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 determined 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 9 4 4 Contact closure programming input Function Supplied wire colour Increment Blue Select Green 77 Menu Yellow 16 EE i an Common Red Optional 5 pin D 3 Select plug connected 4 nil 4 5 PROGRAMMING YOUR DISPLAY to display 5 Common The Process Large Display offers useful flexibility in scaling and display presentation and all parameters are adjusted by using the three contact closure programming pushbuttons It is worth spending a little time familiarizing 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
14. ld be 40 0 IP Lo and IP HI are the 0 and 100 input signals respectively typically 4 and 20mA 0 and 10V etc In fact you do not even need to know the actual 0 and 100 signal levels The display measures applied 0 and 100 signals rather than requiring you to tell it the values So if calibrating a weighing platform IP LO means no load on platform IP HI means known deadweight placed on platform equal to R Spn The known deadweight should be as near to full scale capacity as possible to ensure optimum accuracy of calibration though not essential If recalibrating the input stage you would apply 0 signal say Ama at the SURE prompt after IP LO then save this data by pressing INCREMENT keeping it pressed the n pressing SELECT also The display will briefly say IP HI followed again by SURE Now apply 20mA and press INCREMENT keeping it pressed and press SELECT You do not need to carry out this procedure if the display has previously been set for the desired input range For example if your display is calibrated 4 20mA for a display range of 0 100 0 and you wish to recalibrate to have 4 20mA giving 0 60 00 you would simply change R Spn to 60 00 from 100 0 When you come to IP Lo and IP HI in the menu at the prompt SUrE simply press MENU and you will retain the original 4 20mA input calibration CnFIg is the Configuration number This determines the display presentation filtering effect and brightness setting Use
15. lnput Red 4 V Input Green 5 Excitation Yellow 1 Screen Braid oo o o o Remote Programmer an Red 1 2 3 Select Green 4 Increment Blue 5 Menu Yellow 1 Screen Braid Seria Data O P 2 Common Yellow 1234 optional 3 DataB Green 4 Data A Blue 3 2 POWER CABLES The unit incorporates a switching power supply to enable the unit to operate over the full 95 to 265 Volts range The power lead must be of 3 core construction with the grounding wire bonded to a good ground Line Brown DC for DC option Neutral Blue DC for DC option No Connection Earth Green Yellow 7 Remote Programmer Analogue Input Red Common Yellow Sig Excitation Yellow Menu Red Current Signal Green Select Green Volt Signal Blue Increment u _ Blue Common Serial O P Option Blue A Green B Yellow Comm 4 0 ANALOGUE INPUT SELECTION If when ordering your display you specified the input type required this will have been set for you prior to despatch and should be noted on the label on the rear of the display If you did not specify the input type this will be the factory default of 4 20mA reading 0 100 00 You can re calibrate the meter without making any mechanical alterations to accept 0 20mA 0 10mA 0 10V 1 5V etc Simply re calibrate the display whilst injecting 0 and 100 of desired signal range as described on pages 8 11 4 1 JUMPER FUNCTIONS AND POSITIONS only if RS422 output option fitted
16. onfiguration Number and what it does nessessessessessensennennennn Ist Config Number Digit Behavior eennnensnnennnn 4 10 2nd amp 3rd Config Number Digit Filtering nen 4 11 4th Config Number Digit Data O P Baud Rate nne 4 12 5th Config Number Digit Response Number eenene 4 13 6th INVISIBLE Config Number Digit Brightness setting 5 0 5 1 5 2 5 3 5 4 5 5 6 0 7 0 8 0 INSTALLATION 00d dt E Mounting POSTINGS a da A ee Walli mounting niseni ie i a a lei SUSPENDE A ua Multiple display mounting essessessessensessensensensennensennennennnnennnnnn TROUBLE SHOOTING AND MAINTENANCE Error messages SAFETY CONSIDERATIONS gt nn nn WARRANT Y unse ll N Oo 0 0 10 11 12 13 13 13 13 14 14 14 15 15 15 15 16 16 16 17 THE PROCESS INPUT MODEL P175X INTRODUCTION This model is intended for large measurement display use It accepts the most commonly encountered process signals of 0 10mA 0 20mA 4 20ma 1 5VDC and 0 10VDC and is fully scaleable to read in engineering units Scaling can be carried out remotely whilst the display is in situ and because no potentiometers are used the display stability is superb An excitation supply is available to power 2 wire transmitters or to boost loop drive if required The decimal point can be placed as required and t
17. put display this digit of the configuration number is used to set the baud rate of the optional RS485 transmission output Baud Rate digit 4 5 6 7 Default 5 1200 Baud Baud Rate 300 1200 2400 9600 13 4 12 5th CONFIG DIGIT RESPONSE NUMBER This character has no relevance on the process meter as it is concerned solely with serial data input responses It is set to default as 4 4 13 6th INVISIBLE SETUP DIGIT BRIGHTNESS The brightness of the display can be altered using remote pushbutton programming Once in the Configuration sequence use Select to make the right hand digit flash Press Select once more and the whole Configuration number will start flashing Now each time you press Increment you will notice that the display s brightness will change There are 4 choices of display brightness When a suitable brightness has been found you may store it by pressing Menu at which point the display will show the prompt SUrE Press and hold in the INCREMENT button and without releasing it then also press the SELECT button 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 remo
18. spex cleaner The 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 power input to prevent damage due to short spikes on the supply Check wiring prior to powering the units ERROR MESSAGES Aclue to the source of problems may be given by certain error messages as shown below Means OverLoad Your I P signal is more than 22mA or 11 VDC Check input cabling connections and ri ia input source If current I P measure resistance between blue and red Input wires which should be approx Or L 45 Ohms If greater either the input jumper has not been fitted or an excessive current has been fed to the unit blowing the input shunt resistor Check wiring n HS Means OverRange Your scaling has meant that the display value is exceeding 99999 Check scaling and LII I Input level to ensure they are within the permissible limits of the display 7 0 SAFETY CONSIDERATIONS This product 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 and are 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 The equipment must be disconnected from the supply
19. that the Products covered by this declaration have been designed and 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 amp are designed to meet EN61010 safety directive 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 1 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
20. to the power earth terminal Signed as true and correct for and on behalf of London Electronics Ltd J R Lees Director 20
21. ve 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 displays 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 shielded 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 ground the shields of signal data or programmer cables 14 5 1 MOUNTING POSITIONS 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 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 digitmm Kg 5 digit mm 7 digit mm Sealing 57mm 291x142 2 5 387x142 3 0 293x144 3
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