拉姆齐

RAMSEY WEIGHT INDICATOR/TRANSMITTER MINI 11-100P/F MINI 11-100F MINI 11-100P OPERATING AND SERVICE MANUAL DIRECTIVES STANDARDS CEE 93/68 EMI : EN 55011 – CEI 110-6 CEE 89/336 (EMI-EMC) EMC : EN 50082-1, IEC 801-2e, IEC 801-4 CEE 73/23 (Low Voltage Dir.) LVD : EN 61010-1 On request, this manual is available in ITALIAN language File : MN-11100PF-D002A(En) Date : December 2004 1 INDEX 1. INTRODUCTION 1.1 General 1.2 Technical specifications 1.3 Additional OPTIONS boards 1.4 MINI line 1.5 Warranty 2. PREIMINARY CHECK 2.1 Inspecting and unpacking 2.2 Stocking 3. INSTALLATION 3.1 Mounting 3.2 Electrical connections 3.3 Using the sensing 3.4 Supply voltage 3.5 Cleaning instrument instruction 4. SET UP OF SCALE PARAMETERS 4.1 General 4.2 Set up 4.3 Scale capacity 4.4 Measure unit 4.5 Scale division 4.6 Sample weight 5. SCALE CALIBRATION 5.1 General 5.2 AUTO ZERO calibration 5.3 AUTO SPAN calibration with sample weights 5.4 AUTO SPAN calibration with electronic resistor 5.4.1. General 5.4.2. Accuracy 5.4.3. Equivalent computation with electronic resistor 5.4.4. AUTO SPAN calibration with electronic resistor 5.4.5. Modifying the filter factor 6. ACCESS PROTECTION TO KEYBOARD 6.1 Protection levels 6.2 Access code 6.3 How to insert the password 6.4 Modifying the password 7. NORMAL 7.1 Keys of normal 7.2 Use of [T] key 2 8. ALARM 8.1 General 8.2 Alarms identification 8.3 Running options 8.4 Alarms reset 8.5 How to enable or disable an alarm function 9. OPTIONAL FUNCTIONS 9.1 General 9.2 Options available in the standard instrument 9.2.1 Setting thresholds (1/2/3/4) 9.2.2 Setting digital input 9.2.3 Setting output 9.2.4 AZT option (auto zero tracking function) 9.2.5 TOTALIZER option 9.2.6 PEACK DET option 9.2.7 CLOCK option 9.3 Other special functions 9.3.1 Current mA OUTPUT 9.3.1.1 Modifying the mA RANGE 9.3.1.2 mA VALUE selection 9.3.1.3 mA ZERO and mA 100% selection 9.3.1.4 mA ABS VAL selection 9.3.2 Serial COMMUNICATION LINE 9.3.2.1 Set up of the serial communication line 9.4 SET UP data recording 9.5 TEST functions 10. ADVANCED USE 11. MAINTENANCE 11.1 Preventing maintenance 12. SPARE PARTS LIST 3 1. INTRODUCTION 1.1 GENERAL This manual contains all the instructions and informations necessary for installing and the main parameters used for scale calibration. 1.2 TECHNICAL SPECIFICATIONS POWER SUPPLY Voltage 115VAC – Fuse (T1A) Dimens. 5x20mm 230VAC – Fuse (T0.5A) Dimens. 5x20mm (+10% -15%) Frequency 50/60 Hz Power 25 V.A. Installation Class (III) TRANSDUCER Power Supply of load cell 10VDC 0.5% Minimum load 88 Ohm (6 cells max, 350 Ohm) Input Signal -25mV / + 25mV Sensing Max fall of tension between the jumpers of power supply and sensing 3V Max lenght of the connection between the load cell and 11-100 by Ramsey standard cable, without sensing = 60m INDICATOR ACCURACY Resolution 32000 divisions (with input at 25mV) Linearity +/- 0.05 on measure range Zero thermal drift +/- 0.5 uV/°C Span thermal drift +/- 25 ppm/°C MEMORY EPROM size of 32 Kbytes Static RAM size of 32 Kbytes E2PROM size of 16 Kbytes for permanent data recording Data retention in case of power off : no time limit CPU TMPZ 84C015.AF-6 8 bit, clock frequency 12.288 MHz INPUTS Three digital dry contact inputs are available on the instrument. A 24VDC supply is available for supplying the external contacts. Available Functions : - Set Tare (Default on input 1) - Reset Tare (Default on input 2) - Totalize Weight - Clear Total - Hold Weight Indication - Clear Peack Memory - Alarms Reset (Default on input 3) - Not Used 4 OUTPUTS Four relay outputs are providede (only for the models with an N.O. contact without tension. Each contact can drive 0.5A at 240VAC or 48vdc max. Available Functions : - Alarm - Ready - Weight Stable - Weight has been totalized - Total Cleared - Threshold 1 (Default on output 1) - Threshold 2 (Default on output 2) - Threshold 3 (Default on output 3) - Threshold 4 (Default on output 4) - Not used ENVIRONMENTAL SPECIFICATIONS - Operating Temperature : -10 to +50°C - Stocking Temperature : -20 to +70°C - Humidity (operating & stocking) : < 90% (without condensation) PACKAGING Mod.11-100F Field Mounting – Renforced fiberglass housing dim. 300x250x160mm Protection IP65 Weight 6kg Mod.11-100P Panel Mounting – Prot. IP54, all housing IP00 Weight 1kg WIRING The instrument has been provided with a removable terminal block. Maximum cable section : 1.5mmq DISPLAY - Type LCD - Characters height 8mm - Number of characters 16 - Type of display Alphanumeric - Displaying Good quality in all conditions SIGNAL LED - Quantity 5 - Functions Threshold 1,2,3,4 Stable weight Cumulative alarms Instrument is ready Weight totalized Total cleared 5 CURRENT OUTPUT BOARD - Selectable 0-20mA; 4-20mA; 20-0mA; 20-4mA - Maximum load 500 Ohm - Maximum tension on load 20VDC - Resolution 12 bit (4096 divisions) - Linearity 0.1 % - Insulation Galvanic, 1500 VRMS Selectable functions : -Net -Gross (Default) - Peak Weight 1.3 ADDITIONAL BOARD SERIAL COMMUNICATION BOARD (OPTION) Cod.11-100-11 Available standars (select by jumpers) - RS 423 (RS 232) Null modem (ready/busy signal) - RS 422 (RS 485) Two wires not-isolated - RS 422 (RS 485) Four wires not-isolated - Wires connection Terminal block - Available protocols (on request) Ramsey PC MASTER (Standard) – Siemens 3964R – AEG Modbus Allen Bradley DF1 SERIAL OUT (COMM MINI LINE) (OPTION) Used only with Thermo Ramsey instruments 1.4 MINI LINE Available model in the MINI line : 11-100P/F-RC Weight indicator with four threshold relays and insulated output 0-20 or 4-20mA. 11-100P/F-RCS Weight indicator with four threshold relays and serial output RS 423 and RS 422 and insulated output 0-20mA or 4-20mA. 1.5 WARRANTY Thermo Fisher Ramsey warranty is given for a period of twelve mounths from the start – up, but no longer than eighteen months from delvery, the good operation of the delivered devices. Thermo Ramsey’s obligation under warranty is conditioned upon the return of the defective equipment within eight days from discovery, transportation charges prepaid to Thermo Ramsey’s workshop, with a detailed description of the defects. Thermo Ramsey’s obligation is relevant only to repairs and/or replacements that Thermo Ramsey considers to be suitable for the good operation of the device according to normal use and required as a conseguence of a fact of its own. If not specifically and expressively defined with a written act, it will be excluded every obligation for Thermo Ramsey on repairs or replacements and/or othr service outside its workshop. 6 2. PRELIMINARY CHECK 2.1 INSPECTING AND UNPACKING The instrument MINI 11-100 is a completely checked and properly packed at the factory. To be sure of the absence of any damage due to the transport, check the package very carefully before unpacking. In case of demages inform the carrier. 2.2 STOCKING If the instrument has not to be immediately installed, it could be stored completely packed in a covered place, with temperature from –20 and +70°C and relative humidity less than 90%.The instrument is provided with a battery for data retention without any limit of time. 3. INSTALLATION 3.1 MOUNTING The mounting place must be carefully selected, avoiding places where there is vibrations, high temperature or humidity. Model 11-100P is supplied for mounting on a covered front panel with any inclination compared to the orizontal position. Model 11-100F is supplied for mounting in open air. It is suggested a mounting in a protected position against rain about, in a place with strong vibrations, it is better to provide a mounting using non vibrating devices. The instruments must be positioned with a suitable height in order to easily read the display and conveniently access to thr key board. 3.2 ELECTRICAL CONNECTIONS THE INSTRUMENT MUST BE CONNECTED WITH EQUIPMENTS INSTALLATION CLASS (III) Electrical connections to terminals have to be executed using flexible cable section 1.5mm max (certified by IEC227 or IEC245 standard) provided with cable terminal. For Model 11-100F the input/output cables must be executed using press cables (certified by standards) for the keep the instrument protection IP65. - Load cell connection cable : 4 x 1.5mmq, max 60m Exceeding 60m add shielded cable 2 x 1.5mmq for sensing connection. - Output current cable : Shielded cable 2 x 1.5mmq - Output and input commands : Use 1.5mmq cable. 7 7A WARNING 1- Don’t put signal cables near power cables 2- Connect shields only where indicated on diagrams 3- Connect ground as specified by standars 4- Never use a Megger to verify connections 3.3 USING THE SENSING When the distance of load cell and/or cells are more than 60m use a shielded cable 2x1.5mm, connected to 13(+) and 16(-) terminal blocks (see Dwg ST11-100P/F/04). Sensing function is used to feed back the power supply to maintain the load cell(s) voltage equal to the desired value even in case of high cable impedance. If the sensing has to be used, S1 and S2 jumpers on Mother board must be opened. 3.4 SUPPLY VOLTAGE The MINI is a dual voltage instrument 115VAC or 230VAC To select the appropiate voltage (Mod.11-100F) by the voltage selector mounted near the main switch (see pag.7A). (Mof.11-100P) the voltage selector (INT2) is on the AC BOARD internal instrument. Before powering on the instrument, check if the power supply you are using is appropiate. Verify electrical connections and particulary check that no conductors at high tension have been connected to terminals or signal connectors. 3.5 CLEANING INSTRUMENT INSTRUCTIONS Conclude the instrument installation and wiring, clean residuals of rubber or wire. Is not necessary other particulary cleaning because the instrument MOD.11-100F have protection IP65. IF THE INSTRUMENT IS NOT INSTALLED AND CONNECTED IN COMPLIANCE WITH THE INDICATIONS OF THIS MANUAL, Thermo Scientific DOES NOT ASSUME RESPONSABILITY ABOUT THE INSTRUMENT. 4. SET UP OF SCALE PARAMETERS 4.1 GENERAL If no specific application has been requested, the instrument will be supplie with following data : Scale capacity 300.0 kg Measure unit kg Resolution 0.1 kg If a specific application has been requested besides this manual, our Technical Department will deliver a documentation containing all the specific data of your scale. 4.2 SET UP WARNING : press RUN to cancel each wrong selection At the end of each selection push [RUN] to come back to normal running. There are three ways to access to parameters of MINI instruments : a) With the function key [SET UP], to modify all data of the instrument general set up. b) With the function key [CAL] for calibrations. c) With the function key [SET POINT], to insert the parameters of the thresholds. The drawing in the following pages show how to enter numeric data. 8 9 10 4.3 SCALE CAPACITY The scale capacity is expressed in engineering units and it is usually a value higher than the working rate, compared to the nominal capacity of load cells used in the application. Ex : Load cell used – N°3 with max capacity 500kg – Total rate 1500kg Working rate 500kg – Scale capacity defined at 600.0 - SELECTING THE DECIMAL POINT Push [SET-UP] [↑] [ENTER], the display will show DECIMAL POINT; push [ENTER] to display the value in memoty. Push [ENTER] and use [↑] key until the desired value is displayed, then [ENTER] again. Finally press [RUN]. Select the value from the following table : 0 0 3 0.000 1 0.0 4 0.0000 2 0.00 - SELECTING THE SCALE CAPACITY Push [SET-UP] [↑] [ENTER] [↑] and the display will show SCALE CAPACITY ; Push [ENTER] and the actual value of scale will be shown (300.0). Press [ENTER] and digit 000300.0, press [ENTER]. Compose the new value 600.0 pressing [↑] [→] followed by ENTER. Press [RUN]. 4.4 MEASURE UNIT The measure unit can be selected among the following : g kg q t LB LT Act as follows : Press [SET-UP] [↑] [ENTER] [↑] [↑] [↑] and MEASURE UNIT will be displayed. Press [ENTER] and the instrument will show the memorized measure unit. Push [ENTER] and use [↑] till you read the information you need and then press [ENTER] . Push [RUN] . 4.5 SCALE DIVISION The scale division usually represents the instrument’s resolution and it does not exceed 3000 divisions. Ex : Full scale 600.0 (6000 divisions) Minimum division = 6000 : 3000 = 2 (200 g resolution) Push [SET-UP] [↑] [ENTER] [↑] [↑] [ENTER], the display will show the scale division in memory. Press [ENTER] and use the [↑] key until the desired value is shown, then [ENTER] again and then [RUN]. 4.6 SAMPLE WEIGHT The calibration with sampling weights is considered as the most reliable. To perform this kind of calibration some type-tested sample weights are needed or just use sample masses already weighed with a scale having a high accuracy. The value is suggested to be encluded between 40 and 80% of full scale. Ex : defined ample weight = 420.0 kg Press [CAL] [↑] [ENTER] ; the display will show SAMPLE WEIGHT. Press [ENTER] and the value in memory will be displayed ; push [ENTER] again and use the [↑] and [→] key to compose the desired value ; than [ENTER] again and [RUN]. 11 5. SCALE CALIBRATION 5.1 GENERAL A scale calibration is made of a ZERO calibration with empty scale and SPAN calibration using a sample weight. Before starting any kind of operation, make sure of the right mounting of load cells and empty the scale so that the tare weight is only acting on load cell(s). WARNING ! Press [RUN] to escape each wrong operation. 5.2 AUTO ZERO CALIBRATION Press [CAL] [ENTER] and the display will show WAIT. Wait till the message disappears (or press [ENTER] if you want to reduce the calibration time). At the end the instrument will show 0.0 kg. Check for the repeatibility of scale : putting on and off the weight the indication must come back to zero +/- one division. 5.3.AUTO SPAN CALIBRATION WITH SAMPLE WEIGHTS Press the sample weight possibly in the centre of scale (ex.: 420.0 kg). Push [CAL] [↑] and the display will show AUTO SPAN WEIGHTS ; Push [ENTER] [↑], the display will show WEIGHTS LOADED ? Push [ENTER] the following message will appeare : WAIT At the end the value of the sample weights will be displayed. Check for the repeatibility of scale : putting on and off the weight the indication must be come back to the initial value +/- one division. If the control gives negative results, carefully check the mechnical part. 5.4 AUTO SPAN CALIBRATION WITH ELECTRONIC RESISTOR 5.4.1 GENERAL An instrumental calibration can be made with the MINI. Use a precision resistor to simulate a weight on the scale when a calibration with sample weights is completely impossible.If the instrument has been ordered for a specific application, a resistor of the proper value will be installed inside the instrument before delivery by Thermo Ramsey ; its value computed by our Tech.Departement keeping count of the load cells capacity and the scale capacity used in the application. If the instrument has not been set, than a 49.9 Kohm resistor will be used. 5.4.2 ACCURACY Using the electronic resistor, the calibration error in the best condition will be lower than strictly connected to the mechanical installation and to the values of constants inserted to obtain the equivalent load. Usually we can have an error lower than +/- 1-2%. 12 EQUIVALENT COMPUTATION WITH ELECTRONIC RESISTOR Use the following formula to obtain the value of equivqlent weight : P x N x 500 RC CALC R CAL = x K (2 x Rs x N) + Rc Where : CALC R CAL = Equivalent weight in kg P = Nominal capacity of load cell in kg N = Number of load cells in parallel K = Load cell sensibility mV/V (usually 2mV/V) Rc = Bridge resistor power supply side (usually 350 Ohm) Rs = Calibration resistor in Ohm For some standard values of resistors see the following table : ELECTRONIC CAL. – EQUIVALENT LOAD TABLE (Valid for load cells Mod.10-27/28/30/31A/32/9363). ELECTRONIC REISTOR F.S. OF A SINGLE LOAD CELL EQUIVAL. LOAD % OF SIMULATED WEIGHT REFERRED TO THE TOTAL AMOUNT OF NOMINAL CAPACITY OF LOAD CELL KOhm kg kg 1 2 3 4 6 20 50 109.1 Not Used Not Used 100 218.2 Not Used Not Used 72.7 54.5 36.36 200 436.04 Not Used Not Used 3 5 49.9 50 43.76 100 87.52 87.52 43.76 29.1 21.8 14.58 200 175.04 7 8 100 50 21.85 100 43.71 43.71 21.85 14.5 10.9 7.28 200 87.42 7 2 150 50 14.57 100 29.15 29.15 14.57 9.71 7.28 4.86 200 5.83 221 50 9.89 100 19.78 19.78 9.89 6.59 4.94 3.29 200 39.57 499 50 4.38 100 8.76 8.76 4.38 2.92 2.19 1.46 200 17.53 How to read the table : 1) Three scale capacities (commonly used) have been used. 2) If the scale capacity is multiple of one of the three values, the decimal point will be moved right as many places as many nulls have been added to the scale capacity. Ex.: F.S. 50 kg = 43.76 kg equivalent load F.S. 500 kg = 437.6 kg equivalent load Example of resistor used in a weighing system with more than one load cell. Total scale capacity = 10000 kg Nominal capacity of one load cell = 5000 kg Number of load cells = 3 Total capacity of load cells = 15000 kg (Nominal cell capacity 5000 kg x 3 load cells) 13 Now