Summary of Contents for Thermo Ramsey MINI 11-100P
- Page 1 WEIGHT INDICATOR/TRANSMITTER MINI 11-100P/F MINI 11-100F MINI 11-100P OPERATING AND SERVICE MANUAL...
- Page 2 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 : MI04ISE1 Date : March 2002...
- Page 3 INDEX INTRODUCTION 1.1 General 1.2 Technical specifications 1.3 Additional OPTIONS boards 1.4 MINI line 1.5 Warranty PREIMINARY CHECK 2.1 Inspecting and unpacking 2.2 Stocking INSTALLATION 3.1 Mounting 3.2 Electrical connections 3.3 Using the sensing 3.4 Supply voltage 3.5 Cleaning instrument instruction SET UP OF SCALE PARAMETERS 4.1 General 4.2 Set up...
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Page 4: Optional Functions
ALARM General Alarms identification Running options Alarms reset How to enable or disable an alarm function OPTIONAL FUNCTIONS General 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... -
Page 5: Technical Specifications
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... -
Page 6: Environmental Specifications
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) -
Page 7: Warranty
RS 422 and insulated output 0-20mA or 4-20mA. 1.5 WARRANTY Thermo 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. - Page 8 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...
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Page 10: Supply Voltage
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). -
Page 13: Scale Capacity
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 –... -
Page 14: Auto Zero Calibration
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. - Page 15 5.4.3 EQUIVALENT COMPUTATION WITH ELECTRONIC RESISTOR Use the following formula to obtain the value of equivqlent weight : P x N x 500 CALC R CAL = __________ x _______________ 2 x Rs x (N+Rc) Where : CALC R CAL = Equivalent weight in kg = Nominal capacity of load cell in kg = Number of load cells in parallel...
- Page 16 Now, choose a resistor to simulate a weight included between 40 and 80% of scale capacity : Resistor to be used = 49.9 Kohm Simulated weight = 4.376 kg % of simulated weight referred to the total capacity of load cells (15000 kg) = 29.17 % % of simulated weight referred to the scale capacity = 43.76 %...
- Page 17 Before enteringa new password, be sure to make a written copy of it and to store it in a safe place. If the new password will be forgotten, the only way to restore acces to the set up data will be to send the instrument to Thermo Ramsey for service.
- Page 18 NORMAL USE 7.1 KEYS OF NORMAL USE The functions which can be used during normal running are the following : [RUN] key Always returns to the display of the weight. If used while the weight. If used while the net weight is displayed, will open the SET UP menu.
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Page 19: Alarms Reset
ALARMS 8.1 GENERALS Inside the program of the MINI some control functions are included, which allow to verify the correct working of the instruemnt, of the load cells and of the weighing process. 8.2 ALARMS IDENTIFICATION When the instrument generates an alarm, the cause is displayed alternatively to the weight indication. - Page 20 COMMUNICATION BOARD (OPTIONAL) a serial signal can be transmetted to supervisor or control instruments, or printer. Optional boards are usually installed by Thermo Ramsey personnel only. 9.2 OPTIONS AVAILABLE IN STANDARD INSTRUMENT The following list contains options that are already implemented in the standard instrument and that can be recalled without installing additional hardware.
- Page 21 9.2.2 DIGITAL INPUTS SETTING The instrument can be connected to three dry contacts. One of the following functions can be assigned to each input : SET TARE Copy gross weight into the tare memory. Net weight is set to zero RESET TARE Clear tare memory.
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Page 22: Total Counter
9.2.5 TOTALIZER (OPTION) This option is used to know the amount of material weighed with the scale. If the scale is used for a number of weighings and if the number and the total amount has to be recordered, set the instrument as follows : Press [SET UP] [↑][↑], the message OPTIONS will be displayed;... - Page 23 9.3.1.1 MODIFYING mA RANGE The instrument is pre-set to the 4-20 mA operating range. Other available ranges are : 0-20mA; 20-0mA; 20-4mA. Close the jumper J1 on the optional board or insert a resistance of 500 Ohm on the terminal block 29 and 30 to select the output with 0-10V. To select a range different from the default one, act as follows : Press [SET UP] [↑] [↑] [↑] [↑], the message CURRENT OUTPUT will be displayed.
- Page 24 9.3.1.4 mA ABS VAL SELECTION The mA output can be set for a charging or discharging batch. CHARGE BATCH mA is proportional to the material loaded in the hopper. DISCHARGE BATCH Hopper has been filled up and SET TARA has been made [-T-], the mA signal is proportional to the material taken out from the hopper.
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Page 25: Test Functions
Then with [↑] set the communication data. LINE SPEED can be 300, 600, 1200, 2400, 4800, 9600, 19200, 38400 baud STOP BITS can be 1 or 2 PARITY can be EVEN, ODD, NONE WORD LENGHT can be 7 or 8 The communication protocols are described on a separate manual. -
Page 27: Advanced Use
10. ADVANCED USE To use the advanced functions of the instrument refer to Service Manual. For those companies who intend to train their personnel, Thermo Ramsey organizes some individual and group courses of instruction. For information, contact Service Departement. 11. MAINTENANCE 11.1 PREVENTING MAINTENANCE...
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