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M obrey MSM400 Intelligent Suspended Solids Monitor Software Version 1.1 Level Instruction Leaflet IP258 November 2004 www.mobrey.com.
IP258 2 CONTENTS Page 1. PRODUCT INTRODUCTION 5 1. 1 The MSM400 slurry monitoring system 5 1. 2 Description 5 2. SENSOR TYPES 2. 1 Safety Precautions 7 2. 2 Hazardous Area systems 7 2. 3 Quick Start guide 8 3. CONTROL UNITS 9 3. 1 MSM400 Displays and Keypad 9 3.
IP258 3 Safety Precautions The following safety precautions should be observed before using this product or working on the attached cables. This MSM400 product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury .
IP258 4 QUICK ST AR T 1 ) Connect the mains supply to the terminal connections L, N and E as shown above. 2 ) Connect the sensor to the terminals as shown above. 3 ) With power on, press a button on the key pad as shown below . This will access the main menu.
IP258 5 1. 0 PRODUCT INTRODUCTION 1. 1 THE MSM400 SLURRY MONITORING SYSTEM The MSM400 is an advanced Microprocessor based, HART compatible, versatile slurry measurement system, with a wide range of built-in display , control and alarm function options.
IP258 6 The relationship between attenuation and suspended solids is shown graphically in Figure 2. Calibration of the unit involves adjustment of the zero point, by setting up the sensors in clean liquid (supernatant), and then setting the slope of the straight line graph, either according to past data or from site samples.
IP258 7 20 61 102 30 30 22 Standard gap = 150mm Specify gap 50 to 450mm 2. 2 MOBREY PIPE SECTION SENSORS The Mobrey pipe section is used as part of a pipeline transporting the slurry to be monitored.
IP258 8 2.3 SENSOR TYPE NUMBERING SYSTEM MSM *** * *** * * / * N o. - Indicates special requirement i.e. 1 - with PN16 flanges 7 - 7m cable supplied as standard D - Customer defined upto 100m (must be clearly stated on order V - Spray valve (pipe section only) P - No spray valve (pipe section only) T - 433 tank mount 0 00 - Sensor size i.
IP258 9 The MSM400 is wall mounted: the lower section of the housing is for cable connections, and the upper part has the 4 line LCD and keypad controls. The whole unit is IP65. T ypically the display will show as in Figure 7, the top line shows whether the programme lock is open together with the time display .
IP258 10 3.2 SPECIFICA TIONS--MSM400 Housing ABS with polycarbonate lid, IP65 External dimensions 256.5 wide, 236.7 high, 95.0 deep, including wall mounting brackets Cable Glands 3x 16mm holes and plastic glands supplied 3x 20mm holes and plastic glands supplied Weight 2 kg Wall Mounting holes 6 off Diam 5.
IP258 11 4 INST ALLA TION 4. 1 PRELIMINARY CHECKS The MSM400 system is normally supplied in two packages, one for the MSM400 Control Unit and one for the sensor , whether it is a pipe section or a tank sensor . T ake care in handling the pipe section.
IP258 12 4. 4 SENSOR CABLES The ultrasonic drive signals on the sensor cables are normally at 1MHz and 3.3MHz. The cables are a special construction of two separately screened twisted pairs, designed to meet electromagnetic compatibility regulations.
IP258 13 4. 6 ELECTRICAL CONNECTIONS All field wiring connections are accessible by removing the lower lid, which is secured by two screws. Note that it is the responsibility of the installer to observe all local regulations and approval requirements, and to use cable to suit the environmental requirements of the particular application.
IP258 14 SENSOR CONNECTIONS The sensor connections are on the left side of the terminal enclosure. Each sensor has two screened twisted wire pairs, either as one dual pair cable, or two separate pairs One pair is connected to the TX (transmit) group and the other to the RX (receive) group.
IP258 15 TRIGGER INPUTS There is trigger input D1. This can be used to control desludge and other functions see programming section. The digital trigger input is connected as shown below: A voltage greater than 2V on T erminal 8 (D1) causes trigger input 1 to be active.
IP258 16 5. 0 PROGRAMMING 5. 1 The operation of the MSM400 is controlled by means of programmable parameters. These are stored in memory and may be set by the user to define variables such as calibration scale factors, set points, and modes of operation.
IP258 17 3. Use the down arrow key (ß) to highlight the TOGGLE RUN option and select it using the “ENT” key . The TOGGLE RUN screen is then displayed: TOGGLE RUN 0 0 4. T o open (or close) the padlock press ENT as required. Press ESC to return to the main menu.
IP258 18 17 . The value of the digit may now be incremented or decremented by pressing ⇑ ⇓ . 0 RL1 On Point% 0 00 3 .00 P411 18 . Press ENT to store the value. The highlighting will disappear . If an invalid number is entered then the display will revert to the last valid value.
IP258 19 6. 2 RECHECKING ZERO It is recommended that the zero is checked regularly . The frequency of re-calibration is dependent on the process. However , it is suggested that this be done at least every 6 months.
IP258 20 The display will show the following. SET ZERO 0 In clear liquor 0 please wait After a few seconds the display will show the following. SET ZERO 0 In clear liquor 0 Press ENT to set 23.1dB 26.2dB The two dB values at the bottom of the screen are the zero values for the operating frequencies of the sensor (1MHz and 3.
IP258 21 After a few secnds the display will show the following. SET SPAN 0 In sample 1 0 Press ENT to set 33.6dB 44.2dB The bottom line of the display shows the attenuation caused by the sludge. During a desludge these readings will fluctuate due to random variations in the sludge density .
IP258 22 6. 6 MAXIMUM % SOLIDS T o complete the calibration and to enable the system to automatically select the optimum frequency of operation., it is necessary to set the maximum % solids that the system is required to measure. In the AUTOCAL Menu, select ‘Max % Solids’ (P 160) and enter the value required.
IP258 23 Under stable operating conditions, the objective is to record the MSM400 attenuation figure, and immediately take a sample of the slurry present between the sensor faces.This is then analysed in the lab, to derive the solids %, and this % value is later linked to the previous ultrasonic attenuation.
IP258 24 7.0 PROGRAMMING THE MSM400 FUNCTIONS DUTY (MODE) DESLUDGE MODE. There are several methods of starting, stopping, overriding and stopping early a de-sludge operation. The desired options can be selected in the SETUP – DUTY (Mode) – DESLUDGE menu.
IP258 25 Starting desludge This is controlled by the “Start on” function in the DESLUDGE menu. This should be set to “T ime”. Cycles will begin at “Start T ime 1” and repeat at intervals “Interval 1” until “Start T ime 2”. After this, cycles will repeat at intervals “Interval 2”.
IP258 26 8. Scroll down to “Start time #1” and press ENT . 9. Use ⇒ key to highlight the first digit in the time, scroll up and down to edit the digit. Use the left and right arrows to move to the next digit (the time is programmed in hours and minutes h : m).
IP258 27 7. 1 OUTPUTS 7. 2 CURRENT OUTPUT The operation of the current output is set up by four different parameters and is always controlled by the process variable (PV), which is normally % suspended solids. These are found in SETUP – OUTPUT – CURRENT OUTPUT .
IP258 28 c) ALARM The relays can be set for alarm mode conditions by selecting the option in SETUP – OUTPUT – RELA Y – Relay * mode. See the section below titled ALARM. 7.4 ALARM There are six different alarms in the SETUP - OUTPUT - ALARM menu.
IP258 29 The display has a backlight, which can be set to On, Off or Auto. When set to Auto the backlight automatically turns off after a few minutes if no keys are pressed. 7. 7 ENGINEERING FREQUENCY SET The frequency of operation is normally set automatically .
IP258 30 8.0 HART SMART Communications The MSM400 is compatible with the HART digital signalling system, either as well as the 4-20 mA output , or on a Bus system. MSM400 supports Version 5.x of the HART protocol, and is fully supported by the MOBREY CK-1 HHC (Hand Held Communicator) and by the UNIVERSAL 275 HHC.
IP258 31 FULL MENU STRUCTURE - LOCA TION OF P ARAMETERS MAIN MENU SUB MENU 1 SUB MENU 2 P ARAMETER DESCRIPTION Par No. TOGGLE RUN T oggle CALIBRA TION AUTOCAL SET ZERO L125 (specific) S ET SP AN L126 .
IP258 32 MAIN MENU SUB MENU 1 SUB MENU 2 P ARAMETER DESCRIPTION Par No. SETUP (Contd) ALARM Memory Fault Alarm P540 PV Out of Limits P541 Current Saturated P542 T emperature Out of Limits P543 Logging.
IP258 33 Parameter list and description P=Parameter , D=Diagnostic Display Parameter Parameter Description Min Ma x Default No. value value Ex-Factory P100 Sensor Gap in mm. This is a user entered parameter (optional). This value is ignored when an alternative span calibration is caried out (i.
IP258 34 Parameter Description Min. Max. Default No. value value Ex-Factory P130 Span 1 @ 1MHz Measured attenuation - - 0.0 P131 Span 1 @ 3.3MHz Measured attenuation - - 0. 0 P132 Span 2 @ 1MHz Measured attenuation - - 0.0 P133 Span 2 @ 3.3MHz Measured attenuation - - 0.
IP258 35 Parameter Description Min. Max. Default No. value value Ex-Factory P400 Lower range value The mA set point for minimum PV in selected units - - 0 P401 Upper range value The mA set point for maximum PV in selected units - - auto P402 Alarm action The is the value that the current will drive to on alarm action.
IP258 36 Parameter Description Min. Max. Default No. value value Ex-Factory P540 Memory Fault Alarm If the control unit detects a memory fault 0 3 both P541 PV Out of Limits If the Pv is out of limits.
IP258 37 Parameter Description Min. Max. Default No. value value Ex-Factory D750 Model Code Hart parameter - - - D751 Serial Number - Control Unit - - - Store as Final Assembly Number (F AN) D752 Hard.
IP258 38 APPENDIX A3 : HART and PSION Operating Instructions 1.0. HART CONSIDERA TIONS Special Considerations for HART If the HART communications facility built into the control unit will be used at t.
IP258 39 2. 0 SMART COMMUNICA TION WITH THE MOBREY MSM400 With a SMART HHC, you can make adjustments and calibrate your MSM400 at any point on the two wire connection to the control unit. Y ou can also make many other adjustments and obtain operational and diagnostic information using the HHC.
IP258 40 2. 2 Further customisation using the SMART HHC There are some other features of the control unit that can be changed at this stage: Identity The following parameters can be recalled from the .
IP258 41 Appendix D D. HANDHELD COMMUNICA TOR – MOBREY – CK* D.1.0. Hand Held Communicator – Assembly Instructions The MOBREY -CK* SMAR T Hand Held Communicator is supplied as a kit of items (Figure DI) which are assembled as follows: D.
IP258 42 Fig DII. : Loop diagram.
IP258 43 Fig D1 : MOBREY -CK* HHC assembly.
IP258 44 T echnical Notes: 1. At no time can the SMART communicator be attached across A1-A2, since the DC supply effectively short circuits the transmitted and returned digital communications signals. 2. The minimum DC Voltage V1 required for satisfactory 20mA loop operation can be calculated from the formula – V1 > 2.
IP258 45 D.5.0. Hand Held Communicator : Operation Language Initially the Psion Organiser will power up and display the Psion Copyright message, when the ON button is pressed.
IP258 46 D.6.0 How to drive a Psion based SMART Communicator Familiarity with the Psion The Psion is supplied with several manuals to described its function. The main keyboard functions that are important are the yellow keys. Press “ON” and see the functions of the arrows to move the cursor around the selections in the menu.
IP258 47 When an MSM400 Control unit is located on the loop, this is identified and further instructions awaited. MSM400 FOUND TAG TANK 1 ACCESS (Y)es or (N)o Alternatively an Unknown Instrument may have been found, i.e. a HART instrument that is not a MSM400 or MSP100 or ML T100.
IP258 48 Future work on this data can be carried out whilst the SMART communicator is connected to the loop, in which case all changes will be immediately sent to the MSM400, or after disconnection of the Communicator , in which case the amended programme will have to be stored in the “OFFLINE” register of the communicator .
IP258 49 D7.1 Monitor/Display Parameters – D** Access and programme structure The Display Parameters (D***) are separated into several blocks according to the type of operator read only information. See menu structure in the main body of the manual.
IP258 50 WORKING REGISTER Holds the same value as is currently in the control unit. SAFE REGISTER Use as a backup, can only be sent to the same control unit as it was loaded from. OFF-LINE REGISTER General purpose register , use to program a control unit offline or transfer data between transmitters of the same type.
IP258 51 HAND HELD COMMUNICA TOR REGISTERS D9.0 SAFE, WORKING, OFFLINE, DEF AUL T , Registers Introduction to Registers From the FUNCTION screen, whilst interrogating an MSM400 control unit, there is a selection titled “BACKUP”. This allows the data now stored in the WORKING register (i.
IP258 52 An obvious precaution in the above procedure after loading the WORKING register with the current MSM400 control unit data, is to transfer this data to the SAFE register in case the OFF-LINE s.
IP258 53 D.9.1 Printout or PC transfer of MSM400 programme data When used “Off-Line” the Hand Held Communicator can be instructed to transfer the programme memory into a PC or print a list of the parameters and the values in the working register on a paper printer .
IP258 54 Control unit Status Messages Further operational alarm/error messages are shown on the LCD when any display parameter is selected. When either Readings or Diagnostic parameters (D200 - D265) are shown, the SMART Communicator is interrogating the MSM400 control unit every 0.
IP258 55 “P ASSWORD NOT OPEN” - If the Password in the MSM400 control unit memory is set “CLOSED”, then it will not be possible to load data from the SAFE or OFFLINE register .
IP258 56 OFF-LINE MEMORY TRANSFERS MSM400 D0 - D8 :.
IP258 57 (pre change) value : this prompts the operator to re-enter the required new value. It is important that the Parameter is re-entered, to ensure that the Working register memory in both the Psion and the MSM400 contain the same data.
IP258 58 D11.2 T rim Current If the procedure shown above suggests that there is a calibration difference between the MSM400 output and other current monitoring equipment on the loop, it will be necessary to use a calibrated meter to establish which unit is in error .
IP258 59 D13.0 SMART Interfaces – Compatibility D13.1 Introduction The MOBREY MSM400 SMART slurry monitoring system unit uses the HART digital communications protocol. This was originally developed by Rosemount Inc. in USA, and uses Bell 202 Frequency Shift Key signalling on top of a 2 wire DC loop supply .
Level Instruction Leaflet IP258 November 2004 The Emerson logo is a trade mark and serv ice mark of Emerson Ele ctric Co. Rosemount is a registe red tr ademark of Rosemoun t Inc.
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