740 Portable Suspended Solids Table of Contents 1 Introduction........................7 1.1 General ......................7 1.2 Display ......................7 1.3 Key Pad ......................7 1.4 Sensors ......................7 1.5 Manual Conventions ..................7 2 Basic Operation......................9 2.1 Switching On and Off ..................9 2.2 Measure Mode ....................9 2.3 Measurement Cycle ..................9 2.4 Display ......................9...
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740 Portable Suspended Solids 7.1 Profile Name ....................19 7.2 Profile User ....................19 7.3 Profile Date ....................19 7.4 Measurement Title ..................20 7.4.1User Defined Title ..................20 7.5 Display Units ....................20 7.5.1User Defined Units ..................20 7.5.2 Linked Units ....................21 7.6 Set Damping Range ..................21 8 Profile Advanced Config.....................22...
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740 Portable Suspended Solids 10.3 Preparing for Calibration ................26 10.4 Calibration Wizard ..................26 10.4.1 Cal Wizard Keys ..................27 10.4.2 Cal Wizard Stages ..................27 10.5 Set Zero .......................27 10.6 Set Span ......................28 10.6.1 Step 1. Calibration Value Entry ..............28 10.6.2 Step 2. Calibrating ..................28 10.7 Take Sample ....................29...
Introduction General The 740 Monitor is used for processing and displaying the output signal from a Partech sensor. It combines a clear display of the measured parameter, a simple user interface, with good flexibility to enable configuration to satisfy the users needs.
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740 Portable Suspended Solids S U S P E N D E D S O L I D S 1 5 0 0 m g / l ON/OFF Key Charge LED CHARGE Charger Sensor Socket Connection Figure 1 740 Monitor...
Basic Operation Switching On and Off The 740 Monitor can be turned on and off using the ON/OFF key. When the monitor is turned on it displays a start-up screen prior to entering Measure Mode. The instrument can be switched off at any time by pressing the ON/OFF key.
740 Portable Suspended Solids Profiles The 740 Monitor allows the user to define up to 10 Profiles, each profile will be based on a preset configuration which can be modified to suit the actual measurement required. Page 10 of 46...
Figure 3 Menu Display Data Entry To provide the user with a simple interface, the 740 uses three methods of data entry for the setting of all the user configurable parameters. The various methods of user data entry used on the 740 are described below: 3.2.1...
740 Portable Suspended Solids B L E E P E R Figure 4 List selection Display – note tick indicating current value 3.2.2 User Value Entry When a numerical value is to be set, the current value will be displayed with a flashing cursor.
740 Portable Suspended Solids 3.2.3 User Text Entry Using this method of data entry, the user is able to enter or edit text and is used for the user defined measurement title and units. The text string is displayed with a flashing cursor indicating the selected character.
Example Profile Configuration Mr Bill Smith has a 740 Monitor which he uses at Charlestown Waste Water Treatment Works to measure the mixed liquor suspended solids and the final effluent. The monitor has been set up with two profiles (the remaining profiles are unused) as...
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740 Portable Suspended Solids Profile 2 - Final Effluent Suspended Solids Parameter Value Comment Profile Name Charlestown F.E. Can't fit "Final Effluent" Profile User Bill Smith Profile Date 25/12/2001 Date profile created Measurement Title Suspended Solids Display Units mg/l Display Range...
740 Portable Suspended Solids Select Profile To choose which profile to use, the Select Profile option is selected on the main menu. The ten profiles are listed, if a profile has been setup the profile name is displayed otherwise the profile is indicated as empty.
740 Portable Suspended Solids New Profile Wizard 7 4 0 P R O F I L E W I Z A R D 7 4 0 P R O F I L E W I Z A R D U s e t h e 7 4 0 p r o f i l e w i z a r d...
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740 Portable Suspended Solids Select Preset Profile Name (up to 21 characters) Profile User (up to 21 characters) Profile Date (dd/mm/yyyy) Measurement Title* Display Units* Display Range* Damping* On successful completion of the new profile wizard, the calibration of the profile should be checked, it may be necessary to calibrate the profile.
740 Portable Suspended Solids Profile Config Profile Name This menu is used to set/edit the profile name. The profile name should be set to describe the measurement that the profile has been set up for. For example "Charlestown STW MLSS".
740 Portable Suspended Solids Measurement Title This menu is used to select the measurement title displayed in measure mode. The user can select from a list of predefined titles or enter a custom title. To select a measurement title, use the keys to highlight the required title and press the OK ...
740 Portable Suspended Solids 7.5.2 Linked Units The m/g and g/l units are linked such that changing from one to the other will cause a change in the display range such that the display value is appropriate for the units selected.
The X values represent the input values to the table and the Y values are used to determine the linear output values. For further information on the use of lookup table linearisation please contact Partech. Adjust Y Values See Adjust X values above.
Language This facility is used to select the operating language of the instrument and is configured using the list select method of data entry. The 740 Monitor is supplied with a choice of English and one other language. Change Password The user password used when the instrument is locked and unlocked can be adjusted using this menu.
740 Portable Suspended Solids Note: The factory default password is 1000, if the user password has been forgotten please contact Partech technical support. Monitor Adv Config 9.6.1 Factory Cal Values (1 to 5) These values are used to store the factory calibration data of the attached sensor. The only time that these values will need to be accessed is when a replacement sensor is fitted to the monitor.
10.1 Calibration – General Calibration of the 740 Monitor is very important, errors in the calibration process will effect the measurement performance of the instrument. The following section describes the various aspects of calibrating the 740 Monitor and has been written with the understanding that the user has knowledge of the measurement being made.
N E X T Figure 11 Calibration Wizard The 740 Calibration Wizard guides the user through the important process of calibrating the instrument. Once the setup wizard has been completed, the instrument should respond to changes to the sensor signal (for example placing the sensor into the zero solution and then into the calibration solution).
Calibration menu, select Set Zero and press the OK key. Immerse the sensor into the zero solution and press the OK key. The 740 Monitor collects data for the zeroing operation for approximately 5 seconds to ensure that the zero is set accurately.
As indicated by the on display instructions, immerse the sensor into the calibration solution and press the OK key. The 740 Monitor collects data for the spanning operation for approximately 10 seconds to ensure that the span is set accurately.
740 Portable Suspended Solids During this period do not move the sensor, as this could effect the span operation. If the spanning process is successful, the monitor will return to measure mode and the display value should be correct for the calibration solution. If a problem occurs during the spanning operation, an error message will be displayed and the monitor will return to the Calibration menu.
(The display value must be stable – this can be checked when in measure mode) press the OK key. The 740 Monitor collects data for the take sample operation for approximately 10 seconds, during this period do not move the sensor.
Sensor Input This display provides basic diagnostic information about the sensor performance. The information can assist in the resolution of monitoring problems, it is likely that Partech will request information from this display when providing technical support. 172430IM-Iss07.odt 172430IM-Iss07 Issue Date 23/10/2014...
740 Portable Suspended Solids Instrument Security The 740 Monitor can be locked to prevent unauthorised access to the configuration menus by using a password. The user password is a 4 digit number that can be set to any value the user chooses. When supplied new, the user password is set to 1000, we recommend that this is changed when the instrument is installed.
740 Portable Suspended Solids Error Messages When the instrument detects an error condition, an error message will be displayed. All the error messages are described below: 13.1 Measurement 13.1.1 Display Over Range Calculated display value greater than selected display range maximum, either change display range or check calibration is correct.
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740 Portable Suspended Solids the sensor signal in the zero solution. This can be caused by too clear a calibration solution, or a fault with the sensor. Page 34 of 46 172430IM-Iss07 Issue Date 23/10/2014...
14.2 Charger The 740 Monitor can be charged using either the mains or car charger available from Partech. When connected to the monitor, the charging LED gives a visual indication of charging status. Charging LED Colour...
740 Portable Suspended Solids Maintenance In normal operation the instrument requires no routine maintenance other than an occasional clean with a damp cloth. 15.1 Sensor Replacement Should it be necessary to replace the sensor the following procedure should be used: Unscrew the eight screws in the back of the monitor.
740 Portable Suspended Solids Presets Measurements The configuration of each preset measurement is shown below: Name/Type Measurement Units Display Damping Calibration Title Range Rate Value STW Final Effluent Final Effluent mg/l 0 - 200.0 Fast 100.0 0 - 100 mg/l STW NAS M.L.S.S...
740 Portable Suspended Solids User Profile setup Record The form below can be used to record the configuration of a profile 740 Monitor Profile Record Profile Number Profile Name Profile User Profile Date Measurement Title Units Display Range Damping Rate...
• Description of fault • 18.1 Returning Equipment for Repair If equipment needs to be returned to Partech for repair or service the following address should be used: SERVICE DEPARTMENT PARTECH INSTRUMENTS ROCKHILL BUSINESS PARK, HIGHER BUGLE ST AUSTELL, CORNWALL, PL25 3NN UNITED KINGDOM Please include the following information with the returned equipment.
740 Portable Suspended Solids Preparation of Fullers Earth The Fuller's Earth is supplied in a sealed 20g package, the package contains sufficient to make a 20,000 mg/l (20 g/l) solution when combined with 1 litre of water. Alternate solutions can be obtained by increasing the amount of water used as shown in the table below.
740 Portable Suspended Solids Preparation of Formazin Turbidity Standard 21.1 Health & Safety Precautions The chemicals used when following this procedure are harmful, therefore the correct safety precautions must be carried out. During handling, avoid inhalation and contact with the eyes or skin. Wash hands thoroughly after use. Refer to the data sheets for further details of the chemicals used.
740 Portable Suspended Solids 21.4 Calibration When Formazin solutions are used for calibration/testing of sensors, sufficient solution is required such that the sensor is completely immersed. When using light scatter sensors it is important that the sensor is positioned away from the sides and bottom of the container to prevent the light being reflected.
740 Portable Suspended Solids Declaration of CE Conformity The manufacturer Partech Instruments Address Rockhill Business Park Higher Bugle St Austell Cornwall PL26 8RA herewith declares that the product Part Number 172030 Product 740 Monitor is in conformity with the standards noted below:...
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