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7

 TECHNICAL DATA 

78 

OPTISYS SLM 2100

www.krohne.com

01/2017 - 4002737304 - MA OPTISYS SLM 2100 R04 en

7.2  Technical data

INFORMATION!

•

The following data is provided for general applications. If you require data that is more 
relevant to your specific application, please contact us or your local sales office.

•

Additional information (certificates, special tools, software,...) and complete product 
documentation can be downloaded free of charge from the website (Downloadcenter).

Measuring system

Measuring principle

Level measurement via immersion of optical sensor with straight 

light transmission of NIR-light for suspended solids measurement.

Application range

Level measurement of sludge blanket, fluff zone and zone tracking in 

clarifiers, sedimentation basins as well as in thickeners of water and 

wastewater treatment plants.

Design

Measuring range

0.1...30 g/l (depending on the sludge type)

Units

Concentration in mg/l or g/l

Height / depth

m, cm, feet, inch

Lowering speed sensor

Maximal 7.75 cm / 3.05" per second at 50 Hz

Full cycle time for 10 m / 32.8 ft: 3 min

Internal heating

"Off" above 8

°

C / 46.4

°

F, full power below 4

°

C /  39.2

°

F.

Water connection of the cleaning 

unit (optional)

3/4" connector with metric thread (max. pressure 6 bar / 87 psi)

Display and user interface

Graphic display

LCD display, backlit 128 x 64 pixels, temperature below -25

°

C / -13

°

F 

may affect the readability of the display

Operating elements

4 push buttons for operator control of the signal converter without 

opening the housing

Operating menu

The operation menu consists of the measuring mode and the menu 

mode

Measuring mode

2 pages - measuring page with measuring results and status page 

with status messages

Menu mode

Variety of main and submenus that allows customising the device

Operating and display languages

English, German, French and Spanish

Summary of Contents for OPTISYS SLM 2100

Page 1: ...vel meter Electronic Revision 1 0 1 OPTISYS SLM 2100 OPTISYS SLM 2100 OPTISYS SLM 2100 OPTISYS SLM 2100 Handbook Handbook Handbook Handbook KROHNE 01 2017 4002737304 MA OPTISYS SLM 2100 R04 en Original handbook ...

Page 2: ... any part thereof without the prior written authorisation of KROHNE Messtechnik GmbH Subject to change without notice 2 www krohne com 01 2017 4002737304 MA OPTISYS SLM 2100 R04 en Copyright 2017 by KROHNE Messtechnik GmbH Ludwig Krohne Str 5 47058 Duisburg Germany IMPRINT ...

Page 3: ... point 16 3 4 Installation order 17 3 4 1 Mounting of the sludge level meter 18 3 5 Installing the cleaning unit optional 24 3 5 1 Installation of the water hose to cleaning unit 25 4 Electrical connections 27 4 1 Safety instructions 27 4 2 Used abbreviations 27 4 3 Description of electrical symbols 28 4 4 Important device specific notes on electrical connection 29 4 5 Overview of cable connection...

Page 4: ...on of settings in zone tracking mode 63 5 7 8 Rake guard trigger input 64 5 7 9 Timer start signal 64 5 7 10 Maintenance switch 64 5 7 11 Calibration 65 5 7 12 Reference point calibration 68 5 7 13 Passwords 68 5 7 14 Timeout function 68 5 8 Status messages and diagnostic information 69 5 8 1 Error category Device failure bold F 70 5 8 2 Error category Application error F not bold 71 5 8 3 Error c...

Page 5: ...CONTENTS 5 www krohne com 01 2017 4002737304 MA OPTISYS SLM 2100 R04 en OPTISYS SLM 2100 8 Notes 85 ...

Page 6: ...wnwards compatible hardware and or software change of interfaces H HART P PROFIBUS F Foundation Fieldbus M Modbus X all interfaces 3 _ Downwards compatible hardware and or software change of inputs and outputs I Current output F P Frequency pulse output S Status output C Control input CI Current input X all inputs and outputs 4 Downwards compatible changes with new functions 5 Incompatible changes...

Page 7: ...TISYS SLM 2100 shall not be used in hazardous areas which e g require Ex approvals It could ignite gases Additionally due to the sensors material the meter shall not be used in applications with a high concentration of salt e g seawater The device has been constructed for indoor and outdoor use below the maximum altitude of 2000 m 6562 ft By observing the operation instructions national standards ...

Page 8: ...on over the Internet e g when communicating by e mail may involve gaps in security It is not possible to protect such data completely against access by third parties We hereby expressly prohibit the use of the contact data published as part of our duty to publish an imprint for the purpose of sending us any advertising or informational materials that we have not expressly requested 1 4 2 Disclaime...

Page 9: ...tion To prevent any injury to the user or damage to the device it is essential that you read the information in this document and observe applicable national standards safety requirements and accident prevention regulations If this document is not in your native language and if you have any problems understanding the text we advise you to contact your local office for assistance The manufacturer c...

Page 10: ...se warnings must be observed without fail Even partial disregard of this warning can lead to serious health problems and even death There is also the risk of seriously damaging the device or parts of the operator s plant WARNING Disregarding this safety warning even if only in part poses the risk of serious health problems There is also the risk of damaging the device or parts of the operator s pl...

Page 11: ...ndling Report damage to the carrier and to the local office of the manufacturer INFORMATION Do a check of the packing list to make sure that you have all the elements given in the order INFORMATION Look at the device nameplate to ensure that the device is delivered according to your order Check for the correct supply voltage printed on the nameplate Figure 2 1 Scope of delivery 1 Sludge level mete...

Page 12: ...the current outputs and control inputs Fan assembly The position of the fan is on the top right side of the enclosure In combination with the heater the instrument maintains suitable temperature conditions inside the enclosure of the meter Figure 2 2 Device description of OPTISYS SLM 2100 1 Fan 2 Electronic compartment door with display 3 Cable drum compartment door 4 Guide roller and zero point r...

Page 13: ...ing the measuring process A stable height measurement is reached by zero point reference switch The inductive proximity switch reacts on the metal sleeve on the sensor cable and calibrates the home position Each time when leaving the menu the device performs a zero point calibration In addition a regular calibration during the process can be performed time based via the setup Sensor The sensor use...

Page 14: ... from the clear water phase The latter can be performed by an external pump which is controlled by the OPTISYS SLM 2100 2 3 Nameplate INFORMATION Look at the device nameplate to ensure that the device is delivered according to your order Check for the correct supply voltage printed on the nameplate Figure 2 3 Example of a nameplate 1 Manufacturer 2 CE marking 3 Manufacturing year Electronic revisi...

Page 15: ...ough handling Report damage to the carrier and to the local office of the manufacturer INFORMATION Do a check of the packing list to make sure that you have all the elements given in the order INFORMATION Look at the device nameplate to ensure that the device is delivered according to your order Check for the correct supply voltage printed on the nameplate INFORMATION The display should be mounted...

Page 16: ...04 en 3 3 Typical measuring point Figure 3 1 Example of typical measuring points 1 OPTISYS SLM 2100 with brackets for round handrail on horizontal post 2 OPTISYS SLM 2100 with brackets for rectangular handrail not included of scope of delivery 3 OPTISYS SLM 2100 mounted on a wall 4 Handrail ...

Page 17: ...dge level meter for detailed information refer to Calibration on page 65 DANGER Do not install the sludge level meter in hazardous areas it can ignite explosive gases DANGER Do not cover or obstruct the ventilation It can lead to overheating of the device INFORMATION The device must not be heated by radiated heat e g exposure to the sun to a electronics housing surface temperature above the maximu...

Page 18: ...le mounting possibilities Available mounting possibilities INFORMATION To ensure proper assembly please use only the mounting material provided with the meter INFORMATION All bolts nuts and washers should be greased to prevent cold welding and ensure simple disassemble after use INFORMATION Please ask a second person to help with this procedure INFORMATION Ensure that the handrail is suitable for ...

Page 19: ...ludge meter can be mounted directly on the wall The sludge level meter has 4 M6 threads on the back and on the bottom of the instrument If the threads on the bottom are used ensure that there is enough space for sensor cable feedthroughs and the cleaning unit For further information refer to Dimensions on page 81 Mount the meter using the 4 M6 screws Figure 3 2 Mounting on wall 1 4 x M6 screws 2 W...

Page 20: ... frame with brackets with round handrail vertical or horizontal Mounting frame with brackets with round handrail vertical or horizontal This option allows installing the sludge level meter on many round handrails The rod steel U bolts cover handrails between diameters of 33 60 3 mm 1 3 2 37 inch Two round rod steel U bolts fixate the mounting frame on the upper handrail A further rod steel U bolt ...

Page 21: ... Find suitable and stable positions of the lower crossbars Fix crossbars with screws M8 x 20 nuts and washers 1 On both crossbars mount the adaption plate 3 Mount the rod steel U bolt M10 2 to the horizontal pole with washers Use the slot holes to adjust the respective height Adjust the position of all brackets Tighten all screws Position the meter on the frame and tighten it with M6 screws Figure...

Page 22: ...on lower round handrail with vertical bar Find suitable and stable positions of the lower crossbars Fix crossbars with screws and nuts 1 On one crossbar mount the adaption plate 3 Mount the rod steel U bolt 2 to the vertical pole Adjust the position of all brackets Tighten all screws Position the meter on the frame and tighten it with M6 screws Figure 3 5 Mounting of lower handrail vertical 1 Scre...

Page 23: ...ing the meter Fix the meter to the upper part of the mounting frame using screws M6 x 16 and washers according to the drawing above Please make sure that the meter is mounted in such a height that display and keyboard are at eye level Remove the sensor transportation protection to prevent blocking of the sensor Figure 3 6 Mounting device on handrail ...

Page 24: ...device by the manufacturer with exception of the spray shield and the water connection If installing a device containing a cleaning unit keep a safety area around the sensor garage free from electrical device or water sensitive parts as outlined in the following drawing The cleaning unit can be supplied with water by 2 options External water supply by hose with drinking or process water Water supp...

Page 25: ... housing may be twisted which may cause water leakage When installing the device make sure the water hose is adequately fixed as outlined Mount the water hose in such a way that the weight of it is not carried by the hose adapter When fixing the hose also take into account that it must be avoided that it moves when the system is switched on off WARNING The maximum allowed water pressure should not...

Page 26: ...prayshield Mounting sprayshield Mounting sprayshield The sprayshield has to be mounted by the operator using 4 M6 screws to the cleaning unit as described in this drawing Figure 3 9 Mounting sprayshield 1 Push the sprayshield above the cleaning unit Please be aware that the holes are align to each other 2 Insert the 4 M6 screws ...

Page 27: ...nly be carried out by properly trained specialists WARNING Before performing any work on the device switch off the power and make sure that it cannot be switched on accidently INFORMATION Look at the device nameplate to ensure that the device is delivered according to your order Check for the correct supply voltage printed on the nameplate Abbreviation Description CIa Control input active Ia Curre...

Page 28: ...n Ampere meter 0 20 mA or 4 20 mA RL is the internal resistance of the measuring point including the cable resistance Internal direct current DC voltage source Controlled internal current source in the device Switch NO contact or similar Input galvanically insulated Positive temperature coefficient PTC resistance LED Protection switch Grounding Motor Heater Fan ...

Page 29: ... kV It is recommended to use shielded signal cables which are only connected on one side e g to the protective earth on the mainboard next to the relays If relays are used note that with inductive loads the interference must be suppressed spark quenching Assure that all electrical connection works are compliant with the VDE 0100 directive Regulations for electrical power installations with line vo...

Page 30: ...ice note the safety regulations of the current state of the art Also note the following items to avoid fatal injuries destruction or damage of the device or measuring errors Do not run cables on pathways Regularly check the cable runs for loose cables hanging into footpaths Before connecting main power all connectors at the connecting terminal need to be plugged Please pay attention to the front d...

Page 31: ...information refer to Connecting the power supply on page 32 2 Motor heater and fan connection block connected at factory 3 Cleaning connection block connected at factory 4 Relay connection block for further information refer to Description and properties of the relays on page 40 5 External connection block connected at factory 6 Output connection block for further information refer to Current outp...

Page 32: ...llation works Ground the device cross section of the wire is 6 mm2 10 AWG The device must be led over a ground fault circuit interrupter GFCI 0 03 A which has to be tested every 6 months Inspect the continuous PE conductor connection to all contactable metal parts by carrying out a standardised procedure The maximum allowed resistance is 0 5 Ohm Assure that there is a fuse protection for the infee...

Page 33: ...st voltage of min 2 kV and an appropriate outer insulation additional to the insulation of the individual wire The outer insulation should be removed 40 mm 1 57 The minimum cross section of the wires is 1 5 mm2 16 AWG and the maximum is 2 5 mm2 12 AWG INFORMATION In order to assure proper sealing of the cable feedthrough only cables with a diameter between 6 12 mm 0 24 0 47 inch should be used INF...

Page 34: ...rmation refer to Menu C setup on page 53 Output range 4 20 mA Mode of output Active Electrical isolation All outputs are electrically isolated from the power supply Load resistance LR 550 Ω at Imax 22 mA Nominal internal voltage Uint nom 15 VDC Measuring function Level Profile Zone tracking Current output A Height depth of concentration fluff 1 Height depth of the sensor position 1 Height depth of...

Page 35: ... is not part of the scope of delivery The additional part has to be purchased from another manufacturer In case CI 1 2 is set to rake guard switch the sampling will be interrupted and the sensor hauled back as soon as the external contact is closed External trigger External trigger External trigger External trigger The function of the external trigger is to trigger the sampling process For this pu...

Page 36: ...d and the sensor is hauled back to the home position as soon as the external contact is closed After that the current outputs are frozen and the sensor can be moved by the simple push of the arrow buttons on the keypad 4 9 Connection of output and input 4 9 1 Important notes DANGER Never install or operate the device in potentially explosive areas it might cause an explosion that can result in fat...

Page 37: ...e the following items Observe the connection polarity Note the properties of the current output for further information refer to Technical data on page 78 INFORMATION Assembly materials and tools are not part of the delivery Use the assembly materials and tools in compliance with the applicable occupational health and safety directives Connection diagram of current output active Figure 4 4 Current...

Page 38: ...e The outer insulation should be removed 30 50 mm 1 18 1 97 inch The minimum allowed cross section of the wires is 0 5 mm2 20 AWG and the maximum is 1 5 mm2 16 AWG INFORMATION In order to assure proper sealing of the cable feedthrough only cables with a diameter between 6 12 mm 0 24 0 47 inch should be used DANGER All work on the electrical connections may only be carried out with the power discon...

Page 39: ...for more information refer to Overview of cable connections on page 30 Connect the positive and negative lead according to the connection diagrams above Connect the shield to one side only e g on PCS process control system side Tighten the screw connection of the cable feedthrough securely Seal all cable feedthroughs that are not needed with a plug Close both compartment doors Figure 4 6 Control i...

Page 40: ...ay which means the relay is switched either when the sensor position about limit value or the sensor position below limit The hysteresis defines the sensor position where the limit switch relay is reset relatively to the selected threshold Combining the parameters threshold and hysteresis a range can be defined where the limit switch is active The relay configuration menus can be found in the setu...

Page 41: ...and tools are not part of the delivery Use the assembly materials and tools in compliance with the applicable occupational health and safety directives INFORMATION The correct connection of the relays may only be ensured by using signal cables which are approved for the rated current and voltage INFORMATION All cables must have a test voltage of min 2 kV and an appropriate outer insulation additio...

Page 42: ...tment doors Push the prepared cables through the cable feed through and route them to the electronic compartment Connect the positive and negative lead according to the connection diagrams above Connect the shield to one side only e g on PCS process control system side Tighten the screw connection of the cable entries securely Seal all cable entries that are not needed with a plug Close both compa...

Page 43: ...nly be installed commissioned operated and maintained by properly trained and authorised personnel WARNING To avoid damages to the equipment please make sure that power up of the meter takes place above 0 C 32 F Once power is connected the internal heater will than keep the electronics from freezing WARNING The device starts up restarts automatically as soon the power is switched on INFORMATION If...

Page 44: ... device assure a correct installation before switching on the power This includes The device is mechanically safe mounting and power connection comply with the regulations Both doors need to be closed and locked The electrical operating data of the power supply comply with the requirements of the device CAUTION Installation assembly start up and maintenance may only be performed by appropriately t...

Page 45: ...ess to displayed menu then 1st submenu is displayed Access to displayed sub menu or function Numerical values move cursor one position to the right Reset of the display controller Return to measuring mode prompt appears whether the data should be saved Return to next higher level or sublevel data are saved Return to sub menu or function data are saved or Switch between measuring pages Select menu ...

Page 46: ... The following drawing shows an example of the measuring page in the measuring mode Level Pressing will bring you to the status page If profile mode is applied a second measuring page can be chosen presenting the profile of the measurement as bar plot INFORMATION Always push the keys at right angles to the front Touching them from the side can cause incorrect operation After 5 minutes of inactivit...

Page 47: ...er a main menu Press to return to the measuring mode in this case a prompt appears and asks if you want to save the changed data choose Yes or No using or and confirm by pressing If you do not want to leave the main menu level press to enter the first main menu quick setup or choose another main menu using or and enter it by pressing i You are in the submenu level The display always looks as follo...

Page 48: ...s in moving one level upwards until you reach the main menu level Display in submenu level Figure 5 4 Example for selection in submenu level 1 Indicates a possible status message in the status list only if there are one or more messages 2 Superior main menu 3 Menu code of selected menu item see table of menu structure or function tables up to two figures can appear right beside the character indic...

Page 49: ...e the parameter or data level some submenus also offer the possibility to make adjustments The procedure is similar to the procedure on the parameter level INFORMATION In this list all parameters or data which have been changed i e they deviate from the default setting have a check mark at the right end of their line see position number 4 in the following drawing Display with list of parameters or...

Page 50: ...ne or more messages 2 Superior submenu or subsequent submenu 3 Menu code of selected parameter see table of menu structure or function tables 4 Symbol denotes that there is a factory setting 5 Symbol denotes that there is a permissible value range 6 Permissible value range for numerical values 7 Currently set value unit or function that you can change always appears with highlighted background 8 C...

Page 51: ...perature B2 5 sensor voltage supply B3 logbooks B3 1 status log B4 information B4 1 device serial no B4 2 mainboard B4 3 sensor electronic B4 4 display 3 or 4 pages scrolling with or 2 5 s C setup C setup C setup C setup C1 measuring C1 1 measuring function C1 2 measuring mode C1 3 definition fluff C1 4 def sludge blanket C1 5 hysteresis C1 6 tracking time C1 7 tracking position C1 8 start signal ...

Page 52: ...2 actual values Language selection depends on the region for which the device has been ordered Available languages Deutsch English Français Español Manual setting of date and time This functions allows to reset all errors that are not reset automatically e g motor blocked You can answer the question reset with the following options no exit without reset yes reset and exit the function This menu sh...

Page 53: ...his menu gives information about the sensor electronic First line ID no of the sensor Second line software version Third line production date B4 4 display This menu gives information about the display First line ID no of the sensor Second line software version Third line production date Menu level Designation function Settings descriptions This menu groups several other menus in which the measurin...

Page 54: ...ch cm C1 10 2 temperature This function allows to define the temperature unit Options C F K C1 10 3 concentration This function allows to define the concentration unit Options g l mg l Menu level Designation function Settings descriptions This menu groups several other menus in which the maintenance functions can be set C2 1 calibration In this menu the concentration measurement can be calibrated ...

Page 55: ... is displayed only if profile or zonetracking is selected in C1 1 Range 0 100 g l Default 10 g l C3 2 6 error current Definition of the current which indicates the error condition Range 3 22 mA condition outside of extended range Default 21 5 mA C3 2 7 error condition This function allows to define the indicated error categories Options error in device only errors of category F F F F application e...

Page 56: ...on allows to specify a hysteresis value of the sludge level this menu is displayed only if limit switch is selected in C3 6 1 Default 0 meter C3 6 5 direction This function can define if the limit switch is set as above or below the threshold value this menu is displayed only if limit switch is selected in C3 6 1 C3 7 relay 2 Settings of the corresponding relay all submenus and options are identic...

Page 57: ...nly if time interval or counter interval is selected in C4 6 1 Range 0 100 Default 0 C4 6 6 External pump This menu defines if the external pump is controlled by the relays K3 this menu is displayed only if time interval or counter interval is selected in C4 6 1 Options yes or no Menu level Designation function Settings descriptions This menu groups all functions that have no effect on the measure...

Page 58: ... immediately not just when the menu mode is left You cannot reset a change when leaving the programming mode without saving the changes Range 9 9 Default 0 C5 3 special functions This menu groups several special functions C5 3 1 reset errors Refer to A3 reset C5 3 2 password quick set This function allows to define and activate a password for the access to the quick setup menu Options XXXX if you ...

Page 59: ... home position The sensor will stop at this depth if it detects no sludge Note the sensor might stop and return at a shorter distance if a rake height is set 5 Measuring zone Measuring zone Measuring zone Measuring zone in this zone the sensor delivers its measuring results and the output signal varies from 4 20 mA Note In case that no start position is set the measuring zone equals the maximum de...

Page 60: ...ode Change the measuring function to manual operation and lower the sensor by using the arrow keys Second step Find out the distances Lower the sensor head 0 3 m 1 ft below the liquid surface and note the level as the blind zone Lower the sensor further until it reaches the bottom of the tank You can identify this point by watching the cable got slack Pull up the sensor until you have about 5 cm 2...

Page 61: ...racking time elapses the sensor will be moved down and the sludge level searching will be repeated When the sludge level has been found the sensor is moved back to the parking position again When the sludge level is increasing and is reaching the sensor its position will be moved up until the sludge concentration drops below the user defined limit Starting from this position the sludge level will ...

Page 62: ...tion Level Profile Zone tracking Current output A Height depth of concentration fluff 1 Height depth of the sensor position 1 Height depth of the sensor position 1 Current output B Height depth of concentration sludge blanket 1 Measuredconcentration 2 Measuredconcentration 2 1 Range is calculated automatically according to the parameters filled in the extended setup range of analog output is shown...

Page 63: ...When a concentration increase above 8 g l is detected while the sensor is in parking position it will be moved up for position correction and for tracking the sludge level again Tracking time Tracking time Tracking time Tracking time Definition of the time period the sensor is remaining in parking position when the time elapsed the sludge level will be tracked again For further information refer t...

Page 64: ...input 1 2 and C1 8 start signal For further information refer to Function tables on page 52 For information con cerning the electrical connection of a limit switch refer to Electrical connection of control in puts on page 38 5 7 9 Timer start signal If there is no danger for the sensor or cable to be caught by moving devices i e installation in thickeners without rakes the time based trigger mode ...

Page 65: ... user needs the actual reading right away please press arrow down to trigger a manual measuring cycle Press for more than 2 5 seconds then release the button Press or until the main menu setup setup setup setup is highlighted Press to enter the chosen menu Press or to select maintenance maintenance maintenance maintenance Press to enter the chosen menu Press or to select calibration calibration ca...

Page 66: ...alibrate conc is highlighted Press to enter the chosen menu reference value reference value reference value reference value is shown Press or to enter the reference value between 0 100 g l Press to confirm the value ADC value ADC value ADC value ADC value is shown Press or to choose between stored value stored value stored value stored value to use the stored value or actual value actual value act...

Page 67: ...b once the lab result is determined return to the meter and enter the reference value in order to calibrate the meter Press or until the submenu calibrate conc calibrate conc calibrate conc calibrate conc is highlighted Press to enter the chosen menu reference value reference value reference value reference value is shown Press or to enter the reference value Press to confirm the value ADC value A...

Page 68: ...se and the setup and test menus against misuse This is done by activating a password for the menus setup and quick setup 5 7 14 Timeout function Menu mode If the user does not press any key in a 5 minutes time frame and the device is not in the test mode it automatically returns to the measuring mode i e the display shows one or more measuring results INFORMATION When zone tracking is the selected...

Page 69: ...ages in the following subsections The device groups all error messages and maps them according to their category and importance the following subsections and their tables represent the categories and the order of importance You find a short description of the error category in the table below On the display you recognize the error category with the help of the character in front of the message e g...

Page 70: ...d or fixed Maintenance required I Information current measurement is okay and values unrestrictedly valid Depends on error message see table in relevant section INFORMATION Regard that in case of an error message of the category F F F F the measured values are not valid Messages on the display Description Actions F F F F motor blocked The motor has been blocked three times consecutively Check if s...

Page 71: ...ry I Motor up Motor reels up I Motor down Motor reels down I Heater active Internal heater is switched on I Fan active Fan is switched on I Concentration not found The sensor did not detect the concentration set by the user during this measuring cycle I Cable cleaning active Cleaning unit is switched on I Sensor cleaning active Cleaning unit is switched on I Rake guard Rake guard switch is active ...

Page 72: ...loth or a soft brush DANGER All work on the electrical connections may only be carried out with the power disconnected Take note of the voltage data on the nameplate DANGER Shut down the instrument by use of the external main switch if opening the compartment doors or maintenance of moving parts DANGER The surface in the both compartments becomes hot during operation and can cause burns Wait after...

Page 73: ...eck of cable and drum Check the cable it must not have any damages or wear and has to be spooled correctly on the drum Always replace the cable if it shows any damage or severe wear of the insulation If the cable is not correctly spooled up or shows a large amount of dirt lower the sensor manually to the maximum position at first During back hauling monitor the correct guidance of the cable and th...

Page 74: ... cleaning activation type in the menu first In case of the activation mode is set to timer interval the sensor cleaning is periodically performed when the selected time interval has elapsed By setting the cleaning activation mode to counter interval the sensor cleaning is performed each time the selected number of measurement cycles has been conducted Note that the zone tracking measuring mode is ...

Page 75: ... instructions it will rarely present any problems INFORMATION For more precise information please contact your local sales office CAUTION Should you nevertheless need to return a device for inspection or repair please pay strict attention to the following points Due to statutory regulations on environmental protection and safeguarding the health and safety of the personnel the manufacturer may onl...

Page 76: ...evice when it is returned Date Signature Stamp CAUTION Disposal must be carried out in accordance with legislation applicable in your country Separate collection of WEEE Waste Electrical and Electronic Equipment in the European Union Separate collection of WEEE Waste Electrical and Electronic Equipment in the European Union Separate collection of WEEE Waste Electrical and Electronic Equipment in t...

Page 77: ...suspended solids concentration at different heights The measurement of the suspended solids content is based on the method of the transmission of light which provides precise measurement results independent of the sludge colour The direct measuring principle excludes incorrect measurements due to echo returns from walls or separating zones as well as signal damping by fluff or floating sludge Figu...

Page 78: ... treatment plants Design Measuring range 0 1 30 g l depending on the sludge type Units Concentration in mg l or g l Height depth m cm feet inch Lowering speed sensor Maximal 7 75 cm 3 05 per second at 50 Hz Full cycle time for 10 m 32 8 ft 3 min Internal heating Off above 8 C 46 4 F full power below 4 C 39 2 F Water connection of the cleaning unit optional 3 4 connector with metric thread max pres...

Page 79: ...ory IP 68 sensor IP 54 electronic compartment and IP 44 cable drum compartment Installation conditions Installation position Fixing on a handrail at open channels basins or tanks Dimensions weights For detailed information refer to Dimensions on page 81 Materials Enclosures Stainless steel 1 4301 Sensor Enclosures Stainless steel 1 4404 Optical windows Sapphire Cable gland Stainless steel 1 4404 O...

Page 80: ...uts Two outputs 4 20 mA galvanic isolated from power supply active mode Output data Current output A level of fluff Current output B level of sludge blanket or concentration profile Operating data Umax 18 VDC I 4 20 mA Imax 22 mA RL 550 Ω Relays Operating modes Relay 1 and 2 Limit switch or status output Relay 3 Pump protection Operating data for all relays Uext 24 VDC 250 VAC K1 K2 1 A K3 0 3 A A...

Page 81: ...ww krohne com 01 2017 4002737304 MA OPTISYS SLM 2100 R04 en 7 3 Dimensions Figure 7 2 Dimensions Dimensions mm Dimensions a 460 18 11 b 420 16 54 c 195 7 7 d 512 20 16 e 88 5 3 48 f 260 10 24 g 550 21 65 h Ø 85 3 35 j Ø 40 1 57 k 231 5 9 11 ...

Page 82: ... TECHNICAL DATA 82 OPTISYS SLM 2100 www krohne com 01 2017 4002737304 MA OPTISYS SLM 2100 R04 en Figure 7 3 Dimensions hole distance device Dimensions mm Dimensions a 380 15 b 470 18 5 c 380 15 d 103 4 1 ...

Page 83: ... 2017 4002737304 MA OPTISYS SLM 2100 R04 en Figure 7 4 Dimensions of mounting frame and cleaning unit Dimensions mm Dimensions a 109 5 4 31 b 105 4 13 c 175 5 6 91 d 100 5 3 96 e 188 5 7 42 f 376 5 14 82 g 161 6 34 h 152 2 5 9 j 135 5 31 k 127 2 5 e f g h ...

Page 84: ...s Weights Weights Figure 7 5 Hole distance of the mounting Dimensions mm Dimensions a 607 23 9 b 356 14 0 c 314 12 4 d 71 2 8 e 35 5 1 4 f 50 1 9 g 276 10 8 weight kg weight lbs OPTISYS SLM 2100 26 5 58 4 Cleaning unit 4 5 9 9 Mounting frame 3 3 7 3 Rod steel U bolts and adaption for round handrails 1 2 2 6 e f g ...

Page 85: ...NOTES 8 85 OPTISYS SLM 2100 www krohne com 01 2017 4002737304 MA OPTISYS SLM 2100 R04 en ...

Page 86: ...8 NOTES 86 OPTISYS SLM 2100 www krohne com 01 2017 4002737304 MA OPTISYS SLM 2100 R04 en ...

Page 87: ...NOTES 8 87 OPTISYS SLM 2100 www krohne com 01 2017 4002737304 MA OPTISYS SLM 2100 R04 en ...

Page 88: ...rvices Head Office KROHNE Messtechnik GmbH Ludwig Krohne Str 5 47058 Duisburg Germany Tel 49 203 301 0 Fax 49 203 301 10389 info krohne com KROHNE 01 2017 4002737304 MA OPTISYS SLM 2100 R04 en Subject to change without notice The current list of all KROHNE contacts and addresses can be found at www krohne com ...

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