Modbus rs485 transmitter with ultrasonic time-of-flight sensor (40 pages)
Summary of Contents for Endress+Hauser Liquisys M CUM223
Page 1
Operating Instructions Liquisys M CUM223/253 Transmitter for Turbidity and Suspended Solids BA200C/07/en/03.08 71070892 valid as of: Software-version 2.40...
Page 2
Here you can find an overview of the spare parts which can be delivered as well as an overview of the system. Æ Technical data Page 11 ff. Dimensions Page 91 ff. Ambient and process conditions, weight, materials etc. Æ Appendix Page 94 ff. Here you can find the operating matrix Endress+Hauser...
Liquisys M CUM223/253 Safety instructions Safety instructions Designated use Liquisys M is a transmitter for determining the turbidity and the solids content of a liquid medium. The transmitter is particularly suited for use in the following areas: • Drinking water treatment •...
Safety instructions Liquisys M CUM223/253 Return If the transmitter has to be repaired, please return it cleaned to the sales center responsible. Please add a detailed failure description. If the failure diagnosis is not clear please send also the cable and the sensor.
Liquisys M CUM223/253 Identification Identification Device designation 2.1.1 Nameplate Compare the order code on the nameplate (on the transmitter) with the product structure (s.b.) and your order. The device version can be identified from the order code. Note! The release codes for retrofitting the software for Chemoclean (left of the slash) or the Plus package (right of the slash) are listed under "Codes".
Identification Liquisys M CUM223/253 2.1.3 Additional functions of the Plus Package • Current output table to cover wide ranges with varying resolution, fields O33x • Process Check System (PCS): live check of the sensor, function group P • Concentration measurement, function group K •...
Liquisys M CUM223/253 Installation Installation Quick installation guide Warning! If the measuring point or parts of the measuring point are in explosion-hazardous areas you have to follow the "Safety instructions for electrical apparatus for explosion-hazardous areas". These instructions (XA194C/07/a3) are part of the scope of delivery.
3.1.1 Measuring system A complete measuring systems comprises: • The transmitter Liquisys M CUM223 or CUM253 • A sensor with or without an integrated temperature sensor • An immersion, flow or retractable assembly Options: extension cable CYK81, junction box VBM or RM...
Liquisys M CUM223/253 Installation Installation conditions 3.3.1 Field instrument Pg 13.5 Pg 7 Pg 16 0.43 REL1 ALARM REL2 REL1 REL2 70 / 2.76 115 / 4.53 154 / 6.06 170 / 6.69 mm / inch a0005733 Fig. 4: Field instrument Note! There is a hole in the punching for the cable entry (connection of supply voltage).
Installation Liquisys M CUM223/253 3.3.2 Panel-mounted instrument 0.24 92 / 3.62 90 / 3.54 mm / inch a0005735 Fig. 6: Panel-mounted instrument Installation instructions 3.4.1 Field instrument There are several ways of securing the field housing: • Wall mounting with fixing screws •...
Page 13
Liquisys M CUM223/253 Installation Transmitter post mounting Note! You require a post mounting kit to secure the field device to horizontal and vertical posts or pipes (max. Ø 60 mm (2.36")). The kit can be acquired as an accessory (see "Accessories" section).
Page 14
Installation Liquisys M CUM223/253 You can also secure the field device to a square universal post in conjunction with the weather protection cover. These can be acquired as accessories, see "Accessories" section. a0005738 Fig. 9: Mounting field device with universal posts and weather protection cover For mounting the weather protection cover, proceed as follows: Screw the weather protection cover with 2 screws (bores 1) to the upright post (bores 2).
Liquisys M CUM223/253 Installation 3.4.2 Panel-mounted instrument The panel-mounted instrument is secured with the clamping screws supplied (see Fig. 10). The necessary installation depth is approx. 165 mm (6.50"). +0.5 +0.02 / 3.62 max. 45 / 1.77 approx. 25 / 139 / 5.47...
Wiring Liquisys M CUM223/253 Wiring Electrical connection Warning! • The electrical connection must only be carried out by a certified electrician. • Technical personnel must have read and understood the instructions in this manual and must adhere to them. • Ensure that there is no voltage at the power cable before beginning the connection work.
Liquisys M CUM223/253 Wiring 4.1.1 Electrical connection 10-50 V 23 + 24 - 10-50 V 15 V L– a0003126 Abb. 11: Electrical connection of the transmitter Sensor Relay 1 (current-free contact position) Signal output 1 turbidity/solids content Relay 2 (current-free contact position)
Page 18
Wiring Liquisys M CUM223/253 Field instrument connection To connect the field instrument proceed as follows: Open the front cover to get access to the terminals. Cut the punching for the Pg gland out of the housing. Mount a Pg gland and guide the measuring cable through the Pg gland into the housing.
Liquisys M CUM223/253 Wiring Panel-mounted instrument connection Connect the cables in accordance with the connection diagram. 131083-4C 131084-4C Sensor 31 + REL1 32 - 33 + Temp. (opt.) 34 - 88 - REL2 87 + 85 + +15V 10mA REL3...
Page 20
Wiring Liquisys M CUM223/253 Structure of the measuring cable Sensor CUM 2x3 Com A Com B –U a0003265 Fig. 14: Structure of measuring cable CYK8 and CYK81 (extension cable) Note! For further information on cables and junction boxes refer to the chapter "Accessories".
Liquisys M CUM223/253 Wiring 4.1.3 Alarm contact C07-CxM2x3xx-04-06-00-xx-001.eps Fig. 16: Recommended fail-safe switching for the alarm contact A Normal operating status B Alarm condition Normal operating status: Alarm condition Device in operation and no error message Error message present (alarm LED red) or device...
Operation Liquisys M CUM223/253 Operation Quick operation guide You have the following ways of operating the transmitter: • On site via the key field ® • Via the HART interface (optional, with corresponding order version) per: ® – HART handheld terminal or ®...
Operation Liquisys M CUM223/253 5.2.3 Key assignment CAL key When you press the CAL key, the device first prompts you for the calibration access code: • Code 22 for calibration • Code 0 or any other code for reading the last calibration data Use the CAL key to accept the calibration data or to switch from field to field within the calibration menu.
Page 25
Liquisys M CUM223/253 Operation AUTO key You can use the AUTO key to switch between automatic mode and manual mode. Escape function If you press the PLUS and MINUS key simultaneously, you return to the main menu or are taken to the end of calibration if calibrating. If you press the PLUS and MINUS key again, you return to the measuring mode.
Operation Liquisys M CUM223/253 Local Operation 5.3.1 Automatic/manual mode The transmitter normally operates in automatic mode. Here, the relays are triggered by the transmitter. In the manual mode, you can trigger the relays using the REL key or start the cleaning function.
Liquisys M CUM223/253 Operation 5.3.2 Operating concept Operating modes Measuring mode: standard mode of operation, displaying current measured values Calibration mode: Setup mode access to all execution of configuration calibration routine settings Code The function groups are selected with the PLUS or MINUS key.
Page 28
Operation Liquisys M CUM223/253 Menu structure The configuration and calibration functions are arranged in function groups. • In setup mode, select a function group with the PLUS and MINUS keys. • In the function group itself, switch from function to function with the ENTER key.
Liquisys M CUM223/253 Commissioning Commissioning Function check Warning! • Check all connections for correctness. • Make sure that the supply voltage is identical to the voltage written on the nameplate! Switching on Familiarize yourself with the operation of the transmitter before it is first switched on. Please refer in particular to the "Safety instructions"...
Page 30
Commissioning Liquisys M CUM223/253 Selecting and locating functions is facilitated by a code displayed for each function in a special display field Fig. 21. C131 C132 C133 The structure of this coding is given in Fig. 22. The first column indicates the function group as C121 a letter (see group designations).
Liquisys M CUM223/253 Commissioning Quick start-up After power-up, you must make some settings to configure the most important functions of the transmitter which are required for correct measurement. The following section gives an example of this. User input Setting range...
Page 32
Commissioning Liquisys M CUM223/253 User input Setting range Display (Factory settings, bold) 14. In B1, switch wiper controller on or off. Press ENTER to confirm. auto wiper 15. In B2, enter operation period of wiper. 30 s Press ENTER to confirm.
Page 33
Liquisys M CUM223/253 Commissioning User input Setting range Display (Factory settings, bold) 23. Press MINUS to go to the "Current output" function group 24. Press ENTER to edit "Current output". OUTPUT Out1 25. In O1, select current output. Out1 Press ENTER to confirm.
Commissioning Liquisys M CUM223/253 System configuration 6.4.1 Setup 1 (Turbidity) In the SETUP 1 function group, you can change the operating mode and the sensor settings. Coding Field Selection or range Display Info (factory settings bold) Function group Basic settings.
Page 35
Liquisys M CUM223/253 Commissioning Coding Field Selection of range Display Info (factory settings bold) If “auto”is selected, the wiper is operated in Switch wiper combination with a cleaning function via controller on or off timer/Chemoclean (“wipe and clean”). In this...
Commissioning Liquisys M CUM223/253 6.4.3 Current input To use the "Current input" function group, you need a relay board with current input which is not part of the basic version. With this function group you can monitor process parameters and use these for feedforward control.
Page 37
Liquisys M CUM223/253 Commissioning Feedforward control to PID controller For control systems with very short reaction times, you can optimize the control. Additionally you measure the flow rate of the medium. You apply this flow rate value (0/4 to 20 mA) as feedforward control to the PID controller.
Page 38
Commissioning Liquisys M CUM223/253 The basic version does not include functions in italic. Coding Field Setting range Display Info (Factory settings, bold) CURRENT INPUT Current input settings. function group CUR.INPUT Select flow Flow monitoring may only be switched on if...
Liquisys M CUM223/253 Commissioning 6.4.4 Current outputs Use the "Current output" function group to configure the individual outputs. You can enter either a linear characteristic (O3 (1)) or a user-defined current output characteristic in conjunction with the Plus Package (O3 (3)). Exception: if you have chosen a "continuous controller" for current output 2, you cannot enter a user-defined current output characteristic for this current output.
Page 40
Commissioning Liquisys M CUM223/253 Current output 1 Current output 2 Value pair Tu / °C Current Distance Tu / °C Current Distance [mA] per mA [mA] per mA Basic version does not include functions in italic. Coding Field Setting range...
Page 41
Liquisys M CUM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) 0.000 FNU Here you can enter the turbidity or 0.000 NTU temperature value at which the min. current 0.000 ppm 0/4 mA value: value (0/4 mA) is applied at the transmitter 0.000 mg/l...
Commissioning Liquisys M CUM223/253 Coding Field Setting range Display Info (Factory settings, bold) 0.000 FNU 0.000 NTU 0.000 ppm 0.000 mg/l 0.000 x value = measured value specified by user. O334 O334 Enter x value 0.000 g/l 0.000 kg/l Meas.val.
Page 43
Liquisys M CUM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) Here you can select all the errors which should trigger an alarm. The errors are selected via the error numbers. Select error Please refer to the table in section 9.2 "System 1 ...
Page 44
Commissioning Liquisys M CUM223/253 a0006744 Fig. 27: PCS alarm (live check) Constant measuring signal = alarm triggered after PCS alarm time has elapsed Note! Any PCS alarm pending is automatically deleted as soon as the sensor signal changes. Monitoring functions at a glance...
Page 45
Liquisys M CUM223/253 Commissioning The function group "Check" is used to monitor the lower und upper limits of the measured value and to initiate alarms. Basic version does not include functions in italic. Coding Field Setting range Display Info (Factory settings, bold)
Commissioning Liquisys M CUM223/253 6.4.6 Relay contact configuration To use the RELAY function group, you need a relay board which is not part of the basic version. The following relay contacts can be selected and configured as desired (max. four contacts, depending on options installed): •...
Page 47
Liquisys M CUM223/253 Commissioning P(ID) controller You can define various controller functions for the transmitter. On the basis of the PID controller, P, PI, PD and PID controllers can be implemented. For an optimum control system, use the controller that best suits your application. Depending on the option selected in the R 237/R 266 field, the actuating signal can be output via relays or via current output 2 (if available).
Page 48
Commissioning Liquisys M CUM223/253 Commissioning If you do not yet have any experience for setting the control parameters, set the values that yield the greatest possible stability in the control circuit. Proceed as follows to optimize the control circuit further: •...
Page 49
Liquisys M CUM223/253 Commissioning t [s] t [s] C07-CLM2x3xx-05-06-00-xx-005.eps Fig. 31: Signal of a pulse-length modulated controller contact (left) and of a pulse-frequency modulated controller contact (right) Contact 1 = on, 0 = off Period length Time [s] t Impulse period length (impulse freq. 1/T...
Page 50
Commissioning Liquisys M CUM223/253 Timer for cleaning function This function includes a simple cleaning option. You can set the time interval after which cleaning should start. So you can only select a constant interval sequence. Other cleaning functions are available for selection in conjunction with the Chemoclean function (version with four contacts, see "Chemoclean function"...
Page 51
Liquisys M CUM223/253 Commissioning a0006793 Fig. 34: Sequence of a cleaning cycle Hold Normal mode Water Cleaning start Cleaner Pre-rinse time Contact on Cleaning time Contact off Post rinse time Hold dwell period Basic version does not include functions in italic.
Page 52
Commissioning Liquisys M CUM223/253 Coding Field Setting range Display Info (Factory settings, bold) Entering a switch-off point selects either a 9999 FNU Max contact (switch-off point < switch-on 9999 NTU point) or a Min contact (switch-off point > 9999 ppm / 3000 ppm...
Page 53
Liquisys M CUM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) Entering a switch-off point selects either a Max contact (switch-off point < switch-on 100.0 °C (212 °F) point) or a Min contact (switch-off point > 100.0 ¡C...
Page 54
Commissioning Liquisys M CUM223/253 Coding Field Setting range Display Info (Factory settings, bold) See "P(ID) controller" section. Enter integral action With every Hold, the I-component is set to time T 0.0 min R234 R234 zero. Although Hold can be deactivated in (0.0 = no...
Page 55
Liquisys M CUM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) Enter rinsing/cleaning 30 s Settings for Hold and relay are active for this R242 R242 time 0 to 999 s time. RinseTime The pause time is the time between two...
Page 56
Commissioning Liquisys M CUM223/253 Coding Field Setting range Display Info (Factory settings, bold) Enter number of R256 R256 R253 to R255 is repeated. repeat cycles 0 to 5 Rep.Rate 360 min The pause time is the time between two R257...
Liquisys M CUM223/253 Commissioning 6.4.7 Concentration measurement The basic version does not include functions in italic. Coding Field Selection or range Display Info (factory settings bold) Function group Four different concentration curves can be CONCENTRATION entered in this function group.
Commissioning Liquisys M CUM223/253 6.4.8 Service Coding Field Setting range Display Info (Factory settings, bold) SERVICE function Service function settings. group SERVICE ENG = English GER = German FRA = French Select language ITA = Italian Language NL = Dutch...
Liquisys M CUM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) Reset the device to the Sens = last calibration is deleted and is reset to basic settings factory setting. Sens = sensor data Facty = all data (apart from A1 a. S1) are...
Commissioning Liquisys M CUM223/253 6.4.10 Interfaces Coding Field Setting range Display Info (Factory settings, bold) INTERFACE Communication settings (only for device function group version HART or PROFIBUS). INTERFACE Each address may only be used once in a Address network. HART: 0 to 15 If a device address ≠...
Liquisys M CUM223/253 Commissioning Calibration Measuring chain calibration is performed in this function group. The calibration data are saved in an EEPROM directly in the sensor. For this reason: • Recalibration is not required in the event of a power failure •...
Page 62
Commissioning Liquisys M CUM223/253 Calibration menu The calibration menu offers the following options: 3–Pt Three-point calibration Corr Three-point correction Edit Edit calibration Refl Installation adjustment 1–Pt One-point calibration Data Calibration data Three-point calibration (3–Pt) You should perform the calibration in the turbidity/solids concentration range in which you plan to measure.
Page 63
Liquisys M CUM223/253 Commissioning One-point calibration (1–Pt) In the area of TS/concentration measurement, one-point calibration is used to change the conversion factor (field C166). The slopes are not changed. In the FNU range, the two slope values are adjusted by a one-point calibration. This is possible because the conversion factor in the FNU range is always 1 and the editing range is limited to 4000 FNU.
Page 64
Commissioning Liquisys M CUM223/253 Version TB: Initial settings for residual concrete water The version TB contains the Plus-package with additional setting options. The default values set in individual fields of the menus differ from the standard version to make commissioning as simple as possible.
Page 65
Liquisys M CUM223/253 Commissioning Coding Field Selection or range Display Info (factory settings bold) Function group Calibration settings. CALIBRATION CALIBRAT 3-Pt = Three-point calibration (1) Corr = Three-point correction (2) For data set 1 (B4), only the “Data” function 3-Pt...
Page 66
Commissioning Liquisys M CUM223/253 Coding Field Selection or range Display Info (factory settings bold) If C114 = E xxx, then only no or new Store calibration (Exception: calibration warning E84). If new, C115 C115 results return to C. If yes / no, return to Store “Measurement”.
Page 67
Liquisys M CUM223/253 Commissioning Coding Field Selection or range Display Info (factory settings bold) o.k. Calibration status is o.k. C134 C134 displayed Exxx Status If C134 = E xxx, then only no or new Store calibration (Exception: calibration warning E84). If new,...
Page 68
Commissioning Liquisys M CUM223/253 Coding Field Selection or range Display Info (factory settings bold) o.k. Calibration status is o.k. C152 C152 displayed Exxx Status If C152 = E xxx, then only no or new Store calibration (Exception: calibration warning E84). If new,...
Liquisys M CUM223/253 Commissioning Offset The settings in the OFFSET function group can be used to calibrate the measurement to a reference measurement. This requires a linear shift of all the measured values, i.e. the adjustment is determined for one measured value, and all others are calculated using the same adjustment.
Commissioning Liquisys M CUM223/253 Slope With the settings in the function group SLOPE, a measured value can be adapted to a reference value. All measured values are proportionally adapted over the entire measuring range according to this change. Example: The displayed measured value is 2.5 g/l. It is adapted to the reference value of 2.0 g/l by means of the slope function.
Liquisys M CUM223/253 Maintenance Maintenance Take all the necessary measures in time to guarantee the operational safety and reliability of the entire measuring system. Maintenance work at the transmitter comprises: • Calibration (see "Calibration" section) • Cleaning of assembly and sensor •...
Maintenance Liquisys M CUM223/253 7.1.2 Checking the measuring point The sensors CUS31 and CUS41 cannot be simulated as they contain the complete data processing and all the measured values are transmitted to CUM223/253 using the digital interface RS 485. Therefore a functional sensor is required for the measuring point test.
Liquisys M CUM223/253 Accessories Accessories Sensors Turbimax W CUS31 • Turbidity sensor for drinking water and wastewater applications, 90 ° scattered light method • Ordering acc. to product structure, see Technical Information (TI176C/07/en) Turbimax W CUS41 • Turbidity sensor for wastewater and solid content measurements, 90 ° scattered light method •...
Accessories Liquisys M CUM223/253 Mounting accessories • Weather protection cover CYY101 for mounting of field housing, for outdoor installation material: stainless steel 1.4031 (AISI 304); order no. CYY101-A 270 (10.63) 300 (11.81) mm (inch) a0005585 Fig. 37: Weather protection cover for field instrument •...
Accessories Liquisys M CUM223/253 Software and hardware add-ons The add-ons can only be ordered by quoting the serial number of the device in question. • Plus Package Order no. 51500385 • Chemoclean Order no. 51500963 • Two-relay card Order no. 51500320 •...
Liquisys M CUM223/253 Trouble-shooting Trouble-shooting Trouble-shooting instructions The transmitter constantly monitors its functions itself. If an error occurs which the device recognizes, this is indicated on the display. The error number is shown below the display of the main measured value. If more than one error occurs, you can call these up with the MINUS key.
Page 78
Trouble-shooting Liquisys M CUM223/253 Error Display Tests and/or remedial measures Alarm contact Error current Autom. cleaning start Facty User Facty User Facty User E067 Set point exceeded limit contactor 1 E068 Set point exceeded limit contactor 2 Check configuration. E069...
Liquisys M CUM223/253 Trouble-shooting Process-specific errors Use the following table to locate and correct errors. Error Possible cause Tests and / or remedial measures Equipment, spare parts, personnel Sensor / sensor cable defective Test with new or with different functional CUS31 or CUS41 (either type is suitable for sensor.
Page 80
Trouble-shooting Liquisys M CUM223/253 Error Possible cause Tests and / or remedial measures Equipment, spare parts, personnel Controller switched off Activate controller. See fields R2xx. Controller in "Manual/Off" mode Choose "Auto" or "Manual/On" mode. Keyboard, REL-key Controller/limit contact Pickup delay setting too long Disable or shorten pickup delay.
Page 81
Liquisys M CUM223/253 Trouble-shooting Error Possible cause Tests and / or remedial measures Equipment, spare parts, personnel No central PA/DP module Verify by looking at nameplate: Upgrade to LSCP module, PA = -xxx3xx /DP = xxx4xx. see chapter "Spare parts".
Compare line voltage and nameplate data. User, electrical technician Device gets hot Power unit defective Replace power unit. Diagnosis only by Endress+Hauser Service Transmitter module defective (module: If test negative: replace module (note MKT1), please first carry out tests and Measuring input test: variant).
Page 83
Liquisys M CUM223/253 Trouble-shooting Error Possible cause Tests and/or remedial measures Execution, tools, spare parts Adjustment not correct Check with installed current simulation, If simulation value incorrect: adjustment in Load too big connect mA meter directly to current factory or new module LSCxx required.
Trouble-shooting Liquisys M CUM223/253 Spare parts Spare parts are to be ordered from your sales center responsible. Specify the order numbers listed in the chapter "Spare parts kits". To be on the safe side, you should always specify the following data with your spare part orders: •...
Liquisys M CUM223/253 Trouble-shooting 9.5.2 Panel-mounted instrument 426a 426b 10 / 20 40 ... 90 290 / 300 230V 115V 100V a0003171 Fig. 40: Exploded view drawing of panel-mounted instrument The exploded view drawing contains the components and spare parts of the panel-mounted instrument.
Page 86
Trouble-shooting Liquisys M CUM223/253 Item Kit description Name Function/contents Order number Power unit (main module) LSGA 100 / 115 / 230 V AC 51500317 Power unit (main module) LSGD 24 V AC + DC 51500318 Central module (controller) LSCH-S1 1 current output...
Liquisys M CUM223/253 Trouble-shooting 9.5.3 Dismantling the field instrument " Caution! Please note the effects on the process if the device is taken out of service! Note! Please refer to the following diagram for the item numbers. To dismantle the field instrument you need the following tools: •...
Trouble-shooting Liquisys M CUM223/253 9.5.4 Field instrument Pos. 10 Netzteil 100 – 230 V AC Sicherung 230 V 115 V 460b 100 V 40 ... 90 450b 450a 310/320 460a 10/20 290/300 450c a0003173 Fig. 41: Exploded view drawing of field instrument...
Page 89
Liquisys M CUM223/253 Trouble-shooting The exploded view drawing contains the components and spare parts of the field device. You can take the spare parts and the corresponding order number from the following section using the item numbers. Item Kit description...
Trouble-shooting Liquisys M CUM223/253 9.5.5 Replacing the central module Note! Generally, when a central module has been replaced, all data which can be changed are set to the factory setting. Proceed as described below if a central module is replaced: If possible, note the customized settings of the device, such as: –...
Liquisys M CUM223/253 Technical data Technical data 10.1 Input Measured variable Turbidity, suspended solids, temperature Measuring range CUS31: 0.000 to 9999 FNU/NTU 0.00 to 3000 ppm 0.0 to 3.0 g/l 0.0 to 200.0 % CUS41: 0.00 to 9999 FNU/NTU 0.00 to 9999 ppm 0.0 to 300.0 g/l...
Technical data Liquisys M CUM223/253 Controller Function (adjustable): Pulse length/pulse frequency controller Controller behaviour: P, PI, PD, PID Control gain K 0.01 to 20.00 Integral action time T 0.0 to 999.9 min Derivative action time T 0.0 to 999.9 min Period length for pulse length 0.5 to 999.9 s...
Liquisys M CUM223/253 Technical data 10.6 Mechanical construction Design/dimensions Panel-mounted instrument: L x W x D: 96 x 96 x 145 mm (3.78" x 3.78" x 5.71") Installation depth: approx. 165 mm (6.50") Field device: L x W x D: 247 x 170 x 115 mm (9.72"...
Appendix Liquisys M CUM223/253 Appendix Operating matrix Enter absolute value Store offset Function group Enter offset Calibration status is displayed OFFSET current measured value yes; no; new o.k. E--- Enter absolute value Calibration status Store slope Function group Enter slope...
Page 95
Liquisys M CUM223/253 Appendix Display of conversion factor current value C166 Entry of Entry of gas bubble Entry of correct temperature difference barrier process temperature (offset) 3.0% current meas. value current offset 0.1 … 100% –5.0 ... 100.0 °C –5.0...5.0 °C...
Page 96
Appendix Liquisys M CUM223/253 Delay for cont. Cont. switch-off Delay for cont. Switch-off limit value Switch-off direction Feedforward control Function group by current input switch-on current input for current input for current input switch-off current input to PID controller CURRENT INPUT Off;...
Page 97
Liquisys M CUM223/253 Appendix Feedforward control = 1 0 … 100% Entry of x value Entry of y value Table status o.k. (meas. value) (current value) yes; 0.000 NTU 4.00 mA FNU / g/l / % 0.0 ... 20.0 mA...
Page 98
Appendix Liquisys M CUM223/253 Funkction group Select table to be Table option Set number of Entry of turbidity Selection of concentration Value pair selection CONCENTRATION selection value pairs value curve for calibration of edited display value MEASUREMENT read 0 NTU / FNU / ppm / mg/l / 1 ...
Page 99
Liquisys M CUM223/253 Appendix Table status o.k. Entry of concentration yes; entire measuring range Serial number Reset of instrument Order number Perform instrument test is displayed to basic values is displayed Sens = sensor data; Displ = display test Facty = factory settings...
Page 100
Appendix Liquisys M CUM223/253 Endress+Hauser...
Need help?
Do you have a question about the Liquisys M CUM223 and is the answer not in the manual?
Questions and answers