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Operating Instructions
®
DULCOMETER
DMT
On-site measurement transducer
Measured variable chlorine
only for DMT measuring cells
___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
DMTa
Please enter the identity code for your device here!
Please read the operating instructions through completely before
commissioning this equipment! · Do not discard!
Any part which has been subject to misuse is excluded from the warranty!
Part no. 987395
ProMinent Dosiertechnik GmbH · 69123 Heidelberg · Germany
BA DM 107 12/03 GB
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Summary of Contents for ProMinent Dulcometer DMT
- Page 1 Please read the operating instructions through completely before commissioning this equipment! · Do not discard! Any part which has been subject to misuse is excluded from the warranty! Part no. 987395 ProMinent Dosiertechnik GmbH · 69123 Heidelberg · Germany BA DM 107 12/03 GB...
- Page 2 Publishing details Publishing details: Operating Instructions ® DULCOMETER DMT on-site measurement transducer Measured variable chlorine © ProMinent Dosiertechnik GmbH, 2000 Address: ProMinent Dosiertechnik GmbH Im Schuhmachergewann 5-11 69123 Heidelberg · Germany Postfach 101760 69007 Heidelberg · Germany Tel.: +49 (6221) 842-0 Fax: +49 (6221) 842-419 info@prominent.de...
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Page 3: Table Of Contents
Device overview and control elements ............Function description ....................General ........................Key functions ...................... Operating menu, schematic ................ Negotiating operating menu ............... 6.4.1 Calibration menu ....................6.4.2 Info-Display ......................6.4.3 Menu options ...................... 6.4.4 Negotiating the menu options ..............ProMinent ® Page 3... - Page 4 Spare parts and accessories ................Appendix Declaration of conformity ................... Terminal connection plan chlorine ................ Wiring example - two wire system ................ PROFIBUS ® circuit board terminal connection ..........Index ............................Drilling template for DMT ................... ProMinent ® Page 4...
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Page 5: Device Identification/Identity Code Chlorine
DULCOMETER ® DMT series measurement transducer Mounting type wall/pipe mounted ® control panel mounted (not PROFIBUS -DMT) Version with ProMinent logo Electrical connection 4-20 mA two wire PROFIBUS ® -DP, 24 V DC (16...30 V DC) Communication interface none PROFIBUS ®... -
Page 6: General Instructions For Use
Guidelines are intended to make your work easier. and safety instructions: CAUTION Describes a potentially dangerous situation. Non-observance can lead to personal injury or damage to property! IMPORTANT Describes a potentially dangerous situation. Non-observance can lead to damage to property. ProMinent ® Page 6... -
Page 7: About This Device
Storage and transport Store and transport the DMT in the original packaging! IMPORTANT • Protect the DMT from damp and the effects of chemicals even when packed! ® ProMinent Page 7... -
Page 8: Assembly And Installation
Hang the DMT onto the top of the bracket (fig. 3, ➀) and push down gently against the bracket (fig. 3, ➁); then push upwards until you hear a click (fig. 3, ➂). Tighten the locking screw to secure more firmly (housing is open). ProMinent ® Page 8... -
Page 9: Pipe Mounting
Pipe mounting Mounting material (included in delivery): 1 x wall/pipe bracket 2 x cable ties 1 x sealing cap 1 x locking screw (PT) Can be mounted onto pipes of diameters from 25 mm to 60 mm. ® ProMinent Page 9... -
Page 10: Panel Mounting
(To achieve enclosure rating IP 54, steel must be at least 2 mm thick; plastic should be correspondingly thicker.) NOTE The DMT will protrude from the control panel approx. 30 mm once mounted. Fig. 4 3463_4 ProMinent ® Page 10... -
Page 11: Installation (Electrical)
Can lead to malfunction of DMT. • The hinge between the front and back sections of the housing is not particularly strong. When working on the front section it should be held securely in place. ® ProMinent Page 11... -
Page 12: Wall Mounting
Check that the seal is located correctly. IP 65 is achieved only when assembly has been carried out correctly. (If necessary pull the front section forward in order to reduce the stress on the seal.) Tighten the housing screws finger tight. ProMinent ® Page 12... -
Page 13: Pipe Mounting
Panel mounting NOTE The cable must be laid in cable ducting on site to minimise stresses. Connect the cable from the back through the cut-out in the control panel: Follow the steps given in 4.2.4 Connecting terminals. ® ProMinent Page 13... -
Page 14: Connecting Terminals
Fig. 7 Fig. 8 pH/ORP Cl/ClO /O liquid pot. (blk)-U (bl) +U ref.el. glass el. (br) meas.sig. 4to20mA (wth) Pt1000 + Pt100 + (gr) Pt1000 - /sig.gnd. Pt100 - ProMinent ® Page 14... -
Page 15: Device Overview And Control Elements
Device overview and control elements Device overview and control elements Fig. 9 Measured variable label LC display CAL key Change key Enter key Back key Up key Down key 3456_4 ® ProMinent Page 15... -
Page 16: Function Description
Block circuit diagram EEPROM (parameter memory) Measured FlashROM variable µP Temperature (program memory) Signal output 4 ... 20 mA Power supply, current control 16 ... 40 V DC resp. 30 V DC (PROFIBUS ® variant) Keypad LC display ProMinent ® Page 16... -
Page 17: Key Functions
The operating menu comprises: • the permanent display • the calibration menu • the info displays (info level) for the display of pre-set parameters resp. general settings • menu options (settings level) for altering parameters resp. general settings ® ProMinent Page 17... -
Page 18: Negotiating Operating Menu
To access these menu options the access code must be entered when it is requested and confirmed with the enter . Access restriction is reinstated each time you return to the permanent display. • The access code is factory set to 5000 (inactive). ProMinent ® Page 18... -
Page 19: Calibration Menu
Your entries become active immediately and are stored permanently when you press the enter key If you do not wish to save changes, exit the menu option using the back . You will then return to the info display for that menu. ® ProMinent Page 19... -
Page 20: Dmt Settings
• proportional measured variable measured variable at 4 mA measured variable at 20 mA • manual (enter value) General setting Measured variable Settings configuration Access • Cl code = Request access code (if activated by the user) ProMinent ® Page 20... -
Page 21: Measured Variable Chlorine
4 mA: 0.00 ppm 20 mA: 5.00 ppm 20 mA: 5.00 ppm general settings change device type general settings DMTaW090C10E0220 !! correct probe ?? language type: Cl DMTaW090C10E0220 2.1.02 DMTaW090C10E0220 english change access code = 5000 free access ® ProMinent Page 21... -
Page 22: 7.1.2 Parameter Measurement
7.1.3.2 General setting: Temperature measurement = manual (= 1 in the identity code) param. temperature T = 22.6 ˚C input: manual unit: ˚C unit: ˚C Enter the process temperature under “T“. ° ° Select the temperature unit C or F under “Unit“. ProMinent ® Page 22... - Page 23 Immerse the DMT temperature gauge and the reference measurement device into the same liquid sample. Read off the value from the reference measurement device once the temperature is stable. Set the correction value “Offset” until the temperature value is identical to the reference value. ® ProMinent Page 23...
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Page 24: 7.1.4 Parameter Output
(= 1 in the identitiy code) param. output signal I = 10.2 mA output: constant I = 10.2 mA Enter under “I” any output current between 4 and 20 mA. This setting serves as a function check. ProMinent ® Page 24... - Page 25 The HOLD value for the output current is held until calibration is complete. It is also possible to set a predetermined HOLD value in the first option in the calibration menu (see 8.2.1). ® ProMinent Page 25...
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Page 26: 7.1.5 General Settings
The following tables show the settings options depending upon the selected measured value (the sequence from left to right corresponds to the identity code position). IMPORTANT If you change the probe type, all numerical values and calibration values set in the operating menu are lost! ProMinent ® Page 26... - Page 27 Access restriction is reinstated each time you return to the permanent display. • To deactivate the access code, reset to 5000 in the “Change access code” menu. • Inadmissible access codes are: 0000, 1111, 2222, .., 9999 and 1234. ® ProMinent Page 27...
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Page 28: Operating The Dmt
(HOLD) or at 23 mA (see chapter 7.1.5 General settings). • Inadmissible values render the ongoing calibration invalid. The error messages are explained in chapter 9.2. ProMinent ® Page 28... - Page 29 Determine the chlorine content in the sample water using a DPD-kit. Enter the chlorine content with the arrow keys. Press the Enter key to return to the previous menu option. Continue as described under “Conclude calibration”. ® ProMinent Page 29...
- Page 30 Press the enter key to adopt the values or the back key to exit without saving the values. The display changes to permanent display. The calibration is complete. NOTE Inadmissible values render the current calibration process invalid. The error messages during calibration are explained in chapter 9.2. ProMinent ® Page 30...
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Page 31: Troubleshooting
(set temperature measurement to manual if necessary) Temp. input error! -99.9 ° Short circuit Check probe connection (set temperature measurement to manual if necessary) The error message disappears automatically once you have remedied the fault. ® ProMinent Page 31... -
Page 32: Error Messages During Calibration
S > 400 % Slope adopted Calibr. invalid !!! Slope > 400% !!! S > 1000 % Slope not adopted * The admissible setting time is: t < 60 s for a value fluctuation ∆U < 2 mV/s ProMinent ® Page 32... -
Page 33: Maintenance And Repair
You should clean the housing with a damp, soapy cloth and then rub dry. IMPORTANT Solvents may attack the surfaces and should not be used. Repair Please return the DMT to ProMinent Dosiertechnik GmbH for repair. Disposal IMPORTANT Electronic waste is treated as special waste! Observe current nationally and locally applicable directives. -
Page 34: Technical Data
0.5 °C (Pt 100 at 25 °C ambient temperature) Resolution: 0.1 °C Display Principle: LCD (liquid crystal display) Ambient conditions Operating temperature: -5 … 55 °C Storage temperature: -20 … 70 °C Air humidity: max. 95 % rel. humidity, non condensing ProMinent ® Page 34... -
Page 35: Spare Parts And Accessories
Part no. 1003205 Pipe clamps for pipe mounting Part no. 1002777 Chlorine measuring cells, Pt 100/Pt 1000 see product catalogue Sensor cable see product catalogue NOTE Please give the identity code when ordering electronic component kits. ® ProMinent Page 35... -
Page 36: Declaration Of Conformity
Declaration of conformity ProMinent ® Page 36... -
Page 37: Terminal Connection Plan Chlorine
Terminal connection plan chlorine Input Output ® (not PROFIBUS variants) DMT-measuring cell 4 3 2 1 Internal External ProMinent ® universal- cable Current loop 4-20 mA Supply voltage 16-40 V DC DMT-measuring cell ® ProMinent Page 37... -
Page 38: Wiring Example - Two Wire System
• Take into account the sum of the ohmic resistances of all devices in the current loop (excluding power supply). The input voltage of the transducer must never drop below 16 V during operation. The measured value will otherwise be wrong. ProMinent ® Page 38... -
Page 39: Profibus Circuit Board Terminal Connection
(plug in the connector on the side of the PROFIBUS ® circuit board with the red edge of the ribbon cable facing upwards, see fig.). Briefly disconnect from the power supply. ® ProMinent Page 39... -
Page 40: Index
Terminal connection plan DMT 14, 37 Key function 17 PROFIBUS ® circuit board 39 Troubleshooting 31 Two-wire technology 37 Language General setting 26, 27 LC display Wiring example-two wire system 38 Brightness 28 Zero point 22, 30 ProMinent ® Page 40... -
Page 41: Drilling Template For Dmt
Drilling template for DMT 4 Bohrungen Ø 3.5 4 holes, diameter 3.5 3460-4.1 ACHTUNG: Durch das Fotokopieren kann es zu Maßabweichungen kommen! NOTE: By making copies it's possible to get deviations! Page 41 ProMinent ®... - Page 42 Addresses and delivery information from the manufacturer: ProMinent Dosiertechnik GmbH Im Schuhmachergewann 5-11 69123 Heidelberg · Germany Postfach 101760 69007 Heidelberg · Germany Tel.: +49 6221 842-0 Fax: +49 6221 842-419 info@prominent.de www.prominent.de ProMinent ® Page 44...
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