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DT9000

20171205-V2

Comment: the precondition for the following examples is

that the output is in



mode, that is, it switches ON when

the measured value

≥

L1.LL (low limit). The input signal

has an increasing characteristic, but rippled.



value

= 1000. The value of the relevant hysteresis (



) = 0.

Example:

Hysteresis > 0

A hysteresis with a value of zero means that the limit
detection has no hysteresis. The output switches ON when

the value on the display reaches or is in excess of



and switches OFF when it goes lower than



again.

The following figure shows the essentials of
hysteresis, when it’s value is higher than zero

Figure:

Hysteresis > 0

Содержание DT9000

Страница 1: ...DT9000 Intrinsically Safe Process Indicator Operating Instructions...

Страница 2: ...ronmental instructions 6 3 Product description 7 3 1 Delivery configuration 7 3 2 Principle of operation 8 3 3 Adjustment 9 3 4 Storage and transport 9 4 Mounting 10 4 1 General instructions 10 4 2 Ma...

Страница 3: ...e 10 menu item 52 7 13 Changing the supervisor code 11 menu item 54 7 14 Display operating modes 12 menu item 56 7 15 Disable displaying the leader zeros 13 menu item 58 7 16 Clear minimum and maximum...

Страница 4: ...e personnel and put into practice by them 1 3 Symbolism used Information tip note This symbol indicates helpful additional information Caution warning danger This symbol informs you of a dangerous sit...

Страница 5: ...strument can give rise to application specific hazards or demage to system components through incorrect mounting or adjustment 2 4 General safety instructions The DT9000 is a high tech instrument requ...

Страница 6: ...reas These safety instructions are part of the operating instructions manual and come with the Ex approved instruments 2 7 Environmental instructions Protection of the environment is one of our most i...

Страница 7: ...000 2 pcs of srew clamps only panel mounting version 2 pcs Pg 11 cable entries instrument sealing only panel mounting version documentation this oparating instructions manual certification warranty Th...

Страница 8: ...hrough a measuring resistor and is converted by a 16 bit A D converter into digital value The digital value is processed by a microcontroller The user may set up the the configuration parameters scali...

Страница 9: ...torage and transport This instrument should be stored and transport in places whose climatic conditions are in accordance with Chapter 10 1 Technical specifications as described under the title Enviro...

Страница 10: ...d connecting the instrument and that minimises the hazard of water dust or dump getting into the instrument Mounting cable entries The insrument is equipped with one PG11 cable entry and two additiona...

Страница 11: ...ivers with inappropriate head size may cause a damage in the screws heads or in the instrument front panel Remove the screws by turning them in anticlockwise direction as shown in the drawing Step 1 T...

Страница 12: ...ing for the fastening of the housing The diameters of the holes are made for M3 screws Holes for mounting 1 Mark the places of the holes in accordance with the drawing 2 Make the holes for mounting re...

Страница 13: ...ing on the material of the wall and in order to ensure the most practicable mounting method it is not mandatory of course to use the above described threaded joints Depending on the situation special...

Страница 14: ...V2 4 4 Mounting as a panel instrument Preparatory steps 1 Cut out the panel according to the figure shows below The cut out needs spetial tools it must be carried out by trained specialist personnel...

Страница 15: ...p 2 3 Put the instrument into the prepared cut out until it possible and check the fitting of the seal between case and mounting surface 4 Put on the enclosed screw clamps onto the sides of the instru...

Страница 16: ...ly transmitter etc The connection must be carried out by trained and authorised personnel only There are two different cases for the current loop to be connected The DT9000 acts as a terminal device o...

Страница 17: ...signal source and another cable goes to the processing unit s The following figure shows this case Wiring plan connecting the instrument as an intermediate device see also Application example Be care...

Страница 18: ...sides for suppress the influence of high frequency interference signals this can be achived by use of a capacitor e g ceramic capacitor 1 nF 1500 V or separate potential equalisation The low frequenc...

Страница 19: ...the case of flexible cable ends you can facilitate opening the connection part by pushing down the white button 2 By pushing the wire in the self closing connection is being established Check it by p...

Страница 20: ...t the nominal 4 20 mA current should flow in the loop If the connection is correct numbers or a characters has to appear on the display If nothing appears on the display most probably there is no curr...

Страница 21: ...of instrument than the current in mA with a resolution of 3 decimals In the case of an error message If anything else appears on the display instead of the numbers showing the current value e g a mess...

Страница 22: ...ressions in abbreviated form The following part gives a list of the possible mnemonics and their meaning The left side column shows the characters appearing on the display The right side column gives...

Страница 23: ...e value presented on the display is twenty thousand 20000 The value presented on the display is minus twenty thousand During code writing Code Code Bad Code Bad Code A User login took place User A Sup...

Страница 24: ...es the menu can be started Yes Minimum maximum values on the display button Minimum value MINimum Maximum value MAXimum Firmware version FiRMwareE Low numeric value not possible to display High numeri...

Страница 25: ...g the code password in when the right code has been given it enters into the menu During this time the measurement is suspended and the limit outputs don t change If no keys are pressed for a period o...

Страница 26: ...as long as you see this The mnemonic indicates that it will be displayed the firmware version 6 Keeping the button pressed down after 1 5 sec the firmware version will be displayed as long as the but...

Страница 27: ...t s functionality depends on the operating mode of displaying the limits In default factory setting this function is switched off therefore pushing the button does not cause any changes Detailed descr...

Страница 28: ...the code in 1 Press the MENU button The blinking mnemonic shows that the device is asking for the code 2 Three zeros appear The zero at the left side is blinking Pressing the button you can increase...

Страница 29: ...plays the mnemonic Auto Escape after 1 minute has passed from the last pressing of a button and it RESTARTS i e goes back to the measuring mode This solution is due to security unauthorised persons af...

Страница 30: ...5 Scale 4 mA 42 page 06 Scale 20 mA 44 page 07 Averaging number 46 page 08 Display refresh time 48 page 09 Tests 50 page 10 User code 52 page 11 Supervisor code 54 page 12 Display mode 56 page 13 Lead...

Страница 31: ...state of limit outputs default factory setting Dynamic button Dynamic Button It displays the state of limit outputs as long as the ENTER button is kept pressed Timed button Timed Button It displays th...

Страница 32: ...the given menu item and you see 2 If you want to change the settings you have done just now or if you just want to check what you have typed in go on with the operation from point 2 of the Sequence of...

Страница 33: ...en or out of the two adjustable limit values In Chapter 10 8 Limit outputs in the Appendix you find a detailed training material on the limit outputs Setting the operating mode Sequence of operations...

Страница 34: ...ut gets switched on when the displayed physical value is between the low limit value LL and the higher limit value HL L or H The output gets switched on when the displayed physical value isn t between...

Страница 35: ...can be modified by pressing the button 11 Pressing the button you can switch on or off the half digit or you can type in the value 20 000 10 000 20 000 0 000 12 Pressing the button you can select the...

Страница 36: ...utput is in the operating mode Hysteresis of the low limit Sequence of operations 17 Enter by pressing the ENTER button 18 You see this on the display This is the value of L1 LH It can be changed betw...

Страница 37: ...ressing the button 26 Pressing the button you can switch the half digit on or off or you can type in the value 20 000 10 000 20 000 0 000 27 Pressing the button you can select the next digit 28 Pressi...

Страница 38: ...linking digit etc 38 After you have set the value of the hysteresis press the MENU button to exit from this sub menu item and you see this Exit from the menu item 1 After finishing the settings press...

Страница 39: ...ou see on the display 2 Keep stepping by pressing the button as long as you see this menu item 3 Enter the menu item by pressing the ENTER button 4 Keep stepping by pressing the button as you see this...

Страница 40: ...em and you see this 3 If you don t want to exit the menu as you want to do further settings then you may select the desired menu items by pressing the button Exit from the menu 1 Press the MENU button...

Страница 41: ...t to the right by pressing the button 3 decimals default factory setting 2 decimals 1 decimal no decimals 4 decimals Exit from the menu item 1 After finishing the setting press the MENU button to exit...

Страница 42: ...g as you see this menu item 3 Enter the menu item by pressing the ENTER button 4 You see on the display the arrow is blinking in the upper left corner The arrow indicates that the uppermost digit the...

Страница 43: ...ped in go on with the operation from point 3 of the Sequence of operations 3 If you don t want to exit the menu as you want to do further settings then you may select the desired menu items by pressin...

Страница 44: ...de The way the code should be type in is described in Chapter 7 1 Typing the code in You see on the display 2 Keep stepping by pressing the button as long as you see this menu item 3 Enter the menu it...

Страница 45: ...Exit from the menu item 1 After finishing the setting press the MENU button to exit from the menu item and you see this 2 If you want to change the setting you have done just now or if you just want...

Страница 46: ...Chapter 7 1 Typing the code in You see on the display 2 Keep stepping by pressing the button as long as you see this menu item 3 Enter the menu item by pressing the ENTER button 4 You see this on the...

Страница 47: ...the input signal 0 3 seconds Exit from the menu item 1 After finishing the setting press the MENU button to exit from the menu item and you see this 2 If you want to change the setting you have done...

Страница 48: ...way the code should be type in is described in Chapter 7 1 Type the code in You see on the display 2 Keep stepping by pressing the button as long as you see this menu item 3 Enter the menu item by pre...

Страница 49: ...in go on with the operation from point 3 of the Sequence of operations 3 If you don t want to exit the menu as you want to do further settings then you may select the desired menu items by pressing t...

Страница 50: ...display get switched on By pressing the button several times you can select from several test patterns by which you can decide whether the display is good or not You may exit from the display test by...

Страница 51: ...to exit from the Tests menu item and you see this 2 If you want to return to the tests go on from point 3 of the Sequence of operations 3 If you don t want to exit the menu because you want to perfor...

Страница 52: ...igit on the left side is blinking Pressing the button you can increase the value of the blinking digit etc Pressing the button you can select the next digit 3 Pressing the buttons and type in the new...

Страница 53: ...lready left the menu item Changing the user code you see this 2 If you want to change the setting you have performed just now or if you just want to check what you have typed in continue the operation...

Страница 54: ...side is blinking Pressing the button you can increase the value of the blinking digit etc Pressing the button you can select the next digit 3 Pressing the buttons and type in the new supervisor code 4...

Страница 55: ...e menu item Changing the supervisor code you see this 2 If you want to change the setting you have performed just now or if you just want to check what you wrote in continue the operation from Point 3...

Страница 56: ...by typing a supervisor code The way the code should be type in is described in Chapter 7 1 Typing the code in You see on the display 2 Keep stepping by pressing the button as long as you see this menu...

Страница 57: ...typed in continue the operation from Point 3 of the Sequence of operations 3 If you do not want to exit from the menu as you want to perform further settings you may press the button to select the des...

Страница 58: ...operations 1 Enter the menu by typing a supervisor code The way the code should be type is described in Chapter 7 1 Typing the code in You see on the display 2 Keep stepping by pressing the button as...

Страница 59: ...ve typed in go on with the operation from point 3 of the Sequence of operations 3 If you do not want to exit from the menu because you want to perform other settings too you may press the button to se...

Страница 60: ...want to clear the minimum and maximum values after all press the MENU button This takes you out from this menu item and you see this 5 If you want to clear the minimum and maximum values press the but...

Страница 61: ...this on the display 2 Keep stepping by pressing the button as long as you see this menu item 3 Enter the menu item by pressing the ENTER button 4 The mnemonic is shown on the display The mnemonic is...

Страница 62: ...t is recommended to notice of the displayed error message as well as of the phenomenon seen These information please communicate to the Datcon service personnel 9 Dismounting 9 1 Dismounting procedure...

Страница 63: ...Maximum current and voltage see at Safety data Input parameters Input signal Current Range 3 5 20 5 mA Voltage drop 2 V at 20 mA 2 2 V at 4 mA Charasteristics Linear Display manual controls Display u...

Страница 64: ...ion U 1 V at 10 mA Load rating 10 V 16 mA max Ex safety data Refreshing time same as the display s one Hysteresis 0 999 the last 3 digits of the display Environmental conditions Operating temperature...

Страница 65: ...DT9000 20171205 V2 65 10 2 Application example...

Страница 66: ...h it cannot be measured Repairing the measuring loop most probably the transmitter is faulty therefore too high current flows in the loop Repair the measuring loop Scaling error Error Scale The value...

Страница 67: ...PROM Protected The memory storing the operation parameters is faulty therefore changing the stored parameters in not possible Repairing by the service Calibration error Service Calibration The instrum...

Страница 68: ...utomatically when changes Auto Change For a period of 2 5 sec after a change has taken place in the output Disabling by ENTER Automatically periodical Auto Periodical Periodical ON OFF in each 2 5 sec...

Страница 69: ...The displayed measurement result is generated as the average of several measurements The number of measurements can be defined here By increasing this number the display stability increases too but t...

Страница 70: ...u have typed it once If the two codes are not identical with each other the mnemonic Bad Code appears on the display and the instrument exits the menu item Make sure not to forget the Supervisor Code...

Страница 71: ...ottom of the display Low numerical value not possible to display This mnemonic is displayed in that case when you have switched the display mode from four and a half digit to three and a half digit an...

Страница 72: ...e on the display Setting the decimal point1 Keep stepping by pressing the button as long as you see this menu item 2 Enter the menu item by pressing the ENTER button 3 You see this on the display The...

Страница 73: ...om the menu item and you see this Disabling the leader zeros 1 Pressing button keep stepping as long as you see this menu item 2 Enter the menu item by pressing the ENTER button 3 You see this on the...

Страница 74: ...assigned to the limit output No 1 Limit 1 Low Limit means that this is the lower one among the two limit values The high limit value is designated as where High Limit means that this is the higher one...

Страница 75: ...epending on the value of the measured and displayed physical signal Default factory setting OFF Detailed description on the following page Low limit value Low Limit It is one of the numerical values t...

Страница 76: ...it A range outside the low and high limits It switches ON when measured value low limit OR measured value high limit Always switched ON Independently from the measured value the output is always ON Th...

Страница 77: ...istic but rippled value 1000 The value of the relevant hysteresis 0 Example Hysteresis 0 A hysteresis with a value of zero means that the limit detection has no hysteresis The output switches ON when...

Страница 78: ...hysteresis 10 How does it affect the switching of the output Example Hysteresis 0 When the displayed value increases the output does not switch ON at 1000 only at the value 1000 10 1010 After it has...

Страница 79: ...limit output is always switched OFF It switches ON when measured value low limit The output switches ON if the displayed value numerical value defined as the In this operating mode the value of the p...

Страница 80: ...ON if the displayed value is lower than the numerical value defined as the parameter In this operating mode the value of the parameter is indifferent it does not influence the operation of the output...

Страница 81: ...t AND measured value high limit The output switches ON when the displayed value numerical value defined as the parameter AND besides it is numerical value defined as the Example for the application It...

Страница 82: ...the application It indicates that the measured value out of the desired limits Displaying the limit values Switching the displaying on from the 04 LD menu item Both outputs are OFF Output 1 is ON out...

Страница 83: ...cause it to switch off The output can be switched off by pressing the ENTER button only acknowledgement Alarm Mode Of course if the condition that causes the output to switch on persists the limit out...

Страница 84: ...signalling continuously as long as a manual acknowledgement takes place in those cases when the liquid level goes at any time lower than 50 litres or when it goes higher than 95 litres The settings o...

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