Seojin Instech SDT-420 Installation Manual Download Page 27

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10.

10.5

5.3 URV Calibration Mode ( 100% Hundred Percentage )

.3 URV Calibration Mode ( 100% Hundred Percentage )

- Menu

Menu 02

02 : URV Auto Calibration Mode

: URV Auto Calibration Mode

· Fill the medium to a tank until the level corresponds to the URV.

· Save the calibration value by pressing the Enter Key.

· The current level of the medium is saved as URV.

- Menu

Menu 02

02-

-S

S : URV Manual Calibration State

: URV Manual Calibration State

· Go to the Manual state by the Down Key

· Set the length between LRL and URV in millimeter using Up and Down Keys.

· Save the calibration values by pressing the Enter Key.

10.

10.5

5.4 LRL Aut

.4 LRL Aut

.4 LRL Auto Calibration Mode ( ZERO )

o Calibration Mode ( ZERO )

- Menu

Menu 03

03 : LRL Auto Calibration Mode

: LRL Auto Calibration Mode

· LRL Calibration Setting Protection Mode

- Menu

Menu 03

03-

-S

S : LRL Auto Calibration State

: LRL Auto Calibration State

· Go to the Setting state (03-S) by pressing the Down Key.

· Fill the medium to a tank till the level corresponds to the LRL.

· Save the calibration values by pressing the Enter Key.

Summary of Contents for SDT-420

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Page 2: ...NTENTS Chapter Contents Page 1 Before installing 2 2 Introduction 4 3 Features 4 4 Principles of operation 5 5 Specifications 9 6 Name Plate 11 7 Installation 12 8 Displacer 16 9 Wiring 17 10 Configur...

Page 3: ...r benzene and use a neutral detergent WARNING WARNING WARNING WARNING 1 Where there are any concerns that a small trouble or an abnormal operation can cause any serious accidents an appropriate safety...

Page 4: ...h have their own lifetimes whereas some parts are degraded with the passage of time 19 We offer a two year guarantee for this instrument including its components if it is properly used 20 Do not move...

Page 5: ...ucceeded in launching this model to the market Our Displacement Type Level Transmitter can assure the reliable operation even under the harsh circumstance like 200 f and 450 This Displacement Type Lev...

Page 6: ...on peration peration peration 4 1 4 1 4 1 4 1 Overvie Overvie Overvie Overview Explosion Proof Type w Explosion Proof Type w Explosion Proof Type w Explosion Proof Type 4 2 4 2 4 2 4 2 Torsion Bar Tor...

Page 7: ...4 4 4 4 3 3 3 3 Overview Intrinsically Safety Type Overview Intrinsically Safety Type Overview Intrinsically Safety Type Overview Intrinsically Safety Type LJ...

Page 8: ...14 THRU CAPACITOR 3 MASK 15 BASE PCB SUPPORT 4 RETAINING RING 16 DISPLAY BRACKET 5 GLASS WINDOW 17 CYLINDER HEAD SCREW M3 6 STOP RING 18 CONNECTOR 7 O RING 19 MAIN BOARD PCB 8 DISPLAY COVER 20 MAIN P...

Page 9: ...s equal to the fluid displaced the submerged displacer of which the shape is cylinder is used for measuring the level and the density of a fluid and the interface levels between two different liquids...

Page 10: ...rmance Specifications 5 3 Performance Specifications 5 3 Performance Specifications Reference Accuracy 0 5 F S Operation Condition Effects Ambient Temperature 10 60 Zero 0 1 10K Span 0 07 10K 0 1 Max...

Page 11: ...ER RAMETER Ui 28V Ii 93mA Li 0 051mH Ci 12 4nF Ui 28V Ii 93mA Li 0 051mH Ci 12 4nF Ui 28V Ii 93mA Li 0 051mH Ci 12 4nF Ui 28V Ii 93mA Li 0 051mH Ci 12 4nF Marking Marking Marking Marking ATEX ATEX ATE...

Page 12: ...er is attached on The Displayer which includes Model No Input Power Output signal the date of manufacture and Tag No The others are hung on The Adjusting Housing Connector which includes power output...

Page 13: ...ing the maximum allowable surrounding temperature Adjust Housing 85 Displayer 70 all parts that have radiant heat such as Water Assembly Chamber Drum and Vessel should be insulated so that the radiant...

Page 14: ...level data In that case the below explained method can be considered to suppress the density specific gravity error within 20 As shown in the picture above Fig 8 expose the upper branch of the steam...

Page 15: ...Step 2 To To To To A A A Assembl ssembl ssembl ssemble the e the e the e the D D D Displacer isplacer isplacer isplacer Refer to Refer to Refer to Refer to Fig Fig Fig Fig 10 10 10 10 Put the displac...

Page 16: ...t use a tool Remove the nut fitted to the position bracket and tighten the stud bolts so that the connection flange and the blind flange would be assembled The number of stud bolts depends on the flan...

Page 17: ...er Length Vol Weight PN Vol Weight PN L N bar N bar 350 60 3 1000 19 1 94 100 42 4 500 18 1 84 250 500 48 3 920 17 1 73 100 42 4 710 24 2 45 250 750 42 4 1060 21 2 14 100 33 7 670 21 2 14 250 1000 33...

Page 18: ...Core Shield Wire should be used for the signal line In case of installation into an explosive area an Explosion Proof Cable Gland not supplied must be used instead of the Standard Cable Gland For the...

Page 19: ...one between the connection flange and the torsion bar guard The displayer is designed to protect itself against reverse polarity Using a Twisted Pair Cable 22AWG min is recommended to maintain the bes...

Page 20: ...f the analog signal is restricted by the loads of current loop the cables and instrument connected To obtain the 4 20 output signal the lowest supply voltage should be determined as a function related...

Page 21: ...from the voltages using a recorder the measurement can be performed by connec ting A and B or B and C 9 9 9 9 3 2 3 2 3 2 3 2 To To To To C C C Connect onnect onnect onnect P P P Plural lural lural l...

Page 22: ...d operate SDT 420 properly the calibration should be performed with appropriate variables according to the installed environment Some of these variables should be checked and inputted by a user at the...

Page 23: ...being measured USL U U U Upper S S S Sensor L L L Limit Maximum measurable value of sensor LSL L L L Lower S S S Sensor L L L Limit Minimum measurable value of sensor Calibration Range Measuring rang...

Page 24: ...utput Output 10 10 10 10 3 3 3 3 L L L Local ocal ocal ocal C C C Configuration onfiguration onfiguration onfiguration Open the displayer cover by twisting it then you can access to the Mask For the d...

Page 25: ...rmation on the upper part of the boxes below shows the current menu which is displayed on the Menu section and the current mode or menu can be switched by pushing the button shown left or below the bo...

Page 26: ...ation Mode 0 2 LRV Calibration Mode 0 2 LRV Calibration Mode 0 Zero Percentage Zero Percentage Zero Percentage Zero Percentage M M M Menu enu enu enu 01 01 01 01 LRV Auto Calibration LRV Auto Calibrat...

Page 27: ...anual Calibration State Go to the Manual state by the Down Key Set the length between LRL and URV in millimeter using Up and Down Keys Save the calibration values by pressing the Enter Key 10 10 10 10...

Page 28: ...vel Adjust the length shown on the LCD using the Up Down Keys so that it becomes the same as the actual length Save the setting by pressing the Enter Key 10 10 10 10 5 5 5 5 6 Damping Setting Mode 6 D...

Page 29: ...Up and Down Keys and then save the changes by pressing the Enter key 10 10 10 10 5 5 5 5 8 Density 8 Density 8 Density 8 Density of of of of the the the the Upper Fluid Upper Fluid Upper Fluid Upper...

Page 30: ...Up and Down Keys Save the setting by pressing the Enter key Density of the Lower Fluid 600 1500 Trim Ready Mode 10 10 10 10 5 5 5 5 10 4 10 4 10 4 10 4 Trim Mode Trim Mode Trim Mode Trim Mode Menu Men...

Page 31: ...using the Down key Set the current output to be exactly 20 using the Up and Down Keys Save the trimming value by pressing the Enter Key 10 10 10 10 5 5 5 5 12 12 12 12 U U U User ser ser ser U U U Uni...

Page 32: ...Value Setting Mode 100 User Unit Value Setting Mode 100 User Unit Value Setting Mode Menu Menu Menu Menu 13 100 User Unit Value Setting Mode 13 100 User Unit Value Setting Mode 13 100 User Unit Value...

Page 33: ...th ength ength ength Calibration Mode Calibration Mode Calibration Mode Calibration Mode in this manual The setting procedures must be finalized with the Enter Key to save the changes Ex 1 If the actu...

Page 34: ...e value is set to 0 and if not change it to 0 5 This mean the instrument output 4mA when the level is 0mm If the value would be set to 10 at Menu 01 the instrument will output 4mA when the level is 10...

Page 35: ...n 3 8 Check the PV reading Check if the applied PV is in the measuring range Check if the applied PV is in the nominal sensor range Check the displacer placement The signal output doesn t change at al...

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