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TILLQUIST LQT400, User Manual

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TILLQUIST LQT400 User Manual Download Page 2

 

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Thank you for choosing LQT400 from Hugo Tillquist AB! 

The LQT400 is a 3-phase multi-transducer with 2 analog outputs that can 
be configured to measure any electrical quantity. All areas for AC current 
and voltage (True RMS) are covered by one single unit.  

Our  free  transducer  configuration 

software  “ConfigLQT” 

can  be  used  to 

easily configure the LQT400 via its USB-port.  

 

Summary of Contents for LQT400

Page 1: ...Manual LQT400 Rev EN2020 11 04 USER MANUAL LQT400 HUGO TILLQUIST AB Box 1120 SE 164 22 KISTA Sweden Tel 46 8 594 632 00 info tillquist com www tillquist com...

Page 2: ...i transducer with 2 analog outputs that can be configured to measure any electrical quantity All areas for AC current and voltage True RMS are covered by one single unit Our free transducer configurat...

Page 3: ...s 3 2 7 Symbols on the appliance 3 2 8 Installation of ConfigLQT 3 3 Configuration 4 3 1 Connection to computer 4 3 1 1 Monitored parameters 5 3 2 Input settings 5 3 2 1 System connection 6 3 3 Analog...

Page 4: ...x In continuously 10 x In 15 s 40 x In 1 s Consumption 0 05 VA phase AUX Supply Universal current 24 2W 253VDC 3W 5 80 4VA 253VAC 5VA 50 60 Hz 5 Outputs Analog Quantity 2 pcs Range 20 mA Load max 750...

Page 5: ...positioned easy to reach and marked as a switch for the transducer The measuring circuits from the current transformers must be short circuited before disconnection The unit must be protected against...

Page 6: ...uations 2 8 Installation of ConfigLQT The installation kit consists of the configuration software and a driver for the USB connection to LQT400 NET Framework version 4 0 is a software from Microsoft u...

Page 7: ...ection is established Various basic parameters of the transducer as well as the measured values are displayed on the screen when the transducer is connected to a measuring object The measured values c...

Page 8: ...se angle F Frequency 3 2 Input settings Read configuration Read present settings from LQT400 to ConfigLQT Apply configuration Save data to LQT400 Configuration using choose which values will be shown...

Page 9: ...mmetrical load 01 1 phase 1 system 02 3 phase 1 system 3 phase symmetrical load 03 3 phase 1 system 3 phase symmetrical load 04 3 phase 1 system 3 phase symmetrical load 05 3 phase 1 system 3 phase sy...

Page 10: ...d X X PI1U23 QI1U23 I1 U23 3 04 3 wires 3 phase symmetrical load X X PI1U31 QI1U32 I1 U31 3 05 3 wires 3 phase symmetrical load X X X X X X X I1 P1 3 Q1 3 S1 3 09 3 wires 3 phase asymmetrical load X X...

Page 11: ...alues are to be written in the first space any breakpoints afterwards and the end value at last Under Output Value the corresponding values of the output signal are indicated Click Apply configuration...

Page 12: ...OS 3 P3 S3 L3 QF Reactive power factor Q S System QF1 Reactive power factor SIN 1 Q1 S1 L1 QF2 Reactive power factor SIN 2 Q2 S2 L2 QF3 Reactive power factor SIN 3 Q3 S3 L3 LF LF factor sign Q 1 PF Sy...

Page 13: ...condary Analog out 0 0 5 20 P Measuring total power IN 50 MW OUT 20 mA Primary Analog out 50000 20 50000 20 Q Measuring total power IN 28 MVar OUT 20 mA Primary Analog out 28000 20 28000 20 U12 Measur...

Page 14: ...nloaded to other transducers 3 4 1 Save a configuration to a file 1 Select File menu and click Save as 2 Write a file name and choose a desired folder 3 Click Save 3 4 2 Open a configuration from a sa...

Page 15: ...able 1 Start ConfigLQT 2 Select Firmware Upgrade from Transducer menu 3 Choose the file with the new firmware and Upgrade 4 When the upgrade is done the auxiliary voltage must be disconnected so that...

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