about us

Development

    1992
  • OPEN
    1993
  • Generation 1 UQQ series AIR-DRIVE FLOAT TRANSMITTER& UQD series FLOAT TRANSMITER COME OUT AND START SERVICE
    1994
  • Generation 1 UTD ELECTRIC DISPLACER LEVEL TRNASMITTER COME OUT AND START SERVICE,WHICH IS GOUNDBREAKING INNOVATION FOR
    1995
  • DBLB ELCTRIC TARGET FLOW METER COME OUT AND START SERVICE
  • MEASUREMENT&CONTROL DIVISION ESTABLISHED FOR RESEARCH AND INVENTION OF GAS&WATER FLOW DEVICES
    1996
  • EFT ELECTRIC TARGET FLOW METER,ELF ELECTRIC DISPLACER LEVEL METER,UQZ MAGNETIC FLOAT TRANSMITTER START SERVICE
    1997
  • ISO9002-94 QUALITY MANAGEMENT START RUNNING IN DDTOP。
  • TD INTELLIGENT DISPLACER LEVEL TRANSMITTER JOINING PRODUCTION WITH FISHER START SERVICE。
  • UHC,UQC MAGNETIC FLOAT GAUGE,LG series RESTRICTION FLOW DEVICE,UQK,UTK series LEVEL CONTROLLER START SERVICE
    1998
  • ZBLB INTELLIGENT TARGET FLOW METER,ZTU INTELLIGENT DISPLACER LEVEL TRANSMITTER START SERVICE
    1999
  • LZZ METAL ROTOR FLOW METER START SERVICE
  • WATER FLOW CALIBRITION APPARATUS BUILT UP FOR CALIBRATING METAL ROTOR FLOW METER。
    2000
  • MTF SMART METAL TUBE VARIABLE AREA FLOW METER START SERVICE。
    2001
  • ON NOVEMBER ,ISO9001-2000 QUALITY MANAGEMENT START RUNNING IN DDTOP
    2002
  • START TO DEVELOP FLOAT LEVEL GAUGE FOR HEAVY PRESSURE AND HIGH TEMPERATURE
  • JONIT-DEVELOP HEAVY PRESSURE RESTRICTION FLOW DEVICE WITH LUOYANG PETRO&CHEMICAL DESIGN INSTITUTE
  • START RESEARCH OF ELECTRICOMAGNETIC FLOW METER
  • START TO DEVELOP MAGNET DRIVE PUMP WITH SUZHOU SCIENCE&TECHNOLOGY INSTITUE
    2003
  • ZBLB  SMART TARGET FLOW TRANSMITTER,AND ZUT SMART DISPLACER LEVEL TRANSMITTER WERE AWARDED SCIENCE AND NEW TECHNOLOGY PRIZE BY GOVERNMENT
  • PARTICIPATE HANOVERIAN MESSE FOR FIRST TIME
    2004
  • Research&develop isolating liquid filling apparatus
  • DEVELOP BUOY LEVEL GAUGE
  • UPGRADE PRODUCT FOR HIGH TEMPERATURE APPLICATION
  • Feasibility research of Guided wave radar level transmitter,and build up flow-rate lab
    2005
  • OUR DIRECTOR MR.ZHANG HANDI VISIT FISHER SINGAPORE、MALAYSIA FOR TECHNOLOGY COMMUNICATION
  • FEBRUARY,GOVERNMENT AWARD OUR VIRTEX FLOW METER AND ELECTROMAGNETIC FLOW METER WITH LEAD-EDGE TECHNOLOGY PRODUCT PRIZE
  • September 2005,government award DDTOP for GWFL guided wave radar level transmitter
    2006
  • DDTOP new comprehensive building completed,measures 4600 square meters
  • Develop integral orifice plate flow meter
  • Heat mass flow meter primary research
  • *** target flow meter primary research
  • Non-contact radar level transmitter primary research
    2007
  • Industry&commerce management bureau of Liaoning province award DDTOP with “FAMOUS MAKE OF LIAONING PROVINCE”
  • DDTOP was cleared to restructure DANDONG TOP ELECTRONIC INSTRUMENT (GROUP)CO., LTD ,donating DANDONG TOP PUMP CO.,LTD,DANDONG TOP MEASUREMENT&CONTROL CO., LTD,DANDONG DDTOP TECHNOLOGY&
  • Develop guided wave radar level transmitter for high temperature,heavy pressure use
  • Flexible tube target flow meter
  • V-shaped cone flow meter primary research
  • Targe flow meter,displacer level transmitter passed FF test,and DDTOP join FF
    2008
  • Dec 2008,DDTOP gains national high technology enterprise reputation in Dandong for the first batch,meanwhile declare and register in national high&new technology verification office
  • Join HART FUND as a member
  • Dec 2008,instruments sales quantity bits 10 million USD
  • Develop V cone flow meter
  • Develop flexible tube target flow meter for high temperature,heavy pressure use
  • Develop target flow meter for on-stream plug in/out function
  • Develop bus for HART,FF and PROFEBUS conformity
    2009
  • Join HART FUND as a membe
  • Develop global lead-edge displacer level transmitter
  • Develop long-range guided radar wave level transmitter
  • Joint develop non-contact radar level transmitter
  • Purchase 23026.2 sqm land for fresh&high technology control instrument production
    2010
  • Institute of Dandong TOP electronic instrument (group) co..ltd founded
  • Take part in calibration procedure construction for target flow meter
  • Develop global lead-edge displacer level transmitter
  • Dandong measurement&control co.,ltd move into Dandong instrument&indicator zone
    2011
  • Products sales quantity achieve 100 million
  • Pass verification of ISO14001:2004<ENVIRONMENT MANAGEMENT AUTHENTICATION> andQ/SY1002.1-2007<HEALTH,SATETY AND ENVIRONMENT AUTHENTICATION >
    2012
  • Hold large celebration 20th anniversary
  • Gain design patent of radar level meter for large tank
  • Full technology right of  DLT9000 displacer level transmitter gain science prize of Liaoning province
  • Target flow meter gain <national important product certificate>,smart displacer level transmitter gain<national torch program certificate>
    2013
  • PDM.CAPP proven project start
  • DLT9000 displacer level transmitter proved by ATEXIECEx of TUV
  • DDTOP is classified to class 3 of standard safe production enterprise
    2014
  • Look forward to prosperous future with you