Summary of Contents for Trimec DUALPULSE 490
- Page 1 DUALPULSE BI-DIRECTIONAL INSERTION FLOW TRANSDUCER INS TRUCTION MANUAL DUALPULSE LOCK IMDP000-3310...
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Page 2: Installation
Contents General arrangement CONTENTS PAGE Thank you for purchasing a Dualpulse Flowmeter. It is important that you read this manual to gain a full understanding of the capability and operational aspects of the INTRODUCTION equipment you are about to install. General arrangement Overview This information is provided only to assist in the installation of the product and... -
Page 3: General Arrangement
Introduction Introduction Overview Dualpulse insertion flow transducers provide a cost effective and simple means of measuring the flow of a wide range of low viscosity liquids. Installation is quick and General arrangement inexpensive for pipe diameters ranging from 40mm to 900mm (1.5-36") and up to 2500mm (100") nominal bore for the Hot tap capable model DP525. - Page 4 Installation Installation 2.3 Height adjustment calculation Calculate the adjustment height A for DP490 (or AA for the DP525) as follows: 2.1 Meter location Choose an appropriate section of horizontal or vertical pipe as per the guidelines below. A ( for DP490 ) = 175mm ( 6.9") - ( B + C + D ) With vertical pipe installations the media should be pumped up through the pipe past the AA ( for DP525 ) = 420mm (16.5") - ( B + C + D ) flow sensor so that any entrained air will pass freely.
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Page 5: Electrical Connections
Installation Electrical connections ELECTRI CAL CONNECTIONS ( see page 9 for QP outputs ) 2.5 Hot tap installation IMPORTANT ( model DP525 ) Before removing the 3.1 Standard outputs DP525 from the installation first Conductor c olor coding also applies to the N on-magnetic sensor and high temper ature output options withdraw the Clean &... -
Page 6: Bi-Directional Flow
Electrical connections Electrical connections 3.3 Instrument cable installation requirements 3.5 Quadrature outputs Use twisted multi-core low capacitance shielded instrument cable (22 AWG ~ 7x 0.3 DP series flowmeters supplied with the QP option produce two NPN open collector pulse stranded) for electrical connection between the flow meter and the remote instrumentation. outputs from two Hall Effect sensors. - Page 7 Electrical connections Calibration 11 3.7 Voltage Pulse Connection to family instruments K – FACTORS ( calib ration factors for meter ) The K-factor (pulses / litre, gallon etc.) will vary in relation to the bore size of the pipe in Note: For other output styles see which the Dualpulse is installed.
- Page 8 Calibration Calibration 4.3 Calculating K-factors ( litres or m³ ) 4.4 Calculating K-factors ( US gallons ) 24.5 Pipe ID 450mm & above (A) = 22.5 23.5 Pipe ID 19.5 ” & above (A) = 6.86 example a 22.5 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 440 460 pipe ID (inches) pipe ID...
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