Greyline Portaflow PT400, Руководство пользователя

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1: General Description
1.1 Introduction
This manual describes the operation of the Greyline Portaflow PT400 portable flowmeter. The flowmeter is
designed to work with clamp-on transducers to enable the flow of a liquid within a closed pipe to be measured
accurately without needing to insert any mechanical parts through the pipe wall or protrude into the flow system.
Using ultrasonic transit time techniques, the Portaflow PT400 is controlled by a micro-processor system which
contains a wide range of data that enables it to be used with pipes with an outside diameter ranging from 13mm
up to 1000mm and constructed of almost any material. The instrument will also operate over a wide range of fluid
temperatures.
The PT400 series comprises two models which are identical in operation but designed to be used with a different
range of pipe diameters. The PT400 can be used with pipes in the range 13mm – 115mm and the PT500 with
pipes in the range 50mm – 1000mm.
Easy to operate, the Portaflow PT400 standard features are:
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Large, easy to read graphic display with backlighting
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Simple to follow dual function keypad
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Simple ‘Quick Start’ set up procedure
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Continuous signal monitoring
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Pulse output
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4-20mA, 0-20mA or 0-16mA output
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Rechargeable battery
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Battery management
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Diagnostics
Volumetric flow rates are displayed in l/h, l/min, l/sec, gal/min, gal/h, USgals/min, USgals/h, Barrel/h, Barrel/day,
m³/s, m³/min, m³/h. Linear velocity is displayed in metres or feet per second.
When operating in the ‘Flow Reading’ mode the total volumes, both positive and negative, are displayed up to a
maximum 12-digit number.
The flowmeter can be used to measure clean liquids or oils that have less than 3% by volume of particulate
content. Cloudy liquids such as river water and effluent can be measured along with cleaner liquids such as
demineralised water.
Typical Portaflow PT400 applications include:
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River water
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Seawater
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Potable water
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Demineralised water
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Treated water