Speedy Pulsar Contacting doppler flow velocity sensorIndonesia Industrial Parts

Description

Speedy is a steamlined, easy to fit liquid velocity sensor for use in channels, pipes or sections where no Primary Measurement Device (PMD) exists.

Pulsar’s Speedy velocity sensor communicates digitally and is designed to connect to Pulsar’s FlowCERT open channel flow monitor via FlowCERT’s on-board RS485, it provides the velocity measurement for velocity x head calculations of flow rate where no primary measurement device exists. Speedy can be mounted up to 250m from the FlowCERT controller. Speedy is available as a “wedge” sensor with a stainless steel base plate or as a pipe mounted sensor.

Speedy operates with one of the following Pulsar controllers:

- Velocity Interface
  2 relays
  1x 4-20mA output
- FlowCERT
  5 relays
  2x 4-20mA outputs
  Requires a Pulsar transducer
- Ultimate
  8 relays standard (expandable)
  2x 4-20mA outputs standard (expandable)
  Two channel system (expandable
  Requires a level transducer

Features

Streamlined, easy to fit sensor
In channels, pipes where no PMD is fitted
Wedge base mount or pipe mount option
Reliable proven and easy set up

Technical Specification

Physical

Constructions:	Wedge sensor: installation on channel bottom
Constructions:	Pipe sensor: installation using nozzle and cutting ring joint in pipes
Construction material/description:	Wedge sensor: Polyurethane, stainless steel 1.4571, PVDF
Construction material/description:	PA pipe sensor: stainless steel 1.4571, polyurethane, FEP coated cable
Sensor body weight:	Nominal 1.5kg (3.3lbs)
Cable length:	Up to 50m (164ft)
Cable types:	LiC11Y 2×1.5 + 1x2x0.34
Cable diameter:	8.4mm ± 0.25mm (0.33in ± 0.01in)

Environmental

IP rating:	IP68
Operating temperature:	-20°C to +50°C (-4°F to +122°F)
Storage temperature:	-30°C to +70°C (-22°F to +158°F)
Operating pressure:	Max. 4bar (58psi)

Performance

Accuracy/Repeability:	1% of the measured range or ±0.03m/s (±0.1ft/s)
Resolution:	3mm/sec
Measurement range:	-6m/s to +6m/s (-20ft/s to +20ft/s)
Measurement principle:	Doppler (flow velocity). Flow velocity sensor with v measurement using Doppler principle and temperature measurement to compensate temperature effects on speed of sound.
Measurement frequency:	1MHz
Zero point drift:	0 – absolutely stable zero point
Sonic lobe:	±5 degrees
Temperature measurement:	-20ºC to +60ºC ±0.5ºC (-4°F to +140°F ± 32.9°F)