IMP Lite Pulsar Level Measurement

Introduction

IMP Lite Pulsar Level Measurement can be used wherever you need reliable non-contacting ultrasonic level measurement and digital echo processing means IMP Lite is perfect for slurries or liquids and anywhere you need a display telling you the level, or an analogue output to interface with your site control system or drive a display. The full IMP range is available with the wetted parts in PVDF build alternative for corrosive or aggressive applications.

IMP Lite Pulsar Level Measurement Features

2-wire configuration
RJ11 Port
Up to 10m range available

Compact and low-profile

When used on battery power for intermittent (wake-up) applications, IMP Lite’s high speed boot up of circa 3 seconds maximises battery life. For example, if an IMP Lite were switched on every 15 minutes for a 3 second reading, average current is a mere 40µA.

Active and passive (sourcing and sinking) analogue outputs assist with system integration, especially when retro-fitting into older installations.

IMP Lite Pulsar Level Measurement Specifications

Physical

Dimensions:	175mm (6.9in) overall height x 130mm (5.12in) diameter
Cable Entry:	2 off 16mm (0.63in) cable glands 3.5-10mm (0.14-0.39in) cable dia
Mounting:	1.5” (3m/10ft) and 6m/20ft) range versions), 2” (10m/33ft version) universal thread – suits BSP and NPT, parallel and tapered
Weight:	Approximately 1kg (2.2lbs)

Environmental

Temp. range (process):	-40ºC to +80ºC (-40ºF to +176ºF)
Temp. range (ambient):	-20ºC to +65ºC (-4ºF to +149ºF)
IP Rating:	IP67

Variants

IMP3
Beam Angle (-3dB half power):	<10º inclusive
Operating Frequency:	125kHz
Measurement Range:	0.2-3m (0.66ft-10ft)
IMP6
Beam Angle (-3dB half power):	<10º inclusive
Operating Frequency:	75kHz
Measurement Range:	0.3m-6m (0.98ft – 20ft)
IMP10
Beam Angle (-3dB half power):	<10º inclusive
Operating Frequency:	41kHz
Measurement Range:	0.3m-10m (0.98ft-33ft)

Performance

Input Voltage:	11-30V, 3.5 – 22mA
Accuracy:	±0.25% or 6mm/0.24in (whichever is greater)
Resolution:	± 0.1% or 2mm/0.08in (whichever is greater)
4-20mA Outputs:	Resolution 5µA (both active and passive outputs)
Temperature Compensation:	Via internal temperature sensor (±0.5ºC accuracy). Level and volume conversion are installed allowing linearisation for tank shapes
2-wire Configuration:	RS232 (RJ11 port) connection for diagnostics and software updates
	4 digit LCD display
	4 button keypad for parameter entry
	Power consumption: 3.5 – 22mA
	Passive 4-20mA output
	No flammable atmosphere approval
PC Interface-PC Suite:	All parameters can be accessed and changed through PC Suite software. Echo traces may be viewed on screen.