The Sensus iPERL is a solid-state, static electromagnetic water meter for potable-water distribution in sizes DN15 to DN40. Unlike other solid-state meters it uses remnant magnetic field technology, giving a linear, drift-free measurement range down to very low flow rates and sustained R800 accuracy over an expected 15-year operational life. With integrated low-power radio it supports walk-by/drive-by reading and can later migrate to a Sensus FlexNet fixed AMI network without revisiting the meter, helping utilities cut non-revenue water.

Features & Specifications

• No moving parts — magnetic-inductive measuring principle for long-term stability and no mechanical wear

• Sustained R800 metrology (Q3/Q1 = 800) with constant accuracy over life; automatic flow-direction detection

• Nominal sizes DN15–DN40; permanent flowrate Q3 from 2.5 to 16 m³/h

• Water pressure up to 16 bar; water-temperature range +0.1 °C to +50 °C (+70 °C special variant)

• Operating ambient range +60 °C down to −15 °C (with minimum 100 l/h flow to prevent freezing); water conductivity down to 120 µS/cm

• Can be installed in any orientation without straight upstream/downstream pipe leads

• MID (2014/32/EU) EC design-examination, EN 14154:2005+A2:2011, OIML R49:2013 and ISO 4064:2014; drinking-water approvals KTW/DVGW, ACS, WRAS, KIWA

• Integrated 868 MHz or 433 MHz radio; OMS-certified broadcast; data log up to 2880 points plus alarms

• Certified to ISO 9001 quality management

Dimensions & Technical Data

Dimensional diagram and dimensions table (DN15–DN40):

Measuring-accuracy and pressure-loss curves, measuring principle, flow-rate data and approvals: