SJWM-13C-25C Modular Plastic Single Jet Water Meter

DN15

DN20

DN25

Q4 (Qoverload) m³/h

3. 125

3. 125

5

5

7.875

7.875

Q3 (Qmax/permanent) m³/h

2.5

2.5

4

4

6.3

6.3

Q2 (Qtransitional) m³/h

0.05

0.025

0.08

0.04

0.126

0.063

Q1 (Qmin) m³/h

0.03125

0.015625

0.05

0.025

0.07875

0.039375

Start Flow Rate m³/h

0.01

0.005

0.014

0.007

0.02

0.012

Dynamic Range

R80

R160

R80

R160

R80

R160

Min Reading(m³)

0.0001

Max Reading(m³)

99,999

Accuracy Class

Class B, Class C, Class 2 ( R80, R100, R160 )

Standard

ISO4064 / OIML R49

Measured Medium

Water

Maximum Permissible Error For The Lower Flow Rate Zone

±5%

Maximum Permissible Error For The Upper Flow Rate Zone

±2% for water having a temperature <30°C
±3% for water having a temperature > 30°C

Operating Temperature

-10°C~55°C

Accidental Temperature

-20°C~55°C

Max Loss(∆P)

Δp63

Max Pressure(MAP)

MAP16

Environmental Classification

Class B

Protection Class

IP68

Material

Composite plastic

The Installation Senstivity

U0/D0

Climatic and Mechanical
Environmental Grades

M1

Communication

Optical Port, M-BUS, RS-485, Pulse output, LoRa RF, LoRaWAN, NB-IoT, 4G (CAT 1)

Installation Direction

Horizontal

Power Source

Lithium batteries

Module Battery Lifetime

10-15 years

Historical Storage Data

1080 hours, 180 days, 24 months