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Keypad STS Token Prepayment Water Meter GSM remote chargable & anti-tamper

EEDWP is a digital STS token prepayment water meter. The end user need purchase water credit from the supplier in advance to get the 20 digital TOKEN, after entering the token into prepayment meter by keypad on the water meter for charging the credit. Except the manually keypad input, we also offer more convenient wireless charging and control through GSM/GPRS and LORA/RF tehnology.
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STS Keypad Prepaid Water Meter GSM remote chargable / anti-tamper - Code "EEDWP"

anti-tamper prepaid water meter 11

water meter diagram

prepaid water meter system

Engelec meterwizard water vending platform

General Description

STS Keypad Prepaid Water Meter-Remote chargable and Anti-tamper

The prepaid water meter EEDWP is developed based on the newest STS prepayment algorithm (IEC62055-41 international standard), can shut off the water supply automatically if the recharged credit be used up. The mechanical water meter body is made of high-quality non-toxic plastic (Brass body on request) for corrosion resistance and anti-thief.



Main Specification

Nominal in-line size
DN mm 15 20 25

Maximum flow rate

Q4

m3/h

3.125

5.0

7.875

Ratio “R”

Q3/Q1

   /

80

80

80

Permanent l flow rate

Q33

m3/h

2.5

4.0

6.3

Transitional flow rate

Q22

m3/h

0.05

0.08

0.126

Minimum flow rate

Q11

m3/h

0.031

0.05

0.0787

Minimum reading

  m3

0.0005

0.0005

0.0005

Maximum reading

  m3

99999

99999

99999


Maximum Permission Error (MPE)

Q1≦Q≦,Q2    MPE =+ 5%           

Q2≦Q≦Q4,    MPE= + 2% (For hot water metering, MPE=+ 3%)


Dimensions and diagram


Nominal size

Length

Width

Height

Thread


mm mm mm

   D

DN15

165

101

124

G3/4B

DN20

195

101

124

G1B

DN25

225

101

124

G5/4B


Application

water meter11

water meter 12


water meter 13

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