HRI-Mei
Product categories
Water
High-resolution impulse generator for Meistream and Meistream Plus with standard pulser register
Water
Drinking Water
Smart City
Your benefits
- Load-free inductive scanning of the meter’s pointer:
No influence on measuring behaviour - Can be retrofitted without damaging the calibration seal:
Easy and fast on-site installation - Electronic pulse generator:
No pulse bouncing
Applications
- Pulse recording for Meistream series bulk water meters with standard pulser register
- Industrial control applications with the FM-1D/K or FM-2D/K
- Control and regulation functions using control system or PLC
Downloads
Properties
- Robust design
- Register is prepared for HRI-Mei recording
- Self-diagnostics
- Battery service life longer than 10 years
- Hermetically sealed body (IP 68)
- Flow direction detection
- Cable length 3 m
Pulse output mode
The HRI-Mei supports 3 different pulse output modes via 2 cables
| Mode B4 (Standard) | Used only for pulse collectors with uses one pulse input | l1: Balanced pulses 1) |
| l2: Error status 2) | ||
| Mode B3 | l1: Forward / backward pulses | |
| l2: Flow direction signal | ||
| Mode B2 | l1: Forward pulses | |
| l2: Backward pulses |
1) Backward pulses are balanced by suppressing an identical number of forward pulses.
2) The output l2 is normally closed. The status signal changes if an internal error (processor) is detected in the HRI-Mei.
Circuit diagram
Pulse output
| Pulse value output | 1, 10, 100 or 1000 litre /pulse |
| Pulse width | 32 ms |
| Umax | 48 VDC |
| Umin | 3 VDC |
| Imax | 0,2 A |
| Pmax | 4 W |
Pulse value output
| Meter sizes | DN 40...125 1 Pulse = ... litre | DN 150...300 1 Pulse = ... litre |
|---|---|---|
| Meistream, Meistream Plus, Meitwin-Hauptzähler and WPV-MS-Hauptzähler | 10 100 | 100 1000 |
| Meitwin-Nebenzähler | 1 10 | - |
| WPV-MS-Nebenzähler | - | 10 100 |
Temperature range
| Operation | -10...+60°C |