High-resolution pulse generator
HRI
Product categories
Water
High-resolution pulse generator for Meistream and Meistream Plus with 
Conformity and GWFcoder® register
Water
Drinking Water
System technology
Wired
Impulse
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 Conformity (MID) and GWFcoder® 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 recording
- Self-diagnostics
- Battery service life longer than 10 years
- Hermetically sealed body (IP68)
- Flow direction detection
- Cable length 5 m
Product information
Pulse output mode
The HRI supports 2 different pulse output modes via 2 cables
| Mode B4 (Standard) | Used only for pulse collectors with uses one pulse input | I1: Balanced pulses1) I2: Error status2) |
| Mode B2 | I1: Forward pulses I2: Backward pulses |
1) Backward pulses are balanced by suppressing an identical number of forward pulses.
2) The output I2 is normally closed. The status signal changes if an internal error (processor) is detected in the HRI.
Circuit diagram
Pulse output
| Pulse value output | 100, 1000 or 10000 litre /pulse |
| Pulse width | 124 ms |
| Max. output frequency | 5 Hz |
| Umax | 24 V DC |
| Umin | 3 V DC |
| Imax | 0,02 A |
| Pmax | 0,48 W |
| Storage backward pulses | 1’000’000 |
Pulse value output
| Meter sizes | DN 40...125 1 Pulse = …Liter |
DN 150...300 1 Pulse = …Liter |
|---|---|---|
| Meistream and Meistream Plus | 100 1000 | 1000 10000 |
Temperature range
| Storage | -20 to + 65 °C |
| Operation | -10 to + 65 °C |