DIEHL DN 15-40 Hydrus Ultrasonic Cold and Hot Water Meter Installation Guide
- June 3, 2024
- DIEHL
Table of Contents
DIEHL DN 15-40 Hydrus Ultrasonic Cold and Hot Water Meter Installation
Guide
The data generated by the meter can be viewed in the display loop with system information (e.g. flow rate, volume, date, due date, medium temperature). The loops are numbered from 01 to 09. The optical button located on the front panel enables scrolling the display loops. To save battery lifetime, the meter switches automatically to power save mode after 4 minutes of inactivity. The display is awakened again by pressing the optical button. After awakening, the display shows first a screen check (i.e. all symbols in the display are briefly switched on and off) and then the total volume. This remains for at least 10 seconds on the display (also when the optical button is pressed). Afterwards the display loop can be switched with the help of the optical button.
Display loop
- Displaytest
- Total volume
- Battery lifetime
- Firmware version / Checksum
- Current flow
- Error / Alarms
- High resolution total volume
- Due date / Due date volume
- Reverse volume
- Conformity label
- Year of the declaration of conformity
- Type of examinaiton certificate number
- Meter serial number & QR code
- Optical button
- Positioning assistance for opto head
- Pressure loss class
- Maximum admissible pressure
- Metrological class
- Protection class
- Temperature class
- Product article number
- Communication interfaces
- Battery lifetime
- Dynamic range
- Nominal diameter
- Permanent flow rate
- Type
Pulse outputs (open drain)
Input voltage max. 30 V
Input current max. 27 mA
Voltage drop at the active output max. 2 V / 27 mA
Current through inactive output max. 5 μA / 30 V
Reverse current max. 27 mA
Pulse duration, pulse break, pulse frequenc
depending on device configuration (detailed description on request)
Wiring diagram
The pulse outputs are open-drain circuits. The drain branch has a resistance of just 0 ohm, i.e. there is no internal current limiting. If required, this must be provided by an external protective resistance (*if not available on site). The internal resistance of the switching device must be 5x of the protective resistance.
Cable pin assignment
The Radio/L-Bus/Pulse, Pulse/Pulse and M-Bus/Pulse/Pulse versions of the meter are supplied with a 1.5 m 2/3/4/5-wire connecting cable with wire end ferrules.
| Radio/ L-Bus/ Pulse| Pulse/ Pulse| M-Bus/ Pulse/ Pulse|
M-Bus| 4-Wire
Pulse
---|---|---|---|---|---
M-Bus| | | x| x|
Pulse, Output 1| | x| x| | x
Pulse, Output 2| x| x| x| | x
L-Bus| x| | | |
Connection (network name)| | | | |
GND| brown| brown| brown| | brown
Pulse 1 or L-Bus| yellow| yellow| yellow| | white
Pulse 2| green| green| green| | yellow
M-Bus 1| | | white| white|
M-Bus 2| | | blue| blue|
Manipulation /
Tampering| | | | | green
Number of Wires| 3| 3| 5| 2| 4
Never connect the external M-Bus
to the pulse output of the meter! It will destroy the pulse output and lead to
the loss of all factory warranty claims.
Radio specifications
Sending intervals Every 14 … 256 seconds (variable, according to 0.1 duty cycle (min. 14 seconds); depending on protocol length and programming)
434 MHz frequency band Transmission power (EN 300 220-2 V3.2.1): 10 mW e.r.p.
868 MHz frequency band Transmission power (EN 300 220-2 V3.2.1): 25 mW e.r.p
Venting
In the event that complete
venting of the meter is not possible, please install the meter at an angle of
45°!
Open Source Software Notice
This product contains open source software components. The use and distribution of any open source software is governed by respective terms and conditions of the applicable open source license. By using this product, you acknowledge that you have reviewed such license terms and notices, and you agree to be obliged by these terms. Please insure that you get yourself familiar with the licenses terms and conditions before using this product. The complete license terms are available in the DIEHL Metering Download-center: https://www.diehl.com/metering/en/support-center/download-center/ If you have any questions regarding open source software used in this product, please contact DIEHL Metering support: oss-dmde@diehl.com
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