Ultrasonic Water Meter (model DJWM85 or SextoTM)
If you are looking for a high tech alternative for conventional metering then our DJWM85 or SextoTM meter is a very good choice. This meter is an Ultrasonic Water Meter without integrated valve but with all benefits of ultrasonic metering with latest technology. AMR or Automatic Meter Reading is possible via several ways i.e. LoRa, LoRaWAN, GPRS and NB-IoT. Of course this meter also has an optical port which you can use for reading out metering data.
Introduction
The DJWM85 or SextoTM, which means "Sixth" translated in English language, is an advanced and highly accurate, up to R400, anti- destruction ultrasonic water meter and data end-point for residential applications. With no moving parts the DJWM85/SextoTM is highly reliable with long lasting precision. With its robust fully-wrapped design, Ingress IP68 rated design and high dynamic range, the DJWM85/SextoTM is the best solution for residential and Non Revenue Water applications. DJWM85/SextoTM is fully IoT Ready with NB-Iot, LoRa Private Network, LoRaWAN, Sigfox, GPRS or WM-Bus. This makes it easy for you to implement this meter in your own AMR/AMI system.
High PerformanceDJWM85/SextoTM measures water flow 4 times per second and has intelligent correction technology, for instance temperature correction. DJWM85/SextoTM is measuring with high accuracy and high stability. The DJWM85/SextoTM ultrasonic technology leverages TagMeter's years of experience in ultrasonic water meters.
|
 |
3 options of Battery Life Span and Replaceable Battery
|
|
DJWM85/SextoTM is equipped with 2 batteries: one for the ultrasonic metering and the other one for the wireless communication module. When using the LoRa communication module you can have Realtime and On Demand Ultrasonic Metering and the meter sends every 2 hours autonomous an AMR/AMI Data Packet. Other communication modules are more like periodic transceiver modules (sending and receiving data) with less frequent Data Packet transmission. |
Optimum Antenna DesignDJWM85/SextoTM's antenna is a vertical omnidirectional polarization antenna. Printed Circuit Board, Electronics and Antenna perfectly match to ensure the meter is having an optimum signal. The meter sends data over a long distance with a good signal coverage. |
 |
IP68 DesignThe body of DJWM85/SextoTM is made of a Polyphenylene Sulfide (PPS), a high- performance engineering thermoplastic composite, characterized by an unusual combination of properties: Exceptional Mechanical Strength, High Temperature Resistance, Dimensional Stability, Inherent Flame Resistance, Good Chemical Resistance and Electrical Insulation Properties. These assets make Polyphenylene Sulfide a chosen alternative to metals & thermosets for use in automotive parts, appliances, electronics and several others applications. Even though PPS's moisture absorption is very low, water molecules in extreme condition could pass through. That is also the reason why we took precautions to protect electronics, antenna, batteries and motorized valve against these extreme conditions.
|
 |
 |
The Solution for addressing NRWWith its highly accurate calculation and intelligent error correction technology the DJWM85/SextoTM is a powerful solution for addressing Non Revenue Water or NRW. A water leak or pipe burst is reported to your AMR/AMI system, therefore improving customer's awareness and satisfaction and increasing revenue with automatic registration of previously unmetered water. |
Data End PointThe DJWM85/SextoTM data collection and logging capability provides a high resolution detailed local consumption profile and helps utilities inform customers on unusual consumption patterns or events. This promotes customer engagement and resource awareness. Multiple settable alarms and events include Leaks, Backflow, Blank Pipe and Pipe Bursts are available.The non-volatile flash memory ensures no data loss even when there is no battery power any more. |
 |
IoT or Internet of Things
The DJWM85/SextoTM is a data collection end-point device coupled with a LPWAN communication module, providing the foundation for a reliable and scalable AMR/AMI network such as LoRa Private Network, LoRaWAN, Sigfox, GPRS, NB-IoT and Wireless M-Bus.
Special about DJWM85/SextoTM and the TagMeter Systems Design is that the LoRa Private Network incorporates Metering in Realtime, On Demand and autonomous every 2 hours. A GPRS or LoRaWAN meter sends the data packets less regular.
Digital Display
Technical Data
Standards
|
Ways of Communication
|
||||||||||
Technical Specifications
|
|
Dimensions
| Model | DJWM85_15 Sexto15 |
DJWM85_20 Sexto20 |
DJWM85_25 Sexto25 |
DJWM85_32 Sexto32 |
DJWM85_40 Sexto40 |
| Size | DN15 (½") | DN20 (¾") | DN25 (1") | DN32 (1¼") | DN40 (1½") |
| L - Length (mm) | 165 | 195 | 225 | 180 | 200 |
| l - Length (mm) | 111.9 | 111.9 | 111.9 | 111.9 | 111.9 |
| H - Overall Height (mm) | 125 | 125 | 125 | 135 | 145 |
| h - Height above axis (mm) | 105 | 105 | 105 | 105 | 105 |
| W - Width (mm) | 93.6 | 93.6 | 93.6 | 93.6 | 93.6 |
| Weight (kg) | 0.85 | 1.10 | 1.25 | 1.95 | 2.15 |
| Thread | BSP | ||||
Flow Rate Performance
| Model | Q3 (m3/h) | Q1 (L/h) | R (Q3/Q1) | Q2 (L/h) | Δp |
| Sexto15 | 2.5 | 15.6 / 12.5 / 10 / 8 / 6.25 | 160 / 200 / 250 / 315 / 400 | 10 | 0.25 |
| Sexto20 | 4.0 | 25 / 20 / 16 / 12.7 / 10 | 160 / 200 / 250 / 315 / 400 | 20 | 0.25 |
| Sexto25 | 6.3 | 39.4 / 31.5 / 25.2 / 20 / 15.7 | 160 / 200 / 250 / 315 / 400 | 25 | 0.25 |
| Sexto32 | 10 | 62.5 / 50 / 40 / 31.7 / 25 | 160 / 200 / 250 / 315 / 400 | 40 | 0.25 |
| Sexto40 | 16 | 100 / 80 / 64 / 50 / 40 | 160 / 200 / 250 / 315 / 400 | 64 | 0.25 |
 |
 |
 |
 |
 |
Download Brochure DJWM85 TagMeter Sexto Ultrasonic Water Meter |
