Overview
HM-1 features compact dimensions and is designed to measure heating and cooling energy. It is suitable for heat energy measurement in individual apartments. Powered by batteries, HM-1 consists of a flowmeter and two temperature sensors, through which it calculates precise energy consumption. Standard installation on the return pipe is supported.
Features
·Accuracy
This heat meter features a 100:1 dynamic range (qp:qi) and nominal flow of 1.5–10 m³/h, enabling full-range consumption measurement and lower energy loss.
·Temperature Range
Its wide temperature range suits all distribution network locations, requiring only one meter type for substations, industrial sites and residences.
·Remote Reading
Comes with integrated communication that allows for safe and easy remote reading via either cable or network. The flexible connectivity options include NB-IoT, Cat1, LoRa, LoRaWAN, RS485, M-Bus, M-Bus wireless.
·Battery Life
Powered from a lithium battery. Depending on use and setup, the lifetime is up to 10 years.
·Data Package
HM-1 offers a variety of data packages to transmit to your utility. Choose the right data package to suit your needs when ordering the meter and reconfigure it at a later point in time if needs change.
·Price-friendly
Our vertically integrated, in-house manufacturing enables us to offer significant price advantages without compromising quality. We also provide flexible OEM and ODM services to meet your specific product requirements.
Dimensions
| Nominal Diameter | Length L (mm) | Width W (mm) | Height H (mm) | Thread Diameter D(mm) |
| DN15 | 110 | 83.8 | 78 | G3/4"B |
| DN20 | 130 | 83.8 | 84 | G1"B |
| DN25 | 160 | 83.8 | 89 | G1 1/4"B |
| DN32 | 180 | 83.8 | 94 | G1 1/2"B |
| DN40 | 200 | 83.8 | 102 | G2"B |
Meter Sizes
| Performance | Parameters(R50) | ||
| Nominal Diameter | Minimum Flow Rate Qi(m³/h) | Common Flow Rate Qp (m³/h) | Maximum Flow Rate Qs (m³/h) |
| DN15 | 0.03 | 1.5 | 3 |
| DN20 | 0.05 | 2.5 | 5 |
| DN25 | 0.07 | 3.5 | 7 |
| DN32 | 0.12 | 6 | 12 |
| DN40 | 0.2 | 10 | 20 |
Technical Data
| Measured Medium | Domestic water (other liquids require customization) and must fill the pipe |
| Nominal Diameter | DN15～DN40 |
| Qp/Qi | R50/R100 |
| Accuracy Class | 2 |
| Power Supply | DC3.6V lithium battery |
| Operating Pressure | 16bar |
| Environment Class | A |
| Temperature Difference Measurement Range | 4°C～95°C |
| Temperature Difference Range | 2K～75K |
| Pressure Loss | △P25 |
| Heat Consumption Calculation | Starting from 1K |
| Temperature Resolution | 0.01°C |
| Electromagnetic Ambient Condition | E1 (optional E2 level) |
| Maximum Water Volume Reading (m³) | 999999.99 |
| Maximum Heat Reading (Kw·H) | 99999999 |
| Battery Life | ＞10 years |
| Temperature Sensor | PT1000 platinum resistor |
| Pipe Material | Brass/Stainless steel |
| Communication Method | Infrared/M-Bus/RS485/LoRa/LoRaWAN/NB-IoT/Cat1/TTL, etc. |
| Protection Class | IP65/IP68 |
| Installation Method | Arbitrary angle |
