The KROHNE H250 M40 manual provides specifications, installation, and operation details for the metal‑tube float flowmeter.
This manual describes the H250 M40 metal‑tube float flowmeter, highlighting its robust construction for high‑temperature and high‑pressure media, modular design, and multiple signal output options such as 4‑20 mA, HART, FF‑bus and Profibus‑PA. It includes information on the working principle, advantages, certifications, and special design features.
The document also covers technical parameters, housing materials, environmental temperature ranges, electrical connections, grounding, and protection ratings. Detailed tables list flow ranges for water and gas, pressure classes, and connector specifications, while sections on configuration and safety provide guidance for installation and maintenance. This manual is written in Chinese.
| Water flow range | 25‑100,000 L/h (20 °C) |
|---|---|
| Pressure rating (standard) | PN4.0 MPa |
| Signal output options | 4‑20 mA, HART, FF‑bus, Profibus‑PA |
| IP protection rating | IP66/68 |
| Operating temperature range (non‑explosive) | -196 °C … +300 °C |
The H250 M40 can measure water flow from 25 L/h up to 100,000 L/h at 20 °C.
It supports 4‑20 mA current output, HART communication, FF‑bus, and Profibus‑PA.
The housing is rated IP66/68.