Quick installation guide for the TH990 series ultrasonic flowmeter water meter, covering parts, wiring, setup, calibration and menu overview.
The guide introduces the TH990 series ultrasonic flowmeter water meter, describing its components, LCD indicators, and available communication interfaces such as RS485, M‑BUS, DC 5 V, 4‑20 mA, OCT1, C1 and C2. It also explains the touch‑screen operation with two keys.
Installation instructions detail the required straight‑pipe lengths (upstream ≥5D, downstream ≥2D), mounting steps, and wiring connections. Calibration methods (start‑stop and constant‑flow) are explained with menu navigation, and the menu structure is outlined, showing main, auxiliary and calibration windows. This manual is written in Chinese.
| Nominal pipe diameter DN15 flow range | 0.003–2.500 m³/h |
|---|---|
| Display type | Touch screen with two keys |
The upstream straight‑pipe section must be at least 5 times the pipe outer diameter (5D) and the downstream section at least 2 D.