Overview
Hospitality Enviro Tech OEM Flow Totalizer Gas & Liquid Quantitative Controller Display offers precise instantaneous and accumulated flow measurements for both gas and liquid applications. This device, sourced from a Chinese manufacturer specializing in flow and process instrumentation, supports universal sensor inputs and provides high accuracy with RS485 communication. Its 14-bit A/D conversion, multiple display modes, and alarm output make it a reliable solution for industrial flow monitoring and control applications.
Features
- Supports universal inputs: 4–20 mA, 0–10 V, PT100, K, S, and more
- Dual display for instantaneous and accumulated flow values
- High-resolution 1/20000 14-bit A/D converter
- Alarm output and transmission via 4–20 mA, 0–10 V, RS485
- Isolated two-way communication interface (RS485/RS422/RS232/Modem)
- Low power consumption under 4 W with 220 V AC supply
- Compact design with fast 0.5 s sampling and alarm period
- Operates in ambient conditions from 32 °F to 122 °F (0 °C to 50 °C)
Technical Specifications
| Specification | Value |
| Input Signal | 4–20 mA, 0–10 V, PT100, K, S, etc. |
| Frequency Range | 0 to 10 kHz |
| Basic Error | ±0.5% FS or ±0.2% FS ±1 word |
| Resolution | 1/20000, 14-bit A/D converter |
| Display Method I | Instantaneous flow (upper row), accumulated flow (lower row) |
| Display Method II | Accumulated flow (upper), pressure/temp/instantaneous flow (lower) |
| Sampling Period | 0.5 s |
| Alarm Output | 0.5 s |
| Transmission Output | 4–20 mA, 0–10 V, RS485 |
| Communication Output | RS485, RS422, RS232, Modem |
| Feed Output | DC24 V/30 mA (customizable) |
| Power Supply | 220 V AC, <4 W consumption |
| Operating Temperature | 32 °F to 122 °F (0 °C to 50 °C) |
| Relative Humidity | <85% RH |






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