BT702 is a flow accumulation meter with features including input, output, accuracy, communication, display, power supply, storage conditions, and operating conditions.
The BT702 flow totalizer from BOTA is a compact instrument for measuring and accumulating flow, pressure, and temperature. It provides real‑time flow values, cumulative totals, and supports various input signal types with optional temperature and pressure compensation.
The manual details technical specifications, installation and wiring procedures, menu navigation, alarm settings, and flow‑coefficient calculations. It also includes communication options, data logging parameters, and troubleshooting guidance. This manual is written in Chinese.
| Input signal types – Flow | 0~10 mA, 4~20 mA, 0~20 mA, 0~5 V, 1~5 V, pulse frequency (1 Hz~8 kHz), PNP/NPN switch |
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| Input signal types – Pressure | 0~5 V, 1~5 V, 0~10 mA, 0~20 mA, 4~20 mA |
| Input signal types – Temperature | Thermocouples (K, S, B, E, N, J, T), Pt100, Cu50, 0~20 mV, 0~60 mV, 0~100 mV, 0~5 V, 1~5 V, 0~10 mA, 0~20 mA, 4~20 mA |
| Output capability | Up to three isolated 24 VDC/30 mA power‑supply outputs |
| Accuracy | ±0.2 % FS for flow, temperature, and pressure |
| Communication interfaces | RS485, RS232 |
| Record interval | 1 s to 5 h (adjustable) |
| Record capacity | 32 MB |
| Display resolution | 128 × 64 pixels, 1 Hz refresh |
| Power supply | 85 ~ 265 VAC or DC |
It accepts 0‑10 mA, 4‑20 mA, 0‑20 mA, 0‑5 V, 1‑5 V, pulse frequencies from 1 Hz to 8 kHz, and PNP/NPN switch signals.
The instrument provides RS485 and RS232 communication ports.
It can be powered from 85 V to 265 V AC or from a DC source.
The device has a 32 MB memory for recorded data.