Product Introduction
The GT300E GPRS wireless electromagnetic flowmeter series is an innovative battery-powered electromagnetic flow converter. When combined with standard electromagnetic flow sensors, it allows for the configuration of a precise flow measurement system without requiring a separate external power supply. In particular, it features built-in wireless communication capabilities, providing an optimal solution for remote data monitoring.
Product Features
- High-Precision Measurement: When combined with standard electromagnetic flowmeters, it guarantees high flow measurement accuracy ranging from Class 0.2 to Class 0.5.
- Long-Life Battery: Equipped with a standard lithium battery, it supports continuous operation for 3 to 6 years, and can be used for a longer period when the high-capacity battery option is selected.
- Diverse Wireless Communication Networks:
- SRD Mode: Supports short-range wireless communication using the 928MHz (US standard) frequency within a 1,000-meter radius centered on the base station.
- Wide Area Network (WAN) Communication: Enables direct data transmission and reception with a central control computer through GPRS or CDMA cellular networks.
- Robust Durability: Applying a die-cast aluminum case and an IP68-rated completely waterproof and sealed design ensures stability even in harsh environments.
Applications
- Locations with Difficult Power Supply: Flow measurement in areas where external power construction is impossible or not cost-effective.
- Harsh Environments: High-humidity underground mines, inside manholes with a risk of flooding, etc.
- Remote Integrated Management System: Water resource management systems that require real-time monitoring of flow data from vast areas at a central control room.
- Existing Equipment Upgrade: Upgrading existing facilities that use standard electromagnetic flow sensors to a wireless/battery-powered system simply by replacing the converter.
General Specifications
| Accuracy | ±0.5% (Standard), ±0.2% (Optional) |
|---|---|
| Repeatability | ±0.1% |
| Min. Conductivity | > 5 μS/cm (Separate consultation required for lower conductivity) |
| Measuring range | 0.1 ~ 15 m/s (Supports bidirectional measurement) |
| Diameter | DN6 ~ DN3,000 mm |
| Nominal Pressure | 0.6, 1.0, 1.6, 2.5, 4.0, 6.3 MPa (High-pressure customization up to 42MPa available) |
| Medium Temperature | Hard Rubber/Polyurethane: -20 ~ +60°C PTFE/PFA/FEP: -20 ~ +120°C (고온형 최대 180°C) |
| Material | Body/Flange: Carbon Steel (Standard), Stainless Steel (Optional) |
| Electrode: SUS316L, Hastelloy B/C, Titanium, Tantalum, Platinum-Iridium | |
| Measuring Tube: Stainless Steel 304 | |
| Lining: PTFE, PFA, FEP, Neoprene, Polyurethane, Hard Rubber | |
| Protection Class | IP65 (Standard), IP67/IP68 (Optional/Remote type) |
| Ambient Temperature | -20 ~ +60°C |
| Converter Specifications | |
| Power Supply | 85 ~ 265 VAC (50/60Hz) or 18 ~ 36 VDC |
| Display | Backlight LCD (Displays instantaneous flow, accumulated flow, velocity, percentage) |
| Output | Analog: 4-20mA (Isolated Output) Digital: Pulse, Frequency, Status Output |
| Communication | RS485 (Modbus), HART (Optional), Profibus, GPRS/CDMA (Optional) |
| Explosion Proof | Ex d [ia] IIC T4 (Optional) |
| Cable Entry | M20 $\times$ 1.5 (Standard), 1/2" NPT (Optional) |