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Interface Level Transmitter
Interface level transmitter is designed and certified in accordance with explosion-proof requirements. It is suitable for accurate measurement of process vessels and storage vessels in petroleum, chemical, electric power, steel, food, pharmaceutical and other industries.
Interface Level Transmitter can provide high-speed, reliable and high-precision continuous measurement in explosive gas environment. The output is in analog or digital form. The analog output form is two-wire 4-20mA+Hart; the digital output adopts RS485 (Modbus protocol) communication. When interface level transmitter working, it can be one or more floating balls. The floating ball can be suspended on the liquid-gas interface and liquid-liquid interface in the storage tank respectively, and move synchronously with them, WPX902 interface level transmitter realizes the real-time detection of the liquid level or interface of the liquid tanks.
Features Of WPX902 Interface Level Transmitter:
- Support multi-liquid level synchronous detection, high precision and high repeatability.
- Continuous measurement, absolute position output, restart without returning to zero.
- Support 5-point temperature measurement.
- On-site display, easy maintenance.
- Easy to use, with multiple output modes.
- Long service life, stable and reliable performance.
- Low power consumption design, effectively reducing system heat generation.
- Electrical appliances for explosive gas atmospheres.
| Product Name | Interface Level Transmitter  (WPX902) | |
| Output | 2-wire 4-20mA+Hart | Modbus |
| Output parameters | Liquid level, interface, temperature, liquid level difference | |
| Effective range | Hard rod: 100~6000mm; flexible rod: 1000~22000mm | |
| Number of measurement points | 1, 2 | 3 |
| Resolution | 16-bit D/A | Up to 0.1mm |
| Non-linear error | ≤ ±0.05% of full scale | |
| Repeatability | ≤ ±0.01% of full scale | |
| Value error | ≤ ±0.1% of full scale | |
| Temperature performance | ≤100ppm/℃ | |
| Response time | 100ms | |
| Working voltage | Rated working voltage: 24Vdc; normal working voltage: 10~30Vdc | |
| Operating current | <25mA (varies with range size) | <50mA (varies with range size) |
| Load characteristics | power supply 24V, current output
Maximum load 500Ω |
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| Protection class | IP67 | |
| Measurement blind zone | Upper blind zone can be none; lower blind zone minimum 20mm; blind zone of float height | |
| Temperature | Ambient temperature: -40℃～+70℃.
Medium temperature: -40℃～+70℃ (common type); -40℃～+200℃ (high temperature type) |
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| Electronic bin material | Aluminum alloy, stainless steel 304 | |
| Medium density | ≥500kg/m³ | |
| Material of measuring rod | Stainless steel 304, 316, other materials can be customized | |
| Pressure-bearing characteristics | Rated 1.6mpa, can be customized | |
| Process interface | Thread or Flange | |
| Electrical interface | 2pcs M20*1.5 | |
| Operating environment | Outdoor, indoor | |
| Overpressure protection | 36V | |
| Polarity protection | Diode in series | |
| Electromagnetic compatibility | Comply with GB 21117-2007-T | |
| Insulation resistance | 20M（100V） | |
| Dielectric strength | 500V | |
| Other functions | 5-point temperature measurement; with field display and setting function | |
| Explosion-proof mark | Ex d â…¡B T6 Gb | |
