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Technical Specifications
| Input | ||
| Pressure Type | Gauge pressure | |
| Measured Variable | Level | |
| Measuring Range | 0–1 m to 15 m H₂O | |
| Output | ||
| Analog Output | 4–20 mA / 0–5 V / 0–10 V | |
| Communication Output | RS485 | |
| Power Supply | ||
| Supply Voltage | Cable type | 8–30 VDC |
| 2088 housing type | 8–36 VDC | |
| Power Consumption | Cable type | < 0.6 W / < 0.05 W / < 0.072 W |
| 2088 housing type | < 0.2 W | |
| Electrical Connection | M20 × 1.5 cable gland | |
| Performance | ||
| Accuracy | Class 0.5 | |
| Long-term Stability | ≤ ±0.2% FS/year | |
| Response Time | < 100 ms | |
| Temperature Drift | Zero output temperature drift | Range > 10 m: ±0.01% FS/°C |
| Range 3–10 m: ±0.02% FS/°C | ||
| Range < 3 m: ±0.05% FS/°C | ||
| Full-scale output temperature drift | ±0.02% FS/°C | |
| Overload Pressure | 150% FS | |
| Compensated Temperature Range | -20 to 80 °C | |
| Insulation Resistance | > 0.5 MΩ | |
| Dielectric Strength | > 250 V, 0.5 MΩ | |
| Load Resistance | Current output | < (U − 12) / 0.02 |
| Voltage output | > 2 kΩ | |
| Note: U refers to the supply voltage. | ||
| Process Conditions | ||
| Medium Temperature | 0 to 70 °C | |
| Ambient Conditions | ||
| Ambient Temperature | −30 to 80 °C | |
| Storage Temperature | −40 to 150 °C | |
| Ingress Protection | Sensor | IP68 |
| 2088 housing wiring section | IP67 | |
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Applications
The 2088 housing submersible level transmitter is suitable for liquid level measurement and control in the following applications:
Oil & Gas Industry
Storage tanks, sumps, and process liquid level monitoring
Chemical Industry
Liquid level measurement in chemical tanks and vessels
Power Plants
Water level monitoring in cooling systems and auxiliary equipment
Municipal Water Supply
Reservoirs, pumping stations, water tanks, and water towers
Hydrological Monitoring
Rivers, lakes, wells, and groundwater level measurement
Industrial Tanks & Containers
Continuous level monitoring for various industrial liquids
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Measuring principle
The 2088 housing submersible level transmitter operates based on the principle that the hydrostatic pressure of a liquid is proportional to its height.
When the sensor probe is immersed in the liquid, the static pressure acts on the diffused silicon pressure sensing element. Due to the piezoresistive effect, the applied pressure is converted into an electrical signal. After temperature compensation and linear correction, the signal is converted into a standard output signal such as 4–20 mA, voltage, or RS485, which corresponds linearly to the liquid level.
