Water Level Sensor for 30L Water Tank – Deepflow CYPF05380

Overview

The Deepflow CYPF05380 water level sensor is an industrial-grade capacitive or resistive (configurable) sensing module engineered for precise, non-invasive liquid level monitoring in compact laboratory water reservoirs—specifically optimized for integration with 30-liter ultra-pure water storage tanks used in ultrapure water systems (UPW). Unlike float-based or ultrasonic alternatives, this sensor employs stable analog voltage or 4–20 mA current output calibrated to linear liquid height, enabling real-time feedback control of feed pumps, alarms, and system interlocks. Its design conforms to the mechanical and electrical interface requirements typical of modular ultra-pure water purification platforms—including compatibility with standard DIN rail mounting, IP65-rated housing, and low-power DC operation (12–24 VDC). The sensor operates without moving parts, ensuring long-term stability in deionized (DI) and Type I ultrapure water environments where conductivity is extremely low (<0.055 µS/cm), a condition that challenges conventional conductive probes.

Key Features

• Designed for 30 L capacity tanks with ±1 mm repeatability across full scale (0–300 mm typical sensing range)
• Chemically resistant wetted materials: FDA-compliant PPS (polyphenylsulfone) housing and 316L stainless steel or PTFE-coated electrodes
• Output options: configurable 0–5 VDC, 0–10 VDC, or 4–20 mA loop-powered signal with built-in EMI filtering
• Integrated temperature compensation circuitry to minimize drift across 5–40 °C ambient operating range
• Calibration traceable to NIST-traceable reference standards; factory calibration certificate included
• Complies with CE marking requirements per EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU

Sample Compatibility & Compliance

This sensor is validated for continuous immersion in ultrapure water (ASTM D1193 Type I, ISO 3696 Grade 1), deionized water, and low-conductivity aqueous buffers (≥0.1 µS/cm minimum conductivity required for resistive variants). It is not intended for use with organic solvents, high-salinity solutions (>500 ppm TDS), or aggressive acids/bases outside pH 4–10. All materials meet USP Class VI biocompatibility requirements and are compatible with cleanroom Class 100 (ISO 5) installation protocols. For GMP/GLP-regulated laboratories, the device supports audit-ready documentation packages including calibration logs, material declarations (RoHS/REACH), and installation qualification (IQ) templates.

Software & Data Management

The CYPF05380 operates as a standalone analog transducer but integrates seamlessly into supervisory control systems via PLC-compatible analog inputs (e.g., Siemens S7-1200, Allen-Bradley CompactLogix). Optional digital interface modules (RS-485 Modbus RTU) enable direct connection to laboratory information management systems (LIMS) or building automation platforms. When deployed within validated ultra-pure water systems, the sensor’s output can be logged with time-stamped metadata, supporting 21 CFR Part 11 compliance when paired with electronic signature-capable SCADA software. Raw signal stability is maintained at <0.2% FS/year, minimizing recalibration frequency in routine QC workflows.

Applications

• Level monitoring and low-level shutdown in 30 L point-of-use (POU) ultrapure water storage tanks
• Feed control logic for EDI (electrodeionization) and UV oxidation modules in multi-stage purification systems
• Alarm triggering for overflow prevention during automatic refilling cycles
• Integration with HPLC mobile phase reservoirs requiring consistent head pressure
• Real-time trending in environmental monitoring setups for humidity-controlled cleanrooms

FAQ

Is the CYPF05380 suitable for use with reverse osmosis (RO) permeate water?
Yes—its sensing principle remains stable in RO water (typically 1–10 µS/cm), though final calibration should be performed using actual process water due to minor dielectric variations.
Does the sensor require periodic recalibration in ultrapure water service?
Factory calibration is valid for 12 months under normal operating conditions; annual verification against a known reference level is recommended per ISO/IEC 17025 internal quality procedures.
Can this sensor be mounted horizontally or only vertically?
It is designed exclusively for vertical installation aligned with the tank’s primary axis; horizontal orientation invalidates linearity specifications and voids warranty.
Is explosion-proof certification available for this model?
No—CYPF05380 is rated for general laboratory environments only (non-hazardous area classification); ATEX or IECEx variants are not offered in this series.
What is the maximum allowable ambient temperature during continuous operation?
The electronics housing is rated for continuous duty up to 40 °C; extended exposure above this threshold requires external thermal shielding or forced-air cooling.