Delite C2010 Online Precision Dew Point Transmitter

Overview

The Delite C2010 Online Precision Dew Point Transmitter is an industrial-grade, continuous moisture monitoring solution engineered for real-time dew point measurement in compressed air systems, high-purity process gases (including H₂, SF₆, N₂, and synthetic air), and critical utility streams. It employs a high-stability Vaisala HUMICAP® capacitive polymer sensor—calibrated and validated per ISO/IEC 17025-accredited procedures—to deliver robust, long-term stability under dynamic pressure and flow conditions. Unlike portable or laboratory-based chilled-mirror instruments, the C2010 is designed for permanent installation in-line or via sampling loops, supporting continuous compliance monitoring in pharmaceutical cleanrooms, semiconductor fab gas cabinets, power transformer SF₆ insulation systems, and compressed air distribution networks compliant with ISO 8573-1 Class 2–4 specifications.

Key Features

• Vaisala HUMICAP® humidity sensing element with integrated digital temperature compensation, minimizing drift across wide ambient and process temperature gradients (–40 to +60 °C operating envelope).
• Two selectable dew point measurement ranges: –100 to +20 °C (for ultra-dry applications such as electronics purge gas) and –60 to +60 °C (optimized for general industrial compressed air monitoring).
• Full 4–20 mA analog output linearly proportional to dew point temperature across the entire selected range—enabling seamless integration with PLCs, DCS, and SCADA systems without external signal conditioning.
• High-pressure capability up to 30 MPa (4350 psi), certified for direct mounting on high-pressure gas manifolds and SF₆-filled switchgear without external pressure reduction.
• Direct-insertion configuration with 80 µm sintered stainless-steel filter protects the sensor from particulates and oil aerosols while maintaining response time < 60 s (t₉₀) under nominal flow conditions.
• Factory-programmed fault signaling: 23 mA indicates internal transmitter error; 4 mA and 20 mA denote out-of-range low and high conditions respectively—supporting automated alarm logic and predictive maintenance workflows.
• Traceable calibration certificate provided with each unit, covering –75 to +20 °C dew point against NPL (UK) and NIST (US) primary standards; sub–75 °C verification performed using NIST-traceable chilled-mirror reference instrumentation.

Sample Compatibility & Compliance

The C2010 is validated for use with non-corrosive, non-condensing gases including compressed air, nitrogen, hydrogen, argon, helium, and sulfur hexafluoride (SF₆). It is not suitable for reactive, acidic, or solvent-laden streams (e.g., Cl₂, NH₃, or hydrocarbon vapors) without prior consultation and optional chemical filtration. The device meets electromagnetic compatibility requirements per IEC 61326-1 (industrial environment) and carries CE marking. Its design supports adherence to ISO 8573-1:2010 (compressed air purity classes), IEC 60480 (reused SF₆ specifications), and FDA 21 CFR Part 11-compliant data integrity when paired with validated data acquisition software (see Software & Data Management section). All calibration documentation complies with GLP and GMP audit expectations for regulated manufacturing environments.

Software & Data Management

While the C2010 operates autonomously as a 4–20 mA transmitter, its output is fully compatible with industry-standard data logging platforms—including Siemens Desigo CC, Honeywell Experion PKS, and Emerson DeltaV—via standard HART-enabled I/O modules (optional HART interface available upon request). For standalone validation and trending, Delite provides the optional C2010 Configuration & Diagnostics Utility (Windows-based), which enables field verification of zero/span, firmware version check, sensor health diagnostics, and generation of IQ/OQ-executable reports aligned with ASTM E2500 and Annex 11 principles. All calibration events, fault logs, and configuration changes are timestamped and exportable in CSV format to support 21 CFR Part 11-compliant electronic records when deployed with appropriate system-level controls.

Applications

• Continuous monitoring of compressed air quality in ISO Class 5–8 cleanrooms for pharmaceutical aseptic processing.
• In-line SF₆ moisture surveillance in GIS (gas-insulated switchgear) to prevent dielectric breakdown and comply with IEC 60480 limits (≤250 ppmv H₂O at 20 °C).
• Hydrogen drying verification in PEM electrolyzer and fuel cell supply lines (target dew point ≤ –60 °C).
• Quality assurance of inert gas blankets (N₂, Ar) used during semiconductor wafer fabrication and lithium battery electrode drying.
• Preventive maintenance of refrigerated and desiccant air dryers by detecting early desiccant saturation or refrigerant leakage via rising dew point trends.

FAQ

Is the C2010 suitable for measuring dew point in natural gas pipelines?
No—the sensor is not rated for hydrocarbon-rich or sour gas environments. Contact technical support for alternative solutions based on tunable diode laser (TDLAS) or quartz crystal microbalance (QCM) technology.

Can the dew point range be changed in the field?
Yes—range selection is configurable via the optional HART interface or C2010 Configuration Utility; no hardware modification is required.

What is the recommended recalibration interval?
Annual recalibration is advised for GxP-regulated applications; biennial intervals may be justified with documented performance history and risk assessment per ASTM E2500.

Does the transmitter support Modbus RTU or Profibus DP communication?
The base model outputs only 4–20 mA. Optional digital communication modules (Modbus RTU over RS-485) are available as factory-installed upgrades—consult product configurator for part number eligibility.

How is sensor contamination detected?
Gradual baseline drift (>±3 °C over 3 months), increased response time (>90 s t₉₀), or persistent 4 mA/20 mA faults after cleaning indicate potential sensor degradation or filter clogging—requiring inspection or replacement per maintenance manual Section 4.2.