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Edgetech - Model PPM1 -Trace Moisture Analyzer
The PPM1 Trace Moisture Analyzer is a compact, high-accuracy system engineered for measuring parts-per-million (ppm) moisture in gases. Built around an electrolytic phosphorus pentoxide sensor, the PPM1 applies Faraday’s Law of Electrolysis to directly determine water vapor content in gas streams. With a NEMA 4 (IP66/67) enclosure, the PPM1 is ideal for harsh industrial environments and glove box integration. This NIST trace moisture analyzer is made in the USA and backed by ISO 9001 and ISO/IEC 17025 accreditation.
- Sensor Type: Electrolytic phosphorus pentoxide (POs)
- Measurement Range: 0.1 to 1250 ppmv; -20 °C to -95 °C dew/frost point
- Accuracy: +5% of reading (typical)
- Response Time: 90% of step change within 1 minute (typical)
- Enclosure: NEMA 4, 1P66/67 rated plastic housing
- Output Signals: Two 4-20 mA analog outputs, RS-232, and two alarm relays
- Sample Connections: Standard ¼" compression; VCR optional
- Sampling Options: Flow-through or diffusion sampling
- Calibration: NIST-traceable, ISO/IEC 17025-accredited lab
- Power Supply: 18-30 VDC, unregulated
- Operating Temperature: 0°C to 50°C (32°F to 122°F)
Precise PPM Moisture Detection
Ideal for ppm moisture analyzers in applications where even trace water vapor levels can compromise product or process quality.
Configurable and Compact
Choose between flow-through or diffusion sampling with remote sensor placement at the gas process take-off point.
Durable NEMA Design
Fully enclosed in a rugged, IP66/67-rated NEMA trace moisture analyzer housing suitable for harsh or sensitive locations.
Smart Outputs
Bi-directional RS-232, dual 4–20?mA outputs, and programmable relays deliver integration-ready performance.
Certified and Supported
Calibrated in a NIST-traceable lab and manufactured in the USA under ISO 9001 and ISO/IEC 17025 quality systems.
The PPM1 is trusted by engineers and quality teams monitoring moisture levels in:
- Inert gas purity assurance
- High-purity gas cylinder trans-fill
- MAP (Modified Atmosphere Packaging) gas systems
- Moisture monitoring in power and energy systems
- Air separation units and cryogenic processing
- Isolation chambers in industrial environments
Pharmaceutical & Life Sciences
- Cleanroom-grade trace moisture analyzer for gases
- Pharmaceutical storage humidity control
- Moisture-sensitive pharmaceutical processes
- Semiconductor fabrication lines
- Glove box or isolation chamber sampling setups