PPM1 Trace Moisture Analyzer
Reliable Trace Moisture Measurement in Gases
Starting at: $5,450.00
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.
Request Price & AvailabilityKey Features
| 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
Q: What’s the trace moisture range of the PPM1?
A: It measures from 1250 to 0.1 ppmv or –20 °C to –95 °C dew/frost point.
Q: What gases can it analyze?
A: The PPM1 is compatible with inert and non-reactive gases, including nitrogen, argon, helium, and clean dry air.
Q: Is it a trace moisture transmitter or analyzer?
A: It functions as both: a trace moisture transmitter with analog outputs and a complete analyzer with display and diagnostics.
Q: Does it come with NIST calibration?
A: Yes. Every unit ships with a NIST-traceable certificate, and annual recalibration is available through our accredited lab.
Q: What is the difference between flow-through and diffusion sampling?
A: Flow-through is used for regulated pressure systems; diffusion is ideal for glove box or ambient exposure without active flow.
Configure Your Trace Moisture Solution
Need to tailor your PPM trace moisture meter to your gas stream, flow rate, or enclosure type?
We offer:
- Sample extraction vacuum pumps
- Optional VCR male or female ports
- Sensor mounting brackets for glove box/diffusion use
- Application-specific support from our engineering team
Call 978-310-7760 or request a quote to get started.
Request Price & Availability
