EdgeTech PPM1
Trace Moisture Analyzer

  • Sensitivity below 1ppm
  • Fast response
  • Long sensor life
  • Low cost
  • Fundamental measurement of moisture content
  • Displays / outputs—dew point (C/F) and PPM values
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Edgetech PPM1

Product Information
Datasheet 273 KB PDF
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The PPM1 is a trace moisture analyzer designed specifically for monitoring moisture levels in dew point and PPM units. This trace moisture analyzer utilizes an electro-chemical (P205) sensor in combination with a proprietary semi permeable diffusion membrane

The principle of operation applies the Faraday’s Law of Electrolysis which measures the dissociation current making it a fundamental measurement of the moisture present. The PPM1 is ideally used in relatively clean, dry, inert gas applications.

Specification PPM1
Measured Parameters PPM / Dew Point
Accuracy ± 5% of PPM reading, nominal
Range PPM: 1250 - 0.1 ppmv
Dew Point: -20°C to -95°C
Pressure 0 to 200 psig
Response Time 90% of step change in one minute, typically
Hysteresis None
Operating / Sampling Temperature: 0°C to 50°C
Electrical Outputs 4-20mA (x2), scalable by end-user
RS-232C (bi-directional), programmable and readable
Alarm, relays (x2), settable by end-user
Digital display - LCD, 2 line backlit
Power Requirements 18 to 30Vdc, unregulated, 1A max.
Standard Cable 6 feet (1.8m)
Dimensions Enclosure (LWD) — 5.1” (13cm) * 3” (7.6cm) * 5.1” (13cm)
Weight — 4 lbs. (1.81kg)
Ordering Information
Model  Description Buy Online Price
PPM1 EdgeTech PPM1 Trace Moisture Analyzer  Buy Now $3,700.00
Included Items
  • 1 Electrolytic Sensor
  • 1 Sensor Cable
  • 1 Battery Charger
  • 1 Carrying Case
  • 1 1 Year Warranty
  • 1 User Manual
Included Items
Model  Description Buy Online Price
PPM1-M EdgeTech PPM1-M Membrane Replacement  Buy Now $125.00
PPM1-MB EdgeTech PPM1-MB Mounting bracket for sensor, right angle  Buy Now $115.00
PPM1-PPMS EdgeTech PPM1-PPMS Sensor complete with sample chamber  Buy Now $2,345.00
PPM1-SC EdgeTech PPM1-EdgeTech PPM1-SC Sample Chamber, flow through, 316 SS with 1/8 NPT inlet and outlet ports (included with each purchase of PPM1)  Buy Now $737.00
PPM1-SCBL EdgeTech PPM1-SCBL Sensor cable with connectors (6ft.).   Buy Now $175.00
PPM1-SM115 EdgeTech PPM1-SM115 Sample Module 115 VAC operation Discontinued
PPM1-SM230 EdgeTech PPM1-SM230 Sample Module 230 VAC operation Discontinued
PPM1-W EdgeTech PPM1-W Wafer replacement  Buy Now $375.00