DewTech 390 Low Dewpoint Hygrometer

The Edgetech Instruments DewTech 390 is a precision dew/frost point hygrometer that measures extremely low frost points or trace moisture in a variety of background gases. Based on the primary method chilled mirror sensor technique, it is delivered with a NIST traceable calibration certificate and is certified in an ISO/IEC 17025 accredited calibration laboratory. At the core of the DewTech …

Features

  • A precision laboratory grade hygrometer system that measures an extremely wide range of dew/frost points in gases from as low as –90°C frost point to as high as +20°C dew point
  • Based in the primary method chilled mirror technique with all the attributes, features and certifications needed for laboratory use at an affordable price
  • Ideal for metrology labs, scientific research and process measurements or any application where high precision measurement of dew/frost point over a wide range with fast response and high stability are required
  • For peak efficiency the sensor’s performance is maximized by an integral cryo-cooling system
  • The DewTech 390 is supported in the USA in a modern, ISO 9001 registered facility with ISO/IEC 17025 accredited calibration laboratory and is delivered with a UKAS traceability certificate.
Sentry Compressed Air Monitoring and Alarm System Data Sheet

SENTRY Compressed Air Monitor and Alarm

The Edgetech Instruments SENTRY turn-key measurement and alarm system features a smart multi-sense probe that continuously monitors the dew/frost point and pressure of compressed air systems to detect compressor or dryer failures and system pressure leaks. The SENTRY features a strobe lamp and pulsing horn plus an alarm relay contact that activate when a programmable, low pressure or high dew/frost …

Features

  • Detects upset conditions in compressed air systems
  • Constantly monitors pressure and dew/frost point temperature
  • Strobe lamp and pulsing audible alarms for low pressure or high dew/frost point alert
  • Displays dew/frost point and pressure on panel meter
  • NIST traceable calibration certificate
  • Field replaceable Smart Sensor Tip
  • Alarm relay and 4 to 20 mA outputs
  • Complete system, ready for installation
PPM1 Trace Moisture Analyzer

PPM1 Trace Moisture Analyzer

The PPM1 uses an electrolytic, phosphorus pentoxide sensor in combination with a proprietary semipermeable diffusion membrane to measure trace moisture as parts per million by volume (ppmv) water vapor or dew/frost point in dry inert gases. The PPM1 is modular and may be mounted remotely. It is packaged in an IP66/67, NEMA 4 enclosure and comes complete with two FORM …

Features

  • Trace moisture transmitter for monitoring moisture levels in dew/frost point and ppmv
  • Wide measurement range of 0.1 to 1250 ppmv covers many industrial and research applications
  • Fundamental measurement principle traceable to NIST standards
  • Packaged in an IP66/67, NEMA 4 enclosure with two alarm relays, two analog outputs and a RS-232 bi-directional serial interface
  • Optional VCR sample connections
  • For dry inert gas applications

HP125 Series Multi-Sense Humidity Probe

The HP125 Multi-Sense Humidity Probe is a cost effective, easy to use solution to many industrial and laboratory measurement and control applications. The HP125 probe exploits the latest advancements in polymer humidity sensing technology and compact electronic circuitry. It is designed to continuously measure up to 4 measurement parameters using a single intelligent sensor tip including RH%, calculated Dewpoint, Temperature …

Features

  • Single, cost-effective probe continuously measures up to 4 parameters including relative humidity, dewpoint, temperature and pressure
  • The sensor can be replaced in seconds and automatically synchronizes with the HP125 probe
  • Can be used stand-alone or in combination with the HP125-DCM or with the SENTRY series of compressed gas alarm modules
  • No need to send the probe for calibration service off-site
  • Each new sensor comes with a NIST traceable calibration certificate
  • For industrial and laboratory measurement and control applications

PPM2 Portable Trace Moisture Transmitter

The Edgetech Instruments Model PPM2 is a portable battery powered trace moisture analyzer designed specifically for monitoring moisture levels in dewpoint and ppm units. This trace moisture analyzer utilizes an electrochemical (P2O5) sensor in combination with a proprietary semi permeable diffusion membrane. The principal of operation applies the Faraday’s Law of Electrolysis which measures the dissociation current making it a …

Features

  • Portable trace moisture analyzer for monitoring moisture levels in dew/frost point and ppm
  • Wide measurement range of 0.1 to 1250 ppmv covers many industrial and research applications
  • Fundamental measurement principle traceable to NIST standards
  • Battery powered with rechargeable batteries and charger included
  • For clean, dry, inert gas applications

ELH Series – Precision Humidity Chambers

The ELH Series of precision humidity chambers has NIST traceable accuracies in humidity, temperature and dewpoint. The ELH Series incorporates programmable controllers for constant, precision parameter control and uniformity plus integrated DewMaster chilled mirror hygrometers for accurate temperature and humidity measurements. These highly accurate temperature and humidity control chambers are very similar in performance to two-pressure method devices but they …

Features

  • A group of precision calibration chambers incorporating programmable controllers plus primary method DewMaster chilled mirror hygrometers
  • Highly accurate temperature and humidity control similar in performance to two-pressure method devices but at a significantly lower price
  • Delivered with multi-point, NIST traceable, ISO/IEC 17025 accredited certification
  • Various sized bench mount calibration chambers having 304 stainless steel interiors are available

DPM-99 Dewpoint Monitor

The NFPA 99 has mandated that for Med Gas systems the “dewpoint for locally compressed air shall be monitored and alarmed per 4-3.1.9.8 and 4-3.1.1.2(f) to protect from line pressure dewpoint rise to 39 degrees F (3.9 degrees C) from a nominal design of 35 degrees F (1.7 degrees C).” This safeguard was the foundation for the new Edgetech Instruments …

Features

  • Drift free alternative medical air dew/frost point monitoring and alarm system encompassing a chilled mirror hygrometer plus audible and visible alarm functions, contained in a NEMA-12 enclosure
  • Uses a primary method chilled mirror dew/frost point sensor to meet Level 1 and Level 2 requirements of NFPA 99 for Medical Air
  • Certified in an ISO/IEC 17025 accredited laboratory traceable to NIST Standards
  • Very high accuracy and sensitivity, fast response, failsafe alarm functions and analog outputs
  • Ruggedized metal enclosure protects against electrical interference and environmental shock
  • Uninterruptable backup power supply available
OxyTrans-PSS Portable Oxygen Transmitter

OxyTrans-PSS Portable Oxygen Transmitter

The OxyTrans-PSS is a portable transmitter with sampling system and case that is an easy to use, accurate and economical way to measure oxygen at trace and percent levels in gases. The included OxyTrans oxygen concentration transmitter has a simple display and one point calibration that allows quick startup. The OxyTrans-PSS uses a special fuel cell to measure the oxygen …

Features

  • A complete portable oxygen measurement sampling system based on the OxyTrans transmitter
  • Easy to use, accurate and economical way to remotely measure oxygen in gases at trace and percent levels
  • AC or battery powered for convenience
  • Uses a modular stainless steel fuel cell to measure the oxygen concentration
  • The measuring cell is repairable by replacing defective parts without replacing the entire cell
  • The sensor meets industrial requirements for accuracy, sensitivity and operating life.

CAM Compressed Air Module

The CAM (Compressed Air Module) is a sampling chamber for use with Edgetech Instruments humidity and dewpoint probes. It has a sample inlet ball valve for connection to a pressurized compressed air or gas takeoff point, providing an easy way to connect a probe or alarm module to a gas supply. The ball valve allows isolation of the probe from …

Features

  • Sample chamber allows safe isolation and servicing of sensor probe at pressurized sample takeoff point
  • For installation and use with HP125 and Sentry humidity probes
  • Provides ball valve to isolate probe from process pressure and bleeder valve to allow flow of sample gas past the probe sensor
  • May be used for pressure dewpoint or atmospheric dewpoint measurements
  • Available in brass or stainless steel construction