Differential Pressure Meters, Micromanometers

Handheld, highly accurate, auto-zeroing

Unprecedented differential pressure measurement accuracy (yet a wide range) for critical pollutant pathway monitoring, ventilation assessment, filter performance testing, general HVAC measurement and many other applications. GrayWolf AdvancedSense meters include auto-ranging dual DP sensors, as well as auto-zeroing (to maintain low-end precision). GrayWolf DP instruments offer broad measurement ranges, yet exceptional sensitivity. They may be utilized for spot checks and for long-term trending of a variety of pressure measurement applications that require high reliability. Choose from the cutting edge AdvancedSense XM or the Zephyr XM Meter (which replaces the workhorse “classical” Zephyr II and Zephyr III).

Differential pressure is a key HVAC measurement parameter in commercial, residential and institutional facilities and in manufacturing plants. For example, measuring pressure drop across coils and filters identifies when cleaning or replacement is in order, leading to improved occupant air quality and to significant energy savings. DP with a pitot tube can measure air velocities in difficult environments (e.g. stacks), over a very broad temperature range and up to very high velocities. DP monitoring is also a crucial parameter for determining pollutant pathways for IAQ (Indoor Air Quality) and for worker exposures, among many other applications.

AdvancedSense XM / Zephyr XM

The auto-ranging DP-702LH sensor offers unparalleled accuracy plus range in a handheld meter.

The AdvancedSense XM meter, when purchased with optional built-in, auto-zeroing, differential pressure sensor options (standard with the Zephyr XM), clearly displays pressure readings on its tactile, color screen. The auto-zeroing feature allows for highly accurate differential pressure logging over time. With a pitot tube, the unit provides direct air velocity or volume flow readings. The AdvancedSense XM includes dual ‘K’-type thermocouple sockets for input from air, immersion, surface and other temperature probe configurations. 3 rugged sockets allow optional connection to any other GrayWolf probes for an extensive range of additional parameters. The dual K-type sockets are also standard on the Zephyr XM.

Both meters offer an easy-of-use, highly intuitive user interface. They include a broad range of advanced features such as attachment of text, audio, drawing or other note formats to logged data, on-board video help and on-site access to extensive educational information.

Auto-zeroing

  • Auto-cals zero every 2 minutes for excellent low range accuracy over hours/days/weeks of monitoring

DP-702LH (Auto-Ranging DP Sensors)

  • Range ±10,000Pa (40inH2O, 1000mmH2O, 100mBar, 70mmHg)
  • Resolution 0.1Pa (0.001inH2O, 0.01mmH2O, 0.001mBar, 0.001mmHg)
  • Accuracy (auto-zeroing enabled) ±1% of rdg ±0.1Pa up to 250Pa, ±1%rdg ±4Pa >250 (±1% of rdg ±0.001 inH2O to 1.000 inH2O, ±1%rdg ±0.015 inH2O>1.000)

Optional Air Velocity, Temperature, %RH

  • Connect standard or GrayWolf manufactured pitot tubes to display m/s, ft/min, l/s, cfm & more
  • Hot-wire air velocity probes; telescoping, articulating (and °C/°F)
  • Dual K Thermocouple sockets
  • Optional PT100 temperature/%RH probe

Back-lit color display

  • Clearly displays readings with a choice of unit symbols
  • View data in tabular or graphic formats
  • Tactile screen enhances ease-of-use

Data-logging

  • Manual “snapshot” or automatic “trend” data-logging
  • Store enhanced survey information on-site; data plus text, audio notes and more…

Rugged Housing

  • Rubber side grips
  • Brass thread for wall bracket/tripod mounting, etc.
  • Optional instrument pouch with neck-strap

Intelligent user interface

  • Extremely easy-to-use
  • Intuitive icons and drop-down menus
  • Screen prompts user through operation

On-board educational tools

  • Feature tips, web-based video help files (including several on how to use DP sensors)
  • Specific info for each sensor

Reporting

  • Download logged data and notes to WolfSense® PC software (included) for analysis and efficient reporting

Expandable

  • Optional particle concentration (PM2.5, PM10, etc.) or particle count module (AdvancedSense XM only)
  • Optional IAQ, toxic gas, VOC probes (AdvancedSense XM only)
  • Optional air velocity probes (hotwire and/or pitot static tubes)
  • Optional barometric pressure sensor
  • On-line (Wi-Fi) data access (AdvancedSense XM only) and much more…

Brochures

For Detailed Information: