Differential Pressure

Differential pressure measurement is a crucial parameter for determining pollutant pathways for IAQ and worker exposure applications. It is also a key HVAC parameter in commercial and institutional buildings and in manufacturing plants, among many other important applications.

Each Zephyr II instrument includes a built-in, auto-zeroing, micro-manometer and 'K'-type thermocouple input for measuring differential pressure, static pressure and temperature. The auto-zeroing feature allows for highly accurate differential pressure logging over time. With a pitot tube, the Zephyr provides direct air velocity readings. Zephyrs can also be fitted with a telescoping 3-function probe (model 2300 AHTS) to measure humidity, temperature and (hotwire) airspeed.

The Zephyr II range has been designed with the user in mind. The large rubber grip and simple membrane switch pad ensure the unit is comfortable to use allowing pushbutton operation even with gloves on. The 2300 AHTS probe attaches to the side of the instrument for single-handed operation.

The display and menu system provide step-by-step guides for each operation. This ensures minimal user training is required. Data capture is included as standard to allow duct traversing. Volumetric flow is calculated by simply entering the size of the duct and the instrument performs the necessary calculation.

The Zephyr II is a stand-alone instrument. However, with all of it's available parameters, it may be interfaced to any GrayWolf WolfSense PPC or LAP mobile PC based system via a CF serial card (model ACC-SCDPC); opening the door to the full extent of GrayWolf's DirectSense product features.

•Measure Differential Pressure alone, together with a K thermocouple temperature probe, with a 2300 AHTS 3-function probe or simultaneous to GrayWolf DirectSense probe parameters. •Standard inputs     •Built-in, auto-zeroing, micro-manometer     •'K' type thermocouple •Large and clear display     •Measure up to 16 variables simultaneously     •Scroll through readings on display     •Wide viewing angle ensures readings are always visible     •Automatically updated when probes plugged in     •On screen instructions for easy operation •Data port (II+ only)     •Allows logged data to be downloaded to spreadsheet for analysis     •Manual or automatic datalogging available     •Advanced datalogging for unattended surveys •Intuitive menu system     •Minimum training required     •Easy to use     •Screen prompts guide user through operation •Comfortable to use     •Large rubber grip and lanyard     •Single-handed operation •Easy access to batteries     •Disposable or rechargeable can be used     •AC power adapter available •Multi-function probe     •Simultaneous measurement of several parameters     •Convenient single package •Durable housing     •Impact resistant     •Lightweight     •Designed for everyday use

•Probe attachment     •Smart probe can be fixed to side of instrument •Large pushbutton operation •Optionally works in conjunction with a GrayWolf IQ-410 Indoor Air Quality Probe, TG-501 Toxic Gas Probe, RH-302/310 Humidity Probe or AS-201 Air Velocity Probe •When interfaced with WolfSense, stores ALL survey information; data AND text/graphic/audio notes •With WolfSense, includes easily accessible, on-board parameter tips, government and industry Simple desktop data analysis and reporting with WolfSense PC software

Standard Zephyr Kits