Watchman Differential Pressure Monitor

This instrument is designed for monitoring differential pressure in containment areas. The protective plastic case contains the complete instrument - a pressure indicator/transmitter with an LCD display, a power supply, and the PVC connection tubing - all in a compact size of 14" x 11" x 3" and a weight of less than 3 lbs.

When the instrument is con0nected to a containment it will monitor differential pressure in the range of 0" to 0.100" of water column with an accuracy of +/- 2% and will provide both visual and audible alarms when the differential pressure is less than 0.020" of water column.

When an alarm condition exists both the visual and audible alarms will be activated. To reset the instrument the user will push the SILENCE button which will turn off the audible alarm. At this time the visual alarm will go from a flashing light to a solid light, which will remain on until the differential pressure returns to the normal range which will reset the entire system.

SPECIFICATIONS        

Differential Pressure Range - 0 to 0.100" WC. Optional pressure ranges up to +/- 25" WC are available.
Pressure Inlets - Two 3/16" OD barbed hose connections allow the user to monitor either positive or negative containments.
Alarm Set Point  - Default is 0.020" WC but factory settable to user specifications.
Display - four digit 3/8" LCD
Resolution - 0.001
Accuracy - +/- 2% of full range
Zero and Span Calibration - pushbutton 
Burst Pressure - 1 psi
Dimensions - 14" wide 11" high 3.25" deep
Weight - 2.75 lbs
Power Requirement - 115 VAC/ 50-60 Hz 300ma