Envco – Environmental Equipment

Features and Benefits
•Measure differential and static pressure from -15 to +15 in. H2O (-3735 to +3735 Pa)
•Calculate and display velocity when using a Pitot tube
•Variable time constant
•Statistics

Applications
•HVAC commissioning and troubleshooting
•Testing and balancing
•Pitot tube duct traverses
•Static pressure measurements
•Pressure drop across filters, coils, fans, and diffusers
•Environmental air flow testing

Included Items
•Instrument
•Hard carrying case
•NIST or EAL calibration certificate
•Operation and service manual

Specifications
Specifications are subject to change without notice.
Static/Differential Pressure:
Range1: -15 to +15 in. H2O (-28.0 to +28.0 mm Hg, -3735 to +3735 Pa)
Accuracy: ±1% of reading ±0.005 in. H2O (±0.01 mm Hg, ±1 Pa)
Resolution: 0.001 in. H2O (1 Pa, 0.01 mm Hg)

Velocity From a Pitot Tube:
Range2: 250 to 15500 ft/min (1.27 to 78.7 m/s)
Accuracy3: ±1.5% at 2000 ft/min (10.16 m/s)
Resolution: 1 ft/min (0.1 m/s)

Instrument Temperature Range:
Operating (Electronics): 40 to 113°F (5 to 45°C)
Storage: -4 to 140°F (-20 to 60°C)

Instrument Operating Conditions:
Altitude up to 4000 meters
Relative humidity up to 80% RH, non-condensing
Pollution degree 1 in accordance with IEC 664
Transient over voltage category II

External Meter Dimensions:
3.3 in. x7.0 in. x1.8 in. (8.4 cm x17.8 cm x4.4 cm)

Meter Weight:
Weight with batteries: 0.6 lbs (0.27 kg)

Power Requirements:
Four AA-size batteries (included)

The DP-CALC™ 5815 and 5825 micromanometers allow you to easily make HVAC pressure measurements. These robust instruments can be used with Pitot probes to measure duct velocity. The DP-CALC™ 5815 is a simple to operate, hand held digital Micromanometer for fast, accurate differential and static pressure measurements. The high performance DP-CALC™ 5825 can calculate flow and has data logging capabilities.