Omega Products HHF11A User Manual

AIR VELOCITY METER

With CFM/BTU/Dew Point/Wet Bulb/Temp/Humidity

HHF11A

†

Optional

U Measures Temperature,

Dew Point, Relative Humidity, Wet Bulb, Air Velocity, Air Volume, Capacity

U Lightweight, Easy-to-Maneuver

Measurement Vane

U Single-Point Averaging U °C/°F Selectable U Auto Power-Off after

10 Minutes of Inactivity

U Jumbo Display U Ball-Bearing Fan U Optional Software

The HHF11A anemometer can measure air ﬂow, humidity, dew point, wet bulb, air volume, and capacity. The built-in microprocessor ensures high accuracy. It can also track the maximum and minimum values along with current readings, displaying the ﬂow rate in the user’s choice of meters per second or cubic feet per minute.

With its low-friction, ball-bearing, mounted-wheel design, the HHF11A is accurate at both high and low air velocity. The impeller is accurate to 5% and can measure the slightest breeze (0.3 m/s). Other features include single-point averaging of air volume and capacity, °C/°F selection, and auto shut-off after 10 minutes of non-use.

SPECIFICATIONS

Maximum Reading: 99,999 Cable Length: 50 cm extends to 1.5 m

(20" extends to approx. 5')

Vane Diameter: 74 mm (2.9") Vane Size (H x W x D): 164 x 74 x 40 mm

(6.45 x 2.9 x 1.57") Unit Size (H x W x D): 157 x 62 x 28 mm (6.18 x 2.44 x 1.1") Display Size (H x W): 34 x 47 mm (1.3 x 1.85")

Digit Height: 18 mm (0.7") Display: High-contrast 5-digit display Power: 4 “AAA” batteries (included) Weight: 263 g (9.28 oz) without batteries Response Time: 1 second Operating Current: 5 to 8 mA Operating Temperature:

0 to 50°C (32 to 122°F)

Operating Humidity: Less then 90% RH

HHF11A shown smaller than actual size.

Measurement Range Resolution Accuracy

Air Velocity 0.3 to 35 m/s (1 to 114 ft/s) 0.1 ±5%

Air Volume 0 to 99,999 m3/min (0 to 99,999 ft3/min) 0.1 ±5%

Capacity 0 to 99,999 BTU/h (0 to 99,999 kW) 0.1 ±3%

Temperature -20 to 60°C (-4 to140°F) 0.1°C/°F ±0.6°C (1°F)

Humidity ±3% from 10 to 90% 0 to 100% 0.1% ±5% above 90%

Dew Point -68 to 70°C ±3% from 10 to 90% (-90 to 158°F) 0.1°C/°F ±5% above 90%

Wet Bulb -22 to 70°C ±3% from 10 to 90% (-7.6 to 158°F) 0.1°C/°F ±5% above 90%

To Order Visit omega.com/hhf11 for Pricing and Details

Model No. Description HHF11A Air-ﬂow meter

HHF11A-VANE

HHF91-SW Software and RS232 cable

CAL-3-FLOW† NIST-traceable 4-point calibration certiﬁcate

MN2400-12 Package of 12 replacement “AAA” batteries

Comes complete with operator’s manual, hard carrying case and 4 “AAA” batteries. Ordering Example: HHF11A, 5-digit air-ﬂow meter.

Replacement vane

C-11