Extech AN340 CMM/CFM Anemometer/Psychrometer Datalogger

Item #:

EXT-AN340

Brand:

Extech

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Description

AN340 CMM/CFM Anemometer/Psychrometer Datalogger by Extech

Telescoping probe with 18mm diameter vane sensor easily fits into air vents and can extend length of probe to 3.3ft (1m) long. Measures Air Velocity/Volume, Temperature, Humidity, Wet Bulb, and Dew Point. User can store up to 12,000 readings for data analysis.

Features

Telescoping 0.7" (18mm) diameter vane sensor extends from 1ft (0.3m) up to 3.3ft (1m)
Measures Air Velocity, Air Flow, Air Temperature, Humidity, Dew Point and Wet Bulb
Manually store/recall up to 99 readings
Automatically datalog up to 12000 readings with 12/24 hour time and date stamp
Select data sampling rate from 1s to 4hr: 59 min: 59s
Min/Max/Avg readings
Data hold and Auto power off with disable
Built-in PC Interface
Complete with external mini vane probe, Windows® compatible software, USB cable, 6 AAA batteries, and hard carrying case

Applications

HVAC with small ducts and vents
Manufacturing
Engineering
Appliance Testing
Research and Design

Specifications

General Specifications

Circuit	Custom LSI microprocessor
Display	Dual function 32.5 (H) x 54 (W) mm (1.3 x 2.1") LCD
Sampling rate	1 reading per second approx.
Air velocity/flow sensor	Angled mini‐vane arms with low‐friction ball bearing
Sensors	NTC - type precision thermistors
Automatic Power off	Auto shut off after 20 minutes to preserve battery life (sleep mode)
Operating Temperature	0°C to 50°C (32°F to 122°F)
Storage Temperature	-20°C to 50°C (-4 to 122°F)
Operating Humidity	<80% RH
Storage Humidity	<90% RH
Operating Altitude	2000 meters (7000ft) maximum
Battery Power	Six (6) 'AAA' 1.5V batteries
Battery Life	> 40 hours
Battery consumption	14 mA DC (approx.)
Weight	210g (0.5 lbs.) including batteries
Dimensions	Main instrument L x W x H: 169 x 78.3 x 44mm (6.6 x 3.1 x 1.7 ") Sensor diameter: 18mm (0.7"); Telescoping wand extends 1m (39”)

Range Specifications

Air Velocity
m/s (meters per second)	Range: 0.5 - 20 m/s Resolution: 0.1 m/s Accuracy: ± (3% rdg + 0.2 m/s)
fpm (feet per minute)	Range: 98 - 3937 fpm Resolution: 1 fpm Accuracy: ± (3% rdg + 39 fpm)
Relative Humidity
RH	Range: 0.1%‐99.9%RH Resolution: 0.1 RH Accuracy: ±3%RH (10‐90%RH); ±5%RH (<10% or >90%)
Air Flow
CMM (cubic meters/min)	Range: 0 - 99999 m³ /min Resolution: 0.1 up to 9999.9 then 1.0 Area Range: 0 to 99999cm²
CFM (cubic ft/min)	Range: 0 - 99999 ft³ /min Resolution: 0.1 up to 9999.9 then 1.0 Area Range: 0 to 99999in²
Temperature
°C/°F	Air and Wet Bulb Range: -20 to 60°C (-4 to 140°F) W et Bulb temperature: ‐20 to 70°C (‐4 to 158°F) Dew Point Range: ‐20 to 60°C (-4 to 140°F) Resolution: 0.1°C/°F Accuracy: ±0.6°C (0 to 50°C); ±1.2°C (below 0°C, above 50 °C); ± 1.1°F (32 to 122°F); ± 2.2°F (below 32°F, above122°F)