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Extech AN340 CMM/CFM Anemometer/Psychrometer Datalogger
Item #:
EXT-AN340
Brand:
Extech
Share this product:
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
| 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”) |
| 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) |
