Product

Weighing

AD-1641

Air Flow Logger


	Not just a simple air flow logger, but the world's most versatile environmental data logger!

	Brochure (PDF 629KB)
	Manual (PDF 1.3MB)

Features

High precision, fast response air flow sensor to capture low-velocity air flows of 0 to 1.00 m/s

Measuring and recording of four other kinds of environmental data – temperature, humidity, barometric pressure and vibration

Alarm for abnormal values (comparator function)

Large memory capacity of 10,000 data sets

Instant data saving to a PC requiring no special software

Separate, easy-to-mount air flow sensor with 2 m cable length

Simultaneous logging of the five kinds of environmental data and weighing data

Real-time transmission of environmental data (with or without weighing data) to a PC possible

No battery power required when connected to a PC

Power-saving function when operated on batteries

Remaining battery level indicator

Optional AC adapter available for use with the provided 2-meter USB cable

Interval time setting for data capture

Peak hold function for vibration measurement

Primary data mode to display two selected data items in large size separately

Trend graph mode to visualize chronological changes using graphs

Protector against dust & water (IP65) as well as 1.5 m drop impacts

ID number setting that makes file management easier

Connection cables provided as standard, including three types of RS-232C cables for weighing instruments

Compact size for high portability

Options

AD-1687-22: Desktop/wall-mount stand

Accessories

AX-KO3986-150 : Waterproof extension cable (1.5 m) for the thermo-hygrometer
AX-TB265 : AC adapter (AC 100 – 240 V; Interchangeable plugs – A/BF/C/S)

Specifications

Data capacity	Maximum 10,000 sets (including date and time)
Interval time	1, 2, 5, 10, 15, 20, 30 seconds, 1, 2, 5, 10, 15, 20, 30, 60 minutes
Power supply	Two LR6 (AA) batteries or USB*
Battery life	Approx. 20 hours (with alkaline batteries)
Clock accuracy	Maximum ±1 minute/month
Compatible operating systems	Windows 2000 / XP / Vista / 7 / 8 / 10 (32 / 64 bit)
Operating environment	0 to 60 °C / 32 to 140 °F, 85% RH or less (no condensation)
Dimensions / Weight	Main unit : 127 (W) × 90 (H) × 36 (D) mm (including the protector) / 275 g (including batteries and protector)
Dimensions / Weight	Air flow sensor unit : 90 (W) × 90 (H) × 91 (D) mm / 89.7 g
Standard accessories	Three RS-232C cables for weighing instruments (9-pin D-Sub, 25-pin D-Sub, and 7-pin DIN, 1 m), USB cable (2 m), Cable for the air flow sensor unit (2 m), Two R6 (AA) batteries (for operation check), Protector (for the main unit), Instruction manual

* No battery is required when connected to a PC or AC adapter (optional) via USB.

Sensors

Sensor	Resolution	Measurement range	Accuracy
Air flow	0.01 m/s	0.00 to 1.00 m/s	±0.05 m/s (0.10 to 1.00 m/s)
Temperature	0.1 °C 0.1 °F	0 to 60 °C 32 to 140 °F	±1.5 °C (0 to 10 °C, 40 to 60 °C) ±1.0 °C (10.1 to 19.9 °C, 30.1 to 39.9 °C) ±0.5 °C (20 to 30 °C) ±2.7 °F (32 to 50 °F, 104 to 140 °F) ±1.8 °F (50.1 to 67.9 °F, 86.1 to 103.9 °F) ±0.9 °F (68 to 86 °F)
Relative humidity	0.1% RH	0 to 100%	±5% (20 to 39.9%) ±3% (40 to 60%) ±5% (60.1 to 80%)
Barometric pressure	0.1 hPa	500 to 1100 hPa	±4 hPa (0 to 50 °C)
Vibration	1 Gal	0 to 2000 Gal	±20%, static acceleration