AD-1641
Air Flow Logger
Instruction Manual

1WMPD4003127AWARNING DEFINITIONS

The warnings described in this manual have the following meanings:
CautionA potentially hazardous situation which, if not avoided, may
result in minor or moderate injury or damage to the instrument.

Note

Information or cautions to use the device correctly.

This manual is subject to change without any prior notice to improve the product.
No part of this manual may be photocopied, reproduced, or translated into anotherlanguage without the prior written consent of the A&D Company, Limited.
Product specifications are subject to change without any obligation on the part ofthe manufacturer.

© 2015 A&D Company, Limited. All rights reserved.

CONTENTS
1. INTRODUCTION ......................................................................................................... 4
1.1 Features ............................................................................................................ 4
1.2 Caution During Use ........................................................................................... 4
2. UNPACKING AND NAMES ......................................................................................... 5
3 DISPLAY AND KEY OPERATIONS ............................................................................. 6
4 HOW TO USE ............................................................................................................. 9
5 AIR FLOW CALIBRATION ........................................................................................ 11
6 COMPARATOR FUNCTION (JUDGMENT/LIMIT） .................................................. 12
7 MANAGEMENT OF ITEMS ....................................................................................... 14
7.1 Interval Time.................................................................................................... 14
7.2 Primary Data ................................................................................................... 14
7.3 Clear ................................................................................................................ 15
7.4 Function (Function Table)................................................................................ 15
7.4.1 About CSV File Name (ID Number)

16

7.5 USB Function Selection................................................................................... 17
8 APPLY FUNCITON SETTING ................................................................................... 17
8.1 Record the Maximum Value of the Air Flow and Vibration (PEAK HOLD) ...... 17
8.2 Connecting to the Weighing Instrument .......................................................... 19
8.2.1 The Management of the Weighing Data

19

8.2.2 The Interval Measurement for the Weighing Instrument

19

8.3 Connecting to The Computer .......................................................................... 20
8.3.1 Supplying the Power from USB Port of Computer

20

8.3.2 Transmitting Data to a Computer (CSV File)

20

8.3.3 Transmitting Data to a Computer (Real-TimeTransmission Mode)

20

8.3.4 Transmitting Only Environmental Data

20

8.3.5 Transmitting Weighing Data and Environmental Data

21

9 REPLACEMENT FOR BATTERIES AND SENSOR UNIT......................................... 22
10 SPECIFICATIONS ..................................................................................................... 23

3

1. Introduction

This manual describes how the AD-1641 works and how to maximize performance.
Please read this manual completely before using the AD-1641.
This device conforms to FCC rules and CE mark EMC directives.

1.1 Features■ The AD-1641 is a data logger equipped with 5 sensors: air flow, temperature, humidity,

barometric pressure and vibration. Air flow sensor part is independent from the
instrument and can be installed to any desired location for measurement.
■ By connecting the output of the AD-1641 to the RS-232C of the insutrument, it ispossible to record weighing data and environmental data sets so data can be saved
without the computer.
■ The AD-1641 has a built-in clock. This allows the date and time to be stored along withthe data.
■ A maximum of 10,000 data can be stored.
■ The environmental data is stored in CSV format and can easily be used by software
such as spreadsheet applications.
■ The stored data can be read by a computer after the AD-1641 is recognized as USB
memory so no special software is required.
■ The AD-1641 can transmit data to programs in the computer (Ex: Excel, etc) using theUSB interface. (Real time transmission mode)■ When connecting any combination of weighing instrument or computers, the power is
supplied for the AD-1641 by them. In this case, AD-1641 batteries are not used.

1.2 Caution During Use
When operating this instrument, be sure to observe the following.

Caution■ Do not open the case to repair the AD-1641. Only authorized personnel can perfrm

repairs. Attempting repairs yourself may cause damage to the AD-1641. and will void
the warranty.

CautionWhen the battery cover and temperature & humidity sensor unit are connected to theAD-1641 and the connectors are firmly seated in the water resistant connector covers,
the AD-1641 is protected against light water exposure (equivalent to IP 65). Please
note that the water resistance will not endure immersion in water or high pressure
runnning water.

4

2. Unpacking and Names■ Main unit

Battery box (back side)

Interval indicator(Replaceable) Temperature& humidity sensor unit
Cable connector forthe air flow sensor
cable
Water resistantconnector cover

Low battery
indicator
Measurementmonitor

RS-232C connector forweighing instruments

Protector

Mini-USB connector for power supply /connection with a PC
■ Air flow sensor

M4 Screw holes(2 parts)■ Cable for the air flow sensor

Cable connector
for connection withthe main unit

D-sub 5 pin (2 m)
AX-KO4777-200■ RS-232C cable for weighing instruments

D-Sub 9 pin (1 m)
AX-KO3571-100■ USB cable

A-mini B type (1.8 m)

D-Sub 25 pin (1 m)
AX-KO3572-100

Din 7pin (1 m)
AX-KO3573-10■ Two batteries for temporary use.

Size:R6 (AA)■ This instruction manual5

3 Display and Key operations

The following five displays can be selected depending on the intended use.

 By pressing the SELECT key repeatedly, five different displays will appear.

Environmental data display screen
Setting screen

Monitor display screen

Trend graph to monitor two data

Trend graph to display the environmental data
Display
 Environmental data display screen (with example data)

Interval time
REC mark
Battery level indicatorT1

28.4 ℃

RH

39.4 %

BAR

1019.7 hPa

AF

0.03 m/s

VIB

1 Gal

Temperature
Relative
humidity
Barometricpressure
Air flow
Vibration
Date, time(REC) 1min 10/18 16 : 565678

Number of data,
Indicator(Max.:10,000)

 Monitor display screen
This screen displays the two environmental data that were specified in the setting screen.
Air FlowTemperature(REC) 1min 10/18 16: 56
5678

Note
■ The battery level indicator is displayed when the battery is used.
It is not displayed when external power is used.

6

Environmental data Trend graph to display the environmental data (with example)
Temperature chart

T1 ℃
RH %
hPa
AF
Gal

Relative humidity chart
Barometric pressure chart
Air Flow line chart
Vibration chart

90min(REC) 1min 10/18 16: 565678

Duration
The duration is scaled
depending on the timeinterval setting.

 Trend graph to monitor two data (with example)
This screen displays the two environmental data that were specified in the setting
screen.
Air flow chart

Temperature chart(REC) 1min 10/18 16: 565678

7Key Operations
ON/OFF key
START/STOP key
SELECT key▲UP key▼DOWN key
ENTER key

Key

Press：Press and release thekey immediately

Long press: Press and hold the
key for 1 second or more.

ON/OFF(DISPLAY)

Shows the current monitor *1
Cancels the setting operation

Turns the AD-1641 on or off.*2

START/
STOP

Starts the interval measurement.
Cancels the setting operation.

Stops the interval recording

SELECT

Changes the current display.

ENTER

Confirm settings recording.

▲UP,
▼DOWN

Changes the parameter.

*1: When the interval recording is executed and the display is off.
*2: The power will be not turned off when executing the interval recording or
power except when battery power used.

8

supplying4 How to use

Step 1 Install the air flow sensor unit in an arbitrary location.
(Since there are two M4 screw holes in the bottom of the Air Flowsensor, it can be fixed to the floor surface.)
Air flow can only bemeasured from thefront.

The connector toconnect the cable on
the air flow sensor

Air Flow

M4 screw holes
Step 2 Connect the air flow sensor and the main unit with the cable.

The cable for air flow sensor

Step 3 Turn on the power.
 In the case of the AC adapter:
The power turns on automatically. Select “EXT.POWER”, press ENTER key.
 In the case of battery drive:
When pressing and holding the ON/OFF key, the AD-1641 will turn on.
For inserting of batteries, please refer to the "9. Replacement for Batteries and Sensor Unit".
Step 4 The basic operation will use the keys below:
 SELECT key (Press):
Switches the display.
 START/STOP key (Press):
Starts the interval recording, and the REC sign will be displayed.
 START/STOP key (Hold down):
Stops the interval recording, and the REC sign will be turned off.
 ON/OFF key (Hold down):
Turn off the AD-1641 (except during the interval recording or when power is supplied
from a source other than batteries)
9Note If the air flow sensor is not connected to the main unit, air flow cannot be measured.
"AF" is only displayed when the air flow sensor cable is connected.
 The air flow sensor only measures air flow that comes from the front.
 If the measurement value is not zero when there is no air flow calibrate the AD-1641
referring to "calibration of wind speed values" in "5. Air Flow Calibration" before using
the AD-1641.
 The air flow measurement battery life is approximately 20 hours.
 Display turn off time can be changed in the "time to display off (POWER SAVE)" of"5.7.4. Function (Function Table)." If there has been no operation for over one minute,the display will turn off automatically when battery power is being used. (The factory
setting) During the interval recording, should the recording data memory become full, theinterval recording stops automatically and, the power is turned off. (The factory default
recording system "FUNCTION" setting is "ONE-TIME".) Temperature and humidity sensor unit is replaceable (life approximately 2 years).

10

5 Air Flow Calibration

You can calibrate the air flow in order to measure under severe management. (Tocalibrate 0 m/s in no air flow.)

Step 1 Please set the air flow sensor in an arbitrary location.
Note

When the air flow sensor direction is changed, zero point may change as well.

Step 2 Please block the entrance and exit of the air flow sensor part with windproof
material
The part ofair flow sensor
Windproof material(such as tape)

Step 3 Select the internal setting (FUNCTION)
from the setting screen to performthe calibration.
Press the SELECT key several times
on the display screen to display the setting
screen in the right figure.

＞ INTERVAL TIME
1min
PRIMARY DATA
T1 / %RH
CLEAR
FUNCTION
USB

Move the ">" mark to "FUNCTION" using▲UP key or ▼DOWN key and press
the ENTER key.
Move the ">" mark to "AF CALIBRATION",
the 4th screen (4 of 5), and press
the ENTER key.
When the right display appears, select Yes
with the ▲UP key or ▼DOWN key to run
the calibration.
Step 4 When the "END" is displayed, the calibration iscomplete.

11

AF CAL?

(0m/s)YES / NO

6 Comparator Function (Judgment/Limit）

This Comparator function compares data with the upper and lower limit values, displays
HI or LO , and sounds the buzzer when the data exceeds the limit value.

 This function can be set for, air flow, temperature, humidity, and barometric pressure.
Step 1 Press the SELECT key several times
on the display screen to display the setting
screen in the right figure.
Step 2 Move the ">" mark to "FUNCTION" using▲UP key or ▼DOWN key and press
the ENTER key.
Step 3 Move the ">" mark and set
the 4 comparator function items.
JUDGMENT ITEM:＞ INTERVAL TIME
1min
PRIMARY DATA
T1 / %RH
CLEAR
FUNCTION
USB

Select from,
AF (Air Flow), T1 (Temperature), %RH (Relative Humidity),or BAR (Barometric Pressure)

JUDGMENT TIME: Select from at once, 3 sec and 10sec
LIMIT-[HI]:Set the upper limit. (Numbers can be either positive or negative.)
Change the digit place with the SELECT key.
Set the digit number by ▲UP or ▼DOWN key, and confirm
using the "ENTER KEY".

LIMIT-[LO]:Set the lower limit. (Numbers can be either positive or negative.)
Change the digit place with the SELECT key.
Set the digit number by ▲UP or ▼DOWN key, and confirm
using the "ENTER KEY".

12

(Example) In the following set, the buzzer will sound when the air flow is below 0.03
m/s for 3 seconds.
JUDGMENT ITEMJUDGMENT TIME
LIMIT-[HI]LIMIT-[LO]：AF(Air Flow)：3sec：+0001.0：+0000.3

The

Environmental data display
screenLO

indicatora

Monitor display screenNote To use the Comparator function, choose the "JUDGEMENT TIME" except for "OFF".
 Please set the upper limit value or lower limit value within the specifications.
 Buzzer will sound from the AIR Flow sensor.
 The "BUZZER" will not sound when the "BUZZER" in the internal setting"FUNCTION" is OFF.

13

7 Management of Items
Setting screen

Item ofparameter list
USB function
selection
Step 1 Display the menu.
SELECT key＞ INTERVAL TIME
1min
PRIMARY DATA
T1 / %RH
CLEAR
FUNCTION
USB

Time of interval
mode
Selection ofmonitored
data
Item to delete
data

Press this key several times to display the menu.

Step 2 Enter to an item of the menu.
▲UP, ▼DOWN key
Selects an item.
ENTER key
Enters into the item.
Step 3 Specify a parameter for the current item.
▲UP, ▼DOWN key
Changes the parameter.
ENTER key
Stores new parameter and proceeds to next item.
ON / OFF key
Cancels and proceeds to next item or menu.
Step 4 Operations after finishing the management.
SELECT key
Proceeds to the intended display
Note■ Selectable items will change depending on operating conditions.

7.1 Interval Time
Specify the time interval with the interval measurement.
This is the same as item "INTERVAL TIME" of the "7.4. Function (Function Table)".

7.2 Primary Data
Specify two items to display from the air flow, temperature, relative humidity,
barometric pressure, vibration and weighing data with "PRIMARY DATA" display or"trend graph" display.
Refer to item "PRIMARY DATA" of the "7.4. Function (Function Table)".

14

7.3 Clear
The AD-1641 can delete stored data with the following keys.
Step 1
Step 2
Step 3

CLEAR key
▲UP, ▼DOWN
ENTER key

Shows the display below
Selects a method.
Performs selected item.

CLEAR

LAST

Deletes the last data

CLEAR
RETURN

ALL

Deletes all data
Returns to the menu

5678

Number of stored data

7.4 Function (Function Table)
The function table can specify each action of the function and the communication of the
AD-1641. Items of each function are stored as a parameter.
These parameters are stored in the AD-1641 even without power.
Item
INTERVAL TIMEPRIMARY DATA

TEMP.UNIT
RECORDING TYPE
BUZZER
DECIMAL POINT
Balance
SettingParameter and Detail
1, 2, 5, 10, 15, 20, 30 seconds,
1,*2, 5, 10, 15, 20, 30, 60 minutes*
T1....................Temperature%RH *..............Humidity
BAR ..…..........Barometric pressure
AF.…...............Air Flow
VIB……...........Vibration
WT……...........Weighing data
°C *…..Celsius°F…. .. Fahrenheit*
ONE-TIME …..Stops
at full memory
ENDLESS…...Overwrites at full memory
OFF ……........Not soundedON *…........…..Sounds buzzer*…….............dot…….............comma.,

BAUD RATE

600, 1200, 2400 *, 4800, 9600, 19200 bps

BITS PARITY

7bits/EVEN*, 7bits/ODD, 8bits/NONE

TERMINATOR

POWER SAVEDATE FORMAT

CR LF * CR

OFF, 30 seconds, 1*, 2, 5 or 10 minutes
yyyy/mm/dd*, mm/dd/yyyy, dd/mm/yyyy
year: yyyy, month: mm, day: dd

DATE SETTING

Example：2015 / 12 / 31

TIME SETTING

Example：13:15:30

15

ID NUMBER

8 characters. Example：ROOM-NO1
The factory setting is a serial number(Refer to "7.4.1.CSV file name")

CONTRAST

25

JUDGMENT
ITEM
Comparator
Function

JUDGMENT
TIME
LIMIT-[HI]LIMIT-[LO]AF CALIBRATIONPEAK HOLD

Weighing value interval
recording mode
WEIGHING DATA
Initialization of internal setting
FUNCTION INIT
RETURN

to 40 * to 50

AF (Air Flow) *T1 (Temperature), %RH (Humidity),BAR (Barometric pressure)(Refer to "6. Comparator Function")
OFF*, at once,3sec or 10sec(Refer to "6. Comparator Function")Set the upper limit of the specification range(Refer to "6. Comparator Function")Set the lower limit of the specification range(Refer to "6. Comparator Function")
Calibrate the zero point of the Air Flow ( 0 m/s )(Refer to "5. Air Flow Calibration")
PeakHold OFF:*...Record the value of theairflow and vibration at
the time of recording
PeakHold ON:….Record the maximum value of the
air flow and vibration in the interval
time(Refer to "8.1. Record the Maximum Value of the
Air Flow and Vibration (PEAK HOLD)")
Every......Save*at the time of receipt of the data
Interval….Save data for each interval time
(Refer to "8.3.2. Transmitting Data to A Computer(CSV File))
It returns the internal settings to factory settings. It
should be noted that the date/time settings are notchanged.
Returns to the menu*：Factory setting
7.4.1 About CSV File Name (ID Number) The CSV file name that is stored in the AD-1641 will be "AD-1641_ID number .CSV" You can create a new name which is easier to manage by changing the ID number.
(Example) ID number：ROOM-NO1
CSV file name：AD-1641_ROOM-NO1.CSV The factory setting is a serial number on the ID number.
 Changing the ID number creates a CSV file with a new name. Leaving old files will
reduce storage free space, may not store up to 10000 data.
Remove all old files using operations " CLEAR ALL" specified in “7.3. Clear”.

16

7.5 USB Function Selection
When connecting AD-1641 and the computer with a USB cable, the screen to selectwhich function to use is displayed. For each function and method of operation, pleasesee "8.3. Connecting to The Computer".
Even when powered by USB cable from the AC adapter, screen for selecting thefunction appears. Please select "EXT.POWER" at this time. In this case, even if otherfunctions are selected, they would be invalidated. When USB cable is not connected,
this function is not available.

To supply power fromthe AC adapter

8 Apply Funciton Setting

8.1 Record the Maximum Value of the Air Flow and Vibration(PEAK HOLD) In the Factory setting "PeakHold OFF", the value of the air flow and vibration to berecorded in the AD-1641 is the value of the interval recording. If "PeakHold ON" modeis set, which records the maximum value of the air flow and vibration, the peak value
during each interval time is held and recorded, the peak value during each interval timeis held and recorded.
 When in the PeakHold mode,
screen.

Pwill be displayed next to AF and VIB of the display(Example) To record at 1minute interval time
Line: Air flow and vibration values received by the AD-1641.
X: The value of air flow and vibration to be recorded in the factory setting"PeakHold OFF"
O: The value of air flow and vibration to be recorded in the peak-hold mode
"PeakHold ON"

17

Interval recording

Interval time
(1 min.)
0.8

16

0.7

14

0.6

12

0.5

10

0.4

8

0.3

6

0.2

4

0.1

2

0

0

[m/s]
[Gal]
[m/s] [Gal]

1

2

3

4

[min]
［min］

Recorded value
Recording time
[min]

1 min

2 min

3 min

4 min

Airflow Vibration Airflow Vibration Airflow Vibration Airflow Vibration

Peak Hold OFF

0.05 m/s 1Gal

0.30 m/s 6 Gal

0.20 m/s 4 Gal

0.05 m/s 1 Gal

Peak Hold ON

0.05 m/s 1Gal

0.75 m/s 15 Gal

0.40 m/s 8 Gal

0.30 m/s 6 Gal

Note
1. In the peak hold mode, the power is always ON to because sampling speed is fast.
("POWER SAVE" in the "7.4. Function (Function Table)" is disabled.)
2. To avoid battery depletion, connecting the AC adapter is recommended.
3. When only the battery power is available, please power OFF by holding down the
ON/OFF key after finishing the measurement.

18

8.2 Connecting to the Weighing Instrument
 The AD-1641 saves the weighing data and environment data at the same time when
receiving the weighing data.
8.2.1 The Management of the Weighing Data
Step 1 Connect the AD-1641 and A&D's weighing instrument using the provided
RS-232C cable.
Step 2 Press the data output key (Ex. PRINT key)of the weighing instrument to transmit
data. The AD-1641 receives data andthe indicator REC is shown for 1second.
RS-232C

cable

Step 3 Stored data is shown for 5 seconds in the measurement monitor.
8.2.2 The Interval Measurement for the Weighing Instrument
 By setting "Weighing value interval recording mode (WEIGHING DATA)" of the
AD-1641 to "Interval" in "7.4. Function (Function Table)", it is possible to save theweighing data sent from the weighing instrument continuously (stream output) at eachinterval.
Weighing data

Step 1 Select the "Interval" of "Weighing value interval recording mode" (WEIGHING
DATA) in "7.4. Function (Function Table)".
WEIGHING DATA：Interval (The factory setting is "Every")Step 2 Connect the Weighing instrument that has been set in the stream output.
In the case that the AD-1641 has received the weighing data, (WT) isdisplayed
at lower left corner of the screen of the AD-1641, and weighing data is displayed．In thiscase, the weighing data is not saved.
Step 3 Pressing the START/STOP key, at the timing set by the interval time, starts saving
weighing data.
Note■ A recording interval might deviate for a few seconds due to time lags in data reception.
■ To set the display format of weighing data or to set the stream output of the weighing
instrument, please refer to the "internal setting" "data format" of each instrument
manual.
■ When the AD-1641 body has received the weighing data, weighing data is displayed.

19

8.3

Connecting to The Computer

8.3.1

Supplying the Power from USB Port of Computer

Step 1 Connect the AD-1641 to the USB port of the computer.
Step 2 Select the item "EXT.POWER" and press the ENTER key so that the
AD-1641 can use power from the USB port.
The AD-1641 is recognized as
USB memory.
The AD-1641 uses powerfrom the USB port.
Real time transmission mode.
8.3.2

Transmitting Data to a Computer (CSV File)

Step 1 Connect the AD-1641 to the USB port ofthe computer. Select "CSV FILE" and press the
ENTER key
Step 2 The AD-1641 is recognized as USB memory
without special software.
AD-1641.CSV
Step 3 The CSV file data can be read by the computer.
Step 4 To delete the CSV file in the AD-1641 use normal computer file operations.
Step 5 Follow the menu "Safely Remove Hardware" when removing the AD-1641
from the USB port of the computer.
8.3.3 Transmitting Data to a Computer (Real-TimeTransmission Mode)
This method is used to transmit the environment and weighing data directly to acomputer via the USB port.
Data is not stored in the AD-1641. (Special software is not necessary)
8.3.4 Transmitting Only Environmental Data
Step 1 Connect the AD-1641 and computer with a USB cable.
The display will change to "8.3.1" display after connecting.
Step 2 Select the item "REAL TIME" and press the ENTER key
to use the real time transmission
mode.
Step 3 Click on a position (cell) on the program (EXCEL etc.)
to receive data.
Step 4 Press and hold (long press) the START/STOP
key to transmit environment data.

20

USB cable

8.3.5 Transmitting Weighing Data and Environmental Data
Step 1 Connect the AD-1641 unit to the weighing instrument with the RS-232c cable
while the AD-1641 is powered off. After that, connect the AD-1641 unit to the PC
with the USB cable. After connecting, the display will change the "8.3.1" display.
Step 2 Select the item "REAL TIME" and press the ENTER key to use the real timetransmission mode.
Step 3 Click on a position (cell) on the program (EXCEL etc.) to receive data.
Step 4 Press the data output key (Ex.:PRINT key) of the weighing instrument to send
weighing data. When the main unit of AD-1641 receives data, a buzzer sounds
and weighing data and environmental data are sent to the computer.
Step 5 Data is displayed for 5 seconds on the measurement monitor.

RS-232C
cable

USB
extension
cable

Note

■ If the timing of the transmission is short, data may not be saved depending on

the PC performance.

21

9 Replacement for Batteries and Sensor Unit
Caution■ Replace with two new batteries of the same type (size AA) and maker whenor
(Low battery mark) is indicated.
■ Do not mix an old battery with a new battery.
■ Insert each battery with its positive (+) and negative (-) terminals properly alignedwith the corresponding symbols in the battery compartment.
■ When the batteries are drained completely,(Low battery mark) does not appear.
■ The battery life is dependent upon the environmental temperature, battery type and usage.
■ Remove the batteries if the device is not to be used for a long time. The batteries mayleak and cause a malfunction.
■ The accessory batteries are for operation check and their life may be short.
■ The temperature & humidity sensor unit is a consumable.
(Replacement is approx 2 years each)
When the sensor life has been exceeded or condensation is present on the sensor,
an abnormal value may be displayed.

Step 1 Turn of the AD-1641. Remove the protector.
Step 1
Step 2 Push the side of the battery cover torelease hook and open it.
Temperature &humidity sensor
Step 3 Insert two new batteries with thepositive (+) and negative (-) terminals
properly aligned with the corresponding
symbols in the battery compartment.
Step 4 Close the battery cover.
Step 5 In case of replacing the temperature &humidity sensor unit, slide it out andreplace with new one.

Step 3

Battery Indicator
Enough remaining battery
Batteries are low. Recommend replacing them.
Batteries are drained. Replace them with new ones.

22

Battery cover
Step 2

10 Specifications
Environmental data
Air FlowTemperature

Relative humidity

Units

Range

Accuracy

0.01 m/s

0.00 to 1.00m/s

0.1 °C

0 to 60 °C±0.05m/s ( 0.10 to 1.00m/s)±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

0.1% RH

0 to 100 %±0.5°C
±5％

( 20
( 20
60.1

to 30°C
to 39.9%,
to 80%

)

±3％

( 40

to 60%)( 0

to 50°C)

Barometricpressure

0.1 hPa

500 to 1100h Pa±4hPa

Vibration

1 Gal

0 to 2000 Gal

Static acceleration±20%[Refer to A&D homepage for details of AD-1641]
A&D homepage：http://www.aandd.co.jp
Connectable equipment
Data capacity
Interval timePower supply
Battery life

For the weighing instrument (our balance-scales) with
RS-232C, please check our websites.
Maximum 10,000 sets (including data & time)
1, 2, 5, 10, 15, 20 or 30 seconds,
1, 2, 5, 10, 15, 20, 30 or 60 minutes
Two alkaline batteries (LR6, AA),AC adaptor, or USB
Approx. 20 hours(Measurement interval:10minutes, alkaline batteries)

Clock accuracy
Adaptable operating
systems

Windows 7/8/10/11 (32 bits/64 bits)

Operating environment

0 °C to 60 °C 85 % RH or less (No condensation)

Dimensions
The sensor unit dimensions
AD-1641 body mass
The air flow sensor mass

Max.±1minute/month

127 (W) x 90 (H) x 36 (D) mm (including the protector)
90 (W) x 90 (H) x 91 (D) mm
Approx. 280 g (including batteries and protector)
Approx. 90 g

23)

1. Back cover: A&D Global

A&D Company, Limited

3-23-14 Higashi-Ikebukuro, Toshima-ku, Tokyo 170-0013, JAPAN
Telephone: [81] (3) 5391-6132
Fax: [81] (3) 5391-1566

A&D ENGINEERING, INC.

47747 Warm Springs Blvd, Fremont, California 94539, U.S.A.
Tel: [1] (800) 726-3364
Weighing Support:[1] (888) 726-5931

Inspection Support:[1] (855) 332-8815

A&D INSTRUMENTS LIMITED

Unit 24/26 Blacklands Way, Abingdon Business Park, Abingdon, Oxfordshire OX14 1DY United Kingdom
Telephone: [44] (1235) 550420
Fax: [44] (1235) 550485

A&D AUSTRALASIA PTY LTD

32 Dew Street, Thebarton, South Australia 5031, AUSTRALIA
Telephone: [61] (8) 8301-8100
Fax: [61] (8) 8352-7409

A&D KOREA Limited

한국에이.엔.디(주)OOO A&D RUS

OOO "ЭЙ энд ДИ РУС"서울특별시 영등포구 국제금융로6길33 (여의도동) 맨하탄빌딩 817 우편 번호 07331( 817, Manhattan Bldg., 33. Gukjegeumyung-ro 6-gil, Yeongdeungpo-gu, Seoul, 07331 Korea )전화: [82] (2) 780-4101
팩스: [82] (2) 782-4264

Почтовый адрес:121357, Российская Федерация, г.Москва, ул. Верейская, дом 17Юридический адрес: 117545, Российская Федерация, г. Москва, ул. Дорожная, д.3, корп.6, комн. 8б
( 121357, Russian Federation, Moscow, Vereyskaya Street 17 )тел.: [7] (495) 937-33-44
факс: [7] (495) 937-55-66

A&D Instruments India Private Limited

D-48( D-48, Udyog Vihar, Phase- , Gurgaon - 122016, Haryana, India ): [91] (124) 4715555: [91] (124) 4715599

A&D SCIENTECH TAIWAN LIMITED.

A&D台灣分公司 艾安得股份有限公司

台湾台北市中正區青島東路 5 號 4 樓
( 4F No.5 Ching Tao East Road, Taipei Taiwan R.O.C. )Tel : [886](02) 2322-4722
Fax : [886](02) 2392-1794

A&D INSTRUMENTS (THAILAND) LIMITED บริษัท เอ แอนด์ ดี อินสทรูเม้นท์ (ไทยแลนด์) จำกัด
168/16 หมู่ที่ 1 ตำบลรังสิต อำเภอธัญบุรี จังหวัดปทุมธานี 12110 ประเทศไทย
( 168/16 Moo 1, Rangsit, Thanyaburi, Pathumthani 12110 Thailand )Tel : [66] 20038911