Hioki 3911-20 Instruction Manual

INSTRUCTION MANUAL

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3911-20

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COMMUNICATION BASE

Contents

Introduction i

Inspection i

Safety Notes ii

Notes on Use iii

Chapter 1 Overview 1

1.1 Product Overview 1

1.2 Name and Functions of Parts

Chapter 2 Application 3

2.1 Replacing the Battery 3

2.2 Installing Application Software

2.3 Connecting and Setting PC to the 3911-20

2.4 Connecting the 3911-20 with Logger

Chapter 3 Transferring Data 9

3.1 Measuring with Logger 9

3.2 Setting the 3911-20

3.3 Sending Setting Data

3.4 Receiving Measurement Data

3.5 Sending Measurement Data

3.6 Confirming and Clearing Loaded Data

10

11

12

13

14

2

5

6

7

Chapter 4 Specifications 15

Chapter 5 Maintenance and Service 17

_____________________________________________________________________

Introduction

Thank you for purchasing the HIOKI "3911-20
COMMUNICATION BASE." To obtain maximum
performance from the product, please read this manual first,
and keep it handy for future reference.

Inspection

When you receive the product, inspect it carefully to ensure
that no damage occurred during If damage is evident, or if
it fails to operate according to the specifications, contact
your dealer or Hioki representative.

Accessories

Instruction Manual
LR03 alkaline battery X 4
COMMUNICATION UTILITY Operation Guide
CD-R (COMMUNICATION UTILITY)

i

Note on shipping

Use the original packing materials when reshipping the
product, if possible.

Registered trademarks

Windows is a registered trademark of Microsoft
Corporation.
Pentium is a registered trademarks of Intel Corporation.

The latest version of COMMUNICATION UTILITY is
now available at our web site for downloading. Visit
our site at: http://www.hioki.co.jp/

______________________________________________________________

Inspection

ii

_____________________________________________________________________

SafetyNotes

This product is designed to conform to IEC 61010

WARNING

Safety Symbols

Safety Standards, and has been thoroughly tested for
safety prior to shipment. However, mishandling during
use could result in injury or death, as well as damage
to the product. Be certain that you understand the
instructions and precautions in the manual before use.
We disclaim any responsibility for accidents or injuries
not resulting directly from product defects.

This manual contains information and warnings essential
for safe operation of the product and for maintaining it in
safe operating condition. Before using the product, be sure
to carefully read the following safety notes.

The symbol printed on the product indicates that the
user should refer to a corresponding topic in the
manual (marked with the
relevant function.
In the manual, the symbol indicates particularly
important information that the user should read before
using the product.

symbol) before using the

Indicates DC (Direct Current).

The following symbols in this manual indicate the relative
importance of cautions and warnings.

Indicates that incorrect operation presents a

WARNING

CAUTION

______________________________________________________________

Safety Notes

significant hazard that could result in serious injury or
death to the user.

Indicates that incorrect operation presents a
possibility of injury to the user or damage to the
product.

_____________________________________________________________________

iii

Notes on Use

Follow these precautions to ensure safe operation and to
obtain the full benefits of the various functions.

CAUTION

The unit should always be operated in a range from -20
to 70 and 80% RH or less. During data transfer when
connected to personal computer (using RS-232C),
operating temperature range is from 0
If used outside the specified environmental ranges for
operation (or storage), the operation of the unit cannot be
guaranteed.
This product is not designed to be entirely water- or dust­proof. To avoid damage, do not use it in a wet or dusty
environment.
Take care to avoid condensation. In particular, if there is a
sudden change of temperature (for example moving from a
cold place to a warm one), condensation is likely to occur.
Do not use the product where it may be exposed to
corrosive or combustible gases. The product may be
damaged or cause an explosion.
To avoid corrosion from battery leakage, remove the
batteries from the product if it is to be stored for a long
time.
Leaving the unit connected to an activated personal
computer hastens battery discharge.
When not using the unit, disconnect it from personal
computer.

to 40 .

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Notes on Use

iv

_____________________________________________________________________

Care and handling of CD-R

To keep disc clean from finger prints and prevent label
fading, carefully hold disc on the outer edge when
handling.
To prevent damage to label, do not expose disc to
alcohol based solvents or water.
When writing on label, use an oil base felt pen. Do not
write with a ball point pen or other hard tipped pens to
prevent scratching disc.
To prevent disc warping, do not expose disc to direct
sunlight, high temperature and high humidity.

Note on Used for COMMUNICATION UTILITY

Before using the software, please read these notes carefully.

HIOKI E.E. Corporation is the author of
COMMUNICATION UTILITY.
Except for the purposes of processing data from the
3911-20 or controlling the 3911-20, copying,
reproduction, or amendment in whole or in part of
COMMUNICATION UTILITY is prohibited by law.
For the purposes of product development,
COMMUNICATION UTILITY is subject to upgrading
without notice.
To publish material referencing COMMUNICATION
UTILITY, the prior consent of HIOKI is required. The
trademark "HIOKI" may not be used.
HIOKI cannot accept any responsibility whatever for the
results of a customer's operation of COMMUNICATION
UTILITY.

______________________________________________________________

Notes on Use

_____________________________________________________________________

1

Chapter 1

Overview

1.1 Product Overview

The 3911-20 COMMUNICATION BASE loads data from
logger series and sends loaded data to personal computer.
Packaged application software allows personal computer to
load data from the 3911-20 and analyze loaded data.

Features

(1) Capable of collecting up to 16 channels of data when

connected to logger.

(2) Capable of storing setting conditions (clock, interval,

recording start time, etc.) in memory and loading
settings to logger when connected to logger.

(3) LED power indicator indicates battery replacement.
(4) Packaged software allows personal computer to load up

to 16 channels of data from logger series. Loaded data
can be applied to display graphs and calculate
maximum value, minimum value, etc.

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Overview

2

②

①

③

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1.2 Name and Functions of Parts

1. SEND button Sends the 3911-20 settings to logger
series.

2. RECEIVE

button

3. Optical data

transfer port

Loads recorded data in logger to the
3911-20.

Enables optical data transfer to logger
series.

LED condition

POWER Turns on when button is pressed or

connected to personal computer. Starts
blinking to indicate weak batteries.

TRANSMITTING Blinks during data transfer.

ERROR Starts blinking to indicate data transfer

error. Press either SEND button or
RECEIVE button to correct error.

FULL Blinks to indicate when all 16 channels

(8 channels maximum for the 3636-20/
3637-20/3638-20/3639-20/3640-20/
3645-20) of data have been loaded to
the 3911-20.

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Overview

_____________________________________________________________________

3

Chapter 2

Application

2.1 Replacing the Battery

To avoid electric shock when replacing the batteries,

WARNING

first disconnect the cable from the object to be
measured.
Do not mix old and new batteries, or different types of
batteries. Also, be careful to observe battery polarity
during installation. Otherwise, poor performance or
damage from battery leakage could result.
Handle and dispose of batteries in accordance with
local regulations.

Battery Indicator

Under normal conditions LED power indicator is on. When
batteries are weak, LED power indicator starts blinking.
LED power indicator turns off after approximately 15
seconds with no operation.
When LED is blinking, data transfer is enabled with
personal computer but not available to logger.

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Application

4

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Note on Battery Replacement

Replace batteries when LED Power indicator is OFF.
Be sure to send data to be saved to personal computer
before replacing batteries although the 3911-20 data and
clock settings are saved for approximately one minute after
batteries are removed.
Do not remove batteries when LED power is on or blinking
to avoid losing the 3911-20 data and clock settings. LED
power indicator is turned off after approximately 15
seconds with no operation.

(1) Remove cover. Verify polarity and install four new

LR03 alkaline batteries

(2) Close cover.

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Application

_____________________________________________________________________

5

2.2 Installing Application Software

Packaged application software must be installed in personal
computer to use the 3911-20 and logger series.

Operating environment

Computer with Pentium 90 MHz CPU or higher
Microsoft Windows98/Me/2000/XP/Vista (32 bit version)
At least 32 MB of main memory
A display with 800 X 600 dot resolution
At least 256 colors
At least 4 MB of empty space on the hard disk
COM port is necessary

Recommended environment

Computer with Pentium 200 MHz CPU or higher
Microsoft Windows2000/XP/Vista (32 bit version)
32 MB of main memory
A display with 800 X 600 dot resolution
At least 65536 colors
At least 4 MB of empty space on the hard disk
COM port is necessary

See COMMUNICATION UTILITY operation
guide to install and use application
software.

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Application

6

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2.3 Connecting and Setting PC to the
3911-20

(1) Use RS-232C Cross Cable (the 3911-20 side: D-SUB9

pin) to connect personal computer to the 3911-20.

(2) Start up COMMUNICATION UTILITY from the

Windows start menu.

(3) Go to Communications on the menu bar and choose

Select Communication Port to specify the same port
(COM1 to COM6) as serial port on personal computer
connected to the 3911-20.

The same communication port settings
remain valid until communication is
reestablished.
Serial port is designated for
communications. Locate the mark
port in the back of personal computer.

(4) Go to Communications and select Set Time to send

time of personal computer to the 3911-20. Make sure to
set correct time in personal computer before sending.
After installing and/or replacing batteries, make sure to
connect personal computer to the 3911-20 and set
current time in the 3911-20 with COMMUNICATION
UTILITY before using the 3911-20.

Corresponded cable

The 9637 RS-232C CABLE (1.8 m)

Optional connection cables
compatible with the 3911-20
(PC/AT)
Connection: reversed

D-sub

9pin female

1DCD
2RxD
3TxD
4DTR
6DSR
7RTS
8CTS
5 GND
SHELL

______________________________________________________________

Application

D-sub

9pin female

1DCD
2RxD
3TxD
4DTR
6DSR
7RTS
8CTS
5 GND
SHELL

_____________________________________________________________________

7

2.4 Connecting the 3911-20 with Logger

Align and insert logger prongs to the 3911-20 slots and
fasten logger securely to the 3911-20.

Logger prong

Improper connection between logger and the 3911-20
results communications failure and the 3911-20 error
indicator LED appears.

When error occurs in the 3911-20, Press SEND
button or RECEIVE button on the 3911-20 to
reset. Logger returns to normal status. Open
interval setting display again (INTVL displayed)
and restart communication.

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Application

8

_____________________________________________________________________

______________________________________________________________

Application

_____________________________________________________________________

Chapter 3

Transferring Data

3.1 Measuring with Logger

Steps for basic measurement with logger

9

Prepare to measure.

See individual logger instruction
manual.

Set the 3911-20 measurement conditions.

Use personal computer with application software COMMUNICATION UTILITY to set
measurement conditions. After completing, measurement conditions are sent to the
3911-20.

Send setting conditions from the 3911-20 to logger.

Connect the 3911-20 with logger and send setting conditions.

Measure data.

To start measurement with logger, options are manual start and prescheduled start.
To end measurement, options are manual stop and one time stop.

Retrieve measurement data from logger with the 3911-20.

Connect the 3911-20 and logger to retrieve measurement data.

See individual logger instruction manuals.

Load batteries in logger and the 3911-20.

Connect sensor and connection cable, etc.

Install application software included with the 3911-20.

Retrieve measurement data from the 3911-20 with personal computer.

Connect personal computer and the 3911-20 to retrieve measurement data.
Analyze and save measurement data with COMMUNICATION UTILITY.

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Transferring Data

10

_____________________________________________________________________

3.2 Setting the 3911-20

Common settings

Time
Interval
Recording method
Start control

(1) Connect personal computer to the 3911-20.

(See Section 2.3,"Connecting and Setting PC to the
3911-20")

(2) Start up COMMUNICATION UTILITY on personal

computer.

(3) Go to 'Communications' on the menu bar and choose

'Set Measurement Conditions'.

(4) When measurement condition setting window is open,

go to '3911 setting item' and configure common logger
series settings such as interval and recording
preferences.

(5) After setting, select 'Send' to send settings to the 3911-

20.

Each logger requires specific settings and
measurement conditions.
See Measurement condition settings in
COMMUNICATION UTILITY operation guide.

______________________________________________________________

Transferring Data

_____________________________________________________________________

3.3 Sending Setting Data

Common settings

Time
Interval
Recording method
Start control

(1) Press logger INTERVAL button lightly to display LCD.
(2) When REC mark or clock mark is displayed on logger

LCD, press REC/STOP button for more than one
second to stop recording. During recording or waiting
for recording start time, error occurs.

(3) Press logger INTERVAL button to open interval setting

display (INTVL displayed).

(4) Connect the 3911-20 to logger

series.

11

(5) Press the SEND button on the 3911-20 momentarily so

that the LED lights, then press and hold the same
button for one second to transfer logger series common
settings to the logger.

Previously recorded logger data is erased
when recording is resumed. Be sure to load
data to be saved to the 3911-20 or to
personal computer before recording.
Communication with the 3911-20 is available
even when interval setting display is not
displayed except during recording or waiting
for recording start time. However, data
transfer is not possible when logger is set
sleep.

______________________________________________________________

Transferring Data

12

_____________________________________________________________________

3.4 Receiving Measurement Data

Collected data
(with serial number )
Comments (when set)

(1) Press logger INTERVAL button lightly to display LCD.
(2) When REC mark or clock mark is displayed on logger

LCD, press REC/STOP button for more than one
second to stop recording. During recording or waiting
for recording start time, error occurs.

(3) Press logger INTERVAL button to open interval setting

display (INTVL displayed).

(4) Connect the 3911-20 to logger

series.

(5) Press the RECEIVE button on the

3911-20 momentarily so that the
LED lights, then press and hold the
same button for one second to
transfer measurement data from the logger to the 3911-

20.
Logger type determines number of channels applicable
in the 3911-20.

Model 3631-20, 3641-20 8000 data X 16 ch (8 units)

Model 3632-20 to 3635-20 16000 data X 16 ch (16 units)

Model 3636-20, 3638-20 (1 ch) 32000 data X 8 ch (8 units)

Model 3636-20, 3638-20 (2 ch) 16000 data X 16 ch (8 units)

Model 3637-20, 3639-20
Model 3640-20, 3645-20

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Transferring Data

32000 data X 8 ch (8 units)

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13

3.5 Sending Measurement Data

Collected data

(up to 16 channels)

Comments

(when set)

(1) Connect personal computer to the 3911-20.

(See Section 2.3,"Connecting and Setting PC to the
3911-20")

(2) Start up COMMUNICATION UTILITY.
(3) Go to 'Communication' on the menu bar and choose

'Load Data from 3910,11'.
Sends measurement data from the 3911-20 to personal
computer.

Saving Measurement Data
(1) After measurement data is sent from the 3911-20 to

personal computer, data is displayed in graph
automatically.

(2) To save data, go to 'File' on the menu bar and choose

'Save'.

(3) When window appears, select save format and save

data.
Binary: Saves data in format compatible to

COMMUNICATION UTILITY.

Text : Saves data in text format that can be exported

to spread sheet and other application software.
Cannot be exported to COMMUNICATION
UTILITY.

See Save measurement data in
COMMUNICATION UTILITY operation guide to
save data.

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Transferring Data

14

g

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3.6 Confirming and Clearing Loaded Data

Press SEND button and Load button briefly simultaneously
(within one second) .
With a beep sound, LED turns on or starts blinking.
Number of channels loaded when LED is on or blinking is
displayed. See below for details.
When LED is on or blinking, press SEND button for more
than one second to clear all data with a beep sound.

:OFF

: Blinkin

:ON

No data is saved.

Data equal to 1 channel is saved.

Data equal to 2 channel is saved.

Data equal to 3 channel is saved.

Data equal to 4 channel is saved.

Data equal to 5 channel is saved.

Data equal to 6 channel is saved.

Data equal to 7 channel is saved.

Data equal to 8 channel is saved.

Data equal to 9 channel is saved.

Data equal to 10 channel is saved.

Data equal to 11 channel is saved.

Data equal to 12 channel is saved.

Data equal to 13 channel is saved.

Data equal to 14 channel is saved.

Data equal to 15 channel is saved.

Data equal to 16 channel is saved.

With Models 3636-20 and 3638-20, when
measurement data from a single channel (CH1 or
CH2) is received by the 3911-20, the LEDs on
the 3911-20 indicate that data for two channels is
present.

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Transferring Data

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Chapter 4

Specifications

15

LED condition

Buzzer sound

Connection

Transfer rate
(reference value)

Recording capacity

Power supply

Maximum rated
power

Battery life

Dimensions

Mass

Location for use

Operate
temperature and
humidity range

POWER, TRANSMITTING, ERROR,
FULL

Once (when executing key click)
Three times (when error occurs)

Logger: Infrared optical data transfer
(synchronous serial connection, three wire
type)
Personal computer: RS-232C
(asynchronous serial connection, two wire

type) 

The 3911-20 to Logger 250 data/s
The 3911-20 to PC 1000 data/s (19200
bps)

16 channels
(16,000 data X 16 channels)
8 channels
(32,000 data X 8 channels)

LR03 alkaline battery 1.5 V X4

0.2 VA

About 80 days (at 20 , when not in
operation)
Transferring data about 100 times (at 20

, receiving and sending maximum
16000 X 16 channels of data from logger
to personal computer)

Approx.68.5W X 92H X 36D mm
(excluding projections)
(2.7"WX 3.62"H X 1.42"D)

Approx.150 g (5.3 oz.)
(including batteries)

Indoors, altitude up to 2000 m (6562-ft.)

-20 to 70 (-4 to 158 ), 80% RH or less
(no condensation)
0to40
transfer with personal computer using RS­232C

(32 to 104 ) during data

______________________________________________________________

Specifications

16

_____________________________________________________________________

Storage
temperature and
humidity range

Water Resilience

Accessories

Option

Standards

Applying 

Safety
EMC

-20 to 70 (-4 to 158 ), 80% RH or less
(no condensation)

none

LR03 alkaline battery X 4
Instruction Manual
CD-R

9637 RS-232C CABLE

EN61010 Pollution Degree 2
EN61326

______________________________________________________________

Specifications

_____________________________________________________________________

17

Chapter 5

Maintenance and

Service

Cleaning

To clean the product, wipe it gently with a soft cloth
moistened with water or mild detergent. Never use solvents
such as benzene, alcohol, acetone, ether, ketones, thinners
or gasoline, as they can deform and discolor the case.

Service

If the product seems to be malfunctioning, confirm that the
batteries are not discharged before contacting your dealer or
Hioki representative.
Pack the product carefully so that it will not be damaged
during shipment, and include a detailed written description
of the problem. Hioki cannot be responsible for damage
that occurs during shipment.

______________________________________________________________

Maintenance and Service

18

_____________________________________________________________________

Troubleshooting

Problem

Button press does not turn LED power indicator on.

Check and see if the batteries are properly installed and not weak.

Problem

Button press does not enable sending settings to logger nor receiving
data from logger.

Is logger properly connected to the 3911-20?
When logger is not properly connected, error occurs during optical
data transfer turning LED error indicator on.

Is LED power indicator blinking?
When batteries are weak, LED power indicator starts blinking and
communication with logger cannot be established.

Is logger in recording status?
When logger is recording, data cannot be transferred. Executing
data transfer during recording results in error and LED error
indicator starts blinking.

Is logger set to sleep?
Press logger INTERVAL button and display interval setting display.

Are logger batteries weak?
Communication cannot be established when logger batteries are
weak. Replace with new batteries.

Is LED datafull indicator blinking?
LED datafull indicator starts blinking to indicates maximum data
has been loaded to the 3911-20. Transfer data to personal
computer. Although LED datafull indicator is not blinking, when
the 3911-20 already has 15 channels of data attempting to load data
from the 3631-20 (2 ch), the 3641-20 (2 ch), the 3636-20/3637­20/3638-20/3639-20/3640-20/3645-20 results in error and LED
error indicator starts blinking.

When interval setting saved in the 3911-20 is set at 1 second,
interval setting cannot be sent to the 3631-20 to the 3635-24/-25/­26 and the 3641-20 which minimum interval is at 2 seconds.

______________________________________________________________

Maintenance and Service

_____________________________________________________________________

-MEMO-

19

______________________________________________________________

Maintenance and Service

20

_____________________________________________________________________

-MEMO-

______________________________________________________________

Maintenance and Service

HIOKI 3911-20 COMMUNICATION BASE

Instruction Manual

Publication date: May 2008 Revised edition 9

Edited and published by HIOKI E.E. CORPORATION

Technical Support Section

All inquiries to International Sales and Marketing Department

81 Koizumi, Ueda, Nagano, 386-1192, Japan

TEL: [phone] / FAX: [phone]

E-mail: [e-mail]

URL http://www.hioki.com/

Printed in Japan 3911A981-09

All reasonable care has been taken in the production of this manual,
but if you find any points which are unclear or in error, please
contact your supplier or the International Sales and Marketing
Department at HIOKI headquarters.
In the interests of product development, the contents of this manual
are subject to revision without prior notice.
The content of this manual is protected by copyright. No
reproduction, duplication or modification of the content is permitted
without the authorization of Hioki E.E. Corporation.

HEAD OFFICE

81 Koizumi, Ueda, Nagano 386-1192, Japan
TEL [phone] / FAX [phone]
E-mail: [e-mail] / URL http://www.hioki.com/

HIOKI USA CORPORATION

6 Corporate Drive, Cranbury, NJ 08512, USA
TEL [phone] / FAX [phone]

3911A981-09 08-05H

Printed on recycled paper