Hioki 3639-20 Instruction Manual

INSTRUCTION MANUAL

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PULSE LOGGER

Contents

Introduction i
Inspection i
Safety Notes ii
Notes on Use v
Measurement Flow Chart and Reference Guide vi

Chapter 1 Product Outline 1

1.1 Name and Functions of Parts 2

1.2 Interval and Maximum Recording Time

1.3 Battery Life

Chapter 2 Set Up 5

2.1 Replacing the Battery 5

2.2 Power Save Function

2.3 Setting Current Time

2.4 Connecting Sensor Cable

Chapter 3 Settings 11

3

4

7

8

9

3.1 Setting Items 11

3.2 Manual Setting

3.3 Setting by 3911-20

3.4 Application Example

3.4.1 Connecting the Product to a Rain Gauge 20

3.4.2 Connecting the Product to an Open-Collector
(Open-Drain) Output Device

16

17

20

22

Chapter 4 Specifications 23

4.1 Measurement Specifications 23

4.2 Functional Specifications

4.3 Other Specifications

23

24

Chapter 5 Maintenance and Service 25

_____________________________________________________________________

Introduction

Thank you for purchasing the HIOKI 3639-20 PULSE
LOGGER. 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 shipping. If damage is
evident, or if it fails to operate according to the
specifications, contact your dealer or Hioki representative.

Accessories

9629 CONNECTION CABLE (for measurement)
9632 CONNECTION CABLE (for alarm output)
Instruction Manual
LR03 alkaline battery X 4
(built into this product, for monitor)

i

Testing monitor batteries installed in the
unit may possibly be weak. Replace
batteries before extended measurement
usage.

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Inspection

ii

R

_____________________________________________________________________

SafetyNotes

This product is designed to conform to IEC 61010
Safety Standards, and has been thoroughly tested for

DANGE

Safety Symbols

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.

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iii

Accuracy

We define measurement tolerances in terms of dgt. (digit)
values, with the following meanings:

dgt.

(resolution)
The smallest displayable unit on a digital measuring
product, i.e., the input value that causes the digital
display to show a "1".

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Safety Notes

iv

_____________________________________________________________________

Measurement categories (Overvoltage categories)

This product complies with CAT I safety requirements.
To ensure safe operation of measurement products, IEC 61010
establishes safety standards for various electrical environments,
categorized as CAT I to CAT IV, and called measurement
categories. These are defined as follows.

CAT

Secondary electrical circuits that are connected

Ⅰ

to a wall outlet through a transformer or similar
device.

CAT

Primary electrical circuits in equipment

Ⅱ

connected to a wall outlet via a power cord
(portable tools, household appliances, etc.)

CAT

Primary electrical circuits of heavy equipment

Ⅲ

(fixed installations) connected directly to the
distribution panel, and feeders between the
distribution panel and outlets.

CAT

The circuit from the service drop to the service

Ⅳ

entrance, then to the power meter and to the
primary overcurrent protection device.

Higher-numbered categories correspond to electrical environments
with greater momentary energy. So a measurement device
designed for CAT III environments can endure greater momentary
energythanadevicedesignedforCATII.
Using a measurement product in an environment designated with
a higher-numbered category than that for which the product is
rated could result in a severe accident, and must be carefully
avoided. Never use a CAT I measuring product in CAT II, III, or
IV environments. The measurement categories comply with the
Overvoltage Categories of the IEC60664 Standards.

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Safety Notes

_____________________________________________________________________

Notes on Use

Follow these precautions to ensure safe operation and to

obtain the full benefits of the various functions.

The maximum input voltage is 45 V DC. Attempting

v

WARNING

to measure voltage in excess of the maximum input
could destroy the product and result in personal
injure or death.
To avoid electric shock, do not allow the product to
get wet, and do not use it when your hands are wet.

CAUTION

Before using the product the first time, verify that it
operates normally to ensure that the no damage occurred

during storage or shipping. If you find any damage, contact
your dealer or Hioki representative.
Before using the product, make sure that the insulation on
the cables is undamaged and that no bare conductors are
improperly exposed. Using the product in such conditions
could cause an electric shock. Replace the test leads and
probes with the specified Hioki Model 9629 or 9632.
To avoid damaging the product, do not drop it or subject it
to intense shock.
This product is not designed to be entirely water- or dust­proof. To avoid damage, do not use it in a wet or dusty
environment.
Do not store or use the product where it could be exposed
to direct sunlight, high temperature or humidity, or
condensation. Under such conditions, the product may be
damaged and insulation may deteriorate so that it no longer
meets specifications.
If the protective functions of the product are damaged,
either remove it from service or mark it clearly so that
others do not use it inadvertently.
Adjustments and repairs should be made only by
technically qualified personnel.

Use only the specified connection cable. Using a
non-specified cable may result in incorrect
measurements due to poor connection or other
reasons.

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Notes on Use

vi

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Measurement Flow Chart and Reference Guide

Is there sufficient

battery charge remaining

to operate 3639-20?

Setting current time

Connecting sensor

Setting 3639-20
stand-alone

・Interval

See 3.2.

Press REC/STOP
button to start
measurement.

See 3.2.

Make the ON/OFF
setting of the Power
Save function.
(When the Power
Save function is OFF
before measurement
starts)

When recording data
reaches 32000,
measurement stops.

Replace batteries

Set current time when using 3639-20 for the
first time or replacingbatteries. See 2.3.

See 2.4.

Setting 3639-20 with
3911-20

・Interval
・Current time
・Start control
・Recording method

Quick start

Starts measurement
immediately.

One time

Make the ON/OFF setting of the Power Save function.
(When the Power Save function is OFF before
measurement starts)

When recording data exceeds 32000, it overwrites
previously recorded data.

Press REC/STOP button to stop measurement.

Setting 3639-20 with 3911-20 and PC

・Interval ・Current time
・Start control ・Comment
・Recording method
・Alarm upper-limit value
・Alarm output on/off
・Filter setting

No

recordingmethod

Settingstart control

Start control options

Starts measurement at
prescheduled time.

Setting

Endless

Yes

See 2.1.

Prescheduled start

After measurement is complete, disconnect sensor cables.
Use 3911-20 to send measurement data to personal computer.
(See 3911-20 instruction manual.)

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Measurement Flow Chart and Reference Guide

_____________________________________________________________________

1

Chapter 1

Product Outline

The 3639-20 PULSE LOGGER counts and records the

pulses of pulse signals (mechanical contact inputs of

switches, relays, etc., or voltage inputs from 1.5 V to 45 V)

at a specified interval. It can be used for a wide variety of

devices that deliver pulse signals, such as rain gauges, flow

meters, and the like. As data is stored in a nonvolatile

memory, it is not lost even if the batteries run out or are

removed for replacement.

3639-20 PULSE LOGGER cannot be set with 3910­20 COMMUNICATION BASE.
Use 3911-20 COMMUNICATION BASE to set
3639-20.

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Chapter 1Product Outline

2

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1.1 Name and Functions of Parts

1

2

3

5

6

4

1. LCD Displays measurement value and settings.

2. Optical data transfer
ports

3. INTERVAL button Calls up interval setting display to set interval.

4. Connection terminal Connects 9629 CONNECTION CABLE.

5. REC/STOP button Pressing more than 1 second initiates or stops

(SELECT) button Interval is selected in interval setting display.

6. Alarm output
terminal

Enables optical data transfer to 3911-20.

Make the ON/OFF setting of the Power Save
function.
(When the Power Save function is OFF before
measurement starts)

recording.

Connects 9632 CONNECTION CABLE and
outputs alarm signal (open drain output).
(When it was set up in alarm output on.

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Chapter 1Product Outline

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1.2 Interval and Maximum Recording Time

Interval and maximum recording time are as follows.

Maximum recording time is limited by battery charge
condition.

The number of data that can be recorded on one single

product of 3639-20 PULSE LOGGER is 32,000.

INTVL Maximum Recording Time

1s 8h53min20s

2s 1 day 20 h 26 min 40 s

5s 1 day 20 h 26 min 40 s

10 s 3 day 16 h 26 min 40 s

15 s 5 day 13 h 20 min

20 s 7day9h46min40s

30 s 11 day 2 h 40 min

1min 22 day 5 h 20 min

2min 44 day 10 h 40 min

5min 111 day 2 h 40 min

10 min 222 day 5 h 20 min

15 min 333 day 8 h

20 min 444 day 10 h 40 min

30 min 666 day 6 h

60 min 1333 day 8 h

1 day 32000 day

3

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Chapter 1Product Outline

4

_____________________________________________________________________

1.3 Battery Life

The service life of the batteries used in the 3639-20 varies
depending on the recording interval, power save function
setting, measurement-value display during recording,
temperature and humidity, and the like. The table below
gives the approximate battery service lives with an average
pulse count of 5 or less per second, and at 23

Power Save
Function

Recording Interval

Battery Life

During Recording (when measured at

the no-voltage contacts)

ON OFF

-- 1 sec

15 days or

longer

4months

or longer

10 min.

or more

6months

or longer

5 .

Standby for
Recording Start
(Power Save
Function)

15 days or

longer

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Chapter 1Product Outline

_____________________________________________________________________

5

Chapter 2

Set Up

2.1 Replacing the Battery

To avoid electric shock when replacing the batteries,

WARNING

first disconnect the connection cable from the object to
be measured.
During battery replacement, use caution not to put any
foreign materials such as a metal object into the
product to avoid damage to the product.
Before using the product after replacing the batteries,
replace the cover and screw.
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.

CAUTION

When exchanging the batteries, the circuit may sometimes
short circuit due to static electricity. As far as possible, do not
touch the base board with bare hands.

The installation of new batteries ensures more than six

months of recording (with the Power Save function turned
ON, the recording interval set to 10 seconds or longer, no­voltage contact input with an average pulse count of 5 or
less per second, and at 23

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5 .

Chapter 2Set Up

6

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Display of remaining battery power

The indicator of the remaining battery
power disappears successively from the
right as the remaining power expires.

Indicates the time remaining until battery
replacement
Recording cannot be started.
If the indicator looks like this during
measurement, the measurement will be
interrupted.

Replacing the Battery
(1) Remove back cover screw to remove cover. Verify

polarity and install four new LR03 alkaline batteries.

(2) Fit cover properly and tighten screw.

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Chapter 2Set Up

_____________________________________________________________________

(

)

7

2.2 Power Save Function

If no recording session is under way, the screen display is

automatically turned off approximately 15 seconds after the
last key entry (Sleep). However, the recording-interval setup
screen will not enter the Sleep state, even in the absence of

key operation.

During recording

Power Save function set to ON

The Power Save function mode is set to ON

Recording-Interval

SetupScreen

in the initial
settings. If the Power Save function is disabled, the battery
service life will be approximately 15 days. For the setting
procedure for the Power Save function, refer to the "3911­20 COMMUNICATION BASE Instruction Manual" and the
Measurement Guide.
When the Power Save function is set to ON (enabled)
before measurement starts, the measurement-value display
turns off 15 seconds after measurement starts, and the unit
automatically enters the Power Save function. To turn on
the measurement-value display again, press any key. The
measurement-value display turns on, then turns off after 15
seconds, and the unit automatically enters the Power Save
function again.
When the Power Save function is set to OFF (disabled)
before measurement starts, pressing the INTERVAL button
turns the Power Save function ON/OFF. When the
measurement-value display is on, the Power Save function
is set to OFF. When the measurement-value display is off,
the Power Save function is set to ON. For an extended
measurement operation, set the Power Save function to ON
(measurement-value display turned off).

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Chapter 2Set Up

8

_____________________________________________________________________

2.3 Setting Current Time

When replacing 3639-20 PULSE LOGGER batteries or
using 3639-20 stand-alone (with manual operation) for the
first time, connect with 3911-20 and set current time.

See how to set current time in 3911-20
COMMUNICATION BASE instruction manual.

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Chapter 2Set Up

_____________________________________________________________________

9

2.4 Connecting Sensor Cable

The maximum input voltage is 45 V DC. Attempting

WARNING

to measure voltage in excess of the maximum input
could destroy the product and result in personal
injure or death.

Connecting the CONNECTION CABLE

The 3639-20 PULSE LOGGER is capable of measuring one

channel of pulse signals with the 9629 CONNECTION

CABLE connected. To ensure correct measurement, insert

the CONNECTION CABLE as far as it will go.

Black

9629 CONNECTION CABLE

Red

The 9629 CONNECTION CABLE can be cut to any

desired length for use. If the cable was cut, use it after
stripping the covering with a wire stripper or another
appropriate tool.

To input a voltage to the 3639-20, connect the red

conductor to the positive (+) side of the pulse-generating
device, and connect the black conductor to the negative (-)
side. If the conductors are inversely connected,
measurement cannot be conducted.

For connection between the 9629
CONNECTION CABLE and the pulse-generating
device, refer to the operation manual of the
pulse-generating device.

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Chapter 2Set Up

10

E

_____________________________________________________________________

Connecting 9632 CONNECTION CABLE

Connecting 9632 CONNECTION CABLE to alarm output
terminal. When connecting connection cable, securely insert
connection cable to unit as designated by triangle mark
on connection terminal.
Improper connection results in failure to output accurate
signal.

9632 CONNECTION CABL

9632 CONNECTION CABLE

GND

non connection

Signal

Cord length: 1000 mm

White: Signal
Black: GND

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Chapter 2Set Up

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11

Chapter 3

Settings

3.1 Setting Items

Logger stand-alone manual settings and settings in

combination with 3911-20 COMMUNICATION BASE
with measurement conditions stored in memory loaded from
personal computer.

3639-20

1. Start recording Valid Valid Valid

2. Stop recording Valid --- ---

3. Interval setting Valid Valid Valid

4. Current time setting --- Valid Valid

5. Start control --- Valid Valid

6. Recording method setting --- Valid Valid

7. Comments --- --- Valid

8. Filter Setting --- --- Valid

9. Alarm Setting --- --- Valid

3639-20

＋

3911-20

3639-20

＋

3911-20

＋

PC

・

The settings Comments, Filter Setting, and
Alarm Setting are available only when the
three products of the PC, the 3911-20, and
the 3639-20 are interconnected.

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Chapter 3Settings

12

_____________________________________________________________________

1. Start recording

Start manual recording by pressing logger REC/STOP
button for 1 second or initiate by prescheduled start set
using 3911-20 COMMUNICATION BASE.
When time scheduled start is engaged,

appears in

display.

If the INTERVAL button is pressed while

is displayed,
the measurement-value display can be turned on/off. When
measurement is to be conducted for an extended period, set
the measurement-value display to OFF in advance.

・

Recording cannot be started if the battery
power is low ( indication). Moreover, if
the battery power becomes too low during
recording ( indication), recording will be
interrupted.

2. Stop recording

To stop recording, turn on the measurement-value display,
then hold down the REC/STOP button on the 3639-20 for 1
second.
Or recording stops automatically when data is full when set
to recording method: one time.

3. Interval setting

Set interval with logger alone or using 3911-20.
(1/2/5/10/15/20/30 s, 1/2/5/10/15/20/30/60 min, 1 day)
Default setting is 1 sec.

4. Current time setting

To set current time, see 3911-20 COMMUNICATION
BASE instruction manual.

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Chapter 3Settings

_____________________________________________________________________

13

5. Start control

Set specific recording date and time using 3911-20 to
engage time scheduled start. When time scheduled start is
engaged,

appears in display.
When the Power Saving function is set to OFF before
measurement starts, pressing the INTERVAL button turns
the Power Saving function ON/OFF. When the
measurement-value display is on, the Power Saving
function is set to OFF. When the measurement-value
display is off, the Power Saving function is set to ON. For
an extended measurement operation, set the Power Saving
function to ON (measurement-value display turned off).

6. Recording method setting

Set recording method using 3911-20.
Choose either one time or endless recording method.
Default setting is one time

.
One time: Ends recording when data reaches 32000.
Endless : Overwrites previously recorded data when data

exceeds 32000.

7. Comments

The settings Comments is available only when the three

products of the PC, the 3911-20, and the 3639-20 are
interconnected.
Set comments entered by personal computer to logger using
3911-20. When sorting collected recording data, comments
are helpful.

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Chapter 3Settings

14

_____________________________________________________________________

8. Filter setting

The filter setting can be made when the 3639-20, the 3911­20, and the PC are interconnected. Either "Mechanical­contact input" or "Electronic-contact input" can be selected
for the filter. Default setting is Mechanical-contact input.
In the case of the mechanical contacts of a relay or switch,
noise referred to as "chattering" may be heard when signals
are switched over. When the filter is set to "Mechanical­contact input," noise components such as those of the
mechanical-contact chattering can be eliminated (see the
figure). If "Electronic-contact input" is selected, the
chattering cannot be eliminated. In the case illustrated
below, the measurement value will be 1 if "Mechanical­contact input" is selected, or 5 if "Electronic-contact input"
is selected.

Chattering

Filter set to ON

9. Alarm setting

The Alarm Setting can be made when the 3639-20, the
3911-20, and the PC are interconnected. Default setting is
the alarm output set to OFF

.
The product issues an alarm signal if a measurement value
exceeds the preset upper-limit value. Decision of an alarm
and its output are made at each individual recording
interval. An alarm once issued will continue to be output
until the measurement value has fallen below the preset
upper-limit value (see the figure below). "AL" remains
displayed on the screen while the alarm signal is being
output.

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Chapter 3Settings

_____________________________________________________________________

Alarm output

Measurement value

Upper-limit
value

Time

Recording
intervals

・As the alarm-signal output terminals form an

open-drain output, the signaling side and the
GND side are internally short-circuited when
signals are output. In other cases, they
remain open. When an external power supply
is provided, a relay or sequencer can be
controlled through the use of alarm signals.
Maximum rating: 30 VDC, 200 mADC
(permissible loss: 200 mW).

If an alarm is issued immediately before a measurement

session is terminated, the alarm will continue to be output
even after termination of the measurement. The display of

"AL" and the alarm output will be turned off at the start of

the next recording session.

15

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Chapter 3Settings

16

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3.2 Manual Setting

3639-20 PULSE LOGGER stand-alone manual operation
settings are shown below.

(1) Interval setting

Press INTERVAL button to switch measurement value
display to interval setting display. (INTVL appears.)
Press SELECT button to designate interval.
Press INTERVAL button to complete setting.

(2) Starting and ending recording

Press REC/STOP button for 1 second to clear last
recorded data and start recording. (REC appears.)
Press REC/STOP button for 1 second to stop recording.
When memory is full, recording automatically stops
when recording method: one time is selected.
Recording cannot be started if the battery power is low
(

indication). Moreover, if the battery power
becomes too low during recording (
recording will be interrupted.
When the measurement value display is on, the
displayed values are updated at every recording interval.
At the outset of a measurement session, 0 will be
displayed.

indication),

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Chapter 3Settings

_____________________________________________________________________

17

(3) Power save function ON/OFF

When the Power Saving function is set to OFF before
measurement starts, pressing the INTERVAL button
turns the Power Saving function ON/OFF. When the
measurement-value display is on, the Power Saving
function is set to OFF. When the measurement-value
display is off, the Power Saving function is set to ON.
For an extended measurement operation, set the Power
Saving function to ON (measurement-value display
turned off).

3.3 Setting by 3911-20

Preparation

(1) If the LCD of this unit remains off (Sleep state), briefly

press the INTERVAL button or SELECT button of the
3639-20 to display the LCD.
When logger LCD shows REC mark or
REC/STOP button for more than 1 second to stop
recording.
During sleeping, recording, or waiting time before
recording start time, data transfer cannot be established
with 3911-20.

(2) Press logger INTERVAL button to display interval

setting display. (INTVL appears.)

, press

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Chapter 3Settings

18

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Connection and setting

(1) Connect 3911-20 with logger.
(2) Press 3911-20 SEND button for more than 1 second to

send data settings to logger.
If an error is issued and the data cannot be transferred,
refer to Chapter 5. Maintenance and Service:
"Troubleshooting" in the 3911-20 Instruction Manual.

・Previously recorded logger data is erased

when recording is resumed. Be sure to load
data to be saved to 3911-20 or to personal
computer before recording.

・At any other time even when interval setting

display is not shown, except during recording
and waiting for recording, communication with
3911-20 is available. However communication
is disabled when logger is set to sleep.

3639-20 settings in application software
COMMUNICATION UTILITY for 3911-20 packaged with
3911-20 are as follows.

Go to 'Communication' on the menu bar in
COMMUNICATION UTILITY for 3911-20 and select
'Setting measurement condition'. When measurement
condition setting window is open, select '3639-20 setting
items' to set settings.

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Chapter 3Settings

_____________________________________________________________________

19

・The settings of Comments, Filter Setting, and

Alarm Setting can be made only on the 3639-20
and are available only when the 3639-20, the
3911-20, and the PC are interconnected.

・The settings common to all models are made in

"Setting Items of the 3911-20." In this case, the
settings can be made with the 3639-20 and the
3911-20 interconnected.

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Chapter 3Settings

20

_____________________________________________________________________

3.4 Application Example

3.4.1 Connecting the Product to a Rain Gauge

The following shows the procedure for connecting the
3639-20 PULSE LOGGER to a rain gauge for the
measurement of precipitation.

(1) If the product is being used for the first time or the

batteries have just been replaced, set the current time.

(2) Connect the 3639-20, 3911-20, and PC, and set the

filter to "For mechanical contacts" (default setting)
using the application software.
To output an alarm signal, set Alarm Output to ON and
specify an upper-limit value (default setting: Alarm
Output OFF).

(3) Make other settings (recording interval, etc.) as

necessary.

(4) Connect the rain gauge to the 3639-20. The 9629

CONNECTION CABLE can be cut to any desired
length. If the cable is cut, remove the sheath using a
wire stripper prior to use. Regarding connection of the
rain gauge and the 3639-20, refer to the operation
manual for the rain gauge.

(5) Start measurement.

The 3639-20 is not waterproof. Therefore, place the unit
inside the rain gauge or at a location where it is
protected from the rain.

(6) Upon completion of measurement, use the 3911-20 to

transfer the recorded data to the PC (see the "3911-20
Instruction Manual").

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Chapter 3Settings

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21

(7) Rain gauges are generally classified into two types:

those with 0.5 mm per pulse and those with 1 mm per
pulse. If a 1-mm-type rain gauge is used, the acquired
value represents the precipitation (mm). If a 0.5-mm­type rain gauge is employed, the precipitation (mm) is
obtained by dividing the acquired value by 2 (scaling).
Scaling is performed by the software supplied with the
3911-20.

Connect the tips

3639-20

Tipping-bucket rain gauge

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Chapter 3Settings

22

_____________________________________________________________________

3.4.2 Connecting the Product to an Open­Collector (Open-Drain) Output Device

Some flowmeters and wattmeters feature open-drain or
open-collector pulse output. In such a case, connect the
product as shown in the diagram. Insert a resistor between
the external power supply and open-collector output. Make
sure the resistor can turn on (allow a current to flow
through) the transistor used in the open collector. For an
open-drain pulse output, follow the same procedure.

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Chapter 3Settings

_____________________________________________________________________

Chapter 4

Specifications

4.1 Measurement Specifications

23

Input Pulse input: 1 channel

Measurement
accuracy
Clock accuracy Within 100 ppm (Relative to an error of 100 µs

Display of
measurement
range
Filter For mechanical contacts: Pulse width of 20 ms or

No-voltage contact input (switches, relays, etc.)
Counts when the terminals change from shorted
(short-circuited) to open
Voltage input H: +1.5 V to +45 V; L: +0.0 V to
+0.2 V (logic undefined for the range from +0.2 V
to +1.5 V)
Counts when the voltage level changes to H

Within 1 dgt., Guaranteed accuracy period: 1 year

per second and 23
9999 counts/interval
* "OFF" displayed for 10,000 counts or more

(internal data also OFF)

more, pulse spacing of 40 ms or more (frequency of
25 Hz or less)
For electronic contacts: Frequency of 10 kHz or less

5 )

4.2 Functional Specifications

Display Measurement-value display (monitored values

Recording
capacity
Start of recording Manual start, reserved-time start
End of recording Manual stop, memory full
Recording
interval
Recording
method

______________________________________________________________

updated at the preset recording intervals), recording
status (recording/waiting for preset time), recording
interval (if preset), state of batteries (remaining­battery-power indicator: 4 steps), reservation start
mark, alarm setting
32,000 pieces of data

1/2/5/10/15/20/30 sec., 1/2/5/10/15/20/30/60 min., 1
day
One time: Stopped when the memory becomes full
Continuous: The oldest data is overwritten when the
memory becomes full.

Chapter 4Specifications

24

_____________________________________________________________________

Settings By key entry on the product:

Alarm output Provided (open-drain output, 30 VDC, 200 mADC,

Waterproofing None

Recording interval, manual start, manual stop,
measurement-value display on/off

Using PC software:

Current time, recording interval, start of recording,
comments, switching of input filter, alarm output
on/off, alarm upper-limit value

200 mW of permissible loss)
If a measurement value exceeds the preset upper-limit
value, an alarm is decided at every interval and issued.

4.3 Other Specifications

Backup Data backup provided (data not lost due to dead

Interface Optical communication using an infrared light.

Power supply LR03 alkaline battery X 4 (1.5 VDC X 4)
Battery life About six months or longer (with the power save

Maximum rated
power
Dimensions Approx. 57.5W X 86.5H X 30.0D mm (excluding

Mass Approx. 130 g (4.6 oz) (including batteries)
Location for use Indoors, altitude up to 2000 m (6562 feet)
Operate
temperature and
humidity range
Storage
temperature and
humidity range
Guaranteed
accuracy period
Accessories 9629 CONNECTION CABLE

Options 3911-20 COMMUNICATION BASE
Standards
Applying

batteries or removal of batteries for replacement)

Optional 3911-20 COMMUNICATION BASE required.

function set to ON and the recording interval set to
10 s, at 23
of 5 or less per second)

0.1 VA

projections)/ 2.26"W X 3.41"H X 1.18"D

0to50 , 80% RH or less (no condensation)
(32 to 122

-10 to 60 , 80% RH or less (no condensation)
(14 to 140

1 year

9632 CONNECTION CABLE
LR03 alkaline battery X 4
Instruction Manual

EMC EN 61326
Safety EN 61010 Measurement category l
(anticipated transient overvoltage 330 V),
Pollution Degree 2

5 , and with an average pulse count

)

)

______________________________________________________________

Chapter 4Specifications

_____________________________________________________________________

25

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.

Wipe LCD lightly with the soft cloth which dried.

Service

If the product seems to be malfunctioning, confirm that the

batteries are not discharged, and that the connection cables
is not open circuited 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.

Error Messages

The following error may be displayed on the LCD of the

main instrument as shown below.

Error message Meaning

ROM error

RAM error

Adjustment data error

When this occurs, repair or check the device. Contact your
dealer or Hioki representative.

______________________________________________________________

Chapter 5Maintenance and Service

26

_____________________________________________________________________

______________________________________________________________

Chapter 5Maintenance and Service

HIOKI 3639-20 PULSE LOGGER

Instruction Manual

Publication date: May 2008 Revised edition 4

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 3639A981-04

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]

3639A981-04 08-05H

Printed on recycled paper