Hioki 3645-20 User manual

INSTRUCTION MANUAL
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3645-20
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VOLTAGE 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 3
1.3 Timings of Measurement 4
Chapter 2 Set Up 7
2.1 Replacing the Battery 7
2.2 Power Save Function 9
2.3 Setting Current Time 10
2.4 Connecting 9639 CONNECTION CABLE 11
2.5 Preheat Signal 12
Chapter 3 Settings 15
3.1 Setting Items 15
3.2 Manual Setting 18
3.3 Setting by COMMUNICATION BASE 21
Chapter 4 Specifications 23
Chapter 5 Maintenance and Service 25

i
_____________________________________________________________________
Inspection
______________________________________________________________
NOTE Testing monitor batteries installed in the unit may possibly be
weak. Replace batteries before extended measurement usage.
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, so contact your dealer or Hioki representative for
repair.
Introduction
Ins
p
ection
Thank you for purchasing this HIOKI "3645-20 VOLTAGE
LOGGER." To get the maximum performance from the
unit, please read this manual first, and keep this at hand.
When the unit is delivered, check and make sure that it has
not been damaged in transit. If the unit is damaged, or fails
to operate according to the specifications, contact your
dealer or HIOKI representative.
Accessories
9639 CONNECTION CABLE
9632 CONNECTION CABLE
Instruction Manual
LR03 alkaline battery X4 (built into this unit, for monitor)
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.

ii
_____________________________________________________________________
Safety Notes
______________________________________________________________
DANGE
R
This equipment is designed according to IEC 61010
Safety Standards, and has been tested for safety prior
to shipment. Incorrect measurement procedures
could result in injury or death, as well as damage to
the equipment. Please read this manual carefully and
be sure that you understand its contents before using
the equipment. The manufacturer disclaims all
responsibility for any accident or injury except that
resulting due to defect in its product.
Safety Symbols
This symbol is affixed to locations on the equipment
where the operator should consult corresponding topics
in this manual (which are also marked with the
symbol) before using relevant functions of the
equipment.
In the manual, this mark indicates explanations which it
is particularly important that the user read before using
the equipment.
Indicates DC (Direct Current).
Safet
y
Notes
This Instruction Manual provides information and warnings
essential for operating this equipment in a safe manner and
for maintaining it in safe operating condition. Before using
this equipment, be sure to carefully read the following
safety notes.

iii
_____________________________________________________________________
Safety Notes
______________________________________________________________
DANGE
R
Indicates that incorrect operation presents extreme
danger of accident resulting in death or serious injury
to the user.
WARNING
Indicates that incorrect operation presents significant
danger of accident resulting in death or serious injury
to the user.
CAUTION Indicates that incorrect operation presents possibility
of injury to the user or damage to the equipment.
NOTE Denotes items of advice related to performance of the
equipment or to its correct operation.
f.s. (maximum display or scale value, or length of scale)
Signifies the maximum display (scale) value or the length
of the scale (in cases where the scale consists of unequal
increments or where the maximum value cannot be
defined).
In general, this is the range value (the value written on
the range selector or equivalent) currently in use.
rdg. (displayed or indicated value)
This signifies the value actually being measured, i.e., the
value that is currently indicated or displayed by the
measuring instrument.
dgt. (resolution)
Signifies the smallest display unit on a digital measuring
instrument, i.e., the value displayed when the last digit on
the digital display is "1".
The following symbols are used in this Instruction Manual
to indicate the relative importance of cautions and
warnings.
Accuracy
The specifications in this manual include figures for
"measurement accuracy" when referring to digital
measuring instruments, and for "measurement tolerance"
when referring to analog instruments.

iv
_____________________________________________________________________
Safety Notes
______________________________________________________________
CAT I Secondary electrical circuits connected to an AC
electrical outlet through a transformer or similar
device.
CAT II Primary electrical circuits in equipment connected
to an AC electrical outlet by a power cord (portable
tools, household appliances, etc.)
CAT III Primary electrical circuits of heavy equipment
(fixed installations) connected directly to the
distribution panel, and feeders from the distribution
panel to outlets.
CAT IV The circuit from the service drop to the service
entrance, and to the power meter and primary
overcurrent protection device (distribution panel).
Measurement categories (Overvoltage categories)
This product complies with CAT I safety requirements.
To ensure safe operation of measurement product, 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.
Higher-numbered categories correspond to electrical
environments with greater momentary energy. So a
measurement device designed for CAT III environments can
endure greater momentary energy than a device designed for
CAT II. 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.

v
_____________________________________________________________________
Notes on Use
______________________________________________________________
DANGE
R
The maximum input voltage is 60 V DC. Attempting
to measure voltage in excess of the maximum input
could destroy the product and result in personal injure
or death.
WARNING
To avoid electric shock, do not allow the product to get
wet, and do not use it when your hands are wet.
To avoid electric shock, shut off the line power supply
before connecting the connection cable to the
terminals.
CAUTION To avoid electric shock, before replacing the connection
cable, remove the all connection cable from the device to
be measured.
To avoid damaging connection cable (especially where the
leads connect to the probes), do not kink or pull on the
leads.
This product is designed for indoor use, and operates
reliably from 0 to 40 .
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.
This product is not designed to be entirely water- or dust-
proof. To avoid damage, do not use it in a wet or dusty
environment.
Notes on Use
In order to ensure safe operation and to obtain maximum
performance from the unit, observe the cautions listed
below.

vi
_____________________________________________________________________
Measurement Flow Chart and Reference Guide
______________________________________________________________
Is there sufficient
battery charge remaining
to o
p
erate 3645-20?
Replace batteries
Setting current time
Setting 3645 stand-
alone
・Interval
・Preheat time
・Range
Setting 3645 with
COMMUNICATION
BASE
・Interval・Current time
・Start control
・Recording method
Setting 3645 with
COMMUNICATION BASE and
PC
・Interval ・Preheat time
・Current time ・Start control
・Recording method
・Comment
See 2.1.
See 3.2.
Connecting sensor See 2.4.
Press REC/STOP
button to start
measurement.
Settin
g
start control
Start control o
p
tions
No
Yes
Manual start
Time prescheduled
start
Starts measurement
immediately.
Starts measurement at
prescheduled time.
Setting
recordin
g
method
Endless
One time
When recording data
reaches 32000,
measurement stops.
When recording data exceeds 32000, it overwrites
previously recorded data.
Press REC/STOP button to stop measurement.
After measurement is complete, disconnect connection cord.
Use COMMUNICATION BASE to send measurement data to personal computer.
(See COMMUNICATION BASE instruction manual.)
See 3.2.
Set current time when using 3645-20 for the
first time or re
p
lacin
g
batteries. See 2.3.
Measurement Flow Chart and Reference Guide

1
_____________________________________________________________________
Product Outline
______________________________________________________________
NOTE 3645-20 cannot be set with 3910-20 COMMUNICATION
BASE. Use 3911-20, 3912-20 COMMUNICATION BASE to set
3645-20.
Chapter 1
Product Outline
3645-20 VOLTAGE LOGGER enables measurement with
intervals and recording up to 50 VDC.
This logger is designed with four measurement ranges
covering 50 mV to 50 V, to enable measurement of
the outputs of various types of sensors, and the voltages of
diverse devices and power supplies. The 3645-20 comes
equipped with a Preheat function. When a synchronized
Preheat signal is used in the measurement, the logger allows
control of the power supply to various types of sensors.
Data is saved in nonvolatile memory when batteries are
weak or removed for replacement.

2
_____________________________________________________________________
Product Outline
______________________________________________________________
LCD
Optical data
transfer
p
orts
INTERVAL
button
REC/STOP button
(
SELECT
)
button
Preheat output
terminal
Ran
g
e button
Connection terminal
LCD Displays measurement value and settings.
Optical data transfer
ports
Enables optical data transfer to
COMMUNICATION BASE.
INTERVAL button Calls up interval setting display to set interval
and preheat time.
Connection terminal Connects 9639 CONNECTION CABLE.
REC/STOP button Pressing more than 1 second initiates or stops
recording.
(SELECT) button Interval is selected in interval setting display.
Preheat output
terminal
When the 9632 CONNECTION CABLE is
plugged into this terminal, it outputs the
Preheat signal (open-collector output).
RANGE button Changes measurement range from 50 mV/500
mV/5 V/50 V.
1.1 Name and Functions of Parts

3
_____________________________________________________________________
Product Outline
______________________________________________________________
INTVL Maximum Recording Time
1s 8h53min20s
2s 17 h 46 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 20 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
1.2 Interval and Maximum Recording Time
Interval and maximum recording time (when power save
function is valid) are as follows.
Maximum recording time is limited by battery charge
condition. Maximum recordable data is 32000 per unit.

4
_____________________________________________________________________
Product Outline
______________________________________________________________
①→ ②→ ③→④→⑤→⑥→⑦→⑧→⑨→⑩→
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
① ② ③ ⑥ ⑨
Interval
Display ON
Display OFF
Measurement (1 s)
Measurement
Indication updated
Recording
LCD
①→②→③→④→⑤→⑥→⑦→
① ② ③ ④ ⑤ ⑥
Display ON
Display OFF
Measurement (1 s)
Measurement
Indication updated
LCD
1.3 Timings of Measurement
When Preheat is OFF
(1) Recording ("REC" on)
In the recording mode, the unit conducts measurement once
the preset recording interval has elapsed. It then records
the measurement value and updates the LCD indication.
When the power-save function is disabled, or when the
power-save function is active and any button is pressed to
restart the LCD indicator, the unit conducts measurement
every second and updates the LCD indication only, until
the preset recording interval elapses.
(2) Monitoring ("REC" off)
In the monitoring mode, the unit conducts measurement
every second and updates the LCD indication.

5
_____________________________________________________________________
Product Outline
______________________________________________________________
①→ ②→ ③→ ④→
② ③
① ② ③ ④
Measurement (1 s)
Interval
Preheat time
Display ON
Display OFF
Measurement
Indication updated
Recording
Preheat time
LCD
①→②→③→④→⑤→⑥→⑦→⑧→⑨→⑩→⑪
①→②→③→④→⑤→⑥→⑦→⑧→⑨→
Display ON
Display OFF
Measurement (1 s)
Measurement
Indication updated
Recording
Preheat time
LCD
NOTE If the Preheat function is active, the measurement value recorded
in the immediately preceding measurement is displayed in
Recording ("REC" on) until the recording interval elapses,
allowing the following measurement to be conducted. When the
power-save function is active and any button is pressed to
conduct monitoring, quite some time may be required for stable
measurement values to be obtained, depending on the response
time of the connected sensor (time required for the output to
stabilize after the sensor is powered up).
When Preheat is ON
(1) Recording ("REC" on)
In the recording mode, the unit first outputs the Preheat
signal once the preset recording interval has elapsed, and
then conducts measurement. It records the measurement
value and updates the LCD indication.
(2) Monitoring ("REC" off)
In the monitoring mode, the unit conducts measurement
every second and updates the LCD indication. In this
condition, the unit delivers the Preheat signal permanently.

6
_____________________________________________________________________
Product Outline
______________________________________________________________

7
_____________________________________________________________________
Set Up
______________________________________________________________
WARNING
During battery replacement, use caution not to put any
foreign materials such as a metal object into the unit to
avoid damage to the unit.
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.
Chapter 2
Set Up
2.1 Replacing the Battery
Installing new batteries ensures about 1 year of recording.
(reference value with interval setting set to 1 minute or
more, preheat is OFF and power save setting set to valid
and at 20 ) Remaining battery power indicator ( )
indicates remaining battery life reducing incrementally from
right. Empty battery power indicator ( ) indicates time
to replace batteries.

8
_____________________________________________________________________
Set Up
______________________________________________________________
1. Remove back cover screw
to remove cover. Verify
polarity and install four new
LR03 alkaline batteries.
2. Fit cover properly and
tighten screw.

9
_____________________________________________________________________
Set Up
______________________________________________________________
Slee
p
in
g
......
NOTE See COMMUNICATION BASE instruction manual to connect
logger and to install application software. To use application
software, see operation guide.
2.2 Power Save Function
Display window is automatically turned off in
approximately 15 seconds after last key entry. (Sleep)
However, while recording, REC/ / mark shows
each conditions.
Press any button to turn display on to display measurement
value or to set settings.
Note when interval setting display is on, sleep does not
engage with no button press.
Initially, power save function is on. To turn off power save
function, follow the instructions below.
When power save function is off, maximum continuous
duration is approximately 20 days.
1. Connect logger, COMMUNICATION BASE and personal
computer.
2. Start up application software packaged with
COMMUNICATION BASE.
3. Go to Communications on the menu bar and select Power
Save Options. Choose Off to turn off power save function.

10
_____________________________________________________________________
Set Up
______________________________________________________________
2.3 Setting Current Time
When replacing 3645-20 VOLTAGE LOGGER batteries or
using 3645-20 stand-alone (with manual operation) for the
first time, connect with COMMUNICATION BASE and set
current time.
See how to set current time in COMMUNICATION BASE
instruction manual.