INSTRUCTION MANUAL
3446-01
TEMPERATURE
HiTESTER
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Contents
Introduction .............................................................1
Inspection ............................................................... 1
Safety Notes ...........................................................2
Usage Notes ........................................................... 5
Chapter 1 Overview 7
1.1 Product Overview ...................................7
1.2 Parts Names and Functions ................... 8
1.2.1 3446-01 TEMPERATURE HiTESTER.... 8
1.2.2 9472-50/9273-50 SHEATH TYPE
TEMPERATURE PROBE ..................13
1.2.3 9476-50 SURFACE TYPE
TEMPERATURE PROBE ..................13
Chapter 2 Installation 15
2.1 Attaching the strap band .......................15
2.2 Mounting or Replacing the Batteries.....16
2.3 Connecting the Temperature Probe .....18
2.4 Connecting the RS-232C Cable ........... 20
Chapter 3 Measurement Procedures 23
3.1 Before Measurement ............................23
3.1.1 Switching the 3446-01 ON or OFF .... 23
3.1.2 Auto Power Save Function ................24
3.1.3 Date and time settings (on the 3446-01) .. 26
3.1.4 Date and Time Settings
(Using a Computer) ...........................27
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3.2 Basic Temperature Measureme nt .........28
3.2.1 Recording Temperature Data
(Manual Recording Mode) ..................30
3.2.2 Display Hold .......................................30
3.2.3 Switching Display Resolution .............31
3.2.4 Switching Date and Time ...................32
3.2.5 Reading Data .....................................33
3.2.6 Deleting Recorded Data .....................34
3.3 Interval Recording Mode .......................36
3.3.1 Selecting a Recording Interval ...........37
3.3.2 Starting recording ...............................38
3.3.3 Stopping Interval Recording ...............38
3.3.4 Reading Data .....................................39
3.4 Item/ID display .......................................40
3.5 Comparator Function .............................42
3.5.1 Setting Comparator Values ................42
3.5.2 Confirming Comparator Value Settings .43
3.6 Key Lock Function .................................44
3.7 Buzzer Function ....................................45
3.8 Print Function ........................................46
3.9 Data Communication with a Computer ..48
Chapter 4 Specifications 49
4.1 3446-01 TEMPERATURE HiTESTER ..49
4.2 9472-50/9473-50 SHEATH TYPE
TEMPERATURE PROBE.......................53
4.3 9476-50 SURFACE TYPE
TEMPERATURE PROBE.......................54
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Chapter 5 Maintenace and Service 55
5.1 Replacing the Batteries .........................55
5.2 Disposing the Lithium Battery ............ 55
5.3 Cleaning ................................................57
5.4 Service .................................................. 57
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1
Introduction
Thank you for purchasing the HIOKI "3446-01
TEMPERATURE HiTESTER". 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. In particular, check the accessories, panel
switches, and connectors. If damage is evident, or
if it fails to operate according to the specifications,
contact your dealer or Hioki representative.
• Before using the product, make sure that the insu-
lation on the probes 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.
• 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.
Accessories
Alkaline (LR03) batterie s..................................4
Strap band........... .. ....... .. .. .. .. .... .. ..... .. .. .. .... .. .. .. .1
Instruction Manual ............................................1
2
Safety Notes
This product is designed to conform to IEC
61010 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.
Safety Symbols
In the manual, the symbol indicates particularly important information that the user should
read before using the product.
The symbol printed on the product indicates
that the user should refer to a corresponding topic
in the manual (marked with the symbol) before
using the relevant function.
Indicates DC (Direct Current).
3
The following symbols in this manual indicate the
relative importance of cautions and warnings.
Indicates that incorrect operation presents an extreme hazard that could result in serious injury or
death to the user.
Indicates that incorrect operation presents a 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.
Advisory items related to performance or correct
operation of the product.
Other Symbols
Indicates the prohibited action
Accuracy
❖
rdg.
dgt.
Indicates the reference
We define measurement tolerances in terms of
rdg. (reading) and dgt. (digit) values, with the following meanings:
(reading or displayed value)
The value currently being measured and indicated
on the measuring product.
(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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Measurement catego ries (O vervolt ag e categories)
This product conforms to the safety requirements
for CAT I measurement products.
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 I
CAT II
CAT III
CAT IV
Secondary electrical circuits connected to an AC electrical outlet through a transformer or similar device.
Primary electrical circuits in equipment connected to an
AC electrical outlet by a power cord (portable tools,
household appliances, etc.)
Primary electrical circuits of heavy equipment (fixed installations) connected directly to the distribution panel,
and feeders from the distribution panel to outlets.
The circuit from the service drop to the service entrance,
and to the power meter and primary overcurrent protection device (distribution panel).
Higher-numbered categories correspond to electrical environments with greater momentary energy,
so a measurement product designed for CAT III
environments can endure greater momentary
energy than one 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.
5
Usage Notes
Follow these precautions to ensure safe operation
and to obtain the full benefits of the various functions.
Do not attempt to measure the temperature
of objects carrying a voltage. Doing so will
result in a short-circu it a cc id ent or an el ectrocution accident.
• This product should be installed and operated
indoors only, between 0 and 40
• To avoid damaging the product, never connect
any sensor other than the K thermocouple to the
sensor connector. Never attempt to input a signal through the sensor connector. For information on the temperature range of use for
temperature probes, see 4.2 "9472-50/9473-50
SHEATH TYPE TEMPERATURE PROBE" (53
page) and 4.3 "9476-50 SURFACE TYPE TEMPERATURE PROBE" (54 page).
• 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.
• Do not use the product where it may be exposed
to corrosive or combustible gases. The product
may be damaged.
• Avoid using the product for long periods if the
unit is soiled with oil or dirt. Doing so may cause
the unit’s case to become warped or damage
the product.
°C and 80% RH.
6
• 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.
• The sheath of the temperature probe is filled
with magnesium oxide powder. If the probe is
broken, the magnesium oxide powder may spill
out. Be careful not to subject the sheath to
excess stress. Inhaling large quantities of magnesium oxide may be hazardous to your health.
7
1.1 Product Overview
Overview Chapter 1
1.1 Product Overview
The 3446-01 TEMPERATURE HiTESTER is a
thermometer designed for use with a type K thermocouple. Using a miniature thermocouple connector for the sensor connector, the product allows
connection to commercially available sensors, as
well as to optional HIOKI temperature probes, and
is capable of measuring temperatures from -100
°C.
to 1000
This product is ideal for controlling temperatures
since it allows you to record both measurement
temperatures and measurement times at the touch
of a button. (Manual Recording Mode)
Further, the product can be used as a logger for
continuous data recording at a specified recording
interval. (Interval Recording Mode)
This product can store up to 7,200 data items (in
manual recording mode), or 28,800 data items (in
interval recording mode) in its internal memory.
Because data is stored in the unit’s non-volatile
memory, data is not lost when battery power runs
low or during battery replacement.
When the product is connected to a PC via the
optional 9674 RS-232C PACKAGE, you can set
items (product names) and IDs (worker names)
from your computer, and record this information
together with temperature data.
You can also transfer recorded data to your computer and display it.
°C
1.2 Parts Names and Functions
8
3446-01 TEMPERATURE HiTESTER
1.2 Parts Names and Functions
1.2.1 3446-01 TEMPERATURE HiTESTER
LCD display
Buttons
Sensor connector
(Protective cap)
RS-232C connector
(Protective cap)
Strap band
attachment hole
Battery
compartment
Strap band
attachment hole
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1.2 Parts Names and Functions
LCD display Displays temperature readings and set-
Sensor connector For connecting the 9472-50 and 9473-50
Protective cap Place on unused connectors.
Strap band
attachment hole
Battery
compartment
RS-232C
connector
tings.
SHEATH TY PE TEMPERA TURE PROBEs,
or the 9476-50 SURFACE TYPE TEMPERATURE PROBE. (Uses a miniature
connector for the thermocouple)
For attaching the provided strap band.
The product uses 4 LR03 (AAA) alkaline
dry cell batteries.
Use the special cable provided with the
9674 RS-232C PACKAGE to connect the
unit to your computer or printer.
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Buttons
1.2 Parts Names and Functions
●Manual Recording Mode
Records temperature and time readings.
●Interval Recording Mode
Starts and stops interval recording.
Activates the display hold function.
Turns the 3446-01’s power on/off. (Press for 2
seconds)
• Selects Item or ID type.
• Selects a data number for reading.
• Changes date/time settings.
• Selects the recording interval.
Toggles between Item display and ID display.
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1.2 Parts Names and Functions
K
s
Sets the recording interval for interval recording.
When this is off, manual recording is selected.
Displays comparator value settings.
Displays recorded data.
Toggles the display between date and time.
Sets date and time. (Press for 2 seconds)
Toggles temperature display between 0.1
°C resolution.
and 1
●Delete most recent data
Deletes the most recent data item.
°C
●Delete all data
Deletes all recorded data.
Cancels all settings in all settings screens, and
returns the monitor screen.
●Print
Sends recorded data to a printer.
ey lock
(Press for 2
econds)
●Key lock (Manual recording)
Inhibits operation of all keys except and
.
●Key lock (Interval recording)
Inhibits operation of all keys except .
1.2 Parts Names and Functions
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LCD display
t
Recording
interval display
Date and time
display
Indicates that recording is taking place.
Indicates that the display hold function is
activated.
Indicates that the buzzer is on.
APS Indicates that the auto power save function
is on.
Displays the remaining battery charge in 4
steps.
Indicates data read mode.
ITEM Indicates that the item (product name) is
being displayed.
ID Indicates that the ID (worker name) is
being displayed.
INTVL Indicates that the 3446-01 is in interval
recording mode or in recording interval
setting mode.
Recording interval
Displays the recording interval.
display
Text display Displays text (alphanumeric) set as Items
or IDs.
DATE Indicates date display.
Text display
Data number
display
Temperature
measuremen
display
Unit display
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1.2 Parts Names and Functions
TIME Indicates time display.
Date and time
display
COMP Hi IN Lo Indicates comparator settings mode, or
Data number
display
Temperature
measurement
display
Unit display
Displays the date or time.
comparator test results.
Displays a number for a data item.
Displays temperature measurement.
Displays comparator value settings.
(comparator confirm mode)
Indicates that the key lock function is activated.
Indicates the units (
display.
°C) for the temperature
1.2.2 9472-50/9273-50 SHEATH TYPE TEMPERATURE PROBE
Measuring point
Sensor connector
Grip
1.2.3 9476-50 SURFACE TYPE TEMPERATURE PROBE
Measuring point
Sensor connector
Grip
1.2 Parts Names and Functions
14
15
2.1 Attaching the strap band
Installation Chapter 2
2.1 Attaching the strap band
You can attach the strap band provided with the
product. There are holes on the top and bottom of
the product. Attach the strap handle to these holes
as necessary.
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