Hioki 3412-50 User Manual
Introduction
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WARNING
Do not attempt to measure the temperature of objects carrying
CAUTION
●When measuring temperature, use only the metal tip
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l
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Measurement Range
Measurement Resolution
Measurement Sensor
Input Resistance
Reference Junction Compensation
Over range Display
"OVER"
Burnout Display
"OVER"
Low Battery Display
"BATT"
Accuracy
Temperature Coefficient
Sampling Time
Operating Temperature/Humidity
Storage Temperature
Power source
Dimensions
Mass
Accessories
Thermocouple Material
Contact Type
Accuracy 9180
Dimensions (Sheath)
Compensation Lead
Operating Temperature
Allowable Heat (Handle)
Protective Shield Material
Dielectric Strength
Isolation Resistance
Thermocouple Material
Contact Type
Measurement Accuracy
Dimensions
Compensation Lead
Operating Temperature
Allowable Heat (Handle)
Thermocouple Material
Contact Type
Accuracy
Dimensions (Sheath)
Compensation Lead
Operating Temperature
Allowable Heat (Flange)
Protective Shield Material
Dielectric Strength
Isolation Resistance
p
- -
(1) Inner Temp
D
15D to 20D
Wrong
Good
(2) Surface Temp
Remove the safety cap when
you measure.
Good
Wrong
WARNING
●To avoid electric shock when replacing the batteries, first
,
,
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Part Names
Specifications
Measurement Precautions
Thank you for purchasing the HIOKI "3412-50 TEMPERATURE
HiTESTER". To obtain maximum performance from the product,
please read this manual first, and keep it handy for future
reference.
Safety
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 following symbols in this manual indicate the relative
importance of cautions and warnings.
WARNING
CAUTION
NOTE
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.
■Safety symbols
In the manual, the symbol indicates
particularly important information that the use
should read before using the product.
■ 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.
Precautions
a voltage. Doing so will result in a short-circuit accident or an
electrocution accident.
portion of the probe. Do not expose or immerse the handle
or cable portion of the probe.
●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 longe
meets specifications.
●To avoid damage to the product, do not short the output
terminal and do not input voltage to the output terminal.
●In order to prevent damage to the unit, make sure that the
center terminal on the AC adapter is negative before using
the AC adapter.
(1) Where the inner temperature of a fluid is to measured,
immerse the probe to a depth of 15 to 20 times the diameter
of the protective shield. (Applicable to sheath type probe.)
(2) For surface temperature measurements, make sure that solid
thermal contact is made with the object being measured.
The surface type temperature probe is designed to maximize
the heat capacity of the measuring point. However, errors
may occur due to effects such heat dissipation on contact.
(3) If the unit is used in a place where sudden changes in
ambient temperature are expected, unbalanced reference
contact compensation will result. It will be necessary,
therefore, to connect the sensor to the main unit and leave
them at the measurement place for 20 to 30 minutes in order
to balance the reference contact compensation prior to
operation.
(4) Do not overheat the handle portion of temperature probes.
Thermocouple K（CA
connection terminal
Power and Hold switc
Displa
AC adapter termina
(9 VDC, 200 mA)
Analog output terminal
（9094 OUTPUT CABLE）
: -50 to 999℃, -58 to 1830。F
:1℃
: Thermocouple, K type
: Approx. 2 MΩ or more
:
:
(at 23℃±3℃)
AC adapter : 9 VDC-200 mV, has 5 mm dia terminal
Option : 9094 OUTPUT CABLE
: ±0.2%f.s.±1 dgt.
Accuracy includes errors in reference junction
compensation and in linearizer.
: One（6F22）battery（9 VDC×1）（Life : 25 hours）
: 75W×173H×24D mm, 2.95W"×6.8H"×0.94D"
: Approx. 220 g, 7.8 oz
: Instruction Manual, 6F22 battery, Soft case
:
: 0.1 dgt/℃
: Approx. 0.8 s/sample
: -10 to 50℃,14 to 122。F
: Automatic, by diode
: 0 to 50℃(32 to 122。F) ＜80% RH
Sensor Probe (optional)
Measurement Procedure
(1) Install the 6F22 battery
During the unit use, low battery voltage is indicated by "BATT"
appearing in the display. Replace the battery at this time.
To remove the battery cover, slide
it in the direction of the arrow
marked OPEN.
Snap the battery connector on the
battery, put the battery into the
battery compartment, then
reattach the battery cover. Make
sure the battery snap cord is not
pinched by the battery cover.
(2) Connect the sensor.
Plug the red banana plug into the (+) terminal, and the black
plug into (-) terminal.
(3) Place the power/hold switch in the "ON" position and take the
measurement.
(4) If you desire to hold the reading, position the power/hold switch
to HOLD . The value in the display at this time will be held.
(5) When you are through using the meter, position the power/hold
switch to "OFF".
■ Analog output
Output from 3412-50 is 1 mV per 1℃ (0 V at 0℃). Set recorder
range according to the temperature you are going to measure.
Analog Output : 1 mV/℃
Analog Resistance :10Ω max.
Accuracy : ±0.25%f.s.
Temperature coefficient : 1 mV/10℃
NOTE ・If the probe circuit is broken wire (rearing), or not
connected securely, voltage output will exceed 1 V. Be
careful when using the recorder in the lower ranges.
・Note that input (sensor input terminal) and analog output
is not insulated.
■ 9180/9183 SHEATH TYPE TEMPERATURE PROBE
: K type
: Isolated junction (ungrounded)
: ±2.5℃(±4.5。F) or ±0.75%rdg.,
9183
whichever is greater.
: ±1.5℃(±2.7。F) or ±0.4%rdg.,
whichever is greater.
: Approx. φ3.2×150 mm, φ0.13"×5.91"
: Conventional type (-20 to 90℃),
Approx. 1 m, 39.4"
: -50 to 750℃, -58 to 1382。F
: 150℃, 302。F
: SUS 316
: 500 VAC（50/60 Hz）for 1 minute
: 100 MΩ or more（100 VDC）
■ 9181 SURFACE TEMPERATURE PROBE
: K type
: Grounded
: ±2.5℃(±4.5。F)[(T-Ts)≦100℃(180。F)]
-0.035×T℃ to +2.5℃(4.5。F)
[100℃(180°Ｆ)＜(T-Ts)]
T : Measurement temperature
(-50 to 400℃, -58 to 752。F)
Ts: Surroundings temperature
(0 to 50℃, 32 to 122。F)
: Approx. φ15×110 mm, φ0.59"×4.33"
: Conventional type (-20 to 90℃, -4 to 194。F),
Approx. 1 m , 39.4"
: -50 to 400℃, -58 to 752。F
: 150℃, 302。F
■ 9182 SHEATH TYPE TEMPERATURE PROBE
: K type
: Isolated junction (ungrounded)
: ±2.5℃(±4.5。F) or ±0.75%rdg.,
whichever is greater.
: Approx. φ3.2×500 mm, φ0.13"×19.7"
:Heat resisting type (0 to 150℃,32 to 302。F),
Approx. 2 m, 78.8"
: -50 to 750℃, -58 to 1382。F
:90℃, 194。F
: INCONEL
: 500 VAC（50/60 Hz）for 1 minute
: 100 MΩ or more（100 VDC）
9180/9183 SHEATH TYPE TEMPERATURE PROBE
9181 SURFACE TEMPERATURE PROBE
Safety ca
9182 SHEATH TYPE TEMPERATURE PROBE
Battery replacement
disconnect the probe from the object to be measured.
Before using the product after replacing the batteries
replace the cover.
●To avoid the possibility of explosion, do not short circuit
disassemble or incinerate batteries.
●Handle and dispose of batteries in accordance with loca
regulations.
Maintenance/Service
■ Service
･ If the product seems to be malfunctioning, confirm that the
batteries are not discharged, and that the probes are 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.
■ 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.
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