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Digital Thermometer
Измеритель температуры
User Manual / 使用說明書 / 使用说明书
ユーザーマニュアル
Руководство пользователя
51/52
LIMITE D
WARRAN TY
YEAR S
INTRODUCTION
1-1 Unpacking and Inspection
Upon removing your new Digital Thermometer from its
packing, you should have the following items:
1. Digital Thermometer.
2. K-type Bead Thermocouple. (51 single, 52 a couple)
3. Operator's Manual.
4. Protective Holster.
5. Belt Clip.
1-2 Front Panel
Refer to Figure 1 and the following numbered steps to
familiarize yourself with the meter's front panel controls
and connectors.
1. Digital Display: The digital display has a 3-1/2 digit
LCD readout (maximum reading 1999) auto polarity
decimal point, , function symbols and unit
annunciators.
2. Thermocouple Input Connectors : This is used to
connect the thermocouple.
3. Hold Switch : This key is used to hold the numeric
reading. When pressed the HOLD annunciator is
displayed.
Conversions are made but the reading is not updated.
4. P ower ON/OFF S witch : This key turns the
thermometer on or off.
5. Resolution Selector : This key is used to select
resolution of 0.1 or 1.
6. °C / °F Selector : This key is used to exchange the
° C and ° F.
7. Max. Switch : Pressing this key picks up the max
reading in measurements, press again to cancel.
Disable this function before changing control keys to
keep reading correctly.
8. T1-T2 Switch : This key is used to select the T1-T2
mode for measuring (52 only).
9. T2 Switch : This key is used to select the T2 mode
for measuring (52 only).
10. T1 Switch : This key is used to select the T1 mode
for measuring (52 only).
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1
SPECIFICATIONS
2-1 General Specifications
This Thermometer conforms to the temperature / voltage
tables of the National Bureau of Standards and to the
IEC 584 Standards for K-type.
Display : 3 1/2 digit Liquid Crystal Display (LCD) with a
maximum reading of 1999.
Polarity Indication : Automatic, positive implied,
negative indicated.
Overrange Indication : "OL" or "-OL "
Low Battery Indication : " " is displayed when the
battery voltage drops below operating voltage.
Sampling Rate2.5 time / sec.
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2-2 Environmental Conditions
Operating Temperature : 0°C to 50°C, 0 to 75% RH.
Storage Temperature : -20°C to 60°C, 0 to 80% R.H with
battery removed from meter.
Temperature Coefficient : 0.15 x (Specified accuracy) /
°C, < 18°C or > 28°C.
Power Requirements : Standard 9V battery, NADA 1604
JIS 006P, IEC6F22 size.
Battery Life : Alkaline 250 hours.
Dimensions (H x W x D) :
160mm x 64mm x 26mm without holster.
170mm x 74mm x 39mm with holster.
Weight (including battery) : 300 gms without holster.
430 gms with holster.
Accessories : 2 K-type bead thermocouples (52), 1 K-type
bead thermocouple (51) battery (installed), operator's
manual and protective holster.
2-3 Electrical Specifications
(1) Accuracy is ± (% reading + number of digits) at 23°C ±
5°C less than 75% R.H for thermometer.
MODE L : 51
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Measurement
Range
Reso-
lution Accuracy Input
Protection
3
MODE L : 52
Input protection :
(2) Thermocouple Characteristics
K-type thermocouple.
50BK bead thermocouple
1. Temperature Range : -40°C ~ 204°C (-40°F ~ 399.2°F)
2. Tolerances : ± (2.2°C 0.75%) from 0°C to 204°C
± (2.2°C 2.0%) from 0°C to -40°C
3. Wire Length : 1m, with miniature plug.
Teflon tape insulated.
OPERATION
This instrument is designed to use external K-type
thermocouple as temperature sensor. Temperature
indication follows National Bureau of Standards and
IEC 584 temperature / voltage tables for K-type
thermocouple are supplied with thermometer.
51/52 EN
Measurement
Range
Reso-
lution
Accuracy
(T1 or T2)
Accuracy
(T1 or T2)
4
WARNING
TO AVOID ELECTRICAL SHOCK, DO NOT USE THIS
INSTRUMENT WHEN VOLTAGES AT THE
MEASURE-MENT SURFACE EXCEED 24V RMS OR AC
OR 60V DC. (6Vrms AC OR 9VDC FOR 52) TO AVOID
DAMAGE OR BURNS, DO NOT MAKE TEMPERATURE
MEASUREMENTS IN MICROWAVE OVENS.
3-1 Preparation and Caution before Measurement
1. Before measurement, warm up for at least 30 seconds,
after connecting the thermocouple to the thermometer.
2. If the instrument is used near noise generating
equipment, be aware that the display may become
unstable
or indicate large errors.
3-2 Temperature Measurements
1. Connect the plug of the thermocouple to the connector
of the thermometer.
2. Select the desired input mode, resolution and °C/°F.
3. Use the sensing point of the thermocouple to measure
the surface to be measured.
4. Read the stable reading.
5. Warning: Do not measure the surface if the
potential exceeds 60 Vd.c. or 24 Vr.m.s."
MAINTENANCE
To keep the instrument clean, wipe the case with a damp
cloth and detergent, do not use abrasives or solvents.
Any adjustment, maintenance and repair shall be made
by a skilled person.
To maintain the thermocouple in good condition, observe
the following precautions:
— Avoid excess bending.
— Do not overheat the thermocouple.
— Avoid chemical reactions that can damage the
thermocouple.
51/52 EN
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BATTERY REPLACEMENT
The meter is powered by a single 9V battery. Refer to
Figure 2 and use the following procedure to replace the
battery:
1. Turn the meter off. Remove the thermocouple
connector.
2. Remove the holster.
3. Position the meter face down. Remove the screw from
the battery cover.
4. Remove the battery cover.
5. Lift the battery from case top, and carefully disconnect
the battery from battery connector leads.
6. Install a new battery.
7. Replace the battery cover. Reinstall the screw and
replace the holster.
BATTERY REPLACEME NT(Figure 2)
HOW TO USE THE TILT STAND AND HOLSTER
Swing the stand out for easier
meter reading.
Hang on a nail at
the workbench.
51/52 EN
Screw
Battery cover
9V Battery
Battery connector
6
51/52 EN
Limited Warranty
This meter is warranted to the original purchaser against
defects in material and workmanship for 3 years from the
date of purchase. During this warranty period, Manufactur-
er will, at its option, replace or repair the defective unit,
subject to verification of the defect or malfunction.
This warranty does not cover fuses, disposable batteries,
or damage from abuse, neglect, accident, unauthorized
repair, alteration, contamination, or abnormal conditions of
operation or handling.
Any implied warranties arising out of the sale of this
product, including but not limited to implied warranties of
merchantability and fitness for a particular purpose, are
limited to the above. The manufacturer shall not be liable
for loss of use of the instrument or other incidental or
consequential damages, expenses, or economic loss, or
for any claim or claims for such laws vary, so the above
limitations or exclusions may not apply to you.
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簡介
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規格
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警告
維修保養
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電池更換(圖�)
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有限保固
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