RS Components 51 206-3722 Manuale utente
DIGITAL THERMOMETER
OPERATOR’S MANUAL
51 206-3722
52 206-3738
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DIGITAL THERMOMETER
OPERATOR'S MANUAL
RS 51 206-3722
RS 52 206-3738
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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.
3. Operator's Manual.
4. Protective Holster.
5. Belt Clip.
1-2 Front Panel
Refer to Figure 1 and the following numbered steps to familiarise 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 symbol and unit annunciators.
2. Thermocouple Connectors — Allows connections of miniature thermocouple plugs (2 for model 52).
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3. Hold Switch — Used to hold the numeric reading. When pressed the HOLD annunciator is displayed.
Conversions are made but the reading is not updated.
This switch is limited to use on a single temperature scale at a time.
4. Power ON/OFF Switch — Turns the thermometer on or off.
5. Resolution Selector — Selects either 0.1 or 1 degree resolution.
6. °C °F Selector — Used to select the °C and °F units.
7. Max. Switch — Press once to display the max. reading in measurements, press again to cancel.
Disable this function before changing control keys to keep reading correctly.
This switch is limited to use on a single temperature scale at a time.
8. T1-T2 Switch — Selects the T1-T2 mode for measuring (52 only).
9. T2 Switch — Selects the T2 mode for measuring (52 only).
10. T1 Switch — Selects the T1 mode for measuring (52 only).
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Figure 1
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SPECIFICATIONS
2-1 General Specifications
This Thermometer conforms to the temperature / voltage tables of the National Bureau of Standards and to the
IEC 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 Rate : 2.5 time / sec.
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2-2 Environmental Conditions
Operating Temperature : 0°C to 50°C, 0 to 75% R.H.
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 : 9V alkaline battery.
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.
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2-3 Electrical Specifications
(1) Accuracy is ± (% reading + number of digits) at 23°C ± 5°C less than 75% R.H for thermometer.
MODEL: 51
Measurement Range Resolution Accuracy Input Protection
-50°C ~ 199.9°C0.1°C ± (0.2% reading + 1°C)
-58°F ~ 199.9°F 0.1°F± (0.2% reading + 2°F)
-50°C ~ 200°C1°C ± (0.3% reading + 2°C)
-58°F ~ 392°F 1°F± (0.3% reading + 4°F)
200°C ~ 1000°C1°C ± (0.4% reading + 2°C)
392°F ~ 1832°F 1°F± (0.4% reading + 4°F)
1000°C ~ 1300°C1°C ± (0.6% reading + 2°C)
1832°F ~ 1999°F 1°F± (0.6% reading + 4°F)
60V d.c. or 24 Vr.m.s.
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MODEL: 52
Input protection: 9V DC or 6V rms.
Measurement Range Resolution Accuracy (T1 or T2)
-50°C ~ 199.9°C0.1°C ± (0.2% reading + 1°C)
-58°F ~ 199.9°F 0.1°F± (0.2% reading + 2°F)
-50°C ~ 200°C1°C ± (0.3% reading + 2°C)
-58°F ~ 392°F 1°F± (0.3% reading + 4°F)
200°C ~ 1000°C1°C ± (0.4% reading + 2°C)
392°F ~ 1832°F 1°F± (0.4% reading + 4°F)
1000°C ~ 1300°C1°C ± (0.6% reading + 2°C)
1832°F ~ 1999°F 1°F± (0.6% reading + 4°F)
Accuracy (T1 — T2)
± (0.5% reading + 1°C)
± (0.5% reading + 4°F)
± (0.5% reading + 2°C)
± (0.5% reading + 4°F)
± (0.5% reading + 2°C)
± (0.5% reading + 4°F)
± (0.6% reading + 2°C)
± (0.6% reading + 4°F)
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