Extech 421502 Handleiding
Extech
Omgevingsthermometer
421502
Lees hieronder de đź“– handleiding in het Nederlandse voor Extech 421502 (12 pagina's) in de categorie Omgevingsthermometer. Deze handleiding was nuttig voor 35 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld
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User’s Guide
Model 421502
Dual Input Type J/K
Digital Thermometer
• Dual input T1 / T2 / T1 – T2 displays
• Maximum temperature record mode
• Selectable units
• Data Hold
INTRODUCTION
Congratulations on your purchase of Extech’s Digital Thermometer. This professional meter,
with proper care, will provide years of safe reliable service.
2 421502 Ver. 1.9 12/05
SPECIFICATIONS
Display 5 digit LCD multifunction display
Battery Power Supply NEDA 1604, IEC 6F22, or 006P 9VDC battery.
Auto Power off Meter shuts down after approx. 30 mins. of inactivity
Battery life 160 hours typical with carbon zinc battery
Dimensions / Weight 7.5 x 3.6 x 2.1” (192x91x52.5mm); 11.7oz. (365g)
J TC Range -328 to 1922
oF (-200 to 1050oC)
K TC Range -328 to 2498
oF (-200 to 1370oC)
Resolution 0.1oC or 0.2oF
Temperature units Selectable C or F temperature units
±(0.05% rdg + 0.3oC) -50oC to 1370oC
±(0.05% rdg + 0.7oC) -50oC to -200oC
±(0.05% rdg + 0.6oF) -58oF to 2498oF
Accuracy
±(0.05% rdg + 1.4oF) -58oF to -328o
F
Temperature Coefficient 0.1 times the applicable accuracy specifications per
oC from 0oC
to 18oC and 28oC to 50oC (32oF to 64oF and 82oF to 122oF)
Water resistant housing Gasket protected front panel
Input Protection 24VDC or 24VAC rms max. input on any combination of inputs.
Max voltage between T1 and T2 inputs = 1V
Reading rate One reading per second
Input connectors Accepts standard miniature thermocouple connectors
Supplied thermocouple 4', type K, teflon insulation,
Max insulation temp: 260
oC (500oF)
Accuracy: +2.2oC or +0.75% of rdg (whichever is greater)
Ambient Operating Range 32 to 122oF (0 to 50oC); less than 80% RH
Storage Temperature -4 to 140oF (-20 to 60
oC); less than 70% RH
Alarm 95dB
3 421502 Ver. 1.9 12/05
1
2
3
FRONT PANEL DESCRIPTION
1. Thermocouple Input Jacks
2. LCD Display
3. Keypad
OPERATION
Ensure that a fresh battery is installed by powering the meter (press the Power key) and
observing the LCD display. If the LCD does not display characters, check the battery.
Connect the thermocouples to the meter’s thermocouple input jacks (meter top).
NOTE: If the SET or MIN/MAX/AVG MODE is engaged, the meter cannot be powered
down. Exit these modes before attempting to power down.
Temperature Units
The meter's dual display (one for each thermocouple input) can read either in
oC or oF.
Press the "C/F" key to toggle between
oC and oF temperature units. The meter recalls the
selected units of measure the next time the meter is powered up.
Data Hold Mode
During measurements, pressing the "Hold" key "freezes" the MAIN DISPLAY temperature
value and the "HOLD" indicator will appear on the LCD. Press "Hold" again to return to
normal operation. In MIN/MAX Mode, pressing the "Hold" key cancels the data recording
session (pressing "Hold" again resumes recording).
Main Display Input Selection "T1, T2, or T1 - T2"
Pressing the "T1 T2 / T1 - T2" key (the key with the number 4 overlay) permits the user to
select the thermocouple input configuration which will be reflected on the meter's Main
Display (largest LCD digits). Choose "T1 or T2" to show either thermocouple input 1 or 2
respectively. Select "T1 - T2" to display the difference between the two thermocouple
input temperatures. In T1 - T2 mode, a reading of zero indicates that both thermocouples
are reading the same temperature.
Product specificaties
| Merk: | Extech |
| Categorie: | Omgevingsthermometer |
| Model: | 421502 |
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