Extech Instruments 421502 User Manual

7
421502-en-GB_V2.0 3/19
Specifications
Display
5-digit multifunction LCD
Battery Power
9V (NEDA 1604, IEC 6F22, or 006P)
Auto Power OFF (APO)
Meter switches OFF after approx. 30 mins. of inactivity
Battery life
160 hours typical with carbon zinc battery
Dimensions / Weight
192 x 91 x 52.5mm (7.5 x 3.6 x 2.1”) / 365g (11.7 oz.)
Type-J thermocouple range
-200 ~ 1050
o
C (-328 ~ 1922
o
F)*
Type-K thermocouple range
-200 ~ 1370
o
C (-328 ~ 2498
o
F)*
*Safety note: The supplied type-K thermocouple can only be used
to measure temperature to 260
o
C (500
o
F). To measure higher
temperatures please obtain a thermocouple rated for higher
temperature
Resolution
0.1
o
C (0.2
o
F)
Temperature units
Selectable
o
C /
o
F
Accuracy
± (0.05% rdg + 0.3
o
C) -50
o
C ~ 1370
o
C
± (0.05% rdg + 0.7
o
C) -50
o
C ~ -200
o
C
± (0.05% rdg + 0.6
o
F) -58
o
F ~ 2498
o
F
± (0.05% rdg + 1.4
o
F) -58
o
F ~ -328
o
F
Temperature Coefficient
0.1 times the applicable accuracy specifications per
o
C from 0
o
C ~
18
o
C and 28
o
C ~ 50
o
C (32
o
F ~ 64
o
F and 82
o
F ~ 122
o
F)
Water resistant housing
Gasket protected front panel
Input Protection
24VDC or 24VAC rms max. input on any combination of inputs
Measurement rate
One reading per second
Input connectors
Accepts standard miniature thermocouple connectors
Supplied thermocouple
Type-K with Teflon® insulation. Cable length: 4 ft. (1.2m)
Max. insulation temperature: 260
o
C (500
o
F)*
Accuracy: ± 2.2
o
C (4
o
F) or ± 0.75% of reading (whichever is greater)
*Safety note: The supplied thermocouple can only be used to
measure temperature to 260
o
C (500
o
F). To measure higher
temperatures please obtain a thermocouple rated for higher
temperature.
Operating conditions
0 to 50
o
C (32 to 122
o
F); less than 80% RH
Storage conditions
-20 to 60
o
C (-4 to 140
o
F); less than 70% RH
Alarm beeper volume
95dB

Extech Instruments 421502 Specifications

General

Brand	Extech Instruments
Model	421502
Category	Thermometer
Language	English