Page 2 Model 421508 Version 1.0 October 2002
Specifications
General Specifications
Display
5-digit (9999.9), 3-Display, LCD with EL Backlighting
Water resistant housing Gasket protected front panel
Input Protection
24VDC or 24VAC rms maximum input on any combination of
inputs. Max voltage between T1 and T2 inputs is 1V
Reading rate
One reading per second
Input connectors
Accepts standard sub-miniature thermocouple connectors
Operating conditions
32 to 122
o
F (0 to 50
o
C); less than 80% RH
Storage conditions
-4 to 140
o
F (-20 to 60
o
C); less than 70% RH
Dimensions / Weight
7.5 x 3.6 x 2.1” (192 x 91 x 52.5mm); 11.7oz. (365g)
Power Supply
9V battery
Auto Power off
Meter automatically turns off after 30 minutes of inactivity
Battery life
100 hours typical
Range Specifications
Thermocouple Range
Resolution
K type
-328 to 2501
o
F (-200 to 1372
o
C) 0.1
o
F (0.1
o
C) from 0 to 700
o
F,
0.2
o
F all other ranges
J type
-346 to 1922
o
F (-210 to 1050
o
C) 0.1
o
F (0.1
o
C) from 0 to 500
o
F,
0.2
o
F all other ranges
T type
-328 to 752
o
F (-200 to 400
o
C) 0.1
o
F (0.1
o
C) from 0 to 600
o
F,
0.2
o
F all other ranges
E type
-346 to 1454
o
F (-210 to 790
o
C) 0.1
o
F (0.1
o
C) from 0 to 450
o
F,
0.2
o
F all other ranges
R type
32 to 3212
o
F (0 to 1767
o
C) 1
o
F (1
o
C)
S type
32 to 3212
o
F (0 to 1767
o
C) 1
o
F (1
o
C)
N type
-58 to 2372
o
F (-50 to 1300
o
C) 0.2
o
F (0.1
o
C)
Accuracy Specifications
Thermocouple Accuracy
K, J, T, E types
±(0.05% rdg + 0.6
o
F) -58
o
F to 2498
o
F
±(0.05% rdg + 1.4
o
F) -58
o
F to 346
o
F
±(0.05% rdg + 0.3
o
C) -50
o
C to 1370
o
C
±(0.05% rdg + 0.7
o
C) -50
o
F to -210
o
C
N type
±(0.05% rdg + 1.4
o
F) -58
o
F to 32
o
F
±(0.05% rdg + 0.6
o
F) 32
o
F to 2372
o
F
±(0.05% rdg + 0.7
o
C) -50
o
C to 0
o
C
±(0.05% rdg + 0.3
o
C) 0
o
F to 1300
o
C
R, S types
±(0.05% rdg + 0.6
o
F) -58
o
F to 2498
o
F
±(0.05% rdg + 1.4
o
F) -58
o
F to 346
o
F
±(0.05% rdg + 0.3
o
C) -50
o
C to 1370
o
C
±(0.05% rdg + 0.7
o
C) -50
o
F to -210
o
C
Temperature
Coefficient
0.1 multiplied by the accuracy per
o
C from 0
o
C to 18
o
C and 28
o
C to
50
o
C (32
o
F to 64
o
F and 82
o
F to 122
o
F)
Supplied
Thermocouples
4', type K (with teflon insulation) Max insulation temp: 500
o
F (260
o
C)
Accuracy: ± 4
o
F (2.2
o
C) or ± 0.75% of rdg (whichever is greater) from
32 to 1472
o
F (0 to 800
o
C)
