Specifications - Extech Instruments 421504 User Manual

Specifications

General Specifications
Display
Over-range and open input Dashes are displayed in place of a temperature reading
Power Supply
Battery life
Auto Power Off
Safety
Weight
Dimensions
Accessories supplied
Range Specifications
Display Resolution
RTD Probe (Pt 385 100Ω)
RTD Probe (Pt 3926 100Ω)
Temperature units
Accuracy
Temperature Coefficient
Input Protection
Reading rate
Input connectors
Ambient Operating Range
Storage Temperature
5-digit LCD with overload/open-input indication
9V battery
100 hours typical with carbon zinc battery
Meter turns off automatically after 30 minutes
CE approved and water resistant meter housing
11.73oz. (365 g)
7.56 x 3.58 x 2" (192 x 91 x 52.5mm)
9V battery, RTD connectors (2), and protective holster
o o
0.2 F or 0.1 C Resolution
o o
-328 to 1472 F (-200 to 800
(European curve Alpha = .00385)
o o
-328 to 1166 F (-200 to 630
(U.S. curve Alpha = .003926)
Selectable C or F temperature units
Accuracy is specified for operating temperatures in the
o
range of 64 to 82 F (18 to 28
year, not including the RTD probe error
o o
±(0.05% rdg + 0.2 C) for C Scale
o o
±(0.05% rdg + 0.4 F) for F Scale
Multiply the applicable accuracy specification per
o o
from 0 to 18 C and 28 to 50
o
122 F) by 0.1
24VDC or 24VAC rms max. input on any combination
of inputs.
NOTE: Max. Voltage between T1 and T2 during
measurement = 1V
One reading per second
Accepts standard 3-terminal RTD sub-miniature
connectors (flat blade, 7.9mm spacing)
o o
32 to 122 F (0 to 50 C); less than 80% RH
o o
-4 to 140 F (-20 to 60 C); less than 70% RH
3 Model 421504 Version 1.9 December 2004
C)
C)
o
C) for a period of one
o
C
o
C (32 to 64 F and 82 to