Table of Contents
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Introduction
Congratulations on your purchase of the Extech 422123 Precision Multifunction Calibrator.
This device can source mA, mV, V, Temperature (C/F) and Frequency. Its 24V loop power
supply drives current loads to 1000Ω. This device also offers STEP and AUTO RAMP
features. Careful use of this meter will provide years of reliable service.
Specifications
Display
Output (source) Ranges, Resolution, and Accuracy
DC Current
DC Voltage
Type K Temperature
Type J Temperature
Type E Temperature
Type T Temperature
Frequency
Accuracy notes
Power supply
Power Consumption
Operating Conditions
Storage Conditions
Dimensions
Weight
Accessories
Large 5 digit multifunction LCD
4 to 20.000mA, 0 to 20.000mA, 0 to 24.000mA
Accuracy for all mA ranges: ± (0.025% + 3 digits)
0 to 100.00mV; 0 to 1.0000V; 0 to 12.000V;
Accuracy for all voltage ranges: ± (0.05% + 3 digits)
o
-328 to 32
F (-200 to 0
o
32 to 2400
F (0 to 1300
o
-148 to 32
F (-100 to 0
o
32 to 1400
F (0 to 760
o
-148 to 32
F (-100 to 0
o
32 to 1292
F (0 to 700
o
-328 to 32
F (-200 to 0
o
o
32 to 752
F (0 to 400
1 to 125 Hz;
126 Hz to 62,500 Hz;
All published accuracies are 'of reading'. Meter must be
warmed up for 20 minutes before use for optimum accuracy.
9V battery, external battery pack (6 x 1.5V 'AA'),
or optional AC adapter;
60 to 180mA
o
o
32 to 122
F (0 to 50
C); 85% RH max.
o
-4 to 140
F (-20 to 60
3.46 x 6.61 x 1.03" (88 x 168 x 26mm)
11.63 oz. (330g)
Test leads (banana to alligator clip type), carrying case, 9V
battery, battery-pack with six 1.5V AA batteries, and two
temperature cables (Type-K & Type J; sub-miniature to sub-
miniature connector type).
2
o
C);
Accuracy: ±2.0
o
C);
Accuracy: ±1.5
o
C);
Accuracy: ±1.6
o
C);
Accuracy: ±1.2
o
C);
Accuracy: ±1.6
o
C);
Accuracy: ±1.2
o
C);
Accuracy: ±1.8
C);
Accuracy: ±1.5
Accuracy: ± 0.04Hz
Accuracy: ± (0.01% + 0.04Hz)
o
C); 85% RH max.
Model 422123 Ver. 1.1 April 2001
o
o
F (1.1
C)
o
o
F (0.8
C)
o
o
F (0.9
C)
o
o
F (0.7
C)
o
o
F (0.9
C)
o
o
F (0.7
C)
o
o
F (1.0
C)
o
o
F (0.8
C)
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