Extech 412355A Instruction Manual
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INSTRUCTION MANUAL
Model 412300 and 412355
Current Calibrator and Current & Voltage Calibrator
• Flip-up display/cover
• Source and Measure Voltage / Current
• Hands free operation
• Battery operated, portable
1. INTRODUCTION
Congratulations on your purchase of Extech's Model 412300 Current Calibrator /
Meter or Model 412355 Current / Voltage Calibrator. With proper care this meter will
provide years of safe, reliable service.
412300/55es Ver. 1.5 8/00
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2. SPECIFICATIONS
Measure (signal input) Current
Voltage
Source (signal output) Current
Voltage
Loop Power 12V DC (412300 only)
Ranges / Resolution Current
Voltage
%
Accuracy + (0.075% + 1 digit) or + 2 digits (whichever is greater)
Power 9 volt battery or optional AC adaptor
Max. Load 350 ohms at 20 mA
Display 3 1/2 Digit LCD , 0.5"
Power off Manual or automatic with case closure
Dimensions 3.8x4.2x1.8" (96x108x45mm) folded
Weight 12 oz. (340g)
Accessories Supplied 9V battery, Cal. cable with spade lugs
Optional Accessories AC Adaptor, NIST Cert., Carrying Case
0 -50 mA (Maximum)
0-19.99V (412355 only)
0-24mA
0-10V (412355 only)
0-19.99mA 0.01mA
0-24.0mA 0.1mA
0-1999 mV 1 mV (412355 only)
0-10.00V 10 mV (412355 only)
-25-125.0% 0.1% (412300 only
(4-20mA = 0.0% - 100%))
3. FRONT PANEL DESCRIPTION
1 LCD display
2 Power On/Off switch
3 Function switch
4 Input/Output switch
5 Output adjust
6 AC adaptor connector
7 Battery compartment
8 Range switch
412300/55es Ver. 1.5 8/00
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