Extech 422123
Precision Multifunction Calibrator

• Source 4 to 20mA, 0 to 20mA or 0 to 24mA with 0.001mA resolution
• Select Type K, J, T or E thermocouple for precision calibrations in °F or °C
• Output 0 to 100.00mV, 0 to 1.0000V or 0 to 10.000V
• Frequency source of 1Hz to 62.5kHz in over 700 steps
• Self-contained 24V loop power supply drives current loads up to 1000Ω
• User can easily set output steps from 1% to 100%
• Basic 4 to 20mA process loop accuracy of 0.025%
• Large 5 digit LCD display
• Step and auto-ramp features
• Simple keypad operation
• Audible warning if load is open with mA output or shorted with V output
• Powered by internal 9V battery or external battery pack (attaches to meter stand) for extended field applications or optional AC adaptor

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