ITech IT9121 Series, User Manual

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Routine
Maintenance
Copyright © Itech Electronics Co., Ltd. 38
Chapter7 Routine Maintenance
This chapter describes general maintenance items and maintenance methods
of the IT9121 power meter.
7.1 Self-inspection
The IT9121 power meter has a self-inspection function. See “Power-on Self-Test”
of Chapter 3 “Inspecting the Instrument” of IT9121 Installation Instructions for
detailed steps of self-inspection.
7.2 Error Information References
The IT9121 power meter has a detailed error and prompt information function,
so as to help the user to easily carry out positioning and measurement during
measurement and use.
This section describes all error information of the IT9121 power meter as well
as error causes and disposals. All prompt information is listed.
Prompt Message List
Prompt information Explanation of prompt information
Cal Zero is working! The instrument is calibrating the zero point.
Cal Zero is completed! The instrument has completed zero point
calibration.
Test screen Self-inspection of LCD screen
Test dsp Self-inspection of DSP.
Test beep Self-inspection of the buzzer.
SelfTest is finished! The instrument has finished the self-test.
Softkey is not available The current soft key is not available.
Time set ok! The time setting is completed.
Meter Initialization Initialization of general measurement
Integ Initialization Initialization of integral function
Scope Initialization Initialization of the oscilloscope function
Harmonic Initialization Initialization of the harmonic function
Inrush Initialization Initialization of the inrush function
Setup Initialization Initialization of setup
System Initialization Initialization of the system
Initialization is finished! Initialization is finished.
Integ start Integration is started.
Integ stop Integration is stopped.
Integ time up The integral time is up.
Max page has been reached. It displays The maximum page has been
reached.
One page should exist at least One page should exist at least.
Not used in current state The current operation is not available.
Please reset first Please reset first.