Specifications

RIGOL Chapter 4 Calibration
Service Guide for DM3058
4-2
Calibration Protection
The protection is used to avoid unexpected or non-authoritative calibration. DM3058 is
in a state of calibration protection before delivery. Before calibrating, correct security
code must be input to release protection.
The calibration code could be made of 10 characters at most which is from number
“0~9” and letter “A~Z”. To modify the code, correct former code must be input at first.
Once you save the new code, it would not be lost even if power down or reset the
meter.
The default of calibration code is “DMCAL”.
Set or Reset Security Code
To input or set code, please use “up” and “down” key to select character and “left” or
“right” key to move the position of cursor. If press “up” or “down” key, the character
will roll between “0~9, A~Z, space”.
To reset code, Press , select T/C  PSW to input the former code via direction
keys on front panel and set SecrOff , then enter a new code and press SecrOff .
NOTE
Please record your new code. If forget, please try to default code.
Calibration Notices
The type of calibration is composed of Factory calibration and User calibration. The
parameters calibrate by RIGOL or the third party authorized by RIGOL is saved as
Factory calibration parameters. The User calibration parameters are the ones getting
from following operations, and which will not cover factory‟s or lost even if power
down. You can set the type of current calibration parameters via menu, or resume the
user calibration parameter to default.
To reset code, Press , select T/C  PSW to input correct code and set SecrOff .
Then, press Cal to enter the calibration menu and start calibrating, the results you get
are the use calibration parameters, and which could be resume to defaults if select