6247G/6247C DC Voltage Current Source/Monitor Operation Manual
1.7 Warm-up Time
1-14
1.7
Warm-up Time
Allow the 6247G/6247C to warm up for at least 60 minutes after turning on the power to ensure the specified
accuracies of the 6247G/6247C.
1.8
Calibration
Calibrate the 6247G/6247C in accordance with the procedure described in Chapter 8 "CALIBRATION."
When asking ADC for calibration service, contact an ADC CORPORATION sales representative.
1.9
Life Limited Parts
In addition to the parts listed in "Safety Summary," the 6247G/6247C also includes the following parts that
are life limited.
Follow the guidelines below to replace them. Contact an ADC CORPORATION sales representative for
replacement.
CAUTION:
The 6247G/6247C internally counts the number of Operate/Standby relay operations.
It can be checked from the menu or by using the remote commands.
The output relay turns ON or OFF every time the output status switches between Operate and
Standby.
To enhance the relay durability, use the suspend function. (Refer to Section 5.2.4.4, "Suspend Func-
tion.")
Normal operation is possible when the above expected life cycle is reached but immediate relay
replacement is recommended.
Recommended calibration interval
1 year
Part name
Expected life cycle
Remarks
Operate/Standby relay
1,000,000 operations
Replace when the switching cycle between
"Operate" and "Standby" reaches the numbers
of cycles noted at left.
Cooling fan
40,000 hours
When the cooling fan is faulty, the message
"ERR401 Fan Stop" is displayed and the
operation stops. In this case, contact an ADC
CORPORATION sales representative.
Vacuum fluorescent display
20,000 hours
Panel key
500,000 operations
USB connector
1,500 times
Rotary knob
1,000,000 operations
