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8842A
Instruction Manual
2-8
2-10. Display Features
The 8842A features a vacuum fluorescent display with a numeric field and annunciators.
The annunciators are explained in Figure 2-5.
2-11. Error Messages
If the 8842A detects an operator error or an internal failure, it displays an error message
for about 2-1/2 seconds and then resumes normal operation. During this time, the front
panel buttons are ignored. The error message consists of the ERROR annunciator and a
two-digit error code. (See Figure 2-7.) Error codes are explained in Table 2-1.
If the FRONT/REAR switch is set to the REAR position while the mA DC or mA AC
function is selected, ERROR 31 is displayed. In this case the error message is displayed
until you return the switch to the FRONT position or select another function.
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Figure 2-7. Typical Error Messages