Users manual
ET1260B and ET1260A
6 1/2 Digit Multimeter
31
value which have been converted to dBm values. dB value measurement is only suitable for DC
voltage measurement and AC voltage measurement.
dB value = dBm value of readings-dBm value of relative values.
Relative value can be adjusted and set as any value from -120dBm to 120dBm, which is stored in
volatile memory and will be cleared out after cutting off power, resetting remote interface or
changing measurement function.
Modify reference resistance value: Press
to enter setting interface, and edit relative
value through direction keys.
Press the softkey of Current value (
) to set the
Preset value
as the current reading.
Press the softkey of Default (
) to reset the
Relative value
to 0.
After setting, press the softkey of Exit (
) to go back to the former-layer interface.
3.2.4 Limit test
Limit test function can be used to test whether it exceeds/does not exceed the specified upper or
lower limit, indicate signals passing or failing test (screen display
＋
beeping), and can output
negative pulse through RS232 serial port on instrument rear panel. If the measured reading is
within the specified limited range, multimeter will output a negative pulse on the pin 1; while it
exceeds the upper or lower limit, multimeter will output a negative pulse on the pin 9.
Upper and lower limit can be set as any value from 0 to 120% of the highest measurement
range in the current function.
The upper and lower limit values are stored in temporary memory, and after multimeter cuts
Negative pulse
①
Passing output
⑤
Common terminal
⑨
Not passing output
