HL-G1 User's Manual
3.6 When the Status of the Output Data Is Undefined
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3.6 When the Status of the Output Data Is Undefined
During the operation of the system it is possible that the status of the output data becomes
undefined, i.e. there is no determined value to be output. This is not the same as the alarm
status, when the alarm indicator lights up in orange.
The status of the output data becomes undefined under the following circumstances:
After you have made or changed system settings when the measurement is being re-
started.
After the system has been turned on and has received a reset signal (MI signal ON for
80ms). The status of the output data will remain undefined after a reset until the sen-
sor has performed the number of measurements needed for the average function (see
page 54).
After the laser has been stopped (MI signal ON for 580ms).
After the sampling cycle has been switched (see page 51).
After the system has been initialized.
As long as the sensor has not performed the number of measurements needed for the
average function.
When the output data is undefined, the system output is as follows:
Digital
output:
Analog output: 11.000 [V] or 21.6 [mA] (see note 1)
NOTE
1. 21.6mA is the initial value. The analog output can be set to a fixed value
when the status of the output data is undefined (see page 68).
2. While the output data status is undefined, the system will ignore the
zero-set signal.
3. Depending on the settings, the status of the output data may not become
undefined even under the circumstances listed.
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