Prime DS101 Operating Instructions Manual page 6

OUTPUTS
The DS101 outputs include a form C relay for reporting OVER conditions and a dc logic output
for reporting no material in front of the probe.
The logic output is labeled the NOTHING output since it provides an indication that nothing is
present in front of the probe. The intent of this output is to signal that a sheet did not feed. This
output provides a dc sourcing signal that switches between zero volts and 22 volts, delivering up
to 100 mA.
The NOTHING output is ON (sourcing at 22 volts) when material is present in front of the probe.
INDICATORS
The function of the indicators and controls on the DS101 are described in the following
paragraphs:
During normal gauge operation, the yellow DOUBLE indicator is ON whenever the received
signal is closer to the calibrated value for double thickness than to the calibrated value for single
thickness. The green NO DOUBLE indicator is ON whenever the received signal is closer to the
calibrated single thickness value than to the calibrated double thickness value.
Through various flashing patterns, these indicators also provide information regarding system
mode (calibrate vs operate), firmware version number, and error conditions. Reading firmware
version is described later in this document. All other flash patterns can be interpreted as follows:
Alternate flashing of yellow and green indicates busy such as during initialization after power-up.
Simultaneous flashing of yellow and green indicates failed calibration. The reasons are various
such as calibration sample too thick, sample too thin, too little difference between double and
single, or too much air gap between metal and probe.
Green flashing, yellow off - awaiting single sample for calibration.
Yellow flashing, green off - awaiting push-button press for calibration on double.
Green flashing, yellow on - probe error. Probe not connected, probe wire broken, or probe is
defective.
6