ETS-Lindgren HI-6113 Laser Data Interface and Probe Measurement System - Manual (Page 22)

22 | HI-6113 Indicators
The HI-6113 Laser Data Interface contains the laser for powering the
Field Probe, and also handles the communication between the probe and the
host computer.
The first two LEDs on the front of the device indicate the status of the laser:
 LASER HOT (red)
- Constant On —This is a warning that the laser is running too hot
and the system should be checked. Dirty fiber ends, poor inline
connections, or damaged fiber cables are among the causes of a
LASER HOT warning. The system should be shut down as soon
as possible, and the cause of the additional heat investigated.
Continuing to run in a LASER HOT state will reduce the life of the
HI-6113.
- Flash —This is an indication that the laser current is approaching
0.8 mA. During the initialization phase of the startup process the
HI-6113 provides the probe with more light and then rolls back the
power to a normal level. In these instances the user may see
LASER HOT flash on; this is normal operation.
 LASER OK (blue) —This is the normal status when probe
communication is established and the HI-6113 is providing laser light
to the Field Probe for power.
 RECEIVE (amber) and TRANSMIT (white) —These are illuminated
during normal use. RECEIVE indicates the communication between
the Field Probe and the HI-6113, and TRANSMIT indicates the
communication between the host computer and the HI-6113.
 POWER (Green) —This indicates that the HI-6113 is using power from
the DC power supply. This should be lit as soon as the HI-6113 is
connected to the power supply.