Delta-T Devices SunScan SS1 User Manual page 67

Troubleshooting
While running SunData
SunData reports "SunScan probe not connected".

Check the cable connections. Check the condition of the batteries in
the SunScan probe.
SunScan or BF5 give inconsistent light readings.

Make sure the desiccant condition indicators are blue.

See the advice on PAR calibration in Measurement Options on
page 46.
Problem Reports
It will help considerably if you can send as much relevant detail as
possible. In particular:

a description of the fault, its symptoms, or error messages

what components of the SunScan system you are using

details of any PC you are using

software version numbers and hardware serial numbers (see below)
SunScan circuit schematics and data
See the SunScan Technical Manual.
Version and serial number location
SunData S/W programs:
In SunData program select Utilities, About
SunScan probe
The serial number label is on the side of the probe handle.
The PROM chip (inside the probe handle) is labelled with its version
number. This can also be seen at the top of the SunData title screen when
the probe is connected.
Beam Fraction Sensor
The serial number label is on the underside of the case.
SS1 User Manual v3.3
Technical Reference  67