Probe connection
H 
Note:
When the battery empty state is displayed, the batter-
ies should be replaced at once. 
The AutoSigma 3000 automatically turns off when 
the batteries become too weak for reliable operation. 
When using the equipment in remote locations it is ad-
visable to carry spare batteries. Discharged or faulty 
batteries are classifi ed as Special Waste and must be 
disposed of accordingly.
3.2  Probe connection
The connecting cable for the probe is a 5 way LEMO 
to 5 way LEMO and may be used either way round.
–  Align the red dots of the LEMO plug and the socket 
of the cable and plug together, they are polarised 
and will therefore not engage unless correctly mat-
ed.
–  Similarly attach the cable to the instrument. 
The connectors are self locking and will not become 
detached without being released by pulling the serrat-
ed section of the plug.
H 
Note:
 Before a probe can be used to take accurate measure-
ments, its Code Number (if not already contained in 
the probe fi le) must be entered into the instruments 
operational memory – see section 3.3. Instruments 
supplied from the factory with a probe will already 
have the  code number entered. 12.7 mm diameter 
probes have a 4 digit code and 8 mm diameter probes 
a 2 digit code.
Preparation for operation
AutoSigma 3000  Issue 04, 06/2007  3 - 3