Oerlikon THERMOVAC TM101 Operating Instructions Manual - page 12
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300306186_002_A2 - 12/2010 - © Oerlikon Leybold Vacuum
5) Data Logger Mode:
The actual pressure is displayed.
The data memory is deleted. The TM 101 is in Data Logger Mode and from now
on stores new extremal pressure values and –if applicable- up to 2000 mea-
surements with the preset logging rate (see chapter 5.1).
The maximum time span for data recording arises from the capacity of the
gauge's internal memory and the selected logging rate, e.g.:
Logging rate 1 s
approx. 33 min
Logging rate 10 min
approx. 13 days 21 hours
For data storage a battery-independent memory-IC is used whereas the stored
minimum and maximum values are lost when the battery is exchanged.
Data logging is stopped if no further memory is available, when the vacuum
meter is switched-off or when it is connected to a PC via USB (see chapter 4.3).
In the Data Logger Mode the TM 101 keeps operating continuously until it is
switched-off manually or, after the maximum operation time has elapsed, auto-
matically (see chapter 5.4).
Switch-off the vacuum meter during data logging:
Press Mode-Key twice: return to 1) Auto-Off Mode.
4.4 PC Mode
For data transmission the TM 101 can be connected to a PC via USB interface.
The VacuGraph™ Windows™ Software (accessory) supports online recording of
measurements as well as the read-out of the TM 101 data memory. Measure-
ments are plotted as a diagram and can be exported as text file for further
analysis.
The separately saved values of minimum and maximum pressure cannot be
transmitted to the PC.
Further you can perform any parameter settings such as logging rate, display
unit or gas correction factor easily by means of the VacuGraph™ software.
MODE
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