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Table 3-2 lists the menu items available from the pop-up menu. 

Zeroing 

Enables zeroing the internal circuitry of the device.  

For information on zeroing the instrument, refer to 
Zeroing the Instrument in Chapter 4 – Measuring with the 
Thermopile Head and Zeroing the Instrument in 
Chapter 5 – Measuring with the Photodiode Head. 

 Note: The procedure for zeroing the instrument with 

pyroelectric heads is slightly different. For more 
information, refer to Zeroing the Instrument in 
Chapter 6 – Measuring with the Pyroelectric and PD10 
Heads. 

Exposure 
(Pyroelectric heads 
only) 

Measures the total energy exposure. For more 
information, refer to Measuring the Total Energy 
Exposure in Chapter 6 – Measuring with the Pyroelectric 
and PD10 Heads. 

 Note: The exposure menu item is not available in 

StarLab software version 1.00 for the Pulsar and Quasar 
devices. 

Response 
(Thermopile heads 
only) 

Enables adjusting the response factor. This optimizes the 
thermal response time of thermopile heads.  

For information on configuring the response factor, refer 
to Configuring the Response Factor in Chapter 4 –
 Measuring with the Thermopile Head. 

Calibrate 

Enables adjusting calibration factors. 

For information on calibration factors, refer to 
Calibration Factors in Chapter 4 – Measuring with the 
Thermopile Head, Adjusting Calibration Factors in 
Chapter 5 – Measuring with the Photodiode Head, and in 
Adjusting Calibration Factors in Chapter 6 – Measuring 
with the Pyroelectric and PD10 Heads. 

Line Frequency 

Enables setting power line frequency. 

For information on setting power line frequency, refer to 
Setting Line Frequency in Chapter 4 – Measuring with 
the Thermopile Head. 

Ext Trig Control 

Enables external trigger control. 

 Note: The external trigger control is not relevant for 

the USBI, Quasar, Nova-II or Vega devices. 

Turbo Mode 
(Pyroelectric and 
PD10 heads only) 

Logs laser readings at an accelerated rate.  

For more information, refer to Using Turbo Mode in 
Chapter 9 – Working with Log Files.