Boonton 52000 Series USB CW Power Sensor - Manual (Page 44)

Using the Software
Low limit exceeded
This warning message tells you when you have exceeded the low
measurement limit you have set in the measurement control panel.
When you see this warning message, increase the power being
tested.Refer to Figure 40 on page 44.
Figure 0 Low limit warning
Zero sensor - temperature change
When the temperature of the sensor is too great for the reliable
measurement to be made, the zero sensor and temperature warning
message is displayed. Refer to Figure 41 on page 44.
Figure 1 Zero shift warning