Device

The address (in decimal and hexadecimal) and signal level of each

device on the network is displayed in turn by pushing the “SELECT”

button. On Foundation fieldbus™ networks, the first device shown

will be the LAS. Measurements greater than 150mV are OK.

Average Noise

Displays the average noise based on the average of the last 100

noise measurements. Noise levels are measured and displayed in 3

frequency bands: frequencies in the fieldbus signalling band (Fieldbus

Frequency, FF), frequencies below the fieldbus signalling band (Low

Frequency, LF) and frequencies above the fieldbus signalling band

(High Frequency, HF). The particular frequency band displayed is

selected by pushing the “SELECT” button. Measurements of less

than 75mV are OK.

Peak Noise

Displays the peak noise recorded since the Monitor was connected.

The value displayed is the highest noise level measured since the last

reset. Peak noise levels are measured and displayed in the same three

frequency bands as average noise. Measurements of less than 75mV

are OK.