B-26
Model 820 Technical Reference Manual
Interval History Variables
Brackets in the syntax indicate optional characters and oper-
ands.
Example:
E 1
Date and Time of Occurrence
ddmmmyy hh:mm:ss
E 2
Duration
hh:mm:ss / mm:ss.ss
E 3
Lint
nnn.n dB
E 4
SEL
nnn.n dB
E 5
Lmax
nnn.n dB
E 6
Lpeak
nnn.n dB
E 7
UnWeighted Peak nnn.n dB
E 8
Peak Exceedance Count
nnn
E 9
Overload Counts
nnn
E 10
Illegal Indication
BEEP$+”ILLEGAL”
E 17
Excd Time-Hist Samples
nnn
E 18<,n>
Excd Time-History
nnn.n dB
E 19<,n>
Excd T.H. Time
-sss.ss
E 20<,n>
Excd T.H. Number
-nnn
E 21<,n>
Excd T.H. Bargraph
**********************
E 25
EXCD SYMETRY
nnn.nn%
E 101
Excd Variables 1-10
Macro
E 102
Excd Time-Hist 17, 18...
Macro
Syntax
Response
I[nterval]var_noIntv_var
I9, -5 (current record is 17)