Escort 3136A - 3-10 Selecting Local Operation Mode; 3-11 Operating Arithmetic Functions

3-10 Selecting Local Operation Mode
to return the operation control priority from remote mode
(computer controlled) to local mode (user controlled).
3-11 Operating Arithmetic Functions
 Using dBm Modifier
The dBm measurement is used for decibel conversion of power per 1mW
consumption into a 600
Ω
load and can be applied to Vdc, Vac and
Vdc+Vac measurements only. Voltage measurement is converted to dBm
by using the following formula:
then followed by to toggle in (and out) dBm modifier mode
The meter will displays the dBm modifier on the primary display and the
reference impedance will be indicated and flashed on the secondary
display within 3 seconds. The default value by factory is 600
Ω
.
In dBm modifier mode, press
and to select the different
impedance desired, the reference impedance will be indicated and flashed
on the secondary display within 3 seconds. The new setting value will be
kept until power off.
Any of the following 21 types of reference impedance may be selected:
8000
Ω
, 1200
Ω
, 1000
Ω
, 900
Ω
, 800
Ω
, 600
Ω
, 500
Ω
, 300
Ω
, 250
Ω
,
150
Ω
, 135
Ω
, 125
Ω
, 124
Ω
, 110
Ω
, 93
Ω
, 75
Ω
, 50
Ω
, 16
Ω
, 8
Ω
, 4
Ω
, 2
Ω
dBm = 10x log
10
[1000 x (measuring value)
2
/reference impedance]
 Operation procedures:
then followed by to enter dBm calculation mode.
or to scroll to the desired impedance value shown as the following
operation example. The secondary display will indicate the measuring value
of voltage after finished impedance selection.
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