15
Measurement 2/2: configuration of the measurement parameters (cont'd)
: resistive power reference W
Adjustment of the reference resistance (ref) between 1
and 10,000
, for resistive power
measurements. The calculation performed is:
(measured voltage)
2
/ Ref (unit W)
(measured current)
2
x Ref (unit W)
Default value 50
.
CLAMP 1/1: Parameterizing of the clamp function
The
function (y = Ax) enables the user, measuring a current with a
current clamp in:
-
Volts
x V/A
-
Ampères
x A/A
to assign the ratio (or transformation ratio) and the appropriate unit, in order to obtain a
direct reading of the measured current.
Depending on the quantity measured, the device calculates the function Ax associated with
it.
The programming is in 3 stages:
1.
Selection of the quantity measured, Measurement (V, A)
2.
Definition of the ratio A displayed on the clamp Val1/ Val2 or: xxxx.XA/xxxx.XV
(default is 1A/1V)
3.
Definition of the physical unit to be displayed (default is A)
The ratio A and the unit can be programmed for each quantity measured (V, A).
MATH: Parameterizing of the MATH function
The
function (y = Ax + B) enables the user, measuring any physical
quantity in:
-
Volts
(process 0-10V or high-voltage probe, for example)
-
Ampères
(4-20mA current loop or current clamp, for example)
-
Frequency
(measurement of flow rates, speeds of rotation, for example)
-
Ohms
(resistive position sensor, for example)
to convert it and assign the appropriate unit, in order to obtain a direct reading of the
original quantity on the instrument.
Depending on the quantity measured, the device calculates the MATH function associated
with it.
The programming is in 4 stages :
1.
Selection of the quantity measured (V, A,
,Hz)
2.
Definition of the coefficient A of the function y = Ax + B
3.
Definition of the coefficient B of the function y = Ax + B
4.
Definition of the physical unit to be displayed by the navigator (Upper-case and
lower-case)
The coefficients A and B and the unit can be programmed for each quantity
measured (V, A,
, Hz).
