Campbell TDR100 Bedienerhandbuch PDF herunterladen (Seite 26)

TDR100

Section 7 for discussion of the electrical conductivity measurement method and

Section 6.2.13.1 for discussion of Kp..

6.2.3 Parameter 3: Multiplexer and Probe Selection

Addressing scheme: ABCn

Where:

A -- Level 1 multiplexer channel

B -- Level 2 multiplexer channel

C -- Level 3 multiplexer channel

n -- the number of consecutive probes; addressing starts with the channel

specified for the highest level multiplexer.

Note: enter a 0 when a level is not used.

Example 1

An entry of 1008:

Entry

Description

1 channel 1 is specified for the level 1 multiplexer.

0 the level 2 multiplexer is not used.

0 the level 3 multiplexer is not used.

8 8 consecutive probes are read; the probes are connected to

channels 1, 2, 3, 4, 5, 6, 7, and 8 of the level 1 multiplexer.

Example 2

An entry of 3624:

Entry

Description

3 channel 3 is specified for the level 1 multiplexer.

6 channel 6 is specified for the level 2 multiplexer.

2 channel 2 is specified for the level 3 multiplexer.

4 4 consecutive probes are read; the probes are connected to

channels 2, 3, 4, and 5 of the level 3 multiplexer.

6.2.4 Parameter 4: Waveform Averaging

Sets the number of measurements averaged at a given distance from the

TDR100. A value of 4 is recommended. Higher values can be used when

noise is present. Averaging is useful when noise from power sources or when

noise of random nature is superimposed on the reflection waveform.

Averaging is accomplished by collecting n values at a given distance before

collecting values at the next distance increment where n is the value entered in

Average.

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 55 56

Keine Kommentare

Campbell TDR100 Bedienerhandbuch Seite 26