Promax PROLITE-50 Serie Manual De Instrucciones página 88

NOTE: There are 9 levels of predefined range: Auto, 1.3 Km, 2.5 Km, 5.0 Km, 10 Km,
20 Km, 40 Km, 80 Km and 120 Km.
«Auto» means the automatic measurement. When this function is selected,
the instrument will automatically make an intelligent selection of adequate
range and pulse width for measurement. The whole process of measurement
does not need any intervention of the operator.
«Auto» means the default settings.
•
Pulse Width Configuration
The selection of pulse width affects the dynamic range and resolution of
measurement trace. With narrow pulse width, there will be higher resolution and smaller
dead zone, however, the dynamic range will be decreased. On the contrary, wide pulse
width can bring higher dynamic range and measure comparatively long distance, but
resolution and dead zone will be affected. Therefore, users should make choice
between dynamic range and dead zone.
The possible values of pulse width depend on the length of the fibre selected in
the previous parameter.
Under menu of parameter configuration, use [
width"; Press [Enter] to select as shown in Figure 5.6. Press [
Page 26
Ra n g e Aut o
Aut o
Pu l s e Wi d t h
Av e . T i me 30s
Wa v e l e n g t h 1550 nm
Me a s . Mo d e
Av e r a g i n g
I OR
1. 4659
Sc a t . Co e f .
- 51 . 50dB
Nr e f l . T h r e . 0. 20 dB
Re f l . T h r e .
- 52 . 00dB
En d T h r e. 3. 00 dB
12Km/ Di v 3 .5 0 d B/ D i v
De l e t e F i l e 3 0s
3 0 s
Ave. Ti m e :
T i me ( y - m- d )
2005- 05- 27 10: 30: 20
8 0 km
Range : 8 0 km
I OR : 1. 4659
Figure 5.5.- Range Configuration
USER'S MANUAL. PROLITE-50
Au t o
Au t o
1. 3km
1. 3 km
2. 5km
2. 5 km
5. 0km
5. 0 km
10 km 10km
20km
20 km
40km
40 km
80km
80 km
120 km
120 km
t ra ce 1 .t rc 1 5 : 2 0
2 5 0 0n s
Pu l se w i d t h : 2 5 0 0 n s
W avel engt h : 1550 nm
] and [
A
B
] to highlight "pulse
] to exit.
01-2006