Data Consultation; Main Display; Consulting Data Stored By The Lrf-04 - CESVA LRF-04 Manual Del Usuario

Exit: This finalises the programming and requests confirmation that new programming
has been recorded.
The LRF-04 may also be programmed from a PC via a serial port, RS-232 cable and the
corresponding software.

4. DATA CONSULTATION

As indicated above, the LRF-04 displays and records the values of the measured parameters
as well as characterising in detail the activity that has taken place in the establishment where
it is installed. The stored data may be consulted on the LCD display and the keyboard
provided with the LRF-04.

4.1 Main display

While the LRF-04 is working, the following information appears on the LCD display:
•
Current date and time.
•
The attenuation applied by the LRF-04 in numerical and graph format (progress bar).
•
Indicator of the state of the LRF-04: session, day/night.
•
Indicator of the sound pressure level measured in the establishment. If the measured
level is below 60 dBA, UND will appear. If the level is above 120 dBA, UP will appear.
•
If the sensor has been tampered with, the message SENSOR INACTIVE will appear
on the progress bar as long as the manipulation lasts. The sound pressure level
indication will be replaced by three dashes (- - -), since it will not have been possible
to measure this level.
•
If the LRF-04 is disconnected from the mains, the SUPPLY DISCONNECTION
message will appear on the progress bar.
•
When the date and time correspond to a non-working period, the NON-WORKING
PERIOD message will appear on the progress bar.
The LCD display is equipped with a light so that data may be viewed in the dark. This light
goes out when the LRF-04 is disconnected from the mains and works by battery.
13/04/02 Session
01:59:19 (night)
-15
nnnnnn

4.2 Consulting data stored by the LRF-04

The programming and all the data stored by the LRF-04 may be consulted by using the
numerical keyboard and the LCD display as follows:
13/04/02
01:59:19
80.5 -60
SUPPLY DISCONNECT
13/04/02
01:59:19
0
NON-W ORKING PERIOD
n
30
Session 13/04/02
(night) 01:59:19
70.3 -60
SENSOR INACTIVE
Session
(night)
99.9
n
Session
(night)
- - -