User`s manual

hold > 2s
A
B
B
B
B
B
B
5s
5s
5s
5s
B
B
wait
5s
A
A
X
Learning
X
X
A A
4.
A
A
BBBB
Switch off, 4 mA, 0 V
Switch on, 20 mA, 10V
Far-end bloking
Averaging
number
Number of
discarded
echoes
Enabling Touch-Magnet
Programming
B
B
a = 1
a = 4
a = 8 a = 16
k = 1
k = 3 k = 5 k = 10
disabled
enabled
Measurement
Completed
A
5.
1.
2.
3.
6.
Learning
Learning
Select
Menu Point
A
A
A
A
5s
BBBB
Figure 12
Procedure of the programming
Invalid echo
A
Measurement
Measurement
accepted
Learning
Figure 13
Indication while learning
To enter programming mode: hold step A for 2 s
To quit programming mode: hold step B
Once in Programming mode, the red LED will start blinking, and the yellow
and green LED s go off.
While in programming mode (with the red LED blinking) every step A will
move the device to the next Menu item. The six different Menu items are
indicated by a combination of the states of the yellow and green LEDs.
About 5 seconds after selecting a Menu item and if there is no step A or B,
then the unit will automatically start to execute the menu item. In this case, the
red LED goes on continuously. In the first four Menu Points learning should be
initiated by step A. Blinking of the green LED indicates measurement during
learning. On getting a valid echo the yellow LED will light up and the relevant
numeric value of the measured distance appears on the output (for instance
with measured distance of 0.4 m the output will be 0.4 mA or 0.4 V!) With
repeated step A a new distance can be learnt and the old one will be
overwritten. Step B will finalise learning and result in return to the Menu item
selection. Another Step B will make the device quit Programming Mode.
Parameters a and k can be programmed using Steps A and B in Menu item
4 and 5
Touch-Magnet programming can be enabled or disabled in Menu item 6 using
step A. Disabling of the Touch-Magnet Programming by the use of the magnet
will be completed after quitting Programming Mode.
During Touch-Magnet Programming the Wire-Contact Programming is
disabled and vice versa.
If the unit is left in Programming Mode for more than 10 seconds, it will quit
automatically. After programming is done connect the PRG wire to the GND.
Loading factory settings
Disconnect the unit's power supply. Before powering on again, connect the
PRG wire to the +Us. After powering on first the green, then the yellow and
then the red LEDs will start blinking one after another. Wait until all three LEDs
stop blinking and disconnect the PRG wire from +Us. The device will now
measure using the default factory settings. Reconnect the PRG wire to the
GND.
In a very noisy environment, before powering on, make sure that the PRG wire
is connected to the GND, otherwise on powering on, the device may load the
default factory settings.
Example: assignment of X
B
Place a target at a distance (X
B
) from the unit to which you want to assign
20 mA or 10 V or to trigger the switch-on. In the distance learning procedure,
X
T
will be disregarded.
Hold the magnet to point A till the red LED begins to blink (we are now in the
first menu item in the Programming Mode). Remove the magnet and hold it to
point A again to step to the second Menu item. The red LED will be blinking,
the yellow one will go off and the green one go on (we have now stepped to
the second menu item). Remove the magnet and wait (approximately 5s) until
the red LED goes on continuously. (ready for learning). Hold the magnet again
to point A (learning started). The green LED starts to blink (representing
measurement) then goes off (measurement completed) and the yellow LED
will light up for a short time (implying valid echo). After the learning process
has been completed the green LED goes off. Then place, remove and place
the magnet to point B again to quit the menu item selection and Programming
Mode respectively.
6. MAINTENANCE, REPAIR
The unit does not require maintenance on a regular basis. In some very rare
instances however, the deposited material on the transducer may need to be
cleaned from the echo surface. This must be carried out gently, without
scratching or pressing or hitting the surface of the transducer.
Repairs beyond the warranty period have to be carried out exclusively at the
Manufacturer’s premises. Equipment sent back for repair should be cleaned or
neutralised (disinfected) by the User. Proof of this should be documented in
writing during handover.
7. STORAGE
Ambient temperature: -20...+70 °C
Relative humidity: max. 98%
8. WARRANTY
Nivelco provides warranty for the period of 2 (two) years.
All repairs under warranty are performed in the Manufacturer's premises.
Warranty claims are only valid with upon presentation of both the manual and
the invoice. Cost of dismantling, reinstalling and transportation are borne by
the Customer.
Warranty claims are not valid in the event of damages during transportation,
failures due to abnormal usage, breakage, natural disasters, or incompetent
installation or operation.
urp2634a0600h_02
May. 2007.
Nivelco reserves the right to change technical specifications without notice.