U8/12-1M
Date:
05/03/12
Manual - Appendix
Page A3
b)
Operation and handling of the
U8/12-1M
•
Connect the optical fiber
•
Connect the analog signal cables to transmitter. It is recommended
to choose the cables as short as possible, since the transmitter input
(1MΩ || 10pF) is not matched to your application (avoid
oscillations).
•
Connect the output of the receiver to a suitable high-impedance
voltage measurement device, such as an oscilloscope or multimeter.
The length of the connector cable should not be significantly longer
than 1m, since the upper frequency limit is lowered by the parasitic
capacitive load.
•
Set the voltage measurement device to the expected voltage and
time range, if necessary. If used, take optional included voltage
divider into account, while setting / checking your measurement
device.
•
Plug in power supply of the receiver.
•
Turn on all devices (no order to be recognized). Communication
between transmitter and receiver will be indicated by the Signal
detect LED at the receiver.
•
The
U8/12-1M
system is ready to use about two seconds after
turning on the transmitter.
•
Check info LED if transmission stops suddenly!
If the transmission suddenly stops after a long duration of measurement,
check the
Info
LED of the transmitter (see Figure a.1). If the battery power
falls below 7,2V, the
Info LED
is switched on. The system should be
reloaded soon. Below 5,8V, the system is turned off automatically.
The measurements can be extended by using the optional battery pack
(BP-84) with connector cable or a power supply certified by mk-
messtechnik. The external supply can be connected to the system any time
(parallel). The connection to the internal battery is decoupled with a diode.
Only use the battery pack and connector cables from mk-messtechnik!
Others might lead to a damage of the system!
mk-messtechnik GmbH - Zeppelinstr. 1 - 73274 Notzingen - Tel: +(49) 7021-9566925
Check info LED if
transmission stops
suddenly!
Only use battery
packs and connector
cables provided
from mk-
messtechnik. Other
modules influence
EMS-performance
and might damage
the opto-system!
