Relays
6.2 Trigger inputs
The
trigger inputs
TR8 and TR9 can be driven either via optocouplers by volt-
age levels (4 to 30 V) or via the two keys
F1
and
F2
(configuration, see 6.3.).
When using floating switch contacts the optocouplers must be appropriately
wired with supply U+ and U-
(see diagram).
The trigger function (as standard to start
or stop a measuring operation) can also
be freely configured (see Manual 6.10.9).
6.3 Analog outputs
The relay adapter can also - in various options - be fitted with electrically iso-
lated
analog outputs
offering the following signals.
Option
Output signal
Gain
OA 8000-R2
0.000 to +10.000 V
0.5 mV / digit
or
0.000 to +20.000 mA
1 µA / digit
The output value normally corresponds to the measured value for the selected
measuring point. Or alternatively the analog value can be specified as control
variable via the interface (see Manual 6.10.7). The output signal can be pro-
grammed as standard output 0 to 10 V, 0 to 20 mA, 4 to 20 mA for any partial
measuring ranges (see Manual 6.10.7).
6.4 Connecting peripheral equipment
Peripherals can be connected via the supplied ALMEMO screw connector ac-
cording to the following schematic diagram :
ALMEMO
®
8006-RTA3
5
