10
INTAB Interface-Teknik AB
3.3
Inputs
Transducers and sensors connect to the detachable screw terminals.
Here is an illustration of how the screw terminals are placed.
These are analog channel inputs.
Behind each channel input terminal there is a pair of Dip-
switches.
One (Volt/Current) connects the shunt resistor into the
input circuitry for current measurements (0 - 20mA).
The other (Diff/ Gnd) shorts the negative input to signal
(or reference) ground for single ended measurements.
This terminal (Gnd) is logger signal ground. All signals
must in some way be referenced to this point.
"+5V" is an auxiliary voltage for the Trig input (T-in).
"T-in" is a trigger input to start or stop recordings.
"G" is the signal return (ground) for trig-signals.
"T-out" is an output reflecting trig status.
"V-Out" is an auxiliary voltage for sensors or x-ducers.
Its voltage is adjustable between 2V and 10V by a
potentiometer.
These terminals are found under the lid of the logger. They are detachable.
Use the 16-hole bracket as strain-relief for transducer cables. You can use a
tie-wrap or simply thread the wire trough two holes.
NOTE!
These terminals are accessible also in those loggers that are equipped with an
optional jack panel. The jack panel must be regarded as just an extension box
and does NOT make familiarisation with the terminal area unnecessary.
The user still has to determine how the dip-switches are to be programmed.
