Facility Explorer FX15 - Connecting Passive Resistive Sensors

FX15 Controller Technical Bulletin
33
Connecting Passive Resistive Sensors
The FX15 controller analog inputs accept linear resistive signals as the
Resistive 2k ohm. The Analog Input software can also linearize signals
provided by the most common sensors as Ni1000, A99, Pt1000, and
NTC 2k2.
The inputs must be configured to accept A99 resistive signals by the
application software in the FX15 controller. The AI Jumpers must be
opened to accept resistance input (Factory default setting). Figure 33
shows an A99 wiring diagram. Connect the resistive sensors in the same
way.
1 2 3
AGND
AI1
EXT V
4 5
AGND
AI2
6 7
AGND
AI3
8
EXT V
FX16
A99BB
Resistive Temperature Sensor
Figure 33: A99 Resistive Sensor Connection Diagram
IMPORTANT: The two resistive probe leads are the same, in that they have
no polarity; therefore, it is not necessary to respect any specific order when
connecting to the terminal block.
FX15