Instruction Manual

Pulsar Plus Controller Family
Issue 7 December 2011 94
J2
3-position connector connects the VT-Probe to the 1-Wire interface through cable 848719795. It may also
connect directly to the ES771A with (CC848791517, 2.5’) or (848719829, 10’) or other VT-Probes in daisy
chain fashion using either the (848719803, 5’) or the (848719811, 10’) cable.
J1
2-position connector serves to connect the VT-Probe to J2 on other VT-Probes in a daisy-chain fashion
described above.
Application of QS873 VT Probes
QS873 VT Probes can be used with or without mid-string voltage monitoring. Only one probe is required to
allow the battery slope thermal compensation function to be utilized. Additional probes for individual
battery or multiple string monitoring can be added as desired. The highest temperature measured from all
the probes is utilized by the controller. Although many systems come with the probes factory installed,
probes can be added or replaced in the field. The following figure depicts monitoring all batteries in a single
string without the use mid-string voltage monitors. Actual cables and connectivity may depend on true
system connect
Figure 13: VT-Probe Connections To Infinity NE
Following are basic steps when installing the temperature probes for Thermal Compensation without
Voltage Monitoring.
VT-Probe Connect to Controller
Step Action
1 The QS873A weatherized VT-Probe is provided with 2-pin and 3-pin receptacles and a 1/4-inch
ring terminal. Insert the RJ-45 end of the 848719795 wire set into the P5- SYS AUX PORT on the
controller
2
Using voltage monitoring now or in the future?
No - Cut the brown voltage sense wire on the 848719795 at the 3-pin connector.
Yes - Insulate the end of the wire and secure it in the system for future use.