Contemporary Control Systems BASremote Installation Guide - Manual (Page 13)

TD040300-0II
13
Thermistors
The BAS Remote has built-in calibration curves for 10 kΩ Type II or
Type III thermistors. These devices are non-linear with a negative
coefficient of resistance to temperature and provide a nominal resistance
of 10 kΩ at 25°C. Using the web server, configure an input for either
Type II or Type III thermistor. As shown in Figure 11, connect the
two-wire thermistor to points A and B. Polarity is not an issue. If
averaging of temperature is desired, connect multiple thermistors in a
series-parallel combination so that the nominal resistance remains at 10 kΩ
as shown. Make sure that all devices are of the same type. The effective
range of temperature measurement is from +40° to +110°F (+4.4° to
+44°C). An open input results in a fault condition that produces a red
LED indication for that channel.
Figure 11 — Thermistor Connections
Contact Closure
The BAS Remote can sense the make or break of a contact from a relay
or push-button. The contacts being sensed must be absent of any applied
source of energy, and be rated for low-voltage, low-current switching.
The BAS Remote will provide the electrical energy to be sensed. Using
the web server, configure an input for contact closure. As shown in
Figure 12, simply connect the contacts between points A and B. For