TE-6800 Series Temperature Sensors Installation Instructions
3
Keep wires as short as possible to minimize sensor
error. Each 250 ft (76 m) run of 18 AWG wire or 50 ft
(15 m) of 24 AWG wire creates 1F° (0.56C°) error for a
nickel sensor or 1.5F° (0.83C°) error for a platinum
sensor due to wire resistance. To maintain less than
1F° (0.56C°) error for nickel or 1.5F° (0.83C°) error for
platinum, hold the total resistance of all sensor wiring
below 3 ohms. When wiring the TE-6800, do not run
low voltage wiring in the same conduit as line voltage
wiring or other conductors supplying highly inductive
loads.
Internal Wiring Diagrams
Internal wiring diagrams are shown in Figure 2 and
Figure 3. Terminal block designations are shown in
Figure 4. The terminals are identified in Table 1. See
the
explanation of the Light-Emitting Diode (LED) and
Push Button (PB) modes. Make connections pairing
the following wires:
•
sensor (Terminal 1 and Terminal 2)
•
setpoint (Terminal 3 and Terminal 4)
•
Zone Bus and Common (COM)
(Terminals 6 and 7)
Shielding is not required. If used, follow the system
controller’s recommendations for grounding the shield.
Note:
The Manual Override PB does not respond
when the DIP switch positions are all down (LED mode
NO PB, as shown in Figure 3 and Figure 5).
Figure 1: Modular Jack Pin Number Assignments
Main
Port
1
8
pin # assignment
Figure 2: Terminal Block Wiring Designations (LED ON Mode [Factory Default] and Manual
Override PB Enabled)
RTD
1
Temperature
Sensor
2
Temperature
Sensor
Common
3
Setpoint
Common
4
Setpoint
Setpoint
5
24 VAC/ +15 VDC
1K Ohms
6
Common
7
Zone Bus
Manual
Override
Button
8
LED
LED
(3)
(4)
(7)
(2)
(5)
(6)
(8)
(1)
Internal wiring diagram with DIP switches set as
shown on the right, LED Mode = ON and Manual
Override push button enabled.
ON
term
_blo
ck1
Modular Jack
Pin Numbers: