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Thermalert
®
4.0 Series
Users Manual, Rev. 2.4, Jul 2021
48
Figure 5-14: Wiring Analog Out as Voltage Output
5.7.4.3 TC Output
The output can be configured as thermocouple output type J or K. For a TC output, you must install a dedicated
compensation cable. The output impedance is 50 Ω.
5.7.5 RS485 Communication
For detailed information on the RS485 communication see section 7
5.8 Model 12-Wire
5.8.1 Back Panel
Figure 5-15: DIN Connector Pin Layout
(pin side)
Table 5-6: Pin Assignment for DIN Connector
Pin
Description
A
RS485-A
B
RS485-B
C
FTC1 (emissivity setting)
D
FTC2 (background temperature compensation)
E
Shield
F
Trigger– with GND
G
Relay contact (alarm)
H
Relay contact (alarm)
J
+ Analog out (positive)
K
AGND (analog ground)
L
GND (digital ground)
M
+ VDC power supply
5.8.2 RS485 Communication
For detailed information on the RS485 communication, see section 7
V
+
V
DC
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