ATT2100 TEMPERATURE TRANSMITTER
Operation Manual M2100-REV-G
16
HART
COMM
ATT2200 connector & HART communication.
3-5. Fail Mode Alarm
AUTROL® Smart Temperature Transmitter automatically and continuously performs self-diagnostic
routines. If the self-diagnostic routines detect a failure, the transmitter drives its output outside of the
normal saturation values. The transmitter will drive its output low(down) or high(up) based on the
position of the failure mode alarm jumper . See Table 3.1 for Output values.
[Table 3-1 Standard Alarm and Saturation Value]
Fail Mode Select Jumper Switch has in LCD Module and Main CPU Module and Jumper Switch Line is
connected circuital. In case of Not LCD Module, we can use CPU Module's Fail Mode Select Jumper
Switch and In case of LCD Module we can use LCD Module's Jumper Switch. In this case, CPU Module is
selected "Down" side. No selected we can select "Down" side.
(Jumper Select Switch is followed in Figure 3-2, 3-3)
Select Fail Mode
Both LCD Module and CPU Module
Only CPU
Module
CPU Module
LCD Module
CPU Module
Fail Down
Down
D D
Fail Up
Down
U
U
Up U
or
D
Level
4~20mA Saturation
4~20mA Alarm
Low/Down 3.9
mA
≤
3.8 mA
High/Up 20.5
mA
≥
21 mA