72 Input/Output Modules
Trident Planning and Installation Guide
Model 3481 Analog Output Module Specifications
Feature Specification
Points 4, commoned-return, DC-coupled
Output current range 4–20 mA output, controlled
0–22 mA over-range
0 mA output capability (step function <2 mA)
Output accuracy <0.25% (in range of 4–20 mA) of FSR (0–22
mA), from 0° C to 70° C (32° F to 158° F)
Type TMR
Resolution 12 bits
Diagnostic Forced-switch diagnostic (FSD)
External loop power
(reverse voltage-protected)
32 V DC, maximum
24 V DC, nominal
Output loop power requirements
for specified load
300 Ω @ >16 V DC (1 A minimum)
500 Ω @ >20 V DC (1 A minimum)
700 Ω @ >24 V DC (1 A minimum)
800 Ω @ >28 V DC (1 A minimum)
Over-range protection 36 V DC, continuous
0 V DC, continuous
Switch time on leg failure 1 ms, typical
3 ms, maximum
Functional-to-protective-earth
isolation
500 V DC, minimum
Functional-to-functional-earth (logic)
isolation
800 V DC, minimum
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