Product Description
Product Overview
|
Category |
Details |
|---|---|
|
Manufacturer |
Triconex (Schneider Electric) |
|
Model/Part Number |
3700A |
|
Description |
Analog Input Module designed for Triconex Safety Instrumented Systems with differential DC coupled inputs, supporting 0-5V and 0-10V voltage ranges. |
Key Features
-
32 differential DC coupled input points (3700A)
-
TMR (Triple Modular Redundant) architecture
-
Input voltage ranges: 0-5V, 0-10V (selected via TriStation software)
-
Isolated input points available (3703E model)
-
High accuracy and low common mode rejection
-
Supports 4-20 mA current input with shunt resistance
-
Diagnostic indicators for status and fault monitoring
-
Configurable using TriStation software
Technical Specifications
|
Specification |
Details |
|---|---|
|
Model Number |
3700A (also available: 3700, 3701, 3703E) |
|
Input Type |
Differential DC Coupled (3700/3700A), Isolated (3703E) |
|
Number of Input Points |
32 (3700A), 16 (3703E) |
|
Input Voltage Range |
0-5V, 0-10V (selected via TriStation software) |
|
Input Update Rate |
55 ms (3700/3700A), 50 ms (3703E) |
|
Resolution |
12 bits |
|
Accuracy |
<0.15% of FSR (from 0°C to 60°C) |
|
Input Resistance |
30 MΩ (DC), min. |
|
Power-Off Resistance |
30 KΩ (DC), typical |
|
Common Mode Rejection |
-80 dB (DC-100Hz, typical) |
|
Common Mode Range |
-12V to +12V peak (3700/3700A), +200V peak (3703E) |
|
Leg-to-Leg Isolation |
200 KΩ (3700/3700A), 20 KΩ (3703E) |
|
Normal Mode Rejection @ 60Hz |
-17 dB (3700/3700A), -23 dB (3703E) |
|
Input Overrange Protection |
150 VDC/115 VAC continuous |
|
Current Range |
0-20 mA (250 Ω shunt for 3700/3700A, 500 Ω shunt for 3703E) |
|
Diagnostic Indicators |
PASS, FAULT, ACTIVE |
Physical Characteristics
|
Attribute |
Details |
|---|---|
|
Color Code |
Yellow (3700), Light Yellow (3700A), Mustard Yellow (3703E) |
Module Part Numbers
|
Part Number |
Description |
|---|---|
|
3700 |
AI, 0–5 VDC, differential, 32 points |
|
3700A |
AI, 0–5 VDC, differential, 32 points |
|
3701 |
Non-incendive, 4-20 mA and voltage inputs, 32 points |
|
3703E |
Non-incendive, 4-20 mA, 0-5V, isolated inputs, 16 points |
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