Product Description
General Information
|
Field |
Description |
|---|---|
|
Manufacturer |
Emerson |
|
Model/Part Number |
EP-3468 |
|
Description |
Analog Input, 8 Channels, Current, 16 Bits, 2, 3, or 4 Wire, Channel Diagnostic |
Functional Specifications
|
Category |
Specification |
|---|---|
|
Interface |
RSTi-EP system bus |
|
System Bus Transfer Rate |
48 Mbps |
|
Potential Isolation |
Test voltage: max. 28.8V within one channel, 500V DC field/system |
|
Pollution Severity Level |
2 |
|
Overvoltage Category |
II |
|
Common Mode Voltage |
Against 0V: ±50V, Channel-to-Channel: ±3V |
Input Specifications
|
Category |
Specification |
|---|---|
|
Number of Inputs |
8 |
|
Input Values |
Current (0 to 20 mA, 4 to 20 mA) |
|
Threshold Values |
Underrange (4–20 mA: 3.6 mA), Overrange (0–20 mA: 21.67 mA, 4–20 mA: 21.67 mA) |
|
Resolution |
16 bits |
|
Frequency Suppression |
Options: disabled / 50 Hz / 60 Hz / Average over 16 values (Default: disabled) |
|
Accuracy |
0.1% max. at 25°C (77°F) |
|
Temperature Coefficient |
50 ppm/K max. |
|
Sensor Supply |
Max. 125 mA per channel; channels 0–3 and 4–7 are fused together |
|
Sensor Connection |
2-wire, 3-wire, or 3-wire + Functional Earth (FE) |
|
Conversion Time |
1 ms |
|
Internal Resistance |
Approx. 45 Ω |
|
Reverse Polarity Protection |
Yes |
|
Short-Circuit Proof |
Yes |
|
Response Time of Protection |
< 0.1 s with short-circuit to +24V |
|
Reset Time |
Temperature-dependent (<30 s at 20°C) |
Diagnostics
|
Feature |
Availability |
|---|---|
|
Module Diagnostics |
Yes |
|
Individual Channel Diagnostics |
Yes |
Supply
|
Category |
Specification |
|---|---|
|
Supply Voltage |
20.4V – 28.8V via system bus |
|
Current Consumption (System Path) |
8 mA |
|
Current Consumption (Input Path) |
20 mA + load |
Environmental Specifications
|
Category |
Specification |
|---|---|
|
Operating Temperature |
-20°C to +60°C (-4°F to +140°F) |
|
Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
|
Air Humidity |
5% to 95%, non-condensing (IEC 61131-2) |
Physical Specifications
|
Parameter |
Value |
|---|---|
|
Width |
11.5 mm (0.45 in) |
|
Depth |
76 mm (2.99 in) |
|
Height |
120 mm (4.72 in) |
|
Weight |
90 g (3.17 oz) |