Product details
Intrinsic safety & signal conditioning
Smart current driver - 20mm
This isolated barrier is used for intrinsic safety applications. It drives SMART I/P converters, electrical valves, and positioners in hazardous areas.
Digital signals are superimposed on the analog values at the field or control side and are transferred bi-directionally.
Current transferred across the DC/DC converter is repeated at terminals 1, 2 and 4, 5.
An open and shorted field circuit presents a high input impedance to the control side to allow line fault detection by control system.
If the loop resistance for the digital communication is too low, an internal resistor of 250Ω between terminals 8, 9 and 11, 12 is available, which may be used as the HART communication resistor.
Sockets for the connection of a HART communicator are integrated into the terminals of the device.
A unique collective error messaging feature is available when used with the Power Rail system.
Technical specification
|
| Supply voltage: | 10-35V d.c.
|
| Power consumption: | 1.8W at 20mA
|
| Input/Output: | Analogue output
|
| No. of Channels: | 2
|
Output:
| Current: | 4-20mA
| | Load: | 100-700Ω
| | Voltage: | ≥14V at 20mA
| | Input: |
| | Voltage drop: | Approx. 4V or internal resistance 200Ω at 20mA
| | Input resistance: | >100kΩ when wiring resistance in the field
| | <50Ω or >16V (equivalent to 800Ω at 20mA
| | Current: | 4-20mA limited to approx. 25mA
| | (or the output current if less)
| | Ambient temperature: | -20 to +60°C
| | Protection rating: | IP20
| | Mounting: | 35mm DIN rail or panel mount
| | Dimensions: | w20 x h124 x d115mm | |
Features:
3 port galvanic isolation
2-channel isolated barrier
24V d.c. supply (power rail)
Current output up to 700Ω load
HART I/P and valve positioner
Line fault detection (LFD)
Accuracy 0.05%
Terminal blocks with test sockets
Up to SIL2 acc. to IEC 61508
DIN rail/power rail solutions
Removable terminals reduce maintenance time
Fault detection and local indication
