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4-Channel Current Output Card for OMB-DAQBOARD-2000 Series

OMB-DBK5   
1 year warranty CE OmegaCare
 
4-Channel Current Output Card for OMB-DAQBOARD-2000 Series
OMB-DBK5:4-Channel Current Output Card for OMB-DAQBOARD-2000 Series
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$569.00  OMB-DBK5
Provides Four Isolated 4 to 20 mA Current Outputs
Compatible With 12 To 45 V Current Loop Supplies
Features Predictable Power-On & Fault States
Provides 12-Bit Resolution

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The OMB-DBK5 current-output card provides OMB-DAQBOARD-2000 Series data acquisition systems with the ability to control four isolated 4 to 20 mA current loops. The OMB-DBK5 acts as a current loop transmitter by modulating current from an external source. The OMB-DBK5 can be programmed with a static value whenever the data acquisition system is not transferring A/D data. As many as sixty-four OMB-DBK5ís can be used in one system, to obtain up to 256 outputs.

Architecture
Each of the OMB-DBK5ís channels contains a 12-bit D/A converter to set the loop current. All channels are optically isolated from the data acquisition system and from one another by 500 V.

Current Loop
The OMB-DBK5 is compatible with regulated or unregulated loop supplies of 12 to 45 Vdc. It also provides compliance with loop resistances of up to 1950 ohms, depending on the source magnitude.

Current Loop-Powered Outputs
Since the isolated outputs of the OMB-DBK5 are loop powered, the card maintains control of the loop current even when the data acquisition system is powered down. When loop power is first applied, the OMB-DBK5ís outputs assume their 4 mA default state. If at any time the data acquisition systemís power is lost or communication with the data acquisition system fails, the OMB-DBK5ís outputs retain their last set values.

Specifications
Connectors:

DB37 male, mates with P1 pinout on OMB-DAQBOARD-2000 Series; screw terminals for signal outputs
Accuracy/Linearity: 0.1% full scale
Resolution: 4 ĶA/LSB, monotonic
Isolation: 500 V
Voltage Range:V loop = 12 to 45 V
Compliance: R loop = (V loop - 6) / 0.020
Example Voltage
@ Vexc = 35 V; MDR* = 1450 Ohms
@ Vexc = 15 V; MDR* = 450 Ohms
* MDR (maximum drive resistance)
Cables: Use OMB-CA-37-x with OMB-DAQBOARD-2000 Series


To Order (Specify Model Number)    
 Part Number   Availability   Price   Description    Qty.
 OMB-DBK5 In Stock   $569.00    4-channel current output card  
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Keywords:4-Channel Current Output Card for OMB-DAQBOARD-2000 Series

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