
Doc# E149701 7 - 7
7: Using the I/O Option Cards
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
7.5: 20mA Output Card (20mAOS)
The 20mA card transmits a standardized 0-20 mA signal. This signal is linearly pro-
portional to real-time quantities measured by the Shark® 200 meter. The current
sources need to be loop powered. The outputs are electrically isolated from the main
unit.
7.5.1: Specifications
The technical specifications at 25° C at 500 load are as follows:
Number of outputs: 4 single ended
Power consumption: 1W internal
Signal output range: (0 to 24)mA
Max. load impedance: 850 @ 24VDC
Hardware resolution: 12 bits
Effective resolution: 14 bits with 2.5kHz PWM
Update rate per channel: 100ms
Output accuracy: ± 0.1% of output range (24mA)
Load regulation: ± 0.03% of output range (24mA) load step of 200
@ 20mA
Temperature coefficient ± 300n A/°C
Isolation: AC 2500V system to outputs
Maximum loop voltage: 28Vdc max.
Internal voltage drop: 3.4VDC @ 24mA
Reset/Default output value: 12mA
:
Comentarios a estos manuales