QLS Quad Output
4-20 mA Current Loop
Splitter / Retransmitter
With common mode isolation
between input & outputs
LAUREL
Electronics Inc.
3183-G Airway Ave, Costa Mesa, CA, 92626, USA Tel: (714) 434-6131 Fax: (714) 434-3766 Website: www.laurels.com
Page 1: ...4 20 mA Current Loop Splitter Retransmitter With common mode isolation between input outputs LAUREL Electronics Inc 3183 G Airway Ave Costa Mesa CA 92626 USA Tel 714 434 6131 Fax 714 434 3766 Website...
Page 2: ...loop loose their 4 20 mA signal The transmitter voltage compliance limit may be exceeded since the voltage drops across loads in series are additive Also the 4 20 mA signal to each load device cannot...
Page 3: ...48 Vdc power connector is colored Black This unit has no power switch It will be in operation as soon as power is applied To avoid dangers of electrocution and or short circuit do not attempt to open...
Page 4: ...adjacent to the signal input connector on the circuit board The factory default input setting is 4 20 mA To change jumpers remove power then open the case by removing the screws at the four corners o...
Page 5: ...y tied to signal ground SG which can be floating or be connected to earth ground Grounded loads Any output load R can be connected to a local loop ground LG instead of current return The loop grounds...
Page 6: ...marked Z for zero and S for span on the front panel The unit is factory jumpered and calibrated so that 4 20 mA in produces 4 20 mA out on all output channels To set or calibrate an output channel app...
Page 7: ...error at 23 C Span Tempco 10 ppm C 0 16 A C typical 25 ppm C 0 4 A C max AC Rejection 90 dB from DC to 60 Hz Response Speed 2 ms risetime 7 ms settling time to 0 1 of final value Current Test Point 10...
Page 8: ...hall not apply to defects resulting from 1 Improper or inadequate maintenance by Buyer 2 Unauthorized modification or misuse 3 Operation outside the environmental specifications of the product 4 Misha...
