
PPA55xx Quick User Guide
Page 6
2 Safety
2.1 IMPORTANT SAFETY INSTRUCTIONS
This equipment is designed to comply with BSEN 61010-1 (2001) (Safety
requirements for electrical equipment for measurement, control, and laboratory
use) –observe the following precautions:
Ensure that the supply voltage agrees with the rating of the instrument
printed on the back panel before connecting the mains cord to the supply
This appliance must be earthed. Ensure that the instrument is powered from
a properly grounded supply
The inputs are rated at 1kV rms or dc cat II; 600V rms or dc cat III. Do not
exceed the rated input
Keep the ventilation holes on the underneath and rear free from obstruction
There are no user serviceable parts inside the instrument –do not attempt to
open the instrument, refer service to the manufacturer or his appointed agent
Input Connections:
It is critical that the 4mm inputs and BNC inputs on each PPA input
channel are not connected to any external circuit at the same time.
You MUST only use EITHER the 4mm OR the BNC connection –NOT both,
this applies to both Voltage and Current inputs.
Note: Newtons4th Ltd shall not be liable for any consequential damages,
losses, costs or expenses arising from the use or misuse of this product
however caused