Appendix A: Monitor Specifications
Electrical Specifications
PHM/PM User Guide
A -3
Electrical Specifications
The monitor’s electrical specifications are shown in the table below.
The monitor’s power supply automatically detects the input voltage level
and adjusts accordingly. However, always use reliable sources of power
and isolate all communication cables from AC power lines to enhance noise
immunity.
Important
If possible, position the monitor away from machinery that
produces intense electrical noise (arc welders, etc.). Otherwise, isolate the
input power to the monitor from the equipment generating electrical noise.
Testing Specifications
The monitor conforms to the emission standards for electronic equipment
EN61000-6-2 (2001) and EN55011 (A2:2002), shown below.
Table A-4: Electrical Specifications
Category
Specifications
Input voltage
24 VDC @ 2A max
Power requirements
48 Watts maximum
Fuse rating
4A (very fast-acting type)
Table A-5: European Community Immunity and Emission Standards
Test
Specification
ESD immunity
EN61000-4-2
RF immunity
EN61000-4-3
Electrical fast transient/burst
EN61000-4-4
Surge immunity
EN61000-4-5
RF common mode immunity
EN61000-4-6
Power frequency magnetic field immunity
EN61000-4-8
Voltage dip and interrupt immunity
EN61000-4-11
Conducted & radiated emissions
EN55011
