Rev: 1.0, 24-Jul-2023 © 2023 Thorlabs Page 1
ERM2xx Series Extinction Ratio Meter Chapter 1 Safety
Chapter 1 Safety
Attention
The safety of any system incorporating the equipment is the responsibility of the assembler of the sys-
tem.
All statements regarding safety of operation and technical data in this instruction manual will only ap-
ply when the unit is operated correctly as it was designed for.
The ERM2xx Series must not be operated in explosion endangered environments!
Do not obstruct the air ventilation slots in the housing!
Do not remove covers!
Do not open the cabinet. There are no user-serviceable parts inside!
This precision device is only serviceable if returned and properly packed into the complete original
packaging including the cardboard inserts. If necessary, ask for replacement packaging.
Refer servicing to qualified personnel!
Changes to this device cannot be made nor may components not supplied by Thorlabs be used without
written consent from Thorlabs.
Attention
Prior to applying power to the ERM2xx Series, make sure that the protective conductor of the 3 con-
ductor mains power cord is correctly connected to the protective earth ground contact of the socket
outlet! Improper grounding can cause electric shock resulting in damage to your health or even death!
Ensure that the corresponding fuse is inserted. If not, please change the mains fuse (see section Repla-
cing the Mains Fuse).
To avoid risk of fire, only the appropriate fuse for the corresponding line voltage must be used.
All modules must only be operated with duly shielded connection cables.
Attention
The following statement applies to the products covered in this manual, unless otherwise specified
herein. The statement for other products will appear in the respective accompanying documentation.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15of the FCC Rules and meets all requirements of the Canadian Interference-Causing
Equipment Standard ICES-003 for digital apparatus. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with the instruc-
tions, may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful interfer-
ence to radio or television reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following measures:
·Reorient or relocate the receiving antenna.
·Increase the separation between the equipment and receiver.
·Connect the equipment into an outlet on a circuit different from that to which the receiver is connec-
ted.
·Consult the dealer or an experienced radio/T.V. technician for help.
