User manual
Safety Summary 
The following safety precautions apply to both operating and maintenance personnel 
and must be observed during all phases of operation, service, and repair of this 
instrument. Before applying power, follow the installation instructions and become 
familiar with the operating instructions for this instrument. 
Failure to comply with these precautions or with specific warnings elsewhere in this 
manual violates safety standards of design, manufacture, and intended use of the 
instrument. B&K Precision assumes no liability for a customer’s failure to comply 
with these requirements. This is a Safety Class I instrument. 
GROUND THE INSTRUMENT 
To minimize shock hazard, the instrument chassis and cabinet must be 
connected to an electrical ground. This instrument is grounded through the 
ground conductor of the supplied, three-conductor ac power cable. The 
power cable must be plugged into an approved three-conductor electrical 
outlet. Do not alter the ground connection. Without the protective ground 
connection, all accessible conductive parts (including control knobs) can 
render an electric shock. The power jack and mating plug of the power cable 
meet IEC safety standards. 
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE 
Do not operate the instrument in the presence of flammable gases or fumes. 
Operation of any electrical instrument in such an environment constitutes a 
definite safety hazard. 
KEEP AWAY FROM LIVE CIRCUITS 
Instrument covers must not be removed by operating personnel. Component 
replacement and internal adjustments must be made by qualified maintenance 
personnel. Disconnect the power cord before removing the instrument 
covers and replacing components. Under certain conditions, even with the 
power cable removed, dangerous voltages may exist. To avoid injuries, 
always disconnect power and discharge circuits before touching them. 
DO NOT SERVICE OR ADJUST ALONE 
Do not attempt any internal service or adjustment unless another person, 
capable of rendering first aid and resuscitation, is present. 










