Manual
2 
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. 
DO NOT SUBSTITUTE PARTS OR MODIFY THE INSTRUMENT 
Do not install substitute parts or perform any unauthorized modifications to this instrument. Return the instrument 
to B&K Precision for service and repair to ensure that safety features are maintained. 
WARNINGS AND CAUTIONS 
WARNING and CAUTION statements, such as the following examples, denote a hazard and appear throughout this 
manual. Follow all instructions contained in these statements. 
A WARNING statement calls attention to an operating procedure, practice, or condition, which, if not followed 
correctly, could result in injury or death to personnel. 
A CAUTION statement calls attention to an operating procedure, practice, or condition, which, if not followed 
correctly, could result in damage to or destruction of part or all of the product. 
WARNING: 
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. 
WARNING: 
To avoid electrical shock hazard, disconnect power cord before removing covers. Refer servicing to 
qualified personnel. 
CAUTION: 
Before connecting t
he line cord to the AC mains, check the rear panel AC line voltage indicator.  
Applying a line voltage other than the indicated voltage can destroy the AC line fuses. For continued 
fire protection, replace fuses only with those of the specified voltage and current ratings. 
CAUTION: 
This product uses components which can be damaged by electro-
static discharge (ESD). To avoid 
damage, be sure to follow proper procedures for handling, storing and transporting parts and 
subassemblies which contain ESD-sensitive components. 






