B&K 1651A Manual Do Utilizador

 

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a. If the negative polarity of the equipment or circuit 

being powered is also the chassis or common, it may 
be grounded to earth by strapping the black (-) 
terminal to the green (GND) terminal as shown in Fig. 
9A. 

b. Similarly, the positive polarity can be grounded by 

strapping the red (+) terminal to the green (GN D) 
terminal as shown in Fig. 9B. 

c. If an earth ground reference is not required, the 

configuration of Fig. 9C may be used. The scheme in 
Fig. 9C should also be used where it is not known 
whether the chassis is common with either the positive 
or negative polarity. 

d. If the chassis or common of the equipment being 

powered is separate from both the positive and 
negative polarity power inputs, use the connection 
shown in Fig. 9D. 

9.  Observe proper polarity. If the circuit being powered is not 

equipped with reverse polarity protection, damage to the 
circuit can result from reverse polarity. Use color coded 
hook-up leads, for convenience in identifying polarity, red 
for (+) and black for (-). 

10.  Make sure that the hook-up leads offer sufficient current 

capability and low resistance between the power supply 
and the circuits being powered.  The hook-up leads 
supplied with the power supply are rated for 4 amps. 

 
FIXED 5 V POWER SUPPLY OPERATION 
  The FIXED 5 V supply provides a 4 amp current capacity.  
The supply is ideal for use with TTL circuits.

 

1. Turn off the power supply and the equipment to be powered 

during hook-up. 

2. Connect the positive polarity of the device being powered to 

the red (+) terminal of the FIXED 5 V supply. 

3. Connect the negative polarity of the device being powered 

to the black (-) terminal of the FIXED 5 V supply. 

4. Fig.  10 illustrates the grounding possibilities of the FIXED 

5 V supply. 

a. If the negative polarity of the equipment or circuit 

being powered is also the chassis or common, it may be 
grounded to earth by connecting the black (-) terminal 
to the green (GND) terminal as shown in Fig. 10A. 

b. Similarly, the positive polarity can be grounded by 

connecting a jumper between the red (+) terminal and 
either green (GND) terminal as shown in Fig. 10B. 

c. If an earth ground reference is not required, the 

configuration of Fig. 10C may be used. The scheme in 
Fig. 10C should also be used where it is not known 
whether the chassis is common with either the 
positive or negative polarity. 

d. If the chassis or common of the equipment being 

powered is separate from both the positive and 
negative polarity power inputs, use the connection 
shown in Fig. 10D. 

5. Observe proper polarity. If the circuit being powered is not 

equipped with reverse polarity protection, damage to the 
circuit can result from reverse polarity. Use color coded 
hook-up leads, such as the sets supplied with the power 
supply,  for convenience in identifying polarity, red for (+) 
and black for (-).