Manual No. OM5000
Jan X/04 Ver 1.40
56
Use the following procedure to verify that the proper AC LINE FUSE is installed or to install a
replacement fuse:
a.
Unplug the power cord from the power source (if applicable).
b.
Press in and slightly rotate the fuse-holder cap counterclock-wise to release it.
c.
Pull the cap (with the attached fuse inside) out of the fuse holder.
d.
Verify that the fuse is the same type listed on the back of the instrument. Again, the two
types of fuses listed are not directly interchangeable; they require different types of fuse
caps.
e.
Reinstall the fuse (or replacement fuse) in the proper fuse-holder cap.
f.
Replace the fuse holder and cap.
11.4 POWER CORD
- NovaScopes are normally shipped with power cords/plugs specific to the
country of the customer. A wide variety of NovaScope power cords are available and should be
specified by the customer at time of order placement. Information regarding NovaScope power
cords can be obtained by contacting NDT Systems, Inc. in Huntington Beach, CA, USA, or by
contacting one of its local offices, representatives or delerships.
Once the proper AC LINE FUSE (Section 11.3) inspections have been performed, the detachable
AC line power cord can now be attached as follows:
11.4.1 Attachment To NovaScope
- Insert the female connector on the power cord into the
appropriate receptacle on the rear panel of the NovaScope (see Figure 28). The NovaScope has
a three-wire power cord with a three-contact plug for connection to both the power source and
protective ground. The ground contact on the plug connects through the power cord to the
external metal parts of the NovaScope.
11.4.2 Attachment To AC Power Source
- Now, insert the male plug of the power cord into the
proper AC power source receptacle. For electrical shock protection, insert this plug only into a
power source outlet that has a properly grounded protective ground contact (which then grounds
the external metal parts of the NovaScope via the third wire ground wire in the cord).
11.5 INSTRUMENT COOLING
- Maintain adequate airflow to prevent instrument damage from
internally generated heat. Before turning on the power, verify that the spaces around the air-
intake holes on the bottom, sides, top and rear of the cabinet are free of any obstruction to airflow.