95x Series Operating Manual - May 17, 2022
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slow to low speed within 1 minute of application of power. If the fan maintains high speed operation for a long
time, then the airflow may be overly restricted, or the fan filter may be blocked, the user should take corrective
action.
The cooling fan has a removable filter. This is easily removed for cleaning or replacement without disassembling
the 95x, see
The 95x is fully specified for operation in ambient temperatures between 0 and 50C, however best accuracy and
full loading capability is obtained if the ambient temperature is maintained below 30C. For best results, the user
may wish to operate the 95x in a conditioned environment.
MOUNTING POSITION AND ORIENTATION
The 95x may be installed as either a bench top instrument or installed into a standard 19” rack.
The 95x is primarily intended to be used in a horizontal, or close to horizontal position, oriented with the top cover
(with the vent holes) uppermost. There are no known issues with mounting the 95x at any angle or orientation, as
long as it is mounted in a secure and stable fashion taking into consideration its weight and weight distribution.
INSTALLING IN A 19” RACK ENCLOSURE
Often when installing the 95x into a rack enclosure it is desired to remove the feet from the bottom of the 95x.
This is easily achieved by simply removing the screws mounting the feet to the bottom of the unit. The user should
place the removed feet and mounting hardware into a bag for safe keeping should they be needed at a later date
for bench top usage. DO NOT INSERT THE MOUNTING HARDWARE BACK INTO THE BOTTOM OF THE 95x WITHOUT
THE FEET INSTALLED, THIS MAY DAMAGE THE UNIT.
Option RM-
1 provides the rack mount ears required for mounting in a standard 19” rack enclosure.
When installing the 95x into a rack enclosure it is recommended that the unit be supported through its depth. The
use of a tray or angle brackets supporting the bottom edges of the unit is recommended.
LINE POWER
WARNING -
THE 95x IS INTENDED TO BE POWERED FROM A POWER CORD HAVING A PROTECTIVE GROUND WIRE
WHICH MUST BE INSERTED INTO A POWER OUTLET HAVING A PROTECTIVE GROUND TERMINAL. IF THE 95x IS NOT
POWERED FROM A SUITABLE POWER SOURCE THEN THE CHASSIS GROUND TERMINAL LOCATED NEAR THE POWER
ENTRY CONNECTOR ON THE REAR PANEL MUST BE PROTECTIVE GROUNDED.
The user may connect the 95x to any source of line power within the allowable range of voltages and frequencies
(see above) without requiring any adjustment to the 95x.
The 95x line power input is fused with a 5mm x 20mm TT3.15A fuse mounted in the rear panel next to the line
power entry. If the user needs to replace this fuse it must be replaced with an exact equivalent fuse, noting the
time and current ratings. Although the 95x is fused at 3.15Arms, the unit can draw surges of up to 10Apk during
normal operation and up to 100Apk during initial application of power. The user should ensure that the power
cord is rated for at least 5Arms continuous operation.
CONNECTING OPTION AC-30 TO THE 95X
If the 95x has option AC-30 installed, the user must connect the external transformer unit to the 95x in order to be
able to use it.
