Preset Test Parameters; Ac-V Freq; Software Agc; Wv Auto Range - QuadTech Sentry Plus Series Instruction Manual

2.11

PRESET Test Parameters

A number of initial parameters or default conditions may be programmed and stored as the
'power-up' conditions. On the Sentry Plus Series instruments, this function is labeled PRESET
and is accessible on the STAND BY display.
The PRESET values are stored with each programmed test. Therefore each memory location
may have different PRESET values. It is important to set the PRESET values prior to storing a
test program.
Table 2-3 lists the Sentry Plus Series PRESET test parameters including parameter range and
initial (default) value.
Parameter

AC-V FREQ.

SOFT. AGC

WV AUTO RANGE

IR AUTO RANGE
GFI
FAIL RESTART
2.11.1 AC-V FREQ.
The AC-V Frequency setting allows the user to select the line frequency for the AC hipot test.
The range of AC-V Freq. is 50 or 60Hz and the instrument default setting is 60Hz.

2.11.2 SOFTWARE AGC

The Software Automatic Gain Control (SOFT AGC) setting allows the option of correcting the
output voltage when ON. This is satisfactory when measuring resistors but under special
circumstances when measuring large capacitive devices it is best to select Software AGC OFF.
The default value is ON.
2.11.3 WV AUTO RANGE
The WV Auto Range setting allows the option of using the full scale current range (ON) or using
the user programmed maximum current limit (OFF) during a withstand voltage (hipot) test. The
low current range (3mA full scale) results in increased measurement resolution. The default
value of WV Auto Range is OFF.
Page 48 of 85
Table 2-3: PRESET Test Parameters
Range Initial
(Default)
Value
50 or 60Hz 60Hz
ON or OFF ON
ON or OFF OFF
ON or OFF ON
ON or OFF ON
ON or OFF OFF
Description
Set frequency for AC Hipot test
Set software automatic gain control function
ON or OFF
Set hipot auto range function ON or OFF
Set resistance auto range function ON or OFF
Set ground fault interrupt to trip at 0.5mA
Fail continue steps
Operation