Limit - QuadTech 1865 Instruction Manual

2.6.2.8 Limit

Setup
Figure 2-15: Limit Value (Resistance or Current)
Allows entry of a single measurement limit in scientific units (up to 4 digits with decimal
and exponent) for resistance or current depending on the results parameter selected. The
exponent must be 3 through 14 for resistance or -3 through -13 for current. This limit
determines the status of the Pass/Fail indicator and Pass/Fail display, when enabled.
When the 1865 instrument is in the resistance mode the limit is a minimum value i.e. any
value above the limit will result in a Pass, whereas a value below the limit will result in a
Fail. The opposite is true when the unit is in the current mode, the limit is a maximum
value, any value below the limit will result in a Pass and a value above the limit will
result in a Fail.
If the display parameter on the I/O Menu is selected as resistance the value entered will
be an R limit, if the display is selected as current the value entered will be an I limit. The
1865's processor will check for consistency between the parameter display selected and
limit entered.
An example of the sequence for entering 1MΩ as a limit would be:
Press [ENTER]
Press [1]
Press [e] select key
Press [6](exponent multiplier)
Press [ENTER]
Operation
I/O Utilities
Voltage = 1000
Charge Time =
10
Dwell Time = 10
Measure Time = 10
=
Discharge Time 10
Mode Auto Manual
Range > >
Limit
= 1 e + 006
Stop on Pass = 0
#
to Average = 0
In the case where I (current) is selected rather
than R (resistance), the exponent would be
entered as a negative number.
or
e
Press [ENTER]
Press [1]
Press [0] (zero), three times
Press [e] select key
Press [3]
Press [ENTER]
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