Keithley 2000, Руководство пользователя, Страница: 74 / 280

Limit operations
Limit operations set and control the values that determine the HI / IN / LO status of subse-
quent measurements. Limits can be applied to all measurement functions except continuity. The
limit test is performed after mX+b and percent math operations. Unit prefixes are applied before
the limit test, for example:
• Low limit = -1.0, High limit = 1.0
A 150mV reading equals 0.15V (IN).
• Low limit = -1.0, High limit = 1.0
A 0.6k
Ω
reading equals 600
Ω
(HI).
You can configure the multimeter to beep or not when readings are inside or outside of the
limit range.
Setting limit values
Use the following steps to enter high and low limit values:
1. Press the SHIFT-LIMITS keys to view the present HI limit value:
HI:+1.000000 ^
This value represents the absolute value of that function.
2. Use the , ,
▲
, and
▼
keys to enter the desired value. Move the cursor to the right-
most position and use the
▲
and
▼
keys to move the decimal point.
3. Press ENTER to view the present LO limit value:
LO:-1.000000 ^
This value represents the absolute value of that function.
4. Enter the desired value for the low limit. Pressing ENTER returns to the normal display.
3-20 Measurement Options