Optimizing Performance; Warm-Up; Display Resolution (Digits) - Keithley Integra 27 Series Quick Start Manual

20 Integra Series

Optimizing performance

Factors that affect measurement performance include instrument warm-up,
display resolution, measurement speed, filter, line cycle synchronization and
autozero.
Figure 8
Measurement performance control
SHIFT
LOCAL
POWER

Warm-up

The instrument can be used as soon as it is turned on. However, to achieve rated
accuracy, it must be allowed to warm up for at least two hours to allow internal
temperatures to stabilize. If the instrument has been exposed to extreme tempera-
tures, allow extra warm up time.

Display resolution (digits)

As shown in
digits) for all functions, except Continuity (which is fixed).
Press the DIGITS key until the desired resolution is displayed. For front panel
operation, the selected display resolution is the same for all functions.
Filter – Press to enable or disable.
Type – Press SHIFT then FILTER (TYPE) to
access filter configuration menu:
Window – 10%, 1%, 0.1%, 0.01%, or none.
Count –1 to 100.
Type – Moving or Repeat
RATIO RATIO
MATH O U T P U T MATH O U T P U T
DCV ACV DCI
DELAY DELAY HOLD HOLD LIMITS LIMITS
EX TRIG EX TRIG TRIG TRIG STORE STORE
SAVE SAVE SETUP SETUP
CONFIG CONFIG
OPEN CLOSE CLOSE
OPEN
STEP STEP
Digits – Press to set
display resolution.
Figure 8, use the DIGITS key to set the display resolution (3H to 6H-
CONT CONT OCOMP OCOMP
CH AVG CH AVG PERIOD SENSOR PERIOD SENSOR
Ω2 Ω4
ACI
FREQ
MONITOR MONITOR
ON/OFF ON/OFF TYPE CH-OFF CH-OFF
FILTER REL
RECALL RECALL
LSYNC
HALT HALT TEST TEST GPIB GPIB
SCAN SCAN DIGITS RATE EXIT
Rate – Press to set measurement
speed (SLO, MED, or FAST).
Lsync – Press SHIFT then RATE
(LSYNC) to access the line
synchronization on/off menu.
Quick Start Guide
TEMP
RANGE
CARD CARD
AUTO
RANGE
RS-232 RS-232
ENTER