IET Labs, Inc. RLC Digibridge 1693, User And Service Manual, Page: 95 / 171

71
1693 RLC Digibridge
Operation
3.10 Special Functions
Most of the special functions are described in more
detail in other parts of the manual. Refer to Table 3-12
for a brief summary of the special functions and how
to operate the [SPECIAL] key. Programming of spe-
cial functions can be done only in ENTER function.
Purpose Specific Selection Keystrokes Re Para
1. Setting the
Range
Autorange (normal)
Hold range 1
Hold range 2
Hold range 3
Hold range 4 [0]= [SHIFT][SPECIAL][1]
[1]= [SHIFT][SPECIAL][1]
[2]= [SHIFT][SPECIAL][1]
[3]= [SHIFT][SPECIAL][1]
[4]= [SHIFT][SPECIAL][1] 3.5.6
2. Output via IEEE-
488 Bus
No Output (max meas speed)
Bin numbers only
QDR results only
QDR and bin numbers
RLC results only
RLS and bin numbers
RLC and QDR results
RLS, QDR and bin numbers = full data
No data on PASS, Full data on FAIL
BIN No. on PASS, full data on FAIL [0]= [SHIFT][SPECIAL][2]
[1]= [SHIFT][SPECIAL][2]
[2]= [SHIFT][SPECIAL][2]
[3]= [SHIFT][SPECIAL][2]
[4]= [SHIFT][SPECIAL][2]
[5]= [SHIFT][SPECIAL][2]
[6]= [SHIFT][SPECIAL][2]
[7]= [SHIFT][SPECIAL][2]
[8]= [SHIFT][SPECIAL][2]
[9]= [SHIFT][SPECIAL][2] 3.5.9
3. Special
Measurement
Routines
Normal
Signal reversing (useful when test frequency coincides with power frequency)
Shorting in measurement circuit (useful when measuring biased capacitors)
Both reversing and shorting
Quick acquisition meas routine (MED and FAST only; useful at low frequencies)
Quick acquisition and shorting (MED and FAST only; useful at low frequencies) [0]= [SHIFT][SPECIAL][3]
[1]= [SHIFT][SPECIAL][3]
[2]= [SHIFT][SPECIAL][3]
[3]= [SHIFT][SPECIAL][3]
[4]= [SHIFT][SPECIAL][3]
[5]= [SHIFT][SPECIAL][3] 3.6.8
4. Delay Milliseconds of delay after start before data is qcquired, “d”=msec. [d]= [SHIFT][SPECIAL][4] 3.5.3
5. Integration Time
Factor
Multiplies integration time by factor f (0.25 to 6), normally 1. Reducing f decreases
accuracy and reduced measurement time. Increasing f does the converse.
[f]= [SHIFT][SPECIAL][5] 3.5.5
6. Ratio Displays
(RLC only)
Normal displays
Ratio Displayed:
nominal/meas value
meas value/nominal [0]= [SHIFT][SPECIAL][6]
[1]= [SHIFT][SPECIAL][6]
[2]= [SHIFT][SPECIAL][6]
3.3.6
7. Man/auto
Parameter Section
Reset
Manual selection of parameter
Automatic selection of parameter (R/Q, L/Q, or C/D); default
Reset [0]= [SHIFT][SPECIAL][7]
[1]= [SHIFT][SPECIAL][7]
[2]= [SHIFT][SPECIAL][7] 3.3.1
8. Median Result
Normal, no median found
Display is median of 3 meas [0]= [SHIFT][SPECIAL][8]
[1]= [SHIFT][SPECIAL][8] 3.6.4
9. Version Displays the software version [SHIFT][SPECIAL][9]
10. Frequency
Correction
Displays the correction “c” [SHIFT][SPECIAL][0] 3.4.1
11. IEEE Address Display the LISTEN address of the IEEE interface [SHIFT][SPECIAL][.]
Table 3-16: Special Functions