IET Labs, Inc. RLC Digibridge 1693, User And Service Manual, Page: 23 / 171

xxi
1693 RLC Digibridge
Abbreviated Specifications
The following programmable functions are available:
Parameter Range Default Sample setting adjustment Cancel View Current Setting
Test frequency
12 Hz to 200
kHz
1 kHz Programming 400 Hz:
[FUNCTION] [.] [4] [=] [SHIFT]
[FREQUENCY]
NA [SHIFT] [FRE-
QUENCY]
Test voltage
5 mV to
1.275 V
1 V Programming 15 mV:
[FUNCTION] [.] [0] [1] [5] [=]
[SHIFT] [VOLTAGE]
NA [SHIFT] [VOLTAGE]
Averaging
1 to 256 1 Programming 25 measurements:
[FUNCTION] [2] [5] [=] [SHIFT]
[AVERAGE]
[FUNCTION] [1] [=] [SHIFT]
[AVERAGE]
[SHIFT] [AVERAGE]
Delay
0 to 99,999 ms 0 Programming a delay of 200 ms:
[FUNCTION] [2] [0] [0] [=] [SHIFT]
[DELAY]
[FUNCTION] [0] [=] [SHIFT]
[DELAY]
[SHIFT] [DELAY]
Internal Bias 2 V OFF [SHIFT] [INT BIAS] [SHIFT] [INT BIAS] again NA
D and Q in PPM NA OFF [SHIFT] [DQ in PPM] [SHIFT] [DQ in PPM] again NA
Hold constant
voltage
NA OFF [SHIFT] [CONST V] [SHIFT] [CONST V] again NA
Hold constant
range
NA OFF Select the desired range then
[SHIFT] [HOLD RNG]
[SHIFT] [HOLD RNG] again NA
5. Setting limits for GO/NO GO testing and sorting into bins
a. Make sure the appropriate VALUE is selected by pressing
[DISPLAY]
key as necessary.
b. Make sure to select ENTER by pressing the [FUNCTION] key.
c. Select the desired range and multipliers.
d. Select bins and limits as follows:
Option Sample setting Sample setting adjustment Closing the bin
QDRXBΘ limits (always
bin 0)
Limit of 85 [8] [5] [=] [SHIFT] [BIN NO] [0] [0] For D,R(series),X,B,Q/R: [9] [9] [9] [9] [=] [SHIFT] [BIN NO] [0] [0]
For R(parallel),Q/L: [0] [=] [SHIFT] [BIN NO] [0] [0]
Symmetrical percentage
tolerances for RLCGZY
(nested bins)
Nominal value of 123.4
with ±0.2% limits in bin 1 [1] [2] [3] [.] [4] [=] [SHIFT] [NOM VAL] ,
[.] [2] [%] [=] [SHIFT] [BIN NO] [0] [1] ,
enter tolerances for more bins if necessary
[0] [=] [SHIFT] [BIN NO] [0] [1]
Multiple tolerances (bucket
sort)*
Nominal value of
14.75 Ω
with ±0.5 Ω limits in bin 2
[1] [4] [.] [7] [5] [=] [SHIFT] [NOM VAL] ,
[.] [5] [=] [SHIFT] [BIN NO] [0] [2] ,
enter tolerances for more bins if necessary
[0] [=] [SHIFT] [BIN NO] [0] [2]
Asymmetrical tolerances
+20%/-80% limits for
bin 6
[2] [0] [%] [-] [8] [0] [%] [=] [SHIFT] [BIN
NO] [0] [6]
(upper limit should always come first)
[0] [=] [SHIFT] [BIN NO] [0] [6]
*Overlapping values will always get assigned into the lower-numbered bin
e. Press [FUNCTION] key to select MEASURE mode.
f. Press [DISPLAY] key as needed to select the desired mode. (See Section 4 above.)
g. Connect component to be tested to the test terminals and press [START] .
If the DUT falls into the limits of one of the active bins, the bin number will be displayed and the GO LED will be lit.
If the DUT falls outside the limits of the active bins, display with show bin 14 and the NO GO LED will be lit.
4. Taking measurements
a. Select measurement conditions as follows:
• [FUNCTION] key selects MEASURE mode
• [DISPLAY] key selects VALUE , ∆% , or BIN NO
• [MEASURE RATE] key selects SLOW , MEDIUM , or FAST
• [MEASURE MODE] key selects CONTINUOUS or TRIGGERED
• [EQUIVALENT CIRCUIT] key selects SERIES or PARALLEL
b. Select impedance to be measured as follows
• [R/Q] key to show Resistance in the primary display and Quality
factor in the secondary display
• [L/Q] key to show Inductance in the primary display and Quality
factor in the secondary display
• [C/D] key to show Capacitance in the primary display and Dis-
sipation in the secondary display
• [C/R] key to show Capacitance in the primary display and Resis-
tance in the secondary display
• To select other parameters, press and hold [SHIFT] key and
select as appropriate
c. Connect component to be tested to the test terminals as
appropriate.
d. If in the
TRIGGERED
mode, press
[START]
.
Keep hands and objects at least 10 cm (4 in) from test
fixture.
If NEG RLC lights, the selected parameter is not ap-
propriate for the DUT and another parameter should be
selected. For example, if the Digirbdige is set to measure
capacitance, and NEG RLC is lit, that means that the
DUT is inductive.
To view relative measurements, the nominal value and the bin
limits must be first programmed. (See section 5 below.) Once
the values have been programmed, select one of the following
options by pressing the [DISPLAY] key:
• % difference from the nominal value: ∆% must be lit
• Difference from nominal in original units (pF, mH, etc.): VALUE
and ∆% must both be lit
• Assigned bin number: BIN NO must be lit