Fluke PM6669 User Manual
Universal Fre que ncy
Counter
PM6669
Operators Manual
CONTENTS Page: 1
CONTENTS
SAFETY...........................................................................2
Introduction ...................................................................2
PRODUCT PRESENT ATI O N................... .. .. .............. .. ..3
General ................. .............. .. .............. .............. ............3
Rear View......................................................................3
Front View .....................................................................4
INSTALLATION...............................................................5
Unpacking.....................................................................5
Volt age-Range Selection.................... .............. .. ..........5
Grounding........... .............. .. .............. .. .............. ............5
Connecting External Reference....................................6
Installing Options ........... .............................................. .6
Calibrating the MTCXO.................................................6
OPERA T ING INSTRUCTIONS.............. .. ........................8
Using the Frequency Counter.......................................8
Battery Unit .......... .. .............. .. .............. .............. .. ......20
Error Codes..................................... .. .. .. .. .. .. .. ..............20
GPIB-INTERF ACE OPERATION.............................. .. ..21
Introductio n....... .............. .............. .............. .............. ..21
What Can I Do Using the Bus?...................................21
Connecting the Controller ...........................................22
Giving the Count er an Addres s............. .. .... .. .... .. .... .. ..22
Checking the Communication.....................................22
Two Ways of Programming................. .. .............. .. .. ....23
Syntax....... .............. .. .............. .............. .............. .. ......23
Selecting Output Separator.........................................24
How to Select Functio n.................... .............. .. ...........24
Selecting Measuring-Time...........................................24
Selecting Triggering...... .... .. .... .. .... .. .. .... .. .... .. .... .. .... .. .. .25
Totalize Start/Stop .......................................................25
Free-Run/Triggered.....................................................25
Service Request............. .. . . ...................... . . .................26
Status Byte........................... .. .............. .............. .. .......26
Output Mode................................................................27
Bus Learn....................................................................30
Programming Data Out...............................................30
What Happens When I Switch to Local?.....................30
Summary of Bus Commands ......................................31
Programming Examples..............................................32
SPECIFICATIONS .........................................................35
Measuring Functions..... ............ ............ ............ ..........35
Definitions................................ ............ ............ ............36
Input specifications......................................................36
General Information.....................................................37
Auxiliary Func ti ons....................... ...............................38
Optional Accessories...................................................38
Ordering Information ............................... .. .............. ...40
APPENDIX 1............. .. .............. .. .............. .. .............. .....41
Checking the Sensitivity of Counters ..........................41
INDEX ............................................................................43
4822 872 20 021
5/12-April-19 95
PM 6669 - OPERATORS MANUAL
Page: 2 SAFETY
SAFETY
Introduction
Read this pa ge carefully before yo u install and use th e
PM 6669 Frequ ency Counter.
This Frequency Counter has been designed and tested in
accordance with IEC publication 1010-1, and CSA 22.2
No.231, and has been supplied in a safe condition. The
user of this instrument must have the required knowledge
of PM 6669. Th is knowledge can be gained by thoro ughly
studying this manual.
CAUTION: Indicates where incorrect operating pro-
cedures can cause damage to, or
destruction of, equipment or other property.
WARNING: Indicates a potential danger that re-
quires correct procedures or practices in
order to prevent personal injury.
Safety Precautions
Use generally-accepted safety procedures, in addition to
the safety precautions stated in this manual, to ensure personal safety and safe operation of the Frequency Counter.
Caution & Warning Statements
You will find spe ci fi c warn ing and caution statemen ts,
where necessary th roughout the manual . Do not carry out
repairs or adjustmen ts to the Frequency Counter with ou t
reading the Service Manual, which con tains the relevant
warnings for such activities.
Symbols
Indicates where the protective ground lead is
connected inside the instrument. Never unscrew
or loosen this screw.
If in doubt about safety
Whenever you suspect that it is unsafe to use the instrument, you must make it inop erative, clearly mark it to prevent its further operation, an d inform the Fluke service
Centre.
E.g.The instrument is likely to be unsafe if it is vis-
ibly damaged.
PM 6669 - OPERATORS MANUAL
PRODUCT PRESENT ATIO N Page: 3
PRODUCT PRESENTATION
General
The PM 6669 is a co mpact, high resol ution, reciproca l Frequency Counter whic h p erf orms man y f un ct io ns. A number of options are avail able i.e. HF-input, GPIB-in te rface,
high stability oscillator, and rechargeable battery for field
use.
A rack-mount kit and a carrying case are also available as
accessories.
F G
IEEE 488 INTERFACE
INCLUDED OPTIONS
PM 9604
PM 9605
PM 9607
PM 9608B
EXT REF INPUT
TALK ONLY
16 8 4 2 1
ADDRESS
Rear View
A) Rear feet.
B) Screws for removing the cover.
C) External-reference-input, BNC connector.
D) Voltage-range selector.
E) Power-inlet socket.
F) GPIB interface-connector (optional).
G) GPIB address-selector ( option).
SUPPORTED
FUNCTIONS:
SH1,AH1
T5,L4
SR1,RL1
DC1,DT1
ON
E2
OFF
VOLTAGE
SELECTOR
Figure 1
A
Rear View.
10MHz 0.5-15Vrms
B C D
E
THERMAL FUSE IN
MAINS TRANSFORMER
B A
PM 6669 - OPERATORS MANUAL
Page: 4 PRODUCT PRESENTATION
H J K L M
MEASURING TIME
SINGLE 0.2s 1s 10s
FREQAFREQBFREQ
ON
STANDBY
N
O
PM 6669
RESET
LOCAL
TOTALIZE A
START/STOP
UNIVERSAL FREQUENCY COUNTER
DISPL
AUTO
HOLD
FREQ
A/Ao
RPMAPERATOT WIDTH
A-Ao
MEAS
FUNCTION
TIME
TRIGGER LEVEL A
DISPL
HOLD
STORE
Ao
BLANK
DIGITS
AA
EXT
REF
TRIGGER
LEVEL A
INPUT A
FILTER<50kHz
SENSITIVITY
MIN
10Hz-160MHz
1M
Ω
30pF
MAX 350Vp
10mVrms
200mVrms
A
INPUT B
OPTION
70MHz - 1.3GHz
50
Ω
MAX 12Vrms
P R S T U V
160MHz/1.3GHz
Figure 2
Front View.
Front View
H) Large LCD-display.
J) Input-A BNC-connector.
K) Sensitivity control with dual-range push-in/pull-out
switch.
L) 50 kHz filter switch (Input-A).
M) Input-B BNC-connector (optional).
N) Power switch.
O) Reset but ton, doubl es as Loca l button if the Fre-
quency Counter is equipped with an GPIB inter-
face. Star ts an d st op s cou ntin g if t he TOT A
function is selected.
P) Measuring-time selector-button. *
R) Fu ncti on-sele ctor bu tton. *
S) Display-hold button. Freezes the display. The but-
ton is also used for storing A
.
0
T) Blank digit s button. B lanks out on e digit for each
depression of the button, from the right to the
left of the display. (No rounding off).
U) Trigg er leve l settin g button.
V) Tilting supp ort.
* The sele cted fun ct ion is i nd icat ed o n the d is play. A
short press on the button moves the cursor one
step to the right. A long press makes the cursor
scroll.
PM 6669 - OPERATORS MANUAL
10MHz 0.5-15Vrms
EXT REF INPU T
VOLTAGE
SELECTOR
PM 9604
INCLUDED OPTIONS
PM 9605
PM 9607
PM 9608B
IEEE 488 INTERFACE
TALK ONLY
ADDRESS
16 8 4 2 1
ON
OFF
SUPPORTED
FUNCTIONS:
SH1,AH1
T5,L4
SR1,RL1
DC1,DT1
E2
THERMAL FUSE IN
MAINS TRANSF O RM ER
INSTALLATION Page: 5
INSTALLATION
Unpacking
If the Frequency Counter is cold, leave it in the cardboard
box until it has reached normal roo m te mp erature.
– Lift the Frequency Counter out of the box.
– Remove the polystyrene supports.
– Unpack the Frequency Counter from the plastic bag.
– Reverse the procedure to pack.
Check List
Has the Frequency Cou nt er be en damaged in transport?
If it has, file a clai m with the carrier immediate ly, and notify
the Fluke sa le s & s ervice organizat ion to make repair or
replacement of the instrument easier .
– Check that the package contains the following items in
addition to th e Frequ ency Coun ter:
– This Operators’ Manual
– A power cable with protective earth conductor
– A Battery unit if ordered *)
– An MTCXO oscillator if ordered *)
– A GPIB interface if ordered *)
– An HF-input if ordered *)
*) Labels on the r ear pane l in dicate whic h op tion s
are fitted in your Frequency Counter.
Voltage-Range Selection
Set the Frequency Counter to the local line voltage before
connecti ng it. As delivered the Freque ncy Counter may be
set to either 115 V or 230 V. The setting is indicated on the
voltage range selector on the rear panel.
Figure 4
If the voltage ra ng e se tting is incorrect, set th e se le ct or in
accordance with the loca l vo ltage
power cable to the line.
Location of Voltage Range Selector.
before connecting the
Figure 3
INCLUDED OPTIONS
PM 9604
PM 9605
PM 9607
Options Labe l on Rear P anel.
PM 9608B
Grounding
The Frequency Counter is connected to ground via a
sealed three-core power cable, which must be plugged
into a socket outlet with a protective ground terminal. No
other grounding is permit ted for this Frequency Counter.
Extension cables must always have a protective ground
conductor.
PM 6669 - OPERATORS MANUAL
Page: 6 INSTALLATION
Removing the Cover
WARNING: Never interrupt the protective ground-
ing intentionally. Any interruption of the
protective ground connection inside or outside the instrument, or disconnection of
the protective ground terminal is likely to
make the instrument dangerous.
WARNING: When you remove the cover you will ex-
Connecting External
Reference
If you wish to use an exte rnal 10 MHz reference frequency
source, connect it via a BNC-cable to the EXT REF INPUT
on the rear panel of the Frequency Counter.
When the Frequency Counter starts measuring, it automatically dete cts the external ref erence and begins to us e it.
The EXT REF indicato r on th e di sp lay is switch ed on.
Loosen the two screws
using a Pozidrive No. 1 screwdriver
pose live parts and accessible terminals
which can be dangerous to life.
Installing Options
Introduction
The options ordered at the same time as the Frequency
Counter are normally factory-installed. Other options can
be fitted when needed.
The options fit inside the Frequency Counter, but not all at
the same time: The HF-i np ut, the high stabilit y-o sc il la tor
and either of the GPIB-i nterface or the Battery-uni t ca n be
installed in one and the same Frequency Counter.
Calibrating the MTCXO
The MTCXO Time-ba se can easil y be recal ib rat ed to an y
10 MHz reference. To maintain the accuracy of the
MTCXO, use a reference with an accuracy of 3*10-8.
The PM 9691 oven-enclosed oscillator used in Fluke
counters vers ion /.5. meet this requ irement, if calibrat ed.
Preparations
If you remove the cover when count er ha s been swit ch ed
on, the temperature of th e MT CXO will rapi dl y drop ab ou t
10°C. Since the MTCXO must have a stable temperature
when calibrated you must wai t an hou r bet ween removing
the cover and calibrating.
If the counte r has bee n switched off more tha n th ree
hours, you can calibreate it directly .
Figure 5
– Make sure that the power cable is disconnected.
WARNING: Although the power switch is in the off
– Loosen the two screws in the rear feet.
– Grip around the front panel and pull the Frequency
Counter out of the cover.
Loosen These Screws to Remove Cover.
position, the line voltage is present on the
printed circuit board.
Calibration Procedure
– Remove the cover from the counter.
– Allow the MTCXO to adapt the new ambient tempera-
ture. (See ’Preparations’.)
– Connect the 10 MHz reference to Input-A.
– Switch ON the coun ter.
– Adjust the sensitivity control so that the counter counts
properly.
– Hold down the CALIB-bu tt on, o n the main prin te d-circ uit
board in the counter, and press the Reset-button.
PM 6669 - OPERATORS MANUAL
INSTALLATION Page: 7
CALIB-button
– Wait about 20 seconds, until the display shows
10.0000000 MHz. Now the oscillator is calibrated.
– Switch OFF the counte r a nd d isconn ect the 10 MHz ref-
erence.
Fit the cove r.
Figure 6
Location of the CALIB-Button.
PM 6669 - OPERATORS MANUAL
Page: 8 OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
Using the Frequency Counter
CONTROL OPERATING THE
CONTROL
ON
STAND-BY
FUNCT ION
FUNCT ION
POWER, a two-position
mechanical push-button.
Pressed = ON,
Released = OFF
A short depression of
the FUNCTION key
moves the cursor in the
lower edge of the
display one step to the
right. If the k ey is hel d
depressed, the cursor
will scr oll t o th e rig ht
until re leas ed. When t he
cursor reaches the
rightmos t po sition it
jumps back to the
leftmost po sition and
continues from there.
Move func tion cur sor to
FREQ A
DISPLAY GPIB-CODE
AUTO
PER
AUTO
PER
AUTO
A
A
TRIGGER LEVEL A
WIDTH
TOT
A
A
TRIGGER LEVEL A
0.
WIDTH
TOT
A
A
TRIGGER LEVEL A
EXT
REF
M
kHz
ums
GATE
EXT
REF
kHz
No control
possible but D
gives the same
settings as
after power-ON.
One code for
each func tion,
- see below:
FREQ A
FREQ
FREQ
DISPLMEASURING TIME
HOLD
10s1s0.2sSINGLE
FREQ
A
A
FREQ
A/A
FREQ
B
A/A
FREQ
FREQ
B
RPM
A
A-A
0
0
FUNCTION
DISPLMEASURING TIME
HOLD
10s1s0.2sSINGLE
FREQ
RPM
0
0
A-A
10s1s0.2sSINGLE
A
FUNCTION
DISPLMEASURING TIME
HOLD
PM 6669 - OPERATORS MANUAL
FREQ
0.
FREQ
FREQ
FREQ
B
A
A/A
RPM
0
0
A-A
A
FUNCTION
PER
TOT
A
A
WIDTH
A
EXT
REF
OPERATING INSTRUCTIONS Page: 9
FUNCTION AND RANGE HINTS AND COMMENTS
Switches the power ON and OFF. When switched on,
the built in microprocessor switches on all segments
of the display then it runs a power-up test, checking
the measuring-logic of the Frequency Counter before
the counter starts working. This test takes about 2
seconds.
If an error is found, an error code will be displayed.
Try switching the Frequency Counter off and on
again. If error code 01 - 03 persists, call Fluke service. Look on the last page in this manual for Phone
No. and addre ss.
Selects one of the nine measuring functions available. The cursor does not stop at FREQ C if no Input-C HF-
WARNING:The power switch operates on the
secondary side of the transformer. The power cable
must be di scon nect ed fr om t he lin e ou tlet s ocke t if i t
is necessar y to compl etely isol ate the Fr equency
Counter from the line.
Error 01 = RAM memory error
Error 02 = Measuring logic error
Error 03 = Internal bus error
Error OF = Overflow in the counting registers
input is installed.
Reciprocal frequency measurement of the signal at Input-A.
Range:
0.1 Hz to 16 MHz (SINGLE measuring-time)
1 Hz to 160 MHz (0.2, 1, and 10 s measuring-time)
If the signal is sine shaped and the input AC coupled,
the minimum input frequency is 20 Hz (at specified
sensitiv ity) .
PM 6669 - OPERATORS MANUAL
Page: 10 OPERATING INSTRUCTIONS
CONTROL OPERATING THE
CONTROL
Move func tion cur sor to
FUNCT ION
FUNCT ION
FUNCT ION
FREQ B
Move func tion cur sor to
FREQ A/A
0
Move func tion cur sor to
FREQ A-A
0
DISPLAY GPIB-CODE
AUTO
TRIGGER LEVEL A
FREQ B
kHz
DISPLMEASURING TIME
HOLD
10s1s0.2sSINGLE
0.
FREQ
A
A/A
A-A
10s1s0.2sSINGLE
A
FUNCTION
DISPLMEASURING TIME
HOLD
A
AUTO
A
TRIGGER LEVEL A
TOT
PER
RPM
0
0
B
WIDTH
A
EXT
REF
Not bus
FREQ
FREQ
FREQ
selectable
0.
FREQ
A
A/A
A-A
10s1s0.2sSINGLE
A
FUNCTION
DISPLMEASURING TIME
HOLD
A
AUTO
A
TRIGGER LEVEL A
TOT
PER
RPM
0
0
B
WIDTH
A
EXT
REF
Not bus
FREQ
FREQ
FREQ
selectable
0.
FREQ
FREQ
FREQ
FREQ
A
A/A
A-A
A
FUNCTION
A
A
TOT
PER
RPM
0
0
B
WIDTH
A
EXT
REF
FUNCT ION
FUNCT ION
FUNCT ION
Move func tion cur sor to
RPM A
Move func tion cur sor to
PER A
Move func tion cur sor to
TOT A
FREQ
FREQ
FREQ
AUTO
TRIGGER LEVEL A
RPM A
DISPLMEASURING TIME
HOLD
10s1s0.2sSINGLE
0.
FREQ
B
A
A/A
RPM
0
0
A-A
10s1s0.2sSINGLE
A
FUNCTION
DISPLMEASURING TIME
HOLD
PER
AUTO
A
TOT
A
TRIGGER LEVEL A
WIDTH
A
EXT
REF
PER A
ms
FREQ
FREQ
0.
FREQ
B
A
A/A
RPM
0
0
A-A
10s1s0.2sSINGLE
A
FUNCTION
DISPLMEASURING TIME
HOLD
PER
AUTO
A
TOT
A
TRIGGER LEVEL A
WIDTH
A
EXT
REF
TOTM A
FREQ
FREQ
0.
FREQ
FREQ
FREQ
B
A
A/A
RPM
0
0
A-A
A
FUNCTION
PER
TOT
A
A
WIDTH
A
EXT
REF
PM 6669 - OPERATORS MANUAL
OPERATING INSTRUCTIONS Page: 11
FUNCTION AND RANGE HINTS AND COMMENTS
Reciprocal frequency measurement of the signal at Input-B.
Range:
70 to 1300 MHz (PM 9608B)
The counter divide s the fre quency o n Input-A by a
constant, A
, that is stor ed in the co unter in th e follow -
0
ing way:
1) Connect a signal with the frequency to be stored
to Input-A .
as A
0
2) Select FREQ A.
3) Depress the DISPL HOLD key and hold it de-
pressed until the DISPL HOLD indicator is switched
off again. Now A
4) Select FREQ A/A
is stored.
0
.
0
5) Connect the frequency to be measured to Input-A.
The counter substr acts a co nstant, A0, from the frequency at Input-A. You can read about how to store
A0 in the description for FREQ A/A0.
The cursor does not stop at FREQ B if no Input-B HFinput is installed.
If you select this function without storing A0,
Frequency A will be displayed.
This function is convenient when an oscillator is to be
tuned to the frequency of a reference oscillator. It is
much easier to adjust until the display shows
1.0000000 than 7.122 3678 .
If you select this function without storing A0,
Frequency A will be displayed.
This functio n can e.g. be us ed in a rad io to displa y
the received frequency; Set the intermediate
frequency as the cons tant A
. Select FREQ A-A0 and
0
measure the frequency of the local oscillator, and the
display wil l show th e recei ved frequ ency.
The frequency on Input-A is multiplied by 60 and displayed as Revolutions Per Minute.
Range:
6 RPM to 720 000 000 RPM.
When you select SINGLE, the Frequency Counter
measures one period, the range is: 100 ns to 200
000 000 s (about 6 years and four months!).
When you select 0.2, 1, and 10 s Measuring-time, the
Frequenc y Counter di vide s the inpu t frequen cy by 10
and measures the average period for the No. of cycles in that time.
Range:
8 ns to 1 s.
The Frequency Counter counts the total number of
pulses fed to Input-A. You start and stop the totalizing
with the TOTALIZE START/STOP key (RESET/LOCAL). If you keep this key depressed for more than
one second, the total sum will be reset.
Range:
0 to 1*1015 pulses
Use SINGLE when the input frequency is low. This
shortens th e measur ing time consid erably s ince on e
cycle is measured instead of 10.
k on the display indicates kilo-pulses (1000) and M in-
dicates Me ga-puls es(1 00 0 000).
The Measuring-time indicator is switched off in TOT
A MAN.
PM 6669 - OPERATORS MANUAL
Page: 12 OPERATING INSTRUCTIONS
CONTROL OPERATING THE
CONTROL
Move func tion cur sor to
FUNCT ION
MEAS
TIME
MEAS
TIME
WIDTH A
MEAS TIME is operated
in the same way as the
func-tions control, see
page 8.
Move the measuringtime cursor to SINGLE
DISPLAY GPIB-CODE
AUTO
TRIGGER LEVEL A
WIDTH A or
PWIDTH A
ms
DISPLMEASURING TIME
HOLD
10s1s0.2sSINGLE
0.
FREQ
FREQ
FREQ
FREQ
A
A/A
A-A
10s1s0.2sSINGLE
A
FUNCTION
DISPLMEASURING TIME
HOLD
A
AUTO
A
TRIGGER LEVEL A
TOT
PER
RPM
0
0
B
WIDTH
A
kHz
EXT
REF
MTIME <num>
where <num>
is the time in
seconds.
Range:
10 ms to 10 s.
0 = Single
MTIME 0
MEAS
TIME
MEAS
TIME
MEAS
TIME
Move the measuringtime cursor to 0.2 s
Move the measuringtime cursor to 1 s
Move the measuring time cursor to 10 s
FREQ
FREQ
FREQ
FREQ
B
A
A
A
FREQ
FREQ
A/A
FREQ
B
A/A
FREQ
B
A/A
RPM
0
0
0
0
A-A
10s1s0.2sSINGLE
FREQ
A-A
10s1s0.2sSINGLE
FREQ
A-A
10s1s0.2sSINGLE
FUNCTION
DISPLMEASURING TIME
HOLD
0
FUNCTION
DISPLMEASURING TIME
HOLD
0
FUNCTION
DISPLMEASURING TIME
HOLD
RPM
RPM
A
A
A
PER
AUTO
PER
AUTO
PER
AUTO
A
A
A
TOT
A
TRIGGER LEVEL A
TOT
A
TRIGGER LEVEL A
TOT
A
TRIGGER LEVEL A
WIDTH
A
WIDTH
A
WIDTH
A
kHz
kHz
kHz
EXT
REF
EXT
REF
EXT
REF
MTIME 0.2
MTIME 1
MTIME 10
FREQ
FREQ
PM 6669 - OPERATORS MANUAL
FREQ
FREQ
B
A
A/A
RPM
0
0
A-A
A
FUNCTION
PER
TOT
A
A
WIDTH
A
EXT
REF
FREQ
FREQ
OPERATING INSTRUCTIONS Page: 13
FUNCTION AND RANGE HINTS AND COMMENTS
The counter measures the positive pulse width of the
signal on Input-A.
Range:
100 ns to 200 000 000 s.
The set Measuring-time controls the time during
which the main gate is opened, allowing pulses to enter the coun ting log ic. A lon ger Measu ring-t ime give s
higher r eso luti on re adou ts wi th m ore d igit s di spla yed.
The time the gate is open is no t exactl y the pre set
Measuring-time, because the Frequency Counter synchronizes the measurement with the input signal in order to measure complete periods. If the period of the
input signal is longer than the set Measuring-time, the
main gate doe s not clos e again unti l the per iod is
completed.
For PER A and WIDTH exactly one period or one
time interval is measured. The minimum result possible is 100 ns.
The display time will be 100 ms.
When set to SINGLE, FREQ A and, RPM A, the
Measurin g-tim e is one c ycle of the in put sign al or
3 ms, whichever is longest. When set to SINGLE and
FREQ B, the Measuring-time is 3 ms.
If you are interested in the negative pulse width
instead; f irst meas ure t he p eriod and mak e a no te of
the result, then measure the pulse width and
substract it from the period reading.
If you wish to do one measurement instead of
repetitive measurements, see DISPL HOLD.
The input frequency is limited to 16 MHz for FREQ A,
PER A, and RPM A.
If external referen ce is used , the EXT RE F indica tor
will not be switched-on until after the first
measurement.
A Frequency-A measurement will result in 6-7 digits
on the displa y.
A Frequency-A measurement will result in 7-8 digits
on the displa y.
A Frequency-A measurement will result in 8-9 digits
on the displa y.
PM 6669 - OPERATORS MANUAL
Page: 14 OPERATING INSTRUCTIONS
CONTROL OPERATING THE
CONTROL
The TRIGGER
TRIGGER
LEVEL A
TRIGGER
LEVEL A
TRIGGER
LEVEL A
LEVEL A control is
operated in the same
way as the functions
control, see page 8.
Move Trigg er Leve l A
cursor to AUTO.
Move Trigg er Leve l A
cursor to
DISPLAY GPIB-CODE
One code for
each trigger
level offset.
See below.
AUTO
TRIGGER LEVEL A
TLO AUT
kHz
DISPLMEASURING TIME
HOLD
10s1s0.2sSINGLE
0.
FREQ
FREQ
FREQ
FREQ
A
A/A
A-A
10s1s0.2sSINGLE
A
FUNCTION
DISPLMEASURING TIME
HOLD
A
AUTO
A
TRIGGER LEVEL A
TOT
PER
RPM
0
0
B
WIDTH
A
kHz
EXT
REF
TLO POS
TRIGGER
LEVEL A
TRIGGER
LEVEL A
BLANK
DIGITS
Move Trigg er Leve l A
cursor to
Move Trigg er Leve l A
cursor to
Each depression of the
BLANK DIGITS key
blanks out on e digit
starting from the right
(Least Sig-nificant Digit).
When all digi ts are
blanked out, the next
depression removes the
blanking.
FREQ
FREQ
FREQ
FREQ
0.
FREQ
B
A
A/A
RPM
0
0
A-A
10s1s0.2sSINGLE
A
FUNCTION
DISPLMEASURING TIME
HOLD
PER
AUTO
A
TOT
A
TRIGGER LEVEL A
WIDTH
A
kHz
EXT
REF
TLO SYM
FREQ
FREQ
0.
FREQ
B
A
A/A
RPM
0
0
A-A
10s1s0.2sSINGLE
A
FUNCTION
DISPLMEASURING TIME
HOLD
PER
AUTO
A
TOT
A
TRIGGER LEVEL A
WIDTH
A
kHz
EXT
REF
TLO NEG
FREQ
FREQ
0.
FREQ
FREQ
FREQ
B
A
A
FREQ
A/A
FREQ
B
A/A
RPM
0
0
0
A-A
10s1s0.2sSINGLE
FREQ
A-A
FUNCTION
DISPLMEASURING TIME
HOLD
0
FUNCTION
RPM
A
A
PER
AUTO
PER
A
A
TOT
A
TRIGGER LEVEL A
TOT
A
WIDTH
A
WIDTH
A
kHz
EXT
REF
EXT
REF
Not bus
controll able
PM 6669 - OPERATORS MANUAL
Loading...