HP HP 8902A User manual

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Dear Customer,
As of November 1, 1999, four of Hewlett-Packard’s businesses, test and measurement,
semiconductor products, health care solutions, and chemical analysis became a new company,
Agilent Technologies. Now, many of your Hewlett-Packard products and services are in the care of
Agilent Technologies.
At Agilent Technologies, we are working diligently to make this transition as smooth as possible for
you. However, as a result of this transition, the products and related documentation contained in this
shipment may be labeled with either the Hewlett-Packard name and logo, the Agilent Technologies
name and logo, or a combination of both. Information in this package may refer to Hewlett-Packard
(HP), but applies to your Agilent Technologies product. Hewlett-Packard and Agilent branded
products with the same model number are interchangeable.
Whatever logo you see, the information, products, and services come from the same reliable source.
If you have questions about Agilent Technologies products and services, please visit our website at
http://www.agilent.com.
6LQFHUHO\
5HEUDQGLQJ7HDP

QUICK REFERENCE GUIDF
HP 8902A
MEASURING
RECEIVER
HEWLETT
PACKARD
8902A Operation and Calibration Manual
Part Number 08902-90029

-- -- <VI
AUDIO AVO
OETECTW
SENSOR MODULE
\
Slow Fast
6.0 6.1
AM > 20 Hz
AM > 1 kHz
Tuoy
Off
6.2
-
DlSTWTlDN AUDIO WS
ANALYZER DETECTOR
SY”0US
DETECTOR
CHANNEL IF Ws 1
FILTERS ETECTW
ERROR MESSACE
B- DISABLE
AUDIO
ry
IF PEAK ]zHDIESJh COUNTER
DETECTOR (OPTION 038
VOLTABE-TO-TIME
CONVERTER
SERIES ONLY)
\ -A
RF Gain (dB)
RF Attenuation (dB)
0 10 20 30 40 50 24 14
1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8
AUTO’
1.9
ExceptTuned RF Level

2. Audio Range
AUTO
7.0
7. RF Frequency Resolution
10 Hz 100 Hz
1 kHz 1 Hz
7.1 7.2 7.3 7.4
Modulation
AM ("10, pk)
01 01 01
02 02 02 02
03 03 03 03
04 04 04 04
8.2 8.3 8.4 8.5 8.6 8.7
I Detector I
All
Errors
Enabled
8.8
Pk, Ave, RMS
Auto
400
01 01 01
02 02 02 02
03 03 03 03
04 04 04 04
8.2 8.3 8.4 8.5 8.6 8.7
@M(rad, pk) 0.4 4 400
2.0 2.4 2.1 (2.4) 2.2 I 2.3
* Divide-by-10with 750 ps FM DE-EMPHASIS and PRE-DISPLAY.
All
Errors
Enabled
8.8
IF FREQ
I I I I
455 kHz [ 1.5 MHz
Bandwidth
I Wide Filter I Auto I 2.5 MHz I 200 kHz I 2.5 Ma
Narrow Filter
RF HP Filter Out
RF HP Filter In
I 4 I 1
30 kHz Bandwidth NarrowFilter Out
3.0 3.6 3.5 3.1 3.2
3.8
3.7 3.3 3.4
Auto 0
10 20 30 40
9.0 9.1 9.2 9.3 9.4 9.5
4. Tuned RF Level Detector
Selection and Display Averaging
50 60
9.6 9.7
I Detector I IFSvnchronous I IFAveraae 1
Auto 0
10 20 30 40
9.0 9.1 9.2 9.3 9.4 9.5 50 60
9.6 9.7
5. Audio Detector Response
Audio Peak Detector Response and RMS Detector Digital
Averaging Response:
I Fast I Slow 1
Measurement
AveragingTime@) AUTO
4.0
-1 5.1
10 1 0.1 AUTO 10 1 0.1
4.1 4.2 4.3 4.4 4.5 4.6 4.7
AUTO
#I #2
#3 #4
10.0 10.1
10.2 10.3 10.4
8. Error Message Disable and Enable
#5
10.5
I DisableErrors I
9. IF Gain
70. RF Power Range
77. Previous Ratio
1 1.2
Display previous ratio reference.

72/73. Calibration FM, AM
Computed
Residual
Measured
Display Peak FM
Display Peak AM
12.0 13.0
12.1 13.1
12.2 13.2
74. Limit
Set to Ratio
Reference
Enable
Display
Display
Measurement Code
14.0 Disable
Lower Limit Upper Limit
14.1 14.2
14.3 14.4
14.5 14.6
14.7 14.8
14.9
Display limit status: Lower limit status. Upper (O=disabled,
1 =enabled).
Disable
Enable
Display
AM Cal Factor FM Cal Factor
16.0 17.0
16.1 17.1
16.2 17.2
75. Time Base Check
15.0
Displays Error 12 if Option 002 is installed and oven is cold.
Displays
0 if Option 002 is installed and oven is warm, or if
Option
002 is not installed.
Displays 0 if internal time base is being used. Displays 1 if
external time base is being used.
15.1
7 6. Calibration Factors: AM,
7 7. Calibration Factors: FM
7 8. Tone-Burst Receiver
18."
Configures instrument as a tone-burst receiver. A time delay
of NN ms is inserted between detection of a carrier and
unsquelching of the output at MODULATION OUTPUT/AUDIO
INPUT. Range of NN is 1 to 99 ms. If NN is 0, delay is 99 ms.
2

21. HP-lBAddress
Establish
Select
dB
24.1 24.2
24.3 24.4
24.5 24.6
21.0
Displays HP-IB address in form AAAAAAA.TLS
AAAAAAA = binary address
T = 1 = talk only
L = 1 = listen only
S = 1 = requesting service
Display
Normalize
Noise Meas.
24.7
22. Service Request
22,"
A value of NN from 0 to 63 sums the weighted conditions below
to set up a service request mask. The summed, weighted
conditions are displayed when NN is 64.
1 Data Ready
2 HP-IB error (Cannot be disabled.)
4 Instrument error
8 Limit exceeded
16 Frequency Offset mode state change
32 Recal or Uncal
64 Read back SRQ mask
23. External LO (Option 030 Only)
23.0
23.1
23.2
Return the LO to internal.
Set the
LO to external.
Display LO status:
(0 = Internal, 1 = External)
24. Selective Power Measurement (Option 030 Only)
24.0
Sets the Measuring Receiver to the Selective Power Measurement
Mode.
Wide BW IF Filter
(Adjacent-Channel, Cellular)
Narrower BW IF Filter
(Adjacent-Channel)
Narrowest BW IF Filter
(Single-Sideband Noise)
24.8
24.9
Sets the value of the noise measurement BW.
Display the value of the noise measurement BW.
25. External Attenuation (dB)
25.2 Display attenuation value.
3

26. Set Reference
Frequency Offset Mode
Exit Re-enter
27.0 27.1
26.0 Exit attenuator measurement
26.1 Re-enter attenuator measurement
External LO
Display Enter/Enable
27.2 27.3
27. Frequency Offset Control
29/30. Other Audio Measurement Modes
29.0 SINAD
30.0 EXT AUDIO RMS LEVEL
31. Tuned RF Level Noise Correction
31.0 Turn off noise correction.
31.1 Turn on noise correction.
31.2
Dipslay noise correction status (1 = Off, 0 = On).
32. dB and Frequency Resolution
32.0
Normal measurement resolution (Power: 0.01 dB resolution)
(Audio Frequencies from
100 to 250 kHz; 0.1 Hz resolution).
Increased measurement resolution (Power:
0.001 dB resolution)
(Audio Frequencies form
100 to 250 kHz; 0.1 Hz resolution).
Display measurement resolution status.
(0 = normal,
1 = increased.
32.1
32.2
32.9 Tuned RF Level Measurements Using Track-Mode Tuning
1. Input a signal greater than -30 dBm.
2. Select 32.9 SPCL.
3. If using an external LO, enter the external LO frequency in MHz.
4. Select MHz to enter the manual tune mode.
5. Step the signal generator down in amplitude and press the
CALIBRATE key whenever the RECAL annunciator is displayed.
4

33/36. Other Measurement Modes
Display
Enter
33.0 LO FREQUENCY
34.0 IF FREQUENCY
35.0 RFLEVEL
36.0 PEAK TUNED RF LEVEL
RF Power to Range Range SET REF
Range 1 1 to 2 2
to 3 Reference
38.1 38.2 38.3 38.4
39.1 39.2 39.3 39.4
37. Calibration Factors: RF Power
37.0 Automatic Cal Factors
37.1 Manual Cal Factors
37.2
37.3
*Enter frequency, cal factor
37.4 *Display table size
37.5 *Recallreference cal factor
37.6
37.7
*Clear Table
Display Status (0 = auto, 1 = held)
*Recallnext frequency, cal factor
* Two tables are available. The table being used is determined by the status
of the Frequency Offset mode (Special Function
27).
38/39. Calibration Factors Tuned RF Level
39.9 Clear all calibration factors.
5

Frequency Offset (Special Function 27).
The Frequency Offset mode allows the Measuring Receiver to keep
track of frequencies involved in the down-conversion process. This
frequency offset process is used in conjunction with an external mixer
and Local Oscillator
(LO) to extend the frequency coverage above
1300 MHz.
To enter the Frequency Offset mode:
+ LO Frequency + Fl
To exit the Frequency Offset mode:
To re-enter the Frequency Offset mode with the same LO frequency:
To display the external LO frequency:
6

Display
Code
- - or 0 MHz
----
------
01
02
03
04
05
06
07
08
09
10
To Solve an Input Problem
To Solve an OperatingProblem
Adjust input signal level or change
measurement sensitivity. Decrease RF attenuationor gain.
Re-check operating conditions being
used.
I
Manually tune to input signal.
Check tuning. Re-check special operating conditions
being used.
Increase input signal level or decrease
AM.
Increase RF input attenuation.
Increase level of input signal.
Press the MHz key to center IF signal
in IF passband.
If problem persists, signal may be
drifting.
Decrease RF and/or IF gain setting.
Decrease selected RF input attenuatior
or increase IF gain.
If Range Hold is being used, check
range limits.
Decrease modulation level on input
signal to within measurement range. Increase range limit setting, Special
Function
2.N.
Increase carrier level or decrease AM
depth
(<go%).
I
Input level exceeds 7 Vrms (1 W peak).
Decrease level of input signal.
If making a TRFL measurement, also
press the CLEAR key.
Decrease selected RF or IF gain.
If Range Hold is being used, check
range limits.
Decrease modulation level on input
signal.
If making a TRFL measurement,
decrease level of input signal and pres
CLEAR key.
Decrease selected RF or IF gain.
If Range Hold is being used, check
range limits.
I
I
I
Check connection to Calibrator.
Check for Calibrator malfunction.
I
I
Check internaltime base for
malfunction(Option
002 only).
I
Adjust frequency of input signal to
within measurement range, or increase
measurement range.
If making a TRFL measurement, set thc
input level to between
0 and -20 dBm.
Select the Frequency mode. When the
instrument displays the frequency of
the input signal, press the MHz key an(
re-enter the TRFL mode.
I
7

Operating Error Codes
Display
Code
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
To Solve an Input Problem
Select linear (Watts) units, or disregard
error when there is no power present
at sensor input.
Secure connection at SENSOR input.
Increaseaudio signal level.
Input signal level during reference
measurement must be between 1.29’
and 2.5QV.
To Solve an OperatingProblem
Key in a different ratio reference.
Wait for oven to warm for highest
accuracy.
Remove power from power sensor
input during zeroing process.
Verify that cal factors have been
entered.
Check selected RF or IF gain level.
(When making Ratio measurements,
allow instrumentto complete the
reference measurement.)
Check sensor connection at RF
POWER OUTPUT port.
Increase IF gain.
Re-enter frequency within measuremen
range. (In Ratio mode, a reference
measurement of zero is invalid.)
Check compatibilityof function(s) with
selected measurement mode.
Check Special Function number and
re-enter (prefix invalid).
Check Special Function number and
re-enter (suffix invalid).
Invalid HP-IB code. Check function
codes.
Check Special Function Compatibility
with measurement.
End of RF Power calibration table. (If
displayed after first attempt to read
table using
37.6 SPCL, the table is
empty.)
8

Display
Code
30
31
32
33
34
35
To Solve an Input Problem
Maintain stable frequency and level
during calibration.
Check
SENSOR connection.
To Solve an Operating Problem
Change RF attenuation and gain or
Range Hold setting.
Calibrate RF Power measurement.
Change IF gain or Range Hold setting.
Check RF Power calibration.
Maintain stable frequency during TRFL
calibration.
Use a stable signal source for TRFL
calibration.
9

Measuring Receiver finction to Code Summary
Function
MEASUREMENTS
AM
FM
@M
RF POWER
FREQ
AUDIO FREQ
AUDIO DlSTN
IF LEVEL
TUNED RF LEVEL
FREQ ERROR
DETECTORS
PEAK+
PEAK HOLD
AVG (RMS Calibrated)
1 kHz DlSTN
400 Hz DISTN
RMS
PEAK&/2
PEAK-
DISPLAYS
Display LOG Result
Display LIN Result
dB EXT ATTEN
off
dB EXT AlTEN on
RATIO
Off
RATIO On
PREVIOUS RATIO
FILTERS
HP (High-Pass) FILTERS Off
50 Hz FILTER On
300 Hz FILTER On
LP (Low-Pass) FILTERS
Off
3 kHz FILTER On
15 kHz FILTER On
>20 kHz FILTER On
FM DE-EMPHASIS
PRE-DISPLAY Off and
PRE-DISPLAY On and
FM DE-EMPHASISOn
FM DE-EMPHASIS Off
25 PS DE-EMPHASIS
50
PS DE-EMPHASIS
75
PS DE-EMPHASIS
750
ps DE-EMPHASIS
Code
M1
M2
M3
M4
M5
s1
s2
s3
s4
s5
D1
D2
D3
D4
D5
D6
D8
D9
LG
LN
NO
N1
RO
R1
R2
HO
H1
H2
LO
L1
L2
L3
PO
P1
P2
P3
P4
P5
CALIBRATION
CALIBRATE Off
CALIBRATEOn
Yo CAL FACTOR
SET REF
ZERO
SAVE CAL
MANUAL OPERATIONS
AUTO TUNING
ENABLE ERRORS
DISABLE ERRORS
CLEAR (KEY)
BLUE KEY, CLEAR (KEY)
DISPLAY FREQ
DISPLAY INCREMENT
INPUT FREQUENCY (Hz)
fi Hz
u Hz
TRACK Mode
Off (Lock Mode)
TRACK Mode On
fi kHz
4) kHz
MHz (INPUT FREQ)
RECALL
STORE
SPECIAL FUNCTION
SPECIAL, SPECIAL
mV Units
pV Units
V Units
W Units
MISCELLANEOUS
MODULATIONOUTPUT
AUDIO INPUT
AUTOMATIC OPERATION
Auto-Ranging (RANGE HOLD
Off)
RANGE HOLD
Identify Instrument
INSTR PRESET (same as DCL)
Trigger Off
Hold
Trigger Immediate
Trigger with Settling
HexidecimalA
Hexidecimal
B
HexidecimalC
Hexidecimal
D
Hexidecimal E
Hexidecimal F
Code
co
c1
CF
RF
ZR
sc
AT
BO
B1
CL
BC
FR
FN
HZ
HU
HD
KO
K1
KU
KD
MZ
RC
TR
SP
ss
MV
uv
VL
WT
A0
A1
AU
GO
G1
ID
IP
TO
T1
T2
T3
xo
x1
x2
x3
x4
x5
10

Code to Measuring Receiver finction Summary
Code
A0
A1
AT
AU
BO
B1
BC
co
c1
CF
CL
D1
D2
D3
D4
D5
D6
D8
D9
FR
FN
GO
G1
HO
H1
H2
HU
HD
HZ
ID
IP
KO
K1
KU
KD
LO
L1
L2
L3
LG
LN
Function
MODULATION OUTPUT
AUDIO INPUT
AUTO TUNING
AUTOMATIC OPERATION
ENABLE ERRORS
DISABLE ERRORS
BLUE KEY, CLEAR (KEY)
CALIBRATE Off
CALIBRATE On
Yo CAL FACTOR
CLEAR (KEY)
PEAK+
PEAK HOLD
AVG (RMS Calibrated)
1 kHz DISTN
400 Hz DISTN
RMS
PEAKf/2
DISPLAY FREQ
DISPLAY INCREMENT
Auto-Ranging (RANGE HOLD
Off)
RANGE HOLD
HP (High-Pass) FILTERS Off
50 Hz FILTER On
300 Hz FILTER On
PEAK-
-Tr Hz
u Hz
INPUT FREQUENCY (Hz)
Identify Instrument
INSTR PRESET(same as DCL)
TRACK Mode Off (lock mode)
TRACK Mode On
kHz
kHz
LP (Low-Pass) FILTERS Off
3 kHz FILTER On
15 kHz FILTER On
>20 kHz FILTER On
Display LOG Result
Display LIN Result
Code
M1
M2
M3
M4
M5
MV
MZ
NO
N1
PO
P1
P2
P3
P4
P5
RO
R1
R2
RC
RF
s1
s2
s3
s4
s5
sc
SP
ss
TO
T1
T2
T3
TR
uv
VL
WT
xo
x1
x2
x3
x4
x5
ZR
Function
AM
FM
(PM
RF POWER
FREQ
mV Units
MHz (INPUT FREQ)
dB EXT ATTEN Off
dB EXT ATTEN On
PRE-DISPLAY
Off and
PRE-DISPLAY On
and DE-EMPHASIS On
FM DE-EMPHASIS Off
25 PS DE-EMPHASIS
50
PS DE-EMPHASIS
75 PS DE-EMPHASIS
750 /AS DE-EMPHASIS
RATIO Off
RATIO On
PREVIOUS RATIO
RECALL
SET REF
AUDIO FREQ
AUDIO DISTN
IF LEVEL
TUNED RF LEVEL
FREQ ERROR
SAVE CAL
SPECIAL FUNCTION
SPECIAL, SPECIAL
Trigger Off
Hold
Trigger Immediate
Trigger with Settling
STORE
pV Units
V Units
W Units
Hexidecimal A
Hexidecimal B
Hexidecimal C
Hexidecimal D
Hexidecimal E
Hexidecimal F
ZERO
11

HP 8901A/02A Code Differences
HP 8901A
A1 (or AU)
F1 (or MZ)
F2 (or KU)
F3 (or KD)
F4 (or 24 or SP)
F5 (or 25 or SS)
K1 (or CL)
U1 (or D1)
U2 (or D2)
U3 (or D3)
U4 (or D4)
Z1 (or HZ)
22 (or HU)
23 (or HD)
M4
s4
R1
R2
4.0SP
4.1SP
4.2SP
7.1SP
7.2SP
9.OSP
1O.OSP
11.OSP
11.1SP
11.3SP
15.0SP
Status
Byte
HP 8902A
AU
MZ
KU
KD
SP
ss
CL
D1
D2
D3
D4
HZ
HU
HD
35.0SP
36.0SP
LN,
R1
LG, R1
AT, KO
AT, K1
MZ, KO
7.1SP
7.3SP
G1
34.0SP
LN, R2
LG, R2
use
"-" key
15.0SP
Status
Byte
Functions
AUTOMATIC OPERATION
MHz (INPUT FREQ)
fi kHz
4 kHz
SPECIAL
SPECIAL, SPECIAL
CLEAR
PEAK+
PEAK HOLD
Average Detector (RMS Calibrated)
Hz INPUT FREQ
PEAK-
fi Hz
u Hz
Peak RF Level
Peak Tuned RF Level
O/o RATIO
dB RATIO
Auto Tuning, low-noise lock mode
Auto Tuning, track mode
Manual Tuning, low-noise lock
mol
10 Hz frequency resolution
1000 Hz frequency resolution
Hold Setting (RANGE HOLD)
IF Frequency
O/o PREVIOUS RATIO
dB PREVIOUS RATIO
Make Ratio Reference Negative
e
Oven Check (returns "0 if oven OK or not
installed, rather than doing nothing as in
the 8901A)
Status Byte Bits "Upper Limit" (weight 8)
and "Lower Limit"(weight
16) are merged
together into "Limit Reached"(weight 8)
12

Agilent Technologies. Inc www.agtlent.com
24001 E Mission
Liberty take, WA
99019
*.
. .::%;. . Ag i len t Techno log ies
*.*:*.*
. ! . Innovatingthe HP Way
June 8,2000
Dear Customer,
As of November 1, 1999, four of Hewlett-Packard’sbusinesses, test and measurement,
semiconductor products,health care solutions, and chemicalanalysis became a new company,
Agilent Technologies. Now, manyof your Hewlett-Packardproductsand services are in the care
of
Agilent Technologies.
At Agilent Technologies, we are working diligentlyto make this transition as smooth as possible for
you. However, as a result of this transition, the products and related documentationcontained in this
shipment may be labeled with either the Hewlett-Packardnameand logo, the Agilent Technologies
name and logo, or a combination of both. Information in this package may refer to Hewlett-Packard
(HP), but applies to your Agilent Technologies product. Hewlett-Packardand Agilent branded
products with the same model number are interchangeable.
Whatever logo you see, the information, products, and servicescome from the same reliable source.
If you have questions about Agilent Technologies productsand services, please visit our website at
http://www.agilent.com.
Sincerely,
RebrandingTeam

HP 8902A
MEASURING RECEIVER
Operation and Calibration Manual
SERIAL NUMBERS
This manual provides complete information for in-
struments with serial-numberprefixes:
2305A to 29148 and all MAJOR changes that apply to your instrum ent.
rev. 01 OCT92
numbers, refer to "INSTRUMENTSCOVERED BY
THLS MANUAL" in Section 1.
Sixth Edition
This material may be reproduced by or for the U.S.
Government pursuant to the Copyright License un-
der the clause at DFARS 52.227-7013 (APR 1988).
CopyrightOHEWLETT-PACKARD COMPANY 1985
EAST 24001
MISSION AVENUE, TAF C-34, SPOKANE, WASHINGTON, U.S.A. 99220
Operation and CalibrationManual HP Part 08902-90029
Other Documents Available:
Basic Operationand ApplicationGuide HP Part 5953-8458
Quick ReferenceGuide HP Part 08902-90060
Service Manual HP Part 08902-90031
Microfiche Operation and CalibrationManual HP Part 08902-90030
MicroficheService Manual HP Part 08902-90032 Printed in USA.
: November 1994
HEWLETT
PACKARD

1 Regulatory Information
(Updated March 1999)
1

Regulatory Information(UpdatedMarch 1999)
Safety Considerations
GENERAL
Thisproduct and related documentation must be reviewed for familiarization
with safety
markings and instructions before operation.
Thisproduct has been designed and tested in accordance with IEC Publication 1010,
"Safety Requirements for Electronic MeasuringApparatus," andhas been supplied in a
safe condition. This instruction documentation contains information andwarnings which
mustbe followed by the user to ensuresafe operation andto maintain
the product in a safe
condition.
SAFETY EARTH GROUND
A uninterruptible safety earthground must be provided from the main power source to the
product input wiringterminals, power cord,
or supplied power cord set.
SAFETY SYMBOLS
A Indicatesinstrument damage can occur if indicated operatinglimits are exceeded.
A Indicateshazardousvoltages.
& -
Indicates earth (ground)terminal
WARNING A WARNING note denotesahazard.It calls attention to a procedure,
practice, or the like, which, if not correctlyperformedor adhered to,
couldresult in personal injury.
Do not proceed beyond a WARNING
signuntil the indicated conditions are fully understoodand met.
CAUTION
A CAUTION note denotes a hazard. It calls attention to an operation
procedure, practice, or the like, which, if not correctly performed or adhered
to, could result in damage to or destruction of part or
all of the product. Do
not proceed beyond an CAUTION note until the indicated conditionsarefully
understood and met.
2 Chapter 1

Regulatory information(UpdatedMarch 1999)
SafetyConsiderations for this Instrument
WARNING Thisproduct is a SafetyClass I instrument (providedwith a
protectiveearthinggroundincorporated inthe power cord).The
mainsplug shall onlybe inserted in a socket outlet provided with a
protectiveearth contact.Any interruption of the protective
conductorinside or outsideof the product
is likely tomake the
productdangerous.Intentional interruption isprohibited.
Whenever it is likelythat the protection hasbeen impaired,the
instrument must be made inoperativeand be secured against any
unintendedoperation.
If thisinstrument istobe energizedvia anautotransformer (for
voltagereduction),make surethe common terminal is connectedto
the earth terminal
of the power source.
If thisproduct is notused as specified,theprotection provided by
the equipment couldbe impaired.Thisproduct must be used in a
normal condition(inwhich
all meansforprotection areintact)only.
No operator serviceableparts inthis product. Refer servicingto
qualifiedpersonnel. To prevent electrical shock, do not remove
covers.
Servicinginstructionsare for use by qualifiedpersonnel only. To
avoid electricalshock,do not perform any servicingunlessyou are
qualified
to do so.
The openingof covers or removalof parts is likely to expose
dangerousvoltages. Disconnect the product from
all voltage sources
while it
is beingopened.
The power cord is connected to internal capacitorsthat my remain
live
for 5 secondsafter disconnectingthe plug from its power supply.
For Continuedprotectionagainst firehazard, replace the linefuse(s)
only with
250 V fuse(s) or the same current rating and type (for
example,normalblow
or timedelay).Do not use repaired fuses or
shortcircuited fuseholders.
Alwaysuse the three-prongac power cord supplied with this
product. Failure
to ensure adequate earth groundingby not using
this cordmay causeproduct damage.
Thisproduct is designed for use in InstallationCategory I1 and
PollutionDegree
2 per ZEC 1010 and IEC 664 respectively. FOR
INDOOR USE ONLY.
This product has autoranginglinevoltage input,be surethe supply
voltage
is within the specified range.
Chapter 1 3