I N S T RU C T I O N M A N UA L

I N S T RU C T I O N
M A N UA L
MODEL 170
True RMS
DIGITAL POWER METER
a world leader in test & measurement
FINE INSTRUMENTS CORPORATION
341-5, SONGNAE-DONG, SOSA-GU, BUCHON-SHI, KYUNGGI, KOREA
- TEL: (82-32) 656-8771~4 - FAX: (82-32) 656-5844
- E-mail: [email protected]
- Internet: www. finestwon.com (or www.finest. co.kr)
© Copyright 2000 Fine Instruments Corp. All right reserved.
Specifications subject to change without notice.
Litho in Korea.
FIN E IN STRU MENTS C ORPOR ATION
Table of Contents
WARNING!
1. Introduction
1
2. Technical Specification
2
3. Safety
6
4. Operating Instructions
8
5. How to Measure
14
6. Maintenance and Calibration
20
7. Three – Phase Power Measurements
22
8. Three-phase Adaptor (Optional)
24
SOURCES LIKE SMALL HAND-HELD RADIO
TRANSCE IVERS , FIXE D STATION RADIO
1. Introduction
AND TELEVISION TRANSMITTERS, VEHICLE
RADIO TRANSMITTERS AND CE LLULAR
PHONES GENE RATE ELECTROMAGNETIC
RADIATION THAT MAY INDUCE VOLTAGES
IN THE TEST LEADS OF THE MULTIMETER.
IN SUCH CASES THE ACCURACY OF THE
MULTIMETER CANNO T BE GUARANTEED
DUE TO PHYSICAL REASONS.
Th is Me ter is a ha ndh eld ba tt ery op erat ed Tru e – RM S
Clam p–o n Power Me te r t hat is desig ned to m easu re th e
majority of parameters associated with electrical powers.
This Meter is designed and tested according to IEC Publication
1010-2-032 (1994-12)(Overvoltage Category lll) and the EMC
Dire ct ive (EN 500 81-1 an d EN 5008 2-1) a nd o ther safe ty
standards (see “ Technical Specifications”).
This user frien dly Meter has ma ny applications including ;
app liance testing, checking industrial and commercial power
systems, plant maintenance and inspection, and electric utility
testing, etc.
Features
Current to 1000A Peak (True RMS)
Voltage to 600V RMS (True RMS)
True Power, Apparent Power and Reactive Power
AC to 750 kW/kVA/kvar (True RMS)
Power Factor (Cos O)
0.3 Cap (or Lead) 1 0.3 Ind (or Lag)
Energy (kWh, kVAh, kvarh) In tegrat or for ma xim um 8 0
hours
1
Time Stamp for the Energy Integrator
Auto Ranging with Manual Ranging Capability
MAX/MIN Record Mode
Data Hold
Low Battery Indicator
Aut oma tic Po wer o ff a fte r 2 0 m in ut es ina ct ivity in a ny
measurement functio n just except the MIN/MAX RECORD
mode and the Energy Integrator mode
Frequency Response Range : 45 Hz to 450 Hz
A djacent Conductor Effect : 1.5% of current in a dja cen t
conductor (Max.)
Indoor use
Altitude : 2,000m
Operating Temperature and Humidity :
0 C to 50 C (32 F to 122 F) at R.H.< 80% non-condensing
Pollution degree : 2
Safety Conformance :
Con forms t o th e requ ire men ts of UL 3 111 -1, CSA C22. 2
No.1010.1-92 and ANSI/ISA–S82.01-94.
Weight : Approx. 545g (1.21 lb)
2. Technical Specifications
2.1 General Specifications
Display : 4 digit LCD for power
6 digit LCD for energy
A/D Conversion Rate : approx. 4 times/sec for digital
Max Volts to Ground : 600V RMS
Max Current : 700A RMS
Overflow Indication : LCD will show an “OFL”
Low Battery Indication : The BAT is displayed when the
b attery voltage d rop s b elow th e
operating voltage.
Size : 4.39 cm (H) x 9.75 cm (W) x 24.5 cm (L)
( 1.73” H x 3.84” W x 9.65” L)
Standard Accessories : Battery (9V), instruction manual, test
leads and clip-on holster
2.2 Electrical Specifications
Accuracy is given as ([% of rea ding] + [ numb er of lea st
significant digits]) at 18 C to 28 C with a relative humidity of up
to 80%, for a period of one year after calibration.
(The accuracy is specified f rom 5% to 100% of the select ed
range.)
True Power Measurement
RANGE
RESOLUTION ACCURACY
400 kW
0.1 kW
750 kW
1 kW
1.5% + 2
FREQUENCY
RANGE
OVERLOAD
PROTECTION
45 Hz to 450 Hz
750V RMS /
1000A Peak
FREQUENCY
RANGE
OVERLOAD
PROTECTION
45 Hz to 450 Hz
750V RMS /
1000A Peak
Battery Life : 80hours typical (alkaline)
Battery Type : NEDA 1604A 9V or 6LF22 9V
Apparent Power Measurement
Maximum Conductor Size : ø51mm (2,00”)
RANGE
Maximum Jaw Opening : 52mm (2,04”)
400 kVA
Maximum Conductor Voltage : 600V RMS
2
RESOLUTION ACCURACY
0.1 kVA
1.5% + 2
750 kVA
1 kVA
3
Reactive Power Measurement
kVAR =
AC Volts Measurement
(kVA)2 - (kW) 2
RANGE
Power Factor (cos O) Measurement
RANGE
0.3 ~ 1
FREQUENCY
RESOLUTION ACCURACY
RANGE
0.001
2% + 20
OVERLOAD
PROTECTION
750V RMS /
1000A Peak
10 Hz to 60 Hz
RESOLUTION ACCURACY
400 V
0.1 V
750 V
1V
1% + 3
FREQUENCY
RANGE
OVERLOAD
PROTECTION
45 Hz to 450 Hz
750V RMS
* Conversion Type : AC Coupled, True–RMS Measurement
* Crest Factor :
5
Voltage Range : 20 V to 750 V RMS
Current Range : 20A to 1000 A Peak
Additional Crest Factor Errors (non-sinusoidal)
Crest Factor
Error (% of reading)
1~3
0.5 %
3~5
3%
AC Amps Measurement
RANGE
RESOLUTION ACCURACY
400 A
0.1 A
700 A
1A
1.5% + 2
FREQUENCY
RANGE
OVERLOAD
PROTECTION
45 Hz to 450 Hz
1000A Peak
* Conversion Type : AC Coupled, True–RMS Measurement
* Crest Factor :
5
For the continuous waveform of 45 Hz to 65 Hz
( less than 750V RMS )
True Power Energy Integrator
RANGE
RESOLUTION ACCURACY
Additional Crest Factor Errors (non-sinusoidal)
Crest Factor
40000 kWh
0.1 kWh
75000 kWh
1 kWh
Error (% of reading)
1~3
0.5%
3~5
3%
For the continuous waveform of 45 Hz to 65 Hz
( less than 1000A peak )
1.5% + 2
45 Hz to 450 Hz
80 hrs.
Apparent Power Energy Integrator
RANGE
RESOLUTION ACCURACY
40000kvah
0.1 kvah
75000kvah
1 kvah
1.5% + 2
4
FREQUENCY
MAXIMUM
INTEGRATION
RANGE
PERIOD
FREQUENCY MAXIMUM
RANGE
INTEGRATION
PERIOD
45 Hz to 450 Hz
80 hrs.
5
Reactive Power Energy Integrator
RANGE
FREQUENCY MAXIMUM
RANGE
INTEGRATION
PERIOD
RESOLUTION ACCURACY
40000kvarh
0.1 kvarh
75000kvarh
1 kvarh
4% + 2
45 Hz to 450 Hz
80 hrs.
ONLY USE THE TEST LEADS SUPPLIED BY FINE
INSTRUMENTS CORPORATION
Disco nne ct th e live te st lea d be fore d isconn ectin g th e
common test lead.
Never leave the Me ter to contact with an y surface water.
Ingre ss of wate r could damage the electronics a s we ll as
cause a potential shock hazard.
Accidental contact with the conductor could result in electric
shock.
3. Safety
Re ad th e f o llowin g s af et y in fo rma ti on care fu lly b e fo re
attempting to operate or service the Meter.
Alth ough th e Mete r is designed to be a s safe as possib le ,
safety in use is the responsibility of the operator who must be
suitably qualified and/or authorized.
!
WARNING
M aximum v oltage betwe en cur rent carrying
c onductors , whi ch a re uninsul ate d, a nd
ground must not exceed 750V RMS. Always
choose an insulated conductor if available.
Do not attempt to measure an y current o r voltage higher
than the maximum limits o f the inp ut values shown in t he
electrical specifications.
Never measure any current while the test leads are inserted
into the input jacks.
Neve r us e t he Me t er o r te st l ea ds wh os e in su lat in g
protection has been impaired. Be extremely cautious when
clamping around uninsulated conductors or bus bars.
Frequently inspect the Meter and the test leads for damage.
If th e Met er is physically d am age d or does no t funct io n
correctly, don’t use it.
Avoid working alone with high voltage circuits.
Use the meter only as specified in this manual. Otherwise,
the protection provided by this Meter may be impaired.
Wh en ta king m ea sure me nt s in h ig h vo lta ge circu its ,
connections should be made to the circuits while the power
is off.
Safety Symbols
Warning! – There is a risk of electrical shock.
!
Caution – Refer to this manual before using this
meter.
Doubl e I ns ul a tion – The me te r is p rot ect e d
th roug ho ut by d ou ble insu lat ion or re inf orce d
insulation. W he n se rvicin g, use on ly sp ecif ie d
replacement parts.
Alternating Current (AC)
Earth Ground
CAT. II I I nst alla tio n ca te go ry (ove rvolt ag e ca te go ry)lll
according to EN61010-1 and EN61010-2-032.
6
7
4. Operating Instructions
(1)
CLAM P . Ope n s 52 mm (2. 0 4 in ch es) t o e n clos e
conductors.
4.1 Controls and Indicators
(2)
HOLD . Freezes reading in digital display.
(3)
DISPLAY . Liquid crystal display.
(4)
RANGE. Selects ranges or AUTO.
(5)
ON OFF . Selects meter’s power ON or power off.
(6)
V . Selects volts measurement mode.
(7)
A . Selects amperes measurement mode.
(8)
V . Volts Input Terminal.
(9)
VAR . Selects reactive power measurement mode.
(10) COM . Common Terminal.
(11) W . Selects true power measurement mode.
(12) VA . Selects apparent power measurement mode.
(13) MI NM AX . Se lect s MA X/M IN reco rd ing mo de an d
displays recorded MAX and MIN.
(14) COS O . Selects power factor measurement mode. The
Lower part of the LCD indicates “Cap” or “Ind”.
(15) ENERGY . Selects energy integrator mode.
(16) LEVER . Open and closes clamp jaws.
8
9
(17)
. Displayed when the Auto Power off mode has
been disabled. Automatically displayed when the meter
enters into e ithe r the MI N/MAX re cording mode or the
(29)
. Over-Range Indication. This is the display when
the input exceeds the display cap ability of the Meter. If
me a suri ng v olt a ge or cu rren t, rem o ve t he inp u t
immediately.
Energy Integrator mode.
(18) BAT . Displayed when internal battery needs replacing.
(30) Inef. Displayed when a power factor is beyond 1.099 or
apparent power is zero.
(19) R . Selects volts measurement mode.
(20) MAX MIN . Displayed in MIN/MAX RECORD mode by
pressing the MIN/MAX pushbutton.
(21) HOLD . Displa yed when HOLD pushbutto n has been
pressed.
(22) COS O . Displayed when COS O pushbutton has been
pressed.
(23)
. Displayed when time stamp function is activating in
the Energy Integrator mode.
(24) Units of Measure Annunciators .
Th ese symb ols indicate t he units of m easure of each
reading in any function.
(25) ENERGY. Displayed when ENERGY pushbut ton has
been pressed.
(26)
. Automatically indicate negative digital displays in
the power factor (COS O) measurement mode.
(27) AUTO . Displaye d when t he a uto -ran ging m ode is
active.
(28) POWER . Displa yed wh en t he W push bu tto n, V A
pushbutton or VAR pushbutton has been pressed in the
power measurement mode.
10
11
4.2 Operating State Diagram
Operating State Diagram
ON OFF button
power off
ON OFF button
effective
power
display
VAR button
reactive
power
display
VA button
apparent
power
display
any state
MIN/MAX button
‘R’ on
present
va lue dis pl ay
MIN/MAX button
V button
COS O button
‘COS O’ on
power factor(Upper)
&
‘Cap’ or ‘Ind’(Lower)
display
‘R ’ on
‘MIN’ on
min va lue di splay
MIN/MAX button
A button
Amperes
display
Voltage
display
‘ R’ on
‘MAX’ on
ma x val ue dis pla y
long MIN/MAX button
MIN/MAX button
Upper display only
Both (Upper & Lower) display
Energy button
Long Energy button
Voltage &
present energy
display
Long Hold
button
time stamp &
effective
energy display
Energy button
time stamp &
apparent
energy display
Energy button
Energy button
12
time stamp &
reactive
energy display
V button
COS O &
present energy
display
A button
A.V.COS O
W.VAR.VA
button
Amperes &
present energy
display
COS O button
To activate the long (MIN/MAX or ENERGY or HOLD) button,
press and hold down the button for 2 seconds.
13
5. How to Measure
5 .1 B efo re usin g th e M ete r, fa miliarize yo urself with th e
in stru men t a nd t his m an ua l. READ AND REV IE W THI S
MANUAL FREQUENTLY.
5.5 Measuring Power
When the Meter has been powered up, it defaults in the true
power measurement mode and auto-ranging mode (POWER,
kW and AUTO displayed).
! WARNING
5. 2 Visual Inspection of the Meter – Before use, inspect the
Meter for any conditions which would make it unsafe. Check
f or missin g or loose p arts. Ch eck also fo r d amag e. Ma ke
ce rtain tha t t he M et er is free from oils, g rease , d irt an d
excessive moistu re. IF A NY OF THESE CONDITIONS ARE
FOUND, DO NOT USE THE METER.
5.3 Visual Inspection of the Test Leads – Before use, check
the test leads for deterioration of the insulation.
!
WARNING
IF THE TEST LEADS ARE I N ANY WAY
DAM AGED O R DEGRADED, DO NOT USE
THEM. THEY MUST BE REPLACED.
MAX I M UM I NP UT VOLTAGE OF AC VOLT
RANGE IS 750V RMS. DO NOT ATTEMP T TO
MEASURE ANY V OLTAGE THAT EX CE EDS
750 V RMS TO AVOI D ELE CTRICAL SHOCK
HAZARD OR DAMAGE TO THE INSTRUMENT.
1. Put the Meter in the W (or VA or VAR) range.
2. Connect the black and red test leads to the COM a nd V
terminals respectively.
3. Clamp the ja ws arou nd th e current ca rrying co ndu ctor
und er test, en suring a good contact bet ween the closin g
faces of the jaws.
4. Apply the test leads to the circuit under test and read the
displayed value.
5.4 Power Up / Self Test
Press and hold the ON OFF pushbutton in order to power up
and initiate self test. The Meter beeps and all LCD segments
will turn on as part of a self–test routine.
Release the ON OFF pushbutton to initialize the Meter.
Replace the b atte ry be fore using the Mete r when t he low
battery indicator is displayed on the LCD. If the Meter does not
tu rn ON, th e battery is missing or worn out. To re pla ce th e
battery, see 6.1 Battery Replacement.
The M eter shuts OFF afte r 20 minutes if no pushbut ton is
p re sse d, eve n tho ugh it is m aking a m easurem ent in a ny
m easuremen t functio n just except t he MIN/MA X RECORD
mode and the Energy Integrator mode.
14
15
5.6 Measuring Power Factor
!
WARNING
MAXI M UM I NPUT V OLTAGE OF AC V O LT
RANGE I S 750V RM S. DO NOT ATTEMPT TO
MEASURE ANY VOLTAGE THAT EX CEE DS
750 V RMS TO AV OID ELECTRICAL S HOCK
HAZARD OR DAMAGE TO THE INSTRUMENT.
!
NOTE
1. Put the Meter in the COS O range.
2. Connect the black and red test leads to the COM a nd V
terminals respectively.
3. Clamp the ja ws arou nd th e current ca rrying co ndu ct or
ensuring a good contact between the closing faces o f the
jaws.
4. Apply the test leads to the circuit under test. ( See the figure
of 5.5 . )
5. Read the displayed value.
A time lag / lead power factor is indicated on the display by
– and + signs (of the upper part ) as well as by “Ind” and
“Cap” letters (of the lower part).
The Meter is des igned for me as ure ment in
si ngle - pha se s ys te ms. It is poss i ble to
measure in a three - phase system by creating
an arti fi ci al ne utr al poi nt by us ing a three
phase adapter.
16
17
5.7 Measuring AC Voltage
! WARNING
5.9 Integrating Energy
! WARNING
MAXI M UM I NPUT VOLTAGE OF AC VO LT
RANGE IS 750V RMS. DO NOT ATTEMPT TO
MEASURE ANY V OLTAGE THAT EXCEE DS
750 V RMS TO AVOI D ELE CTRICAL S HOCK
HAZARD OR DAMAGE TO THE INSTRUMENT.
MAXI M UM I NPUT V OLTAGE OF AC VO LT
RANGE I S 750V RM S . DO NOT ATTEMPT TO
MEASURE ANY V OLTAGE THAT EX CEE DS
750 V RMS TO AVOID ELE CTRICAL S HOCK
HAZARD OR DAMAGE TO THE INSTRUMENT.
1. Put the Meter in the V range.
2. Connect the black an d red test leads to the COM and V
terminals respectively.
3. Apply the test leads to the circuit under test.
4. Read the displayed voltage.
1. When the ENERGY push butt on h as bee n pressed , th e
Meter defaults in the true energy integrating mode and time
stamping mode (ENERGY, KW.h, : , and AUTO displayed).
5.8 Measuring AC Current
!
CAUTION
MAXIMUM INPUT CURRENT IS 700A RMS.
BEFORE SE LECTI NG THE CURRENT M EASUREME NT FUNCTI ON ENSURE THAT THE
TEST LEADS ARE DISCONNECTED FROM THE
INSTRUMENT.
1. Put the Meter in the A range.
2. Clamp t he jaws a ro und t he curre nt carryin g condu ct or,
ensuring a good contact between the closing faces of the
jaws.
3. Read the measured current.
18
2. Conn ect the black an d red test le ads to the COM an d V
terminals respectively.
3. Clamp the jaws around the current carrying conductor under
test, ensuring a good contact between the closing faces of
the jaws.
4. Apply the test leads to the circuit under test and press the
E NE RGY button to scro ll through the true, apparent, an d
reactive e nergy va lue. The elapse d time be tween the last
value and the start of the int egrat ion shows in th e upper
display.
5. Press and hold the ENERGY button for two seconds to exit
Energy Integrating mode. See 4.2 Operating State Diagram
for more information.
19
6. Maintenance and Calibration
If the Meter is not be used for periods of longer than 60 days,
remove the battery and store it separately.
6.1 Battery Replacement
The Me ter is po wered by a single 9V b attery (NEDA Typ e
1604 , 6 LF 22 or 006 p). To guarantee the specified batt ery
alkaline or other long-life batteries are recommended.
I f t he lo w-b at tery in dica tor o n t he d igit al d isplay will b e
d isp la ye d, re pl ace t he b a tt ery b y u sin g th e fo llo win g
procedures.
!
WARNING
TO P REVE NT E LECTRICAL HAZARD OR
S HO CK, TURN THE ME TER OFF AND
DI SCONNECT TES T LE ADS BE FORE RE MOVING TH E BACK COVER.
Battery Replacement
6.2 Maintenance
1. Un clamp the Meter from any conductor, and turn it off by
pressing the ON OFF pushbutton.
2. Place the Meter face down on a non-abrasive surface and
co mple tely lo osen the th re e rea r p ane l scre ws with a
phillips-head screwdriver.
3. Grasp the bott om of the rear cove r and lift it free of th e
case.
4. Lift the battery from the case, and carefully disconnect the
battery connector leads.
5. Snap the battery connector leads to the terminals of a new
b atte ry an d reinsta ll t he ba tte ry cover. The n insert th e
batte ry into p osition. Dre ss the battery leads so that they
will not be pinched between the case bottom and the case
top. Do not discard battery cover.
6. Rep lace t he re ar cove r, en suring it slips b ene ath th e
h old down lip (next to the jaws) and fit s secu re ly int o
position.
7. Reinstall the three securing screws.
20
Re pa irs or se rvici ng sho uld b e p erf orm ed by q u alif ie d
personnel only.
! WARNING
TO AVOID ELECTRICAL SHOCK OR DAMAGE
TO THE METER, DO NOT GET WATER INSIDE
THE CASE. RE MOVE THE TEST LE ADS AND
ANY INPUT SIGNALS BEFORE OPENING THE
CASE.
Periodically wipe the case with a damp cloth and detergent; do
not use abrasives or solvents.
6.3 Calibration
The Meter should be calibrated annually.
Regarding the service / calibratio n information on the Meter,
contact the nearest distributor of the Meter.
21
7. Three – Phase Power Measurements
Measurement Connections (3ø, 4 wire)
Refer to the following figures for suggested ways to measure
total power in a three phase system.
Measurement Connections (3ø, 3 wire)
22
23
8. Three – Phase Adaptor (Optional)
!
Me asurement Connections in a Unbala nced 3 phase / 3
wire system
NOTE
The three-phase adaptor should be used with
the Model 170 only.
The thre e-phase adaptor genera tes an artificial neu tral point
when the Model 170 measures;
• The true power (kW)
• The apparent power (kVA)
• The power factor (cos O)
in a either Balanced or Unbalanced 3 phase / 3 wire system.
Measurement Connections in a Balanced 3 phase / 3 wire
system.
W TOTAL = 3 XW1
1. Set the Model 170 at kW (or kVA or Cos O) range position.
2. Hook-on the 3 phase adaptor to the input jacks of the Model
170.
3. Clamp the jaws around One phase wire and apply the Red
test leads to the same wire and the two Black test leads to
the other two wires respectively.
4. Read t he displayed valu e. In ord er to ge t the total valu e,
multiply the displayed value by 3.
24
W TOTAL = W1 + W2 + W3
Repeat the above item 3 for each phase wire and accumulate
the displayed values for the total 3 phase power measurement.
25