Fluke 365 Use and care manual

365
Detachable Jaw True-rms Clamp Meter
Calibration Manual

365
Calibration Manual
2
Safety Information
A Warning identifies conditions and actions that pose hazard(s) to the user. A Caution
identifies conditions and procedures that could cause Meter damage, equipment under
test damage, or permanent loss of data.
Symbols used on the Product and in this manual are explained in Table 1.
XWWarning
To prevent possible electrical shock, fire, or personal injury:
•Use the product only as specified, or the protection supplied
by the Product can be compromised.
•Examine the case before you use the Product. Look for
cracks or missing plastic. Carefullylook at the insulation
around the terminals.
•Do not measure current while the test leads are in the input
jacks.
•The battery door must be closed and locked before you
operate the Product.
•Remove all probes, test leads, and accessories before the
battery door is opened.
•Do not use test leads if they are damaged. Examine the test
leads for damaged insulation, exposed metal, or if the wear
indicator shows. Check test lead continuity.
•Do not use the Product if it operates incorrectly.
•Do not use the Product around explosive gas, vapor, or in
damp or wet environments.
•Use only type AA batteries, properly installed in the Product
case, to power the Product.
•Hold the Product behind the tactile barrier. See Figure 1, .
•Replace the batteries when the low battery indicator ()
shows to prevent incorrect measurements.
•Use only specified replacement parts.
•Have an approved technician repair the product.
•Do not touch voltages >30 V ac rms, 42 V ac peak, or 60 V
dc.
•Do not apply more than the rated voltage, between the
terminals or between each terminal and earth ground.
•Keep fingers behind the finger guards on the probes.
•Connect the common test lead before the live test lead and
remove the live test lead before the common test lead.
•Do not work alone.

Detachable Jaw True-rms Clamp Meter
Safety Information
3
•Use caution around bare conductors or bus bars. To prevent
electrical shock, do not touch the conductor.
•Comply with local and national safety codes. Use personal
protective equipment (approved rubber gloves, face
protection, and flame-resistant clothes) to prevent shock
and arc blast injury where hazardous live conductors are
exposed.
•Disconnect power and discharge all high-voltage capacitors
before you measure resistance or continuity.
•Do not measure ac/dc current in circuits carrying more than
600 V or 200 A with the Product Jaw.
•Do not operate the product with covers removed or the case
open. Hazardous voltage exposure is possible.
•When white wear indicator insulation shows through the
clamp cable jacket, replace the clamp cable.
•When batteries are changed, ensure that the calibration seal
in the battery compartment is not damaged. If damaged, the
Product may not be safe for use. Return the Product to
Fluke for replacement of the seal.
•Do not exceed the Measurement Category (CAT) rating of
the lowest rated individual component of a product, probe,
or accessory.
•Measure a known voltage first to make sure that the product
operates correctly.
WCaution
To prevent possible damage to the product or to equipment
under test:
•Use the correct terminals, function, and range for
measurements.
•Clean the case and accessories with a damp cloth and mild
detergent only. Do not use abrasives or solvents.

365
Calibration Manual
4
Table 1. Symbols
Symbol Meaning Symbol Meaning
BAC (Alternating Current) JEarth ground
FDC (Direct Current) AC and dc current.
XHazardous voltage WRisk of Danger. Important
information. See Manual.
Battery. Low battery when shown. The Meter
shuts down when the battery reaches 2.0 V. TDouble insulated
~
Do not dispose of this product as unsorted
municipal waste. Go to Fluke’s website for
recycling information.
)Conforms to relevant North
American Safety Standards.
CAT III
IEC Measurement Category III
CAT III equipment has protection against
transients in equipment in fixed-equipment
installations, such as distribution panels,
feeders and short branch circuits, and lighting
systems in large buildings.
,
Application around and removal
from HAZARDOUS LIVE
conductors is permitted.
PConforms to European Union directives. ®Examined and licensed by TÜV
Product Services.
;Conforms to relevant Australian standards.
Note
The Measurement Category (CAT) and voltage rating of any combination
of test probe, test probe accessory, current clamp accessory, and the Meter
is the LOWEST rating of any individual component.

Detachable Jaw True-rms Clamp Meter
The Meter
5
The Meter
Clamp Meter
1
fig_01_365.eps
Figure 1. The Meter
Specifications
Electrical Specifications
AC Current
Range .....................................................200.0 A
Resolution...............................................0.1 A
Accuracy .................................................2 % ±5 digits (45 – 65 Hz)
2.5
% ±5 digits (65 – 400 Hz)
Crest Factor ............................................2.5 @ 125 A
1.55 @ 200 A
Add 2 % for C.F. >2
DC Current
Range .....................................................200.0 A
Resolution...............................................0.1 A
Accuracy .................................................2 % ±5 digits
AC Voltage
Range .....................................................600.0 V
Resolution...............................................0.1 V
Accuracy .................................................1.5 % ±5 digits (45 – 400 Hz)
DC Voltage
Range .....................................................600.0 V
Resolution...............................................0.1 V
Accuracy .................................................1 % ±5 digits
Resistance
Range .....................................................600.0 Ω/6000 Ω
Resolution...............................................0.1 Ω/1 Ω

365
Calibration Manual
6
Accuracy .................................................1 % ±5 digits
Mechanical Specifications
Size (L x W x H) .....................................225 x 65 x 46 mm
Weight.....................................................275 g (including batteries)
Jaw Opening...........................................18 mm
Detachable Jaw Cable Length................900 mm
Environmental Specifications
Operating Temperature........................... -10 °C to +50 °C
Storage Temp .........................................-40 °C to +60 °C
Operating Humidity .................................Non condensing (<10 °C)
≤90 % RH (at 10 °C to 30 °C)
≤75 % RH (at 30 °C to 40 °C)
≤45 % RH (at 40 °C to 50 °C)
(Without Condensation)
Operating Altitude ...................................2000 meters
Storage Altitude ......................................12,000 meters
Temperature Coefficients........................0.1 x(specified accuracy)/ °C (<18 °C or > 28 °C)
Safety Compliance.................................. ANSI/ISA S82.02.01:2004
CAN/CSA-C22.2 No. 61010-1-04
UL 61010-1:2004
EN/IEC 61010-1:2001 to 600V CAT III
Pollution Degree 2
P
EMC........................................................IEC/EN61326-1:2006
Agency Approvals...................................),;,®
Batteries..................................................2 AA, NEDA 15A, IEC LR6

Detachable Jaw True-rms Clamp Meter
Performance Tests
7
Performance Tests
XWWarning
To prevent possible electrical shock, fire, or personal injury,
do not perform the performance test procedures unless the
Product is fully assembled.
The following performance tests verify the complete operation of the Product and check
the accuracy of each function against the Product’s specifications. See Table 2. If the
Product fails any part of the test, calibration adjustment and/or repair is indicated. See
“Calibration Adjustment”.
Table 2. Performance Tests
UUT Meter Reading Limit
Test
(Switch Position) Calibrator Output
Low High
30 V @ 50 HZ 29.5 V 30.5 V
300 V @ 50 HZ 297.5 V 302.5 V
570 V @ 50 HZ 565.5 V 574.5 V
30 V @ 400 HZ 29.5 V 30.5 V
300 V @ 400 HZ 297.5 V 302.5 V
K
AC Volts
570 V @ 400 HZ 565.5 V 574.5 V
0 V -0.3 V 0.3 V
30 V 29.6 V 30.4 V
300 V 298.2 V 301.8 V
570 V 566.9 V 573.1 V
-30 V -30.4 V -29.6 V
-300 V -301.8 V -298.2 V
L
DC Volts
-570 V -573.1 V -566.9 V
0 Ω0Ω0.3 Ω
30 Ω29.6 Ω30.4 Ω
300 Ω298.2 Ω301.8 Ω
570 Ω566.9 Ω573.1 Ω
900 Ω894 Ω907 Ω
3000 Ω2982 Ω3018 Ω

Ohms
5700 Ω5669 Ω5731 Ω

365
Calibration Manual
8
Table 2. Performance Tests (cont.)
UUT Meter Reading Limit
Test
(Switch Position) Calibrator Output
Low High
.5A @ 50 HZ 9.6 A 10.4 A
5 A @ 50 HZ 98.7 A 101.3 A
9.5 A @ 50 HZ 187.5 A 192.5 A
.5 A @ 400 HZ 9.6 A 10.4 A
5 A @ 400 HZ 98.5 A 101.5 A
?
AC Amps
with 20 Turn
Coil
9.5 A @ 400 HZ 187.4 A 192.6 A
.5 A 9.6 A 10.4 A
5 A 98.7 A 101.3 A
9.5 A 187.5 A 192.5 A
-.5 A -10.4 A -9.6 A
-5 A -101.3 A -98.7 A
A
DC Amps with
20 turn coil
-9.5 A -192.5 A -187.5 A
Calibration Adjustment
Required Equipment
The equipment listed in Table 3 is required for calibration adjustment.
Table 3. Required Equipment
Equipment Required Characteristics Recommended Model
Calibrator 4.5 digit resolution Fluke 55xxA Calibrator
Wired coil 20 turns
Power Supply +3.0 V Common power supply or a 2 x
AA battery container
Adjustment Procedure
To adjust Product calibration:
1. Turn the Product over to access the battery compartment door screw.
2. Use a flat-head screwdriver to loosen the battery compartment door screw and lift off
the battery compartment door.
3. Remove the batteries from the Product.
4. Connect the Power Supply to the battery terminals.
5. Turn the Product ON.
6. The calibration button is under the calibration seal. Use small probe to press the
calibration button (through the calibration seal) to put the Product into calibration
mode.
7. Turn the Rotary Switch to select the function to be adjusted.

Detachable Jaw True-rms Clamp Meter
Calibration Adjustment
9
8. See Table 4 fand apply each required output from the Calibrator to the Product.
9. Wait for the reading to become stable.
10. Push to confirm and advance to each next step.
11. When the adjustment is complete, disconnect the Power Supply, replace the batteries
and reattach the battery compartment door and tighten the screw.
Table 4. Adjustment Procedure
Test
(Switch Position)
Product
LCD
Reading
Action
C000 Calibrator output 600 V @ 50 HZ, allow the reading to stabilize, wait 4
seconds, Push 
C001 Calibrator output 300 V @ 50 HZ, allow the reading to stabilize, wait 4
seconds, Push 
C002 Calibrator output 300 V @ 100 HZ, allow the reading to stabilize, wait
4 seconds, Push 
C003 Calibrator output 300 V @ 200 HZ, allow the reading to stabilize, wait
4 seconds, Push 
C004 Calibrator output 300 V @ 300 HZ, allow the reading to stabilize, wait
4 seconds, Push 
C005 Calibrator output 300 V @ 400 HZ, allow the reading to stabilize, wait
4 seconds, Push 
K
AC Volts
Save Push 
C006 Calibrator output 0 V, allow the reading to stabilize, wait 4 seconds,
Push 
C007 Calibrator output 600 V, allow the reading to stabilize, wait 4 seconds,
Push 
L
DC Volts
Save Push 
C008 Calibrator output 0 Ω, allow the reading to stabilize, wait 4 seconds,
Push 
C009 Calibrator output 600 Ω, allow the reading to stabilize, wait 4
seconds, Push 
C010 Calibrator output 660 Ω, allow the reading to stabilize, wait 4
seconds, Push 
C011 Calibrator output 6000 Ω, allow the reading to stabilize, wait 4
seconds, Push 

Ohms
Save Push 

365
Calibration Manual
10
Table 4. Adjustment Procedure (cont.)
Test
(Switch
Position)
Product
LCD
Reading
Action
C012 Calibrator output 10A @ 50 HZ, allow the reading to stabilize, wait 4
seconds, Push 
C013 Calibrator output 2.5A @ 50 HZ, allow the reading to stabilize, wait 4
seconds, Push 
C014 Calibrator output 2.5A @ 100 HZ, allow the reading to stabilize, wait 4
seconds, Push 
C015 Calibrator output 2.5A @ 200 HZ, allow the reading to stabilize, wait 4
seconds, Push 
C016 Calibrator output 2.5A @ 300 HZ, allow the reading to stabilize, wait 4
seconds, Push 
C017 Calibrator output 2.5A @ 400 HZ, allow the reading to stabilize, wait 4
seconds, Push 
?
AC Amps
Save Push 
C018 Calibrator output 0A, allow the reading to stabilize, wait 4 seconds,
Push 
C019 Calibrator output 10 A, allow the reading to stabilize, wait 4 seconds,
Push 
A
DC Amps
Save Push 

Detachable Jaw True-rms Clamp Meter
Maintenance
11
Maintenance
Clean the Product
WCaution
To prevent possible damage to the Product or to equipment
under test, do not use abrasive cleaners. They will damage the
case.
To clean the Product, use a cloth with a mild cleaning solution.
Battery Replacement
XW Warning
To prevent possible explosion, fire, or personal injury, replace
the batteries when the low battery indicator () shows to
prevent incorrect measurements.
WCaution
To prevent possible damage to the Product or to equipment
under test:
•Remove batteries to prevent battery leakage and damage to
the Product if it is not used for an extended period.
•Be sure that the battery polarity is correct to prevent battery
leakage.
To change the batteries, see Figure 2:
1. Make sure the Product is OFF.
2. Turn the Product over to access the battery compartment door screw.
3. Use a flat-head screwdriver to loosen the battery compartment door screw and lift off
the battery compartment door.
4. Replace the two AA batteries.
5. Reattach the battery compartment door.
6. Tighten the battery compartment door screw.

365
Calibration Manual
12
2
1
fig11_365.eps
Figure 2. Changing the Batteries
User Replaceable Parts
User replaceable parts are listed in Table 5.
Table 5. User Replaceable Parts
Fluke Part
Number Description Qty
376756
BATTERY,PRIMARY,ZN-
MNO2,1.5V,2.24AH,15A,LR6,ALKALINE,AA,14X50MM,BULK 2
3837209 FLUKE-365-2008,BATT DOOR 1
3858245 SOFT CASE,BLACK/YELLOW,FLUKE-365 1
3622684 MANUAL,USER MANUAL, FLUKE-365 1
855742 TL75-4201,TEST LEADS 1
3890706 LABEL,CALIBRATION SEAL,F362/365 1

365
Detachable Jaw
True-rms
Clamp Meter
Users Manual

1
Introduction
Warning
Read "Safety Information" before you use the Meter.
The Fluke 365 is a true-rms hand-held, battery-operated clamp meter (the Meter) that features a
detachable Jaw. The Meter measures:
•ac and dc current
•ac and dc voltage
•resistance
•continuity
The Meter ships with:
•TL75 or TL175 test leads
•carrying case
•two AA batteries (installed)
•magnetic
hanger
•365 User Manual

365
Users Manual
Safety Information
A Warning identifies conditions and actions that pose hazard(s) to the user. A Caution identifies
conditions and procedures that could cause Meter damage, equipment under test damage, or
permanent loss of data.
Symbols used on the Meter and in this manual are explained in Table 1.

Detachable Jaw True-rms Clamp Meter
Safety Information
Warning
To prevent possible electrical shock or personal injury, follow these guidelines:
•Use the Meter only as specified in this manual or the protection provided by the
Meter can be compromised.
•Examine the case before you use the Meter. Look for cracks or missing plastic.
Carefully look at the insulation around the connectors.
•Never measure current while the test leads are inserted into the input jacks.
•Make sure the battery door is closed and latched before operating the Meter.
•Remove the test leads from the Meter before the battery door is opened.
•Examine the test leads for damaged insulation or exposed metal. Check test lead
continuity. Replace damaged test leads before using the Meter.
•Do not use the Meter if it operates incorrectly. Protection can be compromised.
When in doubt, have the Meter serviced.
•Do not use the Meter around explosive gas, vapor or in damp or wet
environments.
•Use only type AA batteries, properly installed in the Meter case, to power the
Meter.
•When measuring, keep fingers behind the Tactile Barrier. See "The Meter" .
•To avoid false readings that can lead to electrical shock and injury, replace the
batteries as soon as the low battery indicator () appears.
•When servicing the Meter, use only specified replacement parts.

365
Users Manual
•Have the Meter serviced only by qualified service personnel.
•Be careful around voltages >30 V ac rms, 42 V ac peak, or 60 V dc. Such voltages
pose a shock hazard.
•Do not apply more than the rated voltage, as marked on the Meter, between the
terminals or between any terminal and earth ground.
•When using the probes, keep fingers behind the finger guards on the probes.
•Connect the common test lead before connecting the live test lead. When
disconnecting test leads, disconnect the live test lead first.
•Do not work alone so assistance can be rendered in an emergency.
•Use extreme caution when working around bare conductors or bus bars. Contact
with the conductor could result in electric shock.
•Adhere to local and national safety codes. Individual protective equipment must
be used to prevent shock and arc blast injury where hazardous live conductors
are exposed.
•Disconnect circuit power and discharge all high-voltage capacitors before you
do diode tests or measure resistance or continuity.
•Do not measure ac/dc current in circuits carrying more than 600 V or 200 A with
the Meter Jaw.
•Never operate the Meter with the back cover removed or the case open.

Detachable Jaw True-rms Clamp Meter
Safety Information
Caution
To avoid possible damage to the Meter or to equipment under test:
•Use the proper jacks, function, and range for the measurement application.
•Clean the case and accessories with a damp cloth and mild detergent only.
Do not use abrasives or solvents.
Table 1. Symbols
Symbol Meaning Symbol Meaning
AC (Alternating Current) Earth ground
DC (Direct Current) AC and dc current.
Hazardous voltage Risk of Danger. Important
information. See Manual.

Battery. Low battery when shown.
The Meter shuts down when the
battery reaches 2.0 V. Double insulated

Do not dispose of this product as
unsorted municipal waste. Go to
Fluke’s website for recycling
information.
Conforms to relevant North American
Safety Standards.

365
Users Manual
Symbol Meaning Symbol Meaning
CAT III
IEC Measurement Category III
CAT III equipment has protection
against transients in equipment in
fixed-equipment installations, such
as distribution panels, feeders and
short branch circuits, and lighting
systems in large buildings.
Application around and removal from
HAZARDOUS LIVE conductors is
permitted.
Conforms to European Union
directives. Examined and licensed by TÜV Product Services.
Conforms to relevant Australian standards.
Note
The Measurement Category (CAT) and voltage rating of any combination of test probe,
test probe accessory, current clamp accessory, and the Meter is the LOWEST rating of
any individual component.

Detachable Jaw True-rms Clamp Meter
The Meter
The Meter
Clamp Meter
1