Fluke 175, 177, 179 RMS User Manual

175, 177, & 179

True RMS Multimeters

Calibration Information

Introduction

XWWarning

To avoid electric shock or injury, do not perform the performance tests or calibration adjustment procedures unless qualified to do so.

The information provided in this document is for the use of qualified personnel only.

The 175, 177, & 179 Calibration Information provides the information necessary to adjust and verify the performance of the Fluke Models 175, 177, and 179 True RMS Multimeters (hereafter known as the Meter).

The following information is included in this document:

•Safety Information and International Electrical Symbols

•Test Lead Alert

•Specifications

•Testing and Replacing the Fuses

•Replacing the Battery

•Cleaning

•Replacing the LCD

•Performance Tests

•Calibration Adjustment

•User-Replaceable Parts and Accessories

•Complete Warranty

See the 175, 177, & 179 Users Manual for complete operating instructions.

Service Information

To contact Fluke, call one of the following telephone numbers:

USA: 1-888-99-FLUKE (1-888-993-5853)

Canada: 1-800-36-FLUKE (1-800-363-5853)

Europe: [phone]

Japan: [phone]

Singapore: [phone]

Anywhere in the world: [phone]

Or visit Fluke's Web site at: www.fluke.com.

To register your product, visit http://register.fluke.com

PN 1600476 March 2001 Rev.5, 2/08

© 2001-2008 Fluke Corporation. All rights reserved. Product specifications are subject to change without notice. Printed in U.S.A.

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175, 177, & 179

Calibration Information

Safety Information

"Warning" and "Caution" Statements

A “XW Warning" identifies hazardous conditions and actions that could cause bodily harm or death.

A "W Caution" identifies conditions and actions that could damage the Meter, the equipment under test, or cause permanent loss of data.

XWWarnings and Precautions

To avoid possible electric shock or personal injury, and to avoid possible damage to the Meter or to the equipment under test, adhere to the following practices:

•Use this meter only as specified in this manual or the protection provided by the Meter might be impaired.

•Before using the Meter, inspect the case. Do not use the Meter if it is damaged. Look for cracks or missing plastic. Pay particular attention to the insulation around the connectors.

•Inspect the test leads for damaged insulation or exposed metal. Check the test leads for continuity. Replace damaged test leads before using the Meter.

•Verify the Meter’s operation by measuring a known voltage. Do not use the Meter if it operates abnormally. Protection may be impaired. When in doubt, have the Meter serviced.

•Do not apply more than the rated voltage, as marked on the Meter, between the terminals or between any terminal and earth ground.

•Use caution when working with voltages above 30 V ac rms, 42 V ac peak, or 60 V dc. These voltages pose a shock hazard.

•Use the proper terminals, function, and range for your measurements.

•Do not operate the Meter around explosive gas, vapor, or dust.

•When using the probes, keep fingers behind the finger guards.

•When making connections, connect the common test lead before connecting the live test lead; when disconnecting, disconnect the live test lead before disconnecting the common test lead.

•Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity, diodes, or capacitance.

•Before measuring current, check the Meter's fuses (see "Testing the Fuses") and turn OFF power to the circuit before connecting the Meter to the circuit.

•Do not operate the Meter with the case (or part of the case) removed.

•Use only a single 9 V battery, properly installed in the Meter case, to power the Meter.

•Replace the battery as soon as the low battery indicator (b) appears. With a low battery, the Meter might produce false readings that can lead to electric shock and personal injury.

•Remove test leads from the Meter before opening the Meter case.

•When servicing the Meter, use only specified replacement parts.

•When replacing the fuses, use ONLY Fluke-specified fuses as listed in Table 5.

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True RMS Multimeters

International Electrical Symbols

International Electrical Symbols

The following international symbols appear in this document and on the Meter.

	B	AC (Alternating Current)	J	Earth ground
	F	DC (Direct Current)	I	Fuse
	F	AC or DC	P	Conforms to European Union directives
	B
	W	Risk of danger. Important Information.	$	Conforms to relevant Canadian Standards
		Refer to the manual.		Association directives
	X	Hazardous Voltage	T	Double insulated
	s	Technischer Überwachungs Verein.	!	Underwriters Laboratories, Inc.
		German certifying body.		Meter in accordance with IEC 61010-1. 54CJ
	b	Battery. Low Battery when shown on	;	Conforms to relevant Australian standards
		display.
				Do not dispose of this product as unsorted
	#	Verband Deutscher Electroniker. German	~
				municipal waste. Go to Fluke’s website for
		electronics association.
				recycling information.

Test Lead Alert

XWWarning

Personal injury or damage to the Meter can occur if the user attempts to make a measurement with a lead in an incorrect terminal.

As a reminder to check that the test leads are in the correct terminals, LEAd is displayed when the Rotary Switch is moved to or from the mA or A position.

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175, 177, & 179

Calibration Information

Specifications

Accuracy is specified for 1 year after calibration, at operating temperatures of 18 °C to 28 °C, with relative humidity at 0 % to 90 %. Accuracy specifications take the form of: ±( [ % of Reading ] + [ Counts ] ). AC conversions are ac-coupled, true rms responding.

Maximum voltage between

any terminal and earth ground: 1000 V dc or ac rms

Surge Protection:

8 kV peak per IEC 61010

WFuse for mA inputs: 440 mA, 1000 V FAST Fuse, minimum interrupt rating 10 kA

WFuse for A input: 11 A, 1000 V FAST Fuse, minimum interrupt rating 17 kA

Display:	Digital: 6000 counts, updates 4/sec
	Bar Graph: 33 segments;
	Updates 40/sec
	Frequency: 10,000 counts
	Capacitance: 1,000 counts
Altitude:	Operating: 2000 m; Storage: 12,000 m
Temperature:	Operating: -10 °C to +50 °C;
	Storage: -40 °C to +60 °C
Temperature coefficient:	0.1 X (specified accuracy) / °C
	(<18 °C or >28 °C)
Electromagnetic Compatibility	In an RF field of 3 V/M, accuracy = specified accuracy except in temperature:
(EN 61326-1:1997):	specified accuracy ±5 °C (9 °F)
Relative Humidity:	Maximum, Noncondensing
	90 % to 35 °C
	75 % to 40 °C
	45 % to 50 °C
Battery Life:	Alkaline: 400 hrs typical
Size (H x W x L):	4.3 cm x 9 cm x 18.5 cm
Weight:	420 g
Safety Compliances:	ANSI/ISA S82.02.01, CSA C22.2-1010.1, IEC 61010 to 1000 V Measurement
	Category III, 600 V Measurement Category IV
	CAT IIIEquipment designed to protect against transients in equipment in fixed-
	equipment installations, such as distribution panels, feeders and short branch circuits,
	and lighting systems in large buildings.
	CAT IVEquipment designed to protect user against transients from the primary
	supply level, such as an electricity meter or an overhead or underground utility
	service.
Certifications:	CSA, TÜV (EN61010), P, ;(N10140), VDE, UL

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								True RMS Multimeters
									Specifications
		Function	Range 1		Resolution	Accuracy ± ( [ % of Reading ] + [ Counts ] )
						Model 175	Model 177		Model 179
AC Volts 2,3			600.0 mV		0.1 mV	1.0 % + 3	1.0 % + 3		1.0 % + 3
			6.000	V	0.001 V	(45 Hz to 500 Hz)	(45 Hz to 500 Hz)		(45 Hz to 500 Hz)
			60.00	V	0.01 V
			600.0	V	0.1 V
			1000 V		1 V	2.0 % + 3	2.0 % + 3		2.0 % + 3
						(500 Hz to 1 kHz)	(500 Hz to 1 kHz)		(500 Hz to 1 kHz)
DC mV			600.0 mV		0.1 mV	0.15 % + 2	0.09 % + 2		0.09 % + 2
DC Volts			6.000	V	0.001 V
			60.00	V	0.01 V	0.15 % + 2	0.09 % + 2		0.09 % + 2
			600.0	V	0.1 V
			1000 V		1 V	0.15 % + 2	0.15 % + 2		0.15 % + 2
Continuity			600 Ω		1 Ω	Meter beeps at <25 Ω, beeper turns off at >250 Ω; detects opens or shorts of
						250 μs or longer.
Ohms			600.0	Ω	0.1 Ω	0.9 % + 2	0.9 % + 2		0.9 % + 2
			6.000 kΩ		0.001 kΩ	0.9 % + 1	0.9 % + 1		0.9 % + 1
			60.00 kΩ		0.01 kΩ	0.9 % + 1	0.9 % + 1		0.9 % + 1
			600.0 kΩ		0.1 kΩ	0.9 % + 1	0.9 % + 1		0.9 % + 1
			6.000 MΩ		0.001 MΩ	0.9 % + 1	0.9 % + 1		0.9 % + 1
			50.00 MΩ		0.01 MΩ	1.5 % + 3	1.5 % + 3		1.5 % + 3
Diode test			2.400	V	0.001 V		1 % + 2
Capacitance			1000 nF		1 nF	1.2 % + 2	1.2 % + 2		1.2 % + 2
			10.00	μF	0.01 μF	1.2 % + 2	1.2 % + 2		1.2 % + 2
			100.0	μF	0.1 μF	1.2 % + 2	1.2 % + 2		1.2 % + 2
			9999 μF 4		1 μF	10 % typical	10 % typical		10 % typical
AC Amps 5			60.00 mA		0.01 mA
(True RMS)			400.0 mA 6		0.1 mA	1.5 % + 3	1.5 % + 3		1.5 % + 3
			6.000	A	0.001 A
(45 Hz to 1 kHz)			10.00	A 7	0.01 A
1.		All AC voltage and AC current ranges are specified from 5 % of range to 100 % of range.
2.		Crest factor of ≤3 at full scale up to 500 V, decreasing linearly to crest factor ≤1.5 at 1000 V.
3.		For non-sinusoidal waveforms, add -(2% reading + 2% full scale) typical, for crest factors up to 3.
4.		In the 9999 μF range for measurements to 1000 μF, the measurement accuracy is 1.2 % + 2 for all models.
5.		Amps input burden voltage (typical): 400 mA input 2 mV/mA, 10 A input 37 mV/A.
6.		400.0 mA accuracy specified up to 600 mA overload.
7.		>10 A unspecified.

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175, 177, & 179

Calibration Information

Function	Range 1			Resolution		Accuracy ±( [ % of Reading ] + [ Counts ] )
					Model 175		Model 177	Model 179
DC Amps 5	60.00 mA			0.01 mA
	400.0 mA 6			0.1 mA	1.0 % + 3		1.0 % + 3	1.0 % + 3
	6.000	A		0.001 A
	10.00	A 7		0.01 A
Hz	99.99	Hz		0.01 Hz
(ACor DC-	999.9	Hz		0.1 Hz	0.1 % + 1		0.1 % + 1	0.1 % + 1
coupled,	9.999 kHz			0.001 kHz
V or A 2,3,4	99.99 kHz			0.01 kHz
input )
Temperature	-40 °C to +400 °C			0.1 °C	NA		NA	1 % + 10 8
	-40 °F to +752 °F			0.1 °F				1 % + 18 8
MIN MAX	For DC functions, accuracy is the specified accuracy of the measurement function ±12 counts for changes longer than
AVG	350 ms in duration.

For AC functions, accuracy is the specified accuracy of the measurement function ±40 counts for changes longer than 900 ms in duration.

1.All AC voltage and AC current ranges are specified from 5 % of range to 100 % of range.

2.Frequency is specified from 2 Hz to 99.99 kHz in Volts and from 2 Hz to 30 kHz in Amps.

3.For serial number 83911000 and below, and 83911241 to 84060000,frequencies <10 kHz are not specified in 600 mV ac, 60 mA ac, and 6 A ac ranges. Noise at frequencies below 4.5 Hz and amplitude below 600 mV may exceed the frequency specification. For Serial numbers

83911001 to 83911240 and 84060001 and above, this note does not apply.

4.Below 2 Hz, the display shows zero Hz.

5.Amps input burden voltage (typical): 400 mA input 2 mV/A, 10 A input 37 mV/A.

6.400.0 ma accuracy specified up to 600 mA overload.

7.>10 A unspecified.

8.Does not include error of the thermocouple probe.

Overload

Input

Common Mode Rejection

Normal Mode

Impedance

Ratio

Function

Protection 1

(Nominal)

(1 kΩ Unbalanced)

Rejection

Volts AC

1000 V rms

>10 MΩ <100 pF

>60 dB @ dc, 50 Hz or 60 Hz

Volts DC

1000 V rms

>10 MΩ <100 pF

>120 dB @ dc, 50 Hz or 60 Hz

>60 dB @ 50 Hz or 60 Hz

mV/T

1000 V rms 2

>10 MΩ <100 pF

>120 dB @ dc, 50 Hz or 60 Hz

>60 dB @ 50 Hz or 60 Hz

Open Circuit

Full Scale Voltage To:

Short Circuit

Test Voltage

600 kΩ 50 MΩ

Current

Ohms/Continuity

1000 V rms 2

<8.0 V dc

<660 mV dc

<4.6 V dc

<1.1 mA

Continuity/Diode

1000 V rms 2

<8.0 V dc

2.4 V dc

<1.1 mA

test

1.

10 7 V-Hz maximum.

2.

For circuits <0.3 A short circuit. 660 V for high energy circuits.

Function

Overload Protection

Overload

mA

Fused, 440 mA, 1000 V FAST Fuse

600 mA overload for 2 minutes maximum

A

Fused, 11 A, 1000 V FAST Fuse

20 A overload for 30 seconds maximum

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True RMS Multimeters

Testing the Fuses

Testing the Fuses

XWWarning

To avoid electrical shock or personal injury:

•Remove the test leads and any input signals before replacing the battery or fuses.

•To avoid electrical shock, arc blast, or damage to the Meter, install only fuses with the amperage, interrupt, voltage, and speed ratings specified in Table 5.

To test the fuses (refer to Figure 1):

1.Set the Rotary Switch to e.

2.Plug a test lead into the VeG terminal and touch the probe to the 400 mA (to test the 440 mA Fuse) or 10 A terminal (to test the 11 A Fuse).

•If the display shows a resistance value in the range shown in Figure 1, the fuse is good.

•If the display reads OL, replace the fuse and test again.

•If the display shows any other value, have the Meter serviced. See “Service Information” earlier in this manual.

440 mA	11 A
<12 Ω	OK <.5 Ω	OK
HOLD MIN MAX RANGE	OK	OK

V

aik12f.eps

Figure 1. Testing the Current Fuses

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