Data Sheet
Page 3 of 3, Document #2155
170 Series True-rms DMMs
Extended Specifications
©2000 Fluke Corporation
Rev. A-11/2000
Fluke Corporation
PO Box 9090, Everett, WA USA 98206
Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands
For more information call:
U.S.A. (800) 443-5853 or
Fax (425) 446-5116
Europe (31 40) 2 675 200 or
Fax (31 40) 2 675 222
Canada (905) 890-7600 or
Fax (905) 890-6866
Other countries (425) 446-5500 or
Fax (425) 446-5116
Web access: http://www.fluke.com
©2001 Fluke Corporation. All rights reserved.
Specifications subject to change without notice.
Printed in U.S.A. 3/2001
Printed on recycled paper.
Fluke. Keeping your world
 up and running.
Detailed Specifications
Accuracy ± ( [ % of Reading ] + [ Counts ] )
Function Range 
1
Resolution Model 175 Model 177 Model 179
AC Volts 
2
600.0 mV 0.1 mV 1.0 % + 3 1.0 % + 3 1.0 % + 3
6.000V 0.001V (45 Hz to 500 Hz) (45 Hz to 500 Hz) (45 Hz to 500 Hz)
60.00V 0.01V
600.0V 0.1V
1000V 1V 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 6.000V 0.001V 0.15 % + 2 0.09 % + 2 0.09 % + 2
60.00V 0.01V
600.0V 0.01V
1000V 1V 0.15 % + 2 0.1 % + 2 0.1 % + 2
Continuity 600Ω 1Ω Meter beeps at < 25 Ω, beeper turns off at > 250 Ω;
detects opens or shorts of 250 ms or longer.
Ohms 600.0Ω 0.1Ω 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 2.400V 0.001V 1 % + 2
Capacitance 1000 nF 1 nF 1.2 % + 2 1.2 % + 2 1.2 % + 2
10.00 µF0.01 µF 1.2 % + 2 1.2 % + 2 1.2 % + 2
100.0 µF0.1 µF 1.2 % + 2 1.2 % + 2 1.2 % + 2
9999 µF 
3
1 µF 10 % typical 10 % typical 10 % typical
AC Amps 60.00 mA 0.01 mA 1.5 % + 3 1.5 % + 3 1.5 % + 3
(True-rms) 400.0 mA 0.1 mA
(600 mA for 18 hrs) 0.001A
6.000A
(45 Hz to 1 kHz) 10.00A 0.01A
(20A for 30s)
DC Amps 60.00 mA 0.01 mA 1.0 % + 3 1.0 % + 3 1.0 % + 3
400.0 mA 0.1 mA
(600 mA for 18 hrs)
6.000A 0.001A
10.00A 0.01A
(20A for 30s)
Hz 99.99 Hz 0.01 Hz 0.1 % + 1 0.1 % + 1 0.1 % + 1
(AC- or DC- 999.9 Hz 0.1 Hz
coupled, 9.999 kHz 0.001 kHz
V or A 
4, 5
 input ) 99.99 kHz 0.01 kHz
Temperature -40 °C to +400 °C0.1 °C NA NA 1 % + 1.0 °C
-40 °F to +752 °F0.1 °F 1 % + 1.8 °F
MIN MAX AVG For DC functions, accuracy is the specified of the measurement function ±  12 counts for changes
longer than 275 ms in duration.
For AC functions, accuracy is the specified of the measurement function ± 40 counts for changes
longer than 1.2 s in duration.
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. In the 9999 µF range for measurements to 1000 µF, the measurement accuracy is 1.2 % for all models.
4. In mA and A ranges, frequency measurement is specified to 30 kHz.
5. Frequency < 10 kHz are not specified in 600 mV AC, 60 mA AC, and 6 A AC ranges.
Function Overload Protection 
1
Input Impedance Common Mode Rejection Ratio Normal Mode Rejection
(Nominal) (1 kΩ Unbalanced)
Volts AC 1000 V RMS or DC > 10 MΩ < 100 pF > 60 dB @ DC, 50 or 60 Hz
Volts DC 1000 V RMS or DC > 10 MΩ <100 pF >120 dB @ DC, 50 or 60 Hz > 60 dB @ 50 Hz or 60 Hz
Open Circuit Test Full Scale Voltage To: Short Circuit Current
Voltage 6.0 MΩ 50 MΩ
Ohms 1000V RMS or DC < 1.5 V DC < 600 mV DC < 1.5 V DC < 500 µA
Diode test 1000V RMS or DC 2.4 to 3.0 V DC 2.4 V DC < 1.2 mA typical
1. 10
 7 
V-Hz maximum.



