175, 177, 179

True-rms Multimeters
Users Manual

May 2003 Rev. 3, 4/23

© 2003-2023 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
Introduction Safety Information
The Fluke 175, 177, and 179 are battery-powered, True-rms General Safety Information in the printed Safety Information
multimeters (the Product) with a 6000-count, 3 3/4-digit display document that ships with the Product. It can also be found online
and a bar graph. This manual applies to all three models. All at www.fluke.com. More specific safety information is listed in this
figures show the 179. manual where applicable.
In this manual, a Warning identifies conditions and procedures
Contact Fluke that are dangerous to the user. A Caution identifies conditions
Fluke Corporation operates worldwide. For local contact and procedures that can cause damage to the Product or the
information, go to our website: www.fluke.com equipment under test.
To register your product, view, print, or download the latest
manual or manual supplement, go to our website. Unsafe Voltage
+1-425-446-5500 During a voltage measurement, the Product alerts you to the
fluke-info@fluke.com. presence of a potentially hazardous voltage. When the Product
detects a voltage ≥30 V or a voltage overload (0L), the Y symbol
shows on the display to alert you to the presence of a potentially
hazardous voltage.

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175, 177, 179
Users Manual

Product Disposal Terminals

Dispose of the Product in a professional and environmentally Table 1 shows the terminals on the Product.
sound manner:
Table 1. Terminals
• Delete personal data on the Product before disposal.
• Remove batteries that are not integrated into the electrical 1 3
system before disposal and dispose of batteries separately. V

• If this Product has an integral battery, put the entire Product in

the electrical waste.
FUSED

2 4
Test Lead Alert
To remind you to check that the test leads are in the correct aik01f.emf
terminals, LEAd momentarily shows on the display when you move
the rotary switch to or from the mA or A position. Item Description
XW Warning Input terminal for ac and dc milliamp measurements to
A
400 mA and frequency measurements.
Attempting to make a measurement with a test lead in an
incorrect terminal might blow a fuse, damage the Input terminal for ac and dc current measurements to
B
Product, and cause serious personal injury. 10 A and frequency measurements.
Input terminal for voltage, continuity, resistance, diode,
C capacitance, frequency, and temperature (179 only)
measurements.
D Common (return) terminal for all measurements.

2
 True-rms Multimeters
Product Buttons

Product Buttons Table 2. Product Buttons (cont.)

Table 2 identifies the basic functions of the buttons on the Product. Item Description
The buttons have other functions described later in the manual. C Activates MIN MAX AVG mode.
Table 2. Product Buttons Toggles between Auto Range and Manual Range
modes.
D In Manual Range mode, increments the range. After
the highest range, the Product wraps to the lowest
HOLD MINMAX RANGE range.
(Yellow button) Selects alternate measurement
functions on a rotary switch setting, for example, to
E
select dc mA, dc A, Hz, temperature (179 only),
capacitance, diode test.

Rotary Switch Positions

1 2 3 4 5
Table 3 identifies the switch positions on the Product.
aik14.emf
Table 3. Rotary Switch Positions
Item Description Switch
Measurement Function
Toggles the backlight on and off. The backlight Position
A automatically turns off after 2 minutes (177 and 179 K AC voltage from 30.0 mV to 1000 V.
only).
Hz Frequency from 2 Hz to 99.99 kHz.
In MIN MAX AVG mode, push to pause or continue L DC voltage 1 mV to 1000 V.
MIN MAX AVG recording.
Hz Frequency from 2 Hz to 99.99 kHz.
In the Display HOLD mode, the Product holds the
reading on the display.
B
In the AutoHOLD mode, the Product holds the
reading on the display until it detects a new stable
reading. Then the Product beeps and displays the
new reading.

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175, 177, 179
Users Manual

Table 3. Rotary Switch Positions (cont.) Display

Switch Table 4 shows the items on the Product display.
Measurement Function
Position
Table 4. Display
E DC mV 0.1 mV to 600 mV.
Temperature −40 °C to +400 °C. 5 6
T −40 °F to +752 °F.
4
R Beeper turns on at <25 Ω and turns off at >250 Ω. 7
3 8
G Diode test. Displays 0L above 2.4 V.
2
F AC A from 0.300 A to 10 A. 7
1
BA DC A from 0.001 A to 10 A. 9

>10.00, display flashes. 13 10

>20 A, 0L is displayed. 12 14
11
15
Hz Frequency of ac A 2 Hz to 30 kHz. aik02f.emf

e Ohms from 0.1 Ω to 50 MΩ.

Item Symbol Description
E Farads from 1 nF to 9999 μF.
FB AC mA from 3.00 mA to 400 mA. A s Continuity test.
mA DC mA from 0.01 mA to 400 mA. B O Diode test.
Hz Frequency of ac mA 2 Hz to 30 kHz. C K Negative readings.
Note: AC voltage and current AC-coupled, true-rms, up to 1 kHz. Unsafe voltage. Voltage ≥30 V, or
D Y voltage overload (0L).

4
 True-rms Multimeters
Display

Table 4. Display (cont.) Table 4. Display (cont.)

Item Symbol Description Item Symbol Description
h Display HOLD is enabled. Display Auto Range The Product selects the range with
freezes present reading. L the best resolution.
In MIN MAX AVG mode, MIN MAX Manual Range The user selects the range.
AVG recording is interrupted.
E M ± Bar graph polarity.
AutoHOLD is enabled. Display holds
Ah
present reading until it detects new N 0L The input out of range.
stable input. Then the Product beeps W Test lead alert. Displayed when
and displays the new reading. O LEAd the rotary switch is moved to or
from the mA or A position.
 MIN MAX AVG enabled.
F MAX, MIN, Maximum, minimum, average or Table 5 identifies error messages that can show on the display.
AVG present reading.
Table 5. Error Messages
nμ F, °F, °C
G mVA, Mke, Measurement units. Error Description
kHz bAtt Replace the battery immediately.
H DC, AC Direct current, alternating current. In the capacitance function, too much electrical charge
di'C
I b Low battery. Replace battery. is present on the capacitor being tested.

J 610000mV All possible ranges. EEPr

Invalid EEPROM data. Have Product serviced.
Err
K Bar graph Analog display.
CAL
Invalid calibration data. Calibrate Product.
Err
0PEn Open thermocouple is detected.

5
175, 177, 179
Users Manual

Battery Saver (Sleep Mode) To use MIN MAX AVG recording:

The Product enters the Sleep mode and the display goes blank if 1. Set the desired measurement function and range.
there is no function change or button press for 20 minutes. To (Autoranging is disabled in the MIN MAX AVG mode.)
disable the Sleep mode, hold down B while turning the Product 2. Press M to activate MIN MAX AVG mode.
on. The Sleep mode is always disabled in the MIN MAX AVG
mode and the AutoHOLD mode.  and MAX come on, and the highest reading detected
since entering MIN MAX AVG shows on the display.
MIN MAX AVG Recording Mode 3. To step through the low (MIN), average (AVG), and present
The MIN MAX AVG recording mode captures the minimum and readings, press M.
maximum input values and calculates a running average of all 4. To pause MIN MAX AVG recording without erasing stored
readings. When a new high or low is detected, the Product beeps.
values, press H.
Note h comes on.
For dc functions, accuracy is the specified accuracy of the
5. To continue MIN MAX AVG recording, press H again.
measurement function ±12 counts for changes longer than
h turns off.
350 ms in duration.
6. To erase stored readings and exit, press M for 1 second or
For ac functions, accuracy is the specified accuracy of the
turn the rotary switch.
measurement function ±40 counts for changes longer than
900 ms in duration.

6
 True-rms Multimeters
Display HOLD and AutoHOLD Modes

Display HOLD and AutoHOLD Modes Manual Range and Autorange

XW Warning The Product has both Manual range and Autorange modes.
To avoid electric shock, fire, or personal injury, do not • In the Autorange mode, the Product selects the range with
use the Display HOLD or AutoHOLD mode to determine the best resolution.
if a circuit is live. Unstable or noisy readings will not be
• In the Manual Range mode, override Autorange and select
captured. the range yourself.
In the Display HOLD mode, the Product holds the reading on the
When you turn the Product on, it defaults to Autorange and Auto
display.
Range shows.
In the AutoHOLD mode, the Product holds the reading on the
1. To enter the Manual Range mode, press R.
display until it detects a new stable reading. Then the Product
beeps and displays the new reading. Manual Range shows.
1. Press H to activate Display HOLD. 2. In the Manual Range mode, press R to increment the
range. After the highest range, the Product wraps to the lowest
h comes on. range.
2. Press H again to activate AutoHOLD. Note
Ah shows on the display. You cannot manually change the range in the MIN MAX
AVG, or Display HOLD modes.
3. To continue normal operation at any time, press H for
1 second or turn the rotary switch. If you press R while in MIN MAX AVG, or Display HOLD,
the Product beeps twice, indicating an invalid operation,
and the range does not change.

7
175, 177, 179
Users Manual

3. To exit Manual Range, press R for 1 second or turn the Table 6. Power-Up Options
rotary switch.
Button Power-Up Options
The Product returns to Autorange and Auto Range shows.
K switch position turns on all LCD segments.
AutoHOLD
Power-Up Options L switch position displays the software version
number.
Table 6 shows the Power-Up Options. To select a Power-Up H
E switch position displays the model number.
Option, hold down the button indicated while turning the Product
from OFF to any switch position. M Disables beeper. (bEEP)
Power-Up Options are cancelled when the Product is turned OFF. Enables "Smoothing" mode. ('___)
R Dampens display fluctuations of rapidly changing
inputs by digital filtering.
(Yellow button) Disables automatic power-down
(Sleep mode). (PoFF)
B Sleep mode is also disabled while the Product is in
a MIN MAX AVG Recording mode, or the
AutoHOLD mode.
Disables automatic 2-minute backlight timeout.
S
(LoFF) (177 and 179 Only)

8
 True-rms Multimeters
Basic Measurements

Basic Measurements Measure Resistance

The figures on the following pages show how to make basic
measurements.
XW Warning HOLD MINMAX RANGE

To avoid electric shock, fire, or personal injury:

• Connect the common test lead before the live test
lead and remove the live test lead before the
common test lead.
• Disconnect power and discharge all high-voltage + _
capacitors before you measure resistance,
continuity, capacitance, or a diode junction. AIK04F.emf

Measure AC and DC Voltage Measure Capacitance

Volts AC Volts DC Millivolts DC

HOLD MINMA
X RANGE
HOLD MINMAX RANGE HOLD MINMAX RANGE HOLD MINMAX RANGE

V mV
V

+ _ + _ + _
+ _
+
AIK03F.emf AIK05F.emf

9
175, 177, 179
Users Manual

Test for Continuity Test Diodes

HOLD MINMAX RANGE HOLD MINMAX RANGE

+ _ + _

AIK06F.emf

Measure Temperature (179 Only)

HOLD MINMAX RANGE

RANGE

Vent
or
80BK-A Integrated Pipe
Type K DMM
Temperature Probe
AIK10F.emf
XW Warning: Do not connect 80BK-A to live circuits.

AIK07F.emf

10
 True-rms Multimeters
Basic Measurements

Measure AC or DC Current
XW Warning
To prevent possible electrical shock, fire, or personal
injury:
• Never attempt to make an in-circuit current
measurement when the open-circuit potential to
earth is >1000 V.
• Check the Product's fuses before testing. (See Test
the Fuses.)
aik08f.emf
• Use the proper terminals, switch position, and range
for your measurement. AC Zero Input Behavior of True-rms Meters
• Never place the probes in parallel with a circuit or Unlike averaging meters, which can accurately measure only pure
component when the leads are plugged into the sinewaves, True-rms meters accurately measure distorted
current terminals. waveforms. Calculating True-rms converters require a certain level
of input voltage to make a measurement. This is why ac voltage
To measure current: and current ranges are specified from 5 % of range to 100 % of
range. Non-zero digits that are displayed on a True-rms meter
1. Turn power OFF.
when the test leads are open or are shorted are normal. They do
2. Break circuit. not affect the specified ac accuracy above 5 % of range.

3. Insert Product in series. Unspecified input levels on the lowest ranges are:

4. Turn power on. • AC voltage: below 5 % of 600 mV ac, or 30 mV ac

• AC current: below 5 % of 60 mA ac, or 3 mA ac

11
175, 177, 179
Users Manual

Measure Frequency AC Current Frequency

XW Warning
To prevent possible electrical shock, fire, or personal x2 Hz
injury, disregard the bar graph for frequencies >1 kHz. If
the frequency of the measured signal is >1 kHz, the bar HOLD MINMA
X RANGE

graph is unspecified.
mA
The Product measures the frequency of a signal. The trigger level
is 0 V, 0 A ac for all ranges.

AC/DC Voltage Frequency + A

aik16.emf
HOLD MINMAX RANGE

• In frequency, the bar graph shows the ac/dc voltage or ac

current accurately up to 1 kHz.
• Select progressively lower ranges using manual ranging for a
V stable reading.
• To exit frequency, press B or turn the rotary switch.
+

aik15.emf

12
 True-rms Multimeters
Use the Bar Graph

Use the Bar Graph Maintenance

The bar graph is like the needle on an analog meter. It has an XW Warning
overload indicator (>) to the right and a polarity indicator (±) to the
left. To prevent possible electrical shock, fire, personal
injury, or damage to the Product:
Because the bar graph updates about 40 times per second, which
is 10 times faster than the digital display, the bar graph is useful • Repair the Product before use if the battery leaks.
for making peak and null adjustments and for observing rapidly • Do not operate the Product with covers removed or
changing inputs. the case open. Hazardous voltage exposure is
The bar graph is disabled when measuring capacitance or possible.
temperature. In frequency, the bar graph accurately indicates the • Remove the input signals before you clean the
voltage or current up to 1 kHz. Product.
The number of lit segments indicates the measured value and is • Use only specified replacement parts.
relative to the full-scale value of the selected range.
• Have an approved technician repair the Product.
In the 60 V range, for example (see below), the major divisions on
the scale represent 0 V, 15 V, 30 V, 45 V, and 60 V. An input of • Use only specified replacement fuses.
−30 V lights the negative sign and the segments up to the middle • Replace a blown fuse with exact replacement only
of the scale. for continued protection against arc flash.

AIK11F.emf

13
175, 177, 179
Users Manual

Clean the Product Replace the Battery and Fuses

Wipe the case with a damp cloth and mild detergent. Do not use XW Warning
abrasives or solvents. Dirt or moisture in the terminals can affect
readings. To prevent possible electrical shock, fire, personal
injury, or damage to the Product:
Test the Fuses • Remove the test leads and any input signals before
Test fuses as shown below. replacing the fuse.
• Use ONLY fuses with the amperage, interrupt,
440 mA 11 A voltage, and speed ratings specified.
<12 Ω OK <.5 Ω OK • Replace the battery as soon as the low battery
HOLD MIN MA X RANGE
OK OK indicator (b) appears.

Table 7 lists the replacement battery and fuses.

AIK12F.emf

14
 True-rms Multimeters
Specifications

Table 7. Replacement Battery and Fuses Specifications

Accuracy is specified for 1 yr 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] +
B1 [Counts])
F1 Maximum voltage between any
terminal and earth ground ................. 1000 V
F2
W Fuse Protection for mA inputs ..... 0.44 A, 1000 V, IR 10 kA
W Fuse Protection for A input .......... 11 A, 1000 V, IR 17 kA
Display ................................................ Digital: 6000 counts, updates 4/sec
Bar Graph........................................ 33 segments, Updates 40x/sec
Frequency ....................................... 10 000 counts
Capacitance .................................... 1000 counts
aik13f2.emf
Altitude
Item Part Number Operating ........................................ 2000 m
W F1 Fuse, 440 mA, 1000 V, FAST 943121 Storage ........................................... 12 000 m
W F2 Fuse, 11 A, 1000 V, FAST 803293 Temperature
Operating ........................................ −10 °C to +50 °C
B1 Battery, 9 V Alkaline
614487 Storage ........................................... −40 °C to +60 °C
NEDA 1604 / 1604A
Temperature coefficient..................... 0.1 X (specified accuracy / °C,
(<18 °C or >28 °C)

15
175, 177, 179
Users Manual

Relative Humidity .............................Maximum Non-condensing: Class A: Equipment is suitable for use in all establishments other than
90 % to 35 °C, domestic and those directly connected to a low-voltage power supply
75 % to 40 °C, network that supplies buildings used for domestic purposes. There
45 % to 50 °C may be potential difficulties in ensuring electromagnetic compatibility
Battery Life .......................................Alkaline: 400 hrs typical in other environments due to conducted and radiated disturbances.

Size (H x W x L) ................................4.3 cm x 9 cm x 18.5 cm Emissions that exceed the levels required by CISPR 11 can occur
Weight ...............................................420 g when the equipment is connected to a test object. The equipment may
not meet the immunity requirements of this standard when test leads
Safety and/or test probes are connected.
General .........................................IEC 61010-1: Pollution Degree 2 Korea (KCC)..................................Class A Equipment (Industrial
Measurement ................................IEC 61010-2-033: CAT IV 600 V, Broadcasting & Communication
CAT III 1000 V Equipment)
Electromagnetic Compatibility (EMC) Class A: Equipment meets requirements for industrial electromagnetic
International ..................................IEC 61326-1: Portable wave equipment and the seller or user should take notice of it. This
Electromagnetic Environment equipment is intended for use in business environments and not to be
CISPR 11: Group 1, Class A, used in homes.
IEC 61326-2-2 USA (FCC) ....................................47 CFR 15 subpart B. This product is
considered an exempt device per
Group 1: Equipment has intentionally generated and/or uses
clause 15.103.
conductively-coupled radio frequency energy that is necessary for the
internal function of the equipment itself.

16
 True-rms Multimeters
Electrical Specifications

Electrical Specifications
Accuracy ±( [ % of Reading ] + [ Counts ] )
Function Range [1] Resolution
175 177 179
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
AC Volts [2] [3]
600.0 V 0.1 V
1000 V 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
6.000 V 0.001 V
60.00 V 0.01 V 0.15 % + 2 0.09 % + 2 0.09 % + 2
DC Volts
600.0 V 0.1 V
1000 V 1V 0.15 % + 2 0.15 % + 2 0.15 % + 2
Product beeps at <25 Ω, beeper turns off at >250 Ω; detects opens or shorts of
Continuity 600 Ω 1Ω
250 μs or longer.
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
Ohms
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

17
175, 177, 179
Users Manual

Accuracy ±( [ % of Reading ] + [ Counts ] )

Function Range [1] Resolution
175 177 179
Diode test 2.400 V 0.001 V 1%+2
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
Capacitance
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
60.00 mA 0.01 mA
AC Amps [5]
400.0 mA [6] 0.1 mA
(True-rms) 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
60.00 mA 0.01 mA

[5]
400.0 mA [6] 0.1 mA
DC Amps 1.0 % + 3 1.0 % + 3 1.0 % + 3
6.000 A 0.001 A
10.00 A [7] 0.01 A
99.99 Hz 0.01 Hz
Hz
999.9 Hz 0.1 Hz
(AC- or DC- coupled, 0.1 % + 1 0.1 % + 1 0.1 % + 1
9.999 kHz 0.001 kHz
V or A [8] [9] input )
99.99 kHz 0.01 kHz

18
 True-rms Multimeters
Electrical Specifications

Accuracy ±( [ % of Reading ] + [ Counts ] )

Function Range [1] Resolution
175 177 179
-40 °C to +400 °C 0.1 °C 1 % + 10 [11]
Temperature [10] NA NA
-40 °F to +752 °F 0.1 °F 1 % + 18 [10]
For dc functions, accuracy is the specified accuracy of the measurement function ±12 counts for changes longer than 350 ms in
duration.
MIN MAX AVG
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] 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.
[8] Frequency is specified from 2 Hz to 99.99 kHz in Volts and from 2 Hz to 30 kHz in Amps.
[9] Below 2 Hz, the display shows zero Hz.
[10] In RF field of 3 V/m specified accuracy ±5 °C (9 °F).
[11] Does not include error of the thermocouple probe.

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175, 177, 179
Users Manual

Input Impedance Common Mode Rejection Ratio

Function Overload Protection [1] Normal Mode Rejection
(Nominal) (1 kΩ Unbalanced)
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
[2]
mV/T 1000 V rms >10 MΩ < 100 pF >120 dB @ dc, 50 Hz or 60 Hz >60 dB @ 50 Hz or 60 Hz

Open Circuit Test Full Scale Voltage To:

Short Circuit Current
Voltage 600 kΩ 50 MΩ
Ohms/Capacitance 1000 V rms [2] <8.0 V dc <660 mV dc <4.6 V dc <1.1 mA
Continuity/Diode test 1000 V rms [2] <8.0 V dc 2.4 V dc <1.1 mA
[1] 107 V-Hz maximum.
[2] For circuits <0.3 A short circuit. 660 V for high energy circuits.

Function Overload Protection Overload

mA Fused, 44/100 A, 1000 V FAST Fuse 600 mA overload for 2 minutes maximum, 10 minutes rest minimum
A Fused, 11 A, 1000 V FAST Fuse 20 A overload for 30 seconds maximum, 10 minutes rest minimum

20
 True-rms Multimeters
Electrical Specifications

Frequency Counter Sensitivity

Typical Sensitivity (RMS Sine Wave)
Input Range [1] [2]
2 Hz to 45 Hz 45 Hz to 10 kHz 10 kHz to 20 kHz 20 kHz to 50 kHz 50 kHz to 100 kHz
600 mV Unspecified [3] 80 mV 150 mV 400 mV Unspecified [3]
6V 0.5 V 0.6 V 1.0 V 2.8 V Unspecified [3]
Volts ac 60 V 5V 3.8 V 4.1 V 5.6 V 9.6 V
600 V 50 V 36 V 39 V 45 V 58 V
1000 V 500 V 300 V 320 V 380 V NA
6V 0.5 V 0.75 V 1.4 V 4.0 V Unspecified [3]
60 V 4V 3.8 V 4.3 V 6.6 V 13 V
Volts dc
600 V 40 V 36 V 39 V 45 V 58 V
1000 V 500 V 300 V 320 V 380 V NA
[4]
mA 5 mA 4 mA 4 mA 4 mA NA
AC/DC Amps
A 0.5 A 0.4 A 0.4 A 0.4 A [4] NA
[1] Maximum input for specified accuracy = 10X Range or 1000 V.
[2] Noise at low frequency and amplitude may exceed the frequency accuracy specification.
[3] Unspecified but usable depending on quality and amplitude of signal.
[4] In mA and A ranges, frequency measurement is specified to 30 kHz.

21