Fluke 930 ESP, 931 ESP User manual

930/931

Tachometer

Users Manual

PN 4971074

January 2009, Rev. 2, 5/18

© 2009-2018 Fluke Corporation. All rights reserved. Specications are subject

to change without notice. All product names are trademarks of their respective
companies.

English

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LIMITED WARRANTY AND LIMITATION OF LIABILITY

Each Fluke product is warranted to be free from defects in material and workmanship
under normal use and service. The warranty period is one year and begins on the date of

shipment. Parts, product repairs, and services are warranted for 90 days. This warranty

extends only to the original buyer or end-user customer of a Fluke authorized reseller,
and does not apply to fuses, disposable batteries, or to any product which, in Fluke’s
opinion, has been misused, altered, neglected, contaminated, or damaged by accident
or abnormal conditions of operation or handling. Fluke warrants that software will operate
substantially in accordance with its functional specications for 90 days and that it has
been properly recorded on non-defective media. Fluke does not warrant that software will
be error free or operate without interruption.

Fluke authorized resellers shall extend this warranty on new and unused products to
end-user customers only but have no authority to extend a greater or different warranty
on behalf of Fluke. Warranty support is available only if product is purchased through a
Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke
reserves the right to invoice Buyer for importation costs of repair/replacement parts when
product purchased in one country is submitted for repair in another country.

Fluke’s warranty obligation is limited, at Fluke’s option, to refund of the purchase price,

free of charge repair, or replacement of a defective product which is returned to a Fluke

authorized service center within the warranty period.
To obtain warranty service, contact your nearest Fluke authorized service center to

obtain return authorization information, then send the product to that service center,
with a description of the difculty, postage and insurance prepaid (FOB Destination).

Fluke assumes no risk for damage in transit. Following warranty repair, the product will

be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that
failure was caused by neglect, misuse, contamination, alteration, accident, or abnormal
condition of operation or handling, including overvoltage failures caused by use outside
the product’s specied rating, or normal wear and tear of mechanical components, Fluke
will provide an estimate of repair costs and obtain authorization before commencing the
work. Following repair, the product will be returned to the Buyer transportation prepaid
and the Buyer will be billed for the repair and return transportation charges (FOB
Shipping Point).

THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL,
INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING
LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.

Since some countries or states do not allow limitation of the term of an implied warranty,
or exclusion or limitation of incidental or consequential damages, the limitations and

exclusions of this warranty may not apply to every buyer. If any provision of this Warranty
is held invalid or unenforceable by a court or other decision-maker of competent

jurisdiction, such holding will not affect the validity or enforceability of any other provision.

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930/931 Tachometer

CONTENTS

Introduction ............................................................................................................ 1

Safety .................................................................................................................... 1

Symbols ................................................................................................................. 2

Included Accessories .............................................................................................2

The Keypad ........................................................................................................... 2

The Display............................................................................................................ 3

Operation ............................................................................................................... 4

Conguration (Fluke 931)................................................................................. 4

Optical (Non-Contact) ...................................................................................... 4

Contact (Fluke 931).......................................................................................... 4

Surface Speed and Length (Fluke 931) ........................................................... 5

Contact Wheel Use (Fluke 931) ....................................................................... 5

Max, Min and Av Readings ..............................................................................5

Maintenance .......................................................................................................... 6

Replacing the batteries .................................................................................... 6

Cleaning ........................................................................................................... 6

Specications ........................................................................................................ 6

RPM ....................................................................................................................... 6

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1

2

3

4

5

A Mechanical Adapter

B Shaft Contacts G Display

C Contact wheel 0.1 m H Memory key

D Contact wheel 6 inch I Function key

E Shaft Extention J ON key

6

8

931

TACHOMETER

Feature 930 931 Feature 930 931

7

10

F Reector Strip

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INTRODUCTION

The Fluke 930 Tachometer and the Fluke 931 Tachometer (the Tachometer) are

hand-held instruments that accurately measure rotational Revolutions Per Minute

(RPM). The Fluke 931 measures surface speed as well as length. Use the red
beam function to make non-contact RPM measurements. The Fluke 931 uses the
mechanical adapter and selectable tip to make contact RPM measurements. The
Memory function allows storing the maximum (MAX), minimum (MIN), average
(AV), and last reading.

SAFETY

A Warning identies the conditions and procedures that are dangerous to the
user.

To prevent possible electrical shock, re, or personal injury:

● Carefully read all instructions.

● Read all safety information before you use the Product.

● Use the Product only as specied, or the protection supplied by the

Product can be compromised.

● Do not use the Product around explosive gas, vapor, or in damp or
wet environments.

● Do not use and disable the Product if it is damaged.

● Replace the batteries when the low battery indicator shows to

prevent incorrect measurements.

● Remove the batteries if the Product is not used for an extended
period of time, or if stored in temperatures above 50 °C. If the
batteries are not removed, battery leakage can damage the Product.

● Do not use the Product if it operates incorrectly.

● Do not wear loose clothing when making measurement around

moving machinery.

 Warning

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SYMBOLS

The following symbols are used on the Product and in this manual.

Symbol Description

WARNING.RISK OF DANGER.



Consult user documentation.

»



INCLUDED ACCESSORIES

The following accessories are included with the Tachometer:

0.1 m Contact Wheel

6 in Contact Wheel

Cone Shaft Contact

Internal Cone Shaft Contact

Shaft Extension

10 Reective Strips

THE KEYPAD

Battery or battery compartment.

Conforms to relevant South Korean EMC Standards.

Ã

Conforms to relevant Australian Safety and EMC standards.

¡

Conforms to European Union directives.



This product complies with the WEEE Directive marking
requirements. The afxed label indicates that you must not

discard this electrical/electronic product in domestic household

waste. Product Category: With reference to the equipment



types in the WEEE Directive Annex I, this product is classed as
category 9 “Monitoring and Control Instrumentation” product. Do

not dispose of this product as unsorted municipal waste.

Accessories 930 931

Key Description

Selects MAX, MIN, AV, and last reading

M

Turns ON the Tachometer and makes selections.

O

The Tachometer turns OFF after 30 seconds of inactivity.

Selects the Measurement function

F

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THE DISPLAY

1 2 3 5 64 7 8

Item 930 931 Description

A
B
C
D
E
F
G
H
I
J
K
L
M
N

Optical RPM measurement

Contact RPM measurement

Meters per minute

Meters per second

Feet per minute

Feet per second

Inches per minute

Trigger display

Memory, last stored reading

Memory, maximum reading

Memory, minimum reading

Memory, average reading

Low battery indicator

Numerical reading

9

10

11

12

13

14

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OPERATION

Press O to power up the Tachometer. The display test illuminates all LCD
segments for 1 second and then shows the congured surface speed selection.

• The last selected mode appears at when the Tachometer is turned ON.

• The Tachometer automatically turns OFF after 30 seconds of inactivity.

CONFIGURATION (FLUKE 931)

To congure the Tachometer for the correct contact wheel used for surface speed

measurements:

1. Turn ON the Tachometer.

2. Press M and F release.

3. Use F to select 0.1 (0.1 m circumference small wheel) or 6” (6 inch

circumference large wheel). A 12” wheel is not available.

OPTICAL (NON-CONTACT)

To measure RPM using the non-contact red beam, remove the mechanical

adapter from the top of Tachometer. Pull the adapter straight out to remove. See
Figure 2.

1. Stop the rotating device to measure.

2. Clean a spot for the reective strip.

3. Place reective strip on rotating device.

4. Turn ON the Tachometer.

5. On the Fluke 931 use F to select RPM.

6. Aim Tachometer at rotating reective strip keeping within 500 mm (20 inches).

O to enable the red beam.

7. Press

8. When the Tachometer is triggered by the reective strip, the trigger symbol on

the display ashes and RPM will be displayed.

CONTACT (FLUKE 931)

To use the Tachometer for contact measurement, insert the mechanical adapter
into top of the Tachometer, see Figure 1:

1. To measure, connect the cone or internal cone shaft contact to the end of the
shaft.

2. Turn ON the Tachometer and use F to select RPM C.

O to take measurements.

3. Press

4. When the Tachometer is triggered, the trigger symbol ashes and the RPM is
displayed.

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SURFACE SPEED AND LENGTH (FLUKE 931)

Surface speed and length can be measured using the mechanical adapter and

contact wheel.

Range

0.1 m circumference
small wheel

m/min 0.10 to 1999 0.10 to 1524

ft/min 0.40 to 6550 0.40 to 5000

in/min 4.0 to 78700 4.00 to 60000

m/sec 0.10 to 33.30 0.10 to 25.40

ft/sec 0.10 to 109 0.10 to 83.33

m 0 to 99999 0 to 99999

ft 0 to 99999 0 to 99999

in 0 to 99999 0 to 99999

CONTACT WHEEL USE (FLUKE 931)

1. Insert mechanical adapter into the top of the Tachometer. See Figure 1.

2. Select either the 0.1 m or 6 in contact wheel to use.

3. Set the Tachometer to 0.1 m or 6 in setting for the contact wheel in use.

4. Use F to select units of measure.

5. Contact wheel to surface to measure and press

6. When the Tachometer is triggered, the trigger symbol ashes and the
measurement is displayed.

MAX, MIN, AND AV READINGS

Press Mto enable MAX, MIN, and AV readings stored in memory. Each time a
new measurement is taken, the maximum, minimum, average, and last value are
stored. The last value is shown under MEM. The units of measure for the stored

readings will also be displayed. Press

O to exit the memory display mode.

6 inch circumference
large wheel

Oto take measurements.

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MAINTENANCE

Beyond replacing the batteries, do not attempt to repair or service the Product
unless you are qualied to do so and have relevant calibration, performance test,
and service instructions. The recommended calibration cycle is 12 months.

 Warning

To prevent possible electrical shock, re, or personal injury:

● Repair the Product before use if the battery leaks.

● Use only specied replacement parts.

● Have an approved technician repair the Product.

● Be sure that the battery polarity is correct to prevent battery

leakage.

REPLACING THE BATTERIES

Replace the batteries when the low battery symbol appears on the display.

1. Remove the battery cover on back of the Tachometer. See Figure 3.

2. Replace with 2 AA 1.5V IEC LR6 (Alkaline) batteries.

3. Replace the battery cover.

CLEANING

Periodically wipe the case with a damp cloth and mild detergent. Do not use
abrasives or solvents. Dirt or moisture in the terminals can affect readings.

SPECIFICATIONS

RPM

Range

Optical (non-contact) 1 RPM to 99999 RPM

Contact (Fluke 931) 1 RPM to 19999 RPM

Accuracy ±0.02 % of reading ±1 digit

Sensing Distance (optical) 500 mm (20 inches)

Battery Type 2x AA 1.5 V IEC LR6 (Alkaline)

Battery Life Fluke 930 approximately 35 hours

Fluke 931 approximately 40 hours

Operating Temperature 0 ºC to +50 ºC (32 ºF to 122 ºF)

Storage Temperature -20 ºC to +70 ºC (0 ºF to 160 ºF)

Operating Humidity 10 %-90 % RH (non-condensing)

Operating Altitude 2000 m

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Weight 250 g (0.55 lbs)

AC

Size 175 x 60 x 28 mm (7 x 2.5 x 1 inch)

Electromagnetic compatibility (EMC)

International IEC 61326-1:Portable; CISPR 11:Group 1,

Group1: Equipment has intentionally generated and/or uses conductively­coupled radio frequency energy that is necessary for the internal function of
the equipment itself.

Class A: Equipment is suitable for use in all establishments other than
domestic and those directly connected to a low voltage power supply network
which supplies bulidings used for domestic purposes.

Korea (KCC) Class A Equipment (Industrial Broadcasting &

Class A: Equipment meets requirements for industrial electromagnetic wave
equipment and the seller or user should take notice of it. This equipment is
intended for use in business environments and not to be used in homes.

Note: Serial number of the Tachometer is located in battery compartment.

Handling

1

Class A.

Communication Equipment)

B

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RPM

2

1.00 - 99999 rpm

RPM

RPM

Max 500 mm

i

0

2

n

0, 10 - 19999 rpm

3

Fluke 931

RPM /

/ BATT

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