Acumen Hydra-Alert HRM User Manual

Temperature & Humidity Detection

2.4GHz + Sport Digital Heart Rate Monitoring
Conductive Fabric Chest Belt

CONTENTS

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Product Introduction

.1 2

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Product Introduction

. Using Your Hydra Alert..........2 6....................…………

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11.2

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Product Introduction

1

serutaeF1.1



HEART RATE MONITORING (HRM)

2.4 GHZ + Sport Digital HRM
Conductive Fabric Chest Belt
Current / Average / Maximum HR
EZ - Set Target Zone with Visual & Audible Alarms
Time Above / Within / Below Target Zone
In - Zone - Goal Count Down Timer (5-60 minutes)
Average HR Per Lap



TRAINING

Free Training
Lap Training (50 laps)
Interval Timers
Stopwatch for Elapsed Exercise Time

DEHYDRATION & FITNESS



Fluid Check
Temperature and Humidity Detection
Heat Index
Fitness Index
Max MET (VO2 MAX) Calibration
Programmable Exercise Type
Calorie Counter



STANDARD FEATURES

Daily Alarm
Clock / Date / Day Display
NiteLite with SmartLite
Scratch Resistant Crystal Lens
Water Resistant to 30 Meters

TM

for Safeguarding Against Dehydration

noitallatsnItleBtsehC3.1

Attaching Your Chest Belt

Moisten both strips of conductive fabric on the

.1

chest belt.

2.

Insert the two pins at the back of the transmitter
into the two mounting holes on the Conductive

Fabric Chest Belt.

SSER0SSER0

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oN

t

The watch does not have to be worn on your wrist to register your heart
rate, but it must be within 3 feet from your Conductive Fabric Chest Belt.

Replacing the Battery

3. Push the transmitter downwards to lock the
transmitter in place. (See the picture on the
left).

Check and adjust the tension of the Elastic Strap

.4

to ensure that the conductive fabrics fit tightly
against your skin.

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Remove the transmitter from the Conductive

.

1

Fabric Chest Belt.

2. Use a coin to open the battery door.

3. Replace the used battery with a new battery.

puteSCNYS4.1

Before you start training, enter SYNC Setup under Set Mode to synchronize the

heart rate chest belt with the watch as described below.



USING YOUR HYDRA-ALERT

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USING YOUR HYDRA-ALERT

5

weivrevO

The Normal Modes in Hydra-Alert HRM can be toggled in the following

sequence by pressing “MODE”.

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

If SYNC fails, produces a 3-second beep



Produces 1-minute of double short beep



until a button is pressed to stop it

Produces 4 double short beeps at the



remiT lavretnI

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peeb t

completion of each Interval
Produces 4 triple short beeps at the



completion of each Cycle
Produces a 3-second beep at the



completion of the Final Interval



Beeps constantly until HR is back to TZ

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●

●

Note: When the Heat Index is shown and its current value is at a very high level,
the watch will alert you by switching between the Heat Index values and warning
messages. The warning messages include Care, Ultra Care, Danger and Ultra

Danger (Refer to page 31 for additional details).

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Note 1: All three Timers will be turned On or Off simultaneously, so if you just

want to adjust one or two of the Timers, then you should set the time of
the other Timers to zero in Set Mode. The Timer will not be activated
when it is set to zero.

Note 2: When the Interval Timer starts, it will replace the Stopwatch.

7.2

F

Before you begin training, make sure you have synchronized the Heart Rate
Transmitter with the watch. Press “STR” to start free training and enter the Total
Time of free training.

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Fitness Index is used to measure your fitness level by monitoring how
quickly your heart rate recovers in one minute.

The Fitness Index Level is as follows:

Note 2 " "

can set Long or Short Menu in HR Setup. In Long Menu, you can see

more information about your exercise event.

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store data and exit to Free Training

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31

Before you begin training, make sure you have synchronized the Heart Rate

Transmitter with the watch. Press “STR” to start Lap Training and enter the Lap
Time of Lap Training.

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more information about your exercise event.

represents information that can only be viewed in Long Menu. You

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Starting a new Lap

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Press "EXIT " if you do not wish to store data and exit to Lap Training Mode.

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For more Information about Fitness Index, please refer to the Fitness

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toN

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Index in Free Training.

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toN

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can set Long or Short Menu in HR Setup. In Long Menu, you

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Hydra - Alert HRM has just one exercise file, so it can only save Free
Training information or Lap Training information.

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miT

e

ZTevob

ZTwoleB

exercise information.

●

sserP

“

of

eerfr

avitca ot

”TIXE

ruter ot

gniniart

i

t et

t

etiNeh

L

l

e

e

doM

iF ot n

●

●

Press “NXT ” to scroll to the recorded

at

miT

oT

e

l

exercise information.

”LEe.“

sserP

s

serP ● ”TIXE“edoMeliF ot

eerf

rof

e

tavitca ot

etiNeht

ot

ruter

n

gniniart

.

tiL

RHGV

A

71

81

ML

F

Note : " "

L

can set Long or Short Menu in HR Setup. In Long Menu, you can see

more information about your exercise event.

sserP ""ot

RHxaM

eirola

C

e

x

Issenti

dn

represents information that can only be viewed in Long Menu. You

M

g

niniartpaLrof(edoMeliF2.9.2

sserP ● ”LE e.t“

●

Press “NXT ” to scroll to the recorded
exercise information.

s

se

rP●

f

f

ro

)

tavitca ot

t

ot

”TIXE e“doMel

noitamrofnI esicrexE dedrocer eht weiv

nruter

o

g.niniarteer

oitamrofnIesicrexEdedroceR

n

eliF

itla

e

toT

m

ZTniem

iT

iLetiNeht e

iF

ML

ML

L

M

L

F

t

i

F

A&emiT

sso

iul

d

T

evobAemiT

Z

TwoleBemiT

Z

LE“

P ● ”

R

HGVA

RHxaM

iro

laC

e

dnIsse

n

VA&emiT

.

x

e

H

G

.

.

...

05

-paLfoR

1-paLfoRHGV

r

●

Press “NXT ”to scroll to the recorded
exercise information.

● ”TIX

t

sse

sserP

E“

g.niniartpalrof

e.tiLetiNeht etavitca o

doMeliF ot nruter ot

e

● "LE"
erP

● ""o

er

P ●

M

● "

rP

t

sserP

t

ss

noi

tamrofnI

ss

"EDOM"teS ot ecnavda ot

.edo

& sse

dlo

h

C"

x

te

dna

r

E ot nru

etiLetiNe

ht etavitca o

L

o

r

e

t

.

esicrexE dedrocer weiv

t tes

elif eh

edoMeliFesicre

91

Note 1 : " "

more information about your exercise event.

Note 2: Under all Normal Modes, if there is no HR or button signal for 3 minutes,
it will return to Clock Mode.

represents information that can only be viewed in Long Menu. You

L

M

can set Long or Short Menu in HR Setup. In Long Menu, you can see

02

doMteS01.2

e

ehT edoM teS sedulcni puteS emiT

puteS RH , puteS TE

M

In Set Mode, press " " to initiate Time Setup.

sserP

●

●

rP"

sse

sserP

●

"LE"

t

"

"

ter

EDOM"

t

o

,

dna puteS CNY

S .

e

ti

etavitca o

N eht

SemiTretne ot

p

ute

.

nru

.etiL

.edoMkcolCot

S

puteS mralA ,

S remiT lavretnI ,

pute

etIgnitte

sm

LtramS

eti

I

r

amS

etiL

t

)morF(

ramS

etiLt

oT(

)

.01.2

●
eul

av

●

Press & hold to increase
the speed at which the
values adjust

puteS mralA 2.01.2

mralA2

puteS

-"/"+"sse"rP

ramS eht teS

ffO / nO

rce

D/esaercn

P

ot etiLt

the

esae

n

ti

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cn

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vdA

a

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t

i

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e

R

gn

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.

S

e

put

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n

es

I "

1.01.2

S

/21

H

ruo

M

raeY

t

h

noM

et

aD

:etoN

In a 12-hour format, Time display without PM icon means AM.

es p

hca

ut

c

emiT

puteS

alA

H

setuni

put

eSm

r

emiT lavretnI

S

pute

R

p

STEM

ute

utesCNYS

p

puteSemiT1.01.2

puteS emiT

smetIgnitte

tamroF42

S

I

●

●

Press & hold to increase
the speed at which the
values adjust

"

,

noit

puteS r

P

eul

av

o adjust settings.t

sserp

"

sserP ● "

●

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sserP

ss

erP ●

● "TIXE

"

r

ss

P

e

-

"/"+"sser

"

tamrof ruoh 42/ 21 te

the

rce

esae

D/esaercn

n

vitca ot

LE

"

"

TXN"

oitces putes

.sn

u

ter ot

"TXN"sserP

e

cnavdA

ot

nit

txe

g

te

s

.meti

smetIgnitteS

I

u

o

H

r

e

i

.etiL

t

N eht eta

neewte

b elggot ot

e

teS ot nr

oM

d

"T

IXE"sserP

ot nruteR

SemiT

.pute

setun

iM

N

O

mralA

:etoN

You can also turn On / Off Daily Alarm swiftly by Press and Hold

olC

.

2

.01

miT

fo reb

muN

1 remiT rof

uni

set

M

1remi

T

oceS

1rem

iT

2

remiT rof

M
T

fsetuni

2remi

●
eul

av

●

Press & hold to increase
the speed at which the
values adjust

F

FO/

.edoMkc

r

e

P

smetIgnitteS

FFO/NOre

sremiT fo rebmuN

selcyC

I

●
eul

av

rof

●

Press & hold to increase
the speed at which the

ofsdn

r

values adjust

selc

yC fo rebmuN

ro

-"/"+"sser"P

the

rce

esae

D/esaercn

ffO / nO ot mralA eht teS

uteSremiTlavretnI3

p

puteS remiT lavretnI 3.01.2

-"/

"+"ss

"

FFO/ NO

rce

D/esaercn

P

o

t remiT lavretnI teS

the

esae

A

TXN"sserP

"

cnavdA

ot e

gnittes txen

.

meti

P

"TXN"sser

vd

ot ecna

n

ittes txen

g

.meti

TIXE"ss

erP

tnI

"

t n

o

ruteR

.

uteS

p

mralA

"

"

ni

"

TIXE"sser

ot nruteR

r

T

emi

lavre

.

puteS

12

22

”“

"P

s

gni

S

S

M

S

iT

N

2

M

A

M

a

U

metI

te

t

s

dnoce

rof

2r

emiT

3 remiT rof

r

ofsetuni

3remiT

n

ce

01.

inU

eg

uoC

rofsd

o

rem

3

:eto

You can also turn On / Off Interval Timer Swiftly by Press & Hold

etn

I

av

r

R

S

H4.

n

g

smetI

itteS

t

th

gieW

R

Hx

enozZT

miLreppU

t

i

enozZT

laoG-enoZ-nI

n

:etoN

You can also turn On / Off TZ Alarm by Press & Hold

& .edo

r

I

●
eul

av

selcyC fo rebmuN

●

Press & hold to increase
the speed at which the
values adjust

remiTl

.edoM

pute

puteS RH 4.01.2

te

S

g

noL/trohSune

S

U

S

I

●
av

●

Press & hold to increase

roftimiLrepp

the speed at which the
values adjust

rof

r

em

iTnwoDt

F

FO/NOmralAZT

M gnini

arT paL

-"/"+"sse

rce

D/esaercn

"/"+"

sserP

"

-

M

ot tinU te

rce

D/esaercn

eul

o ffO

P

the

esae

en

es tx

.

meti

"sserP

uneM gnoL / trohS

r

ocirte

the

esae

/ nO tmralAZTteS

avdA

xen

.met

i

puteS

:etoN

●

●

s

arhP

ER

TEM 5.01.2

tem

araPTEM

puteS eht gnittes

rof

Mlanosre

R:1e

RHtseR

UNAM

"

RHTS

smetIgnitteS

epyTesicrexE

tisnetnIesicrexE

re

laCTE

RHtse

e"rP

"TEM" ro

AC"

y

I

●

●

Press & hold to increase
the speed at which the
values adjust

esoohc uoy fI

edoM

esoohc uoy fI●

“ ss

esoohc uoy fI

arbilaCTEM

S

●

●

Press & hold to increase
the speed at which the
values adjust

D/esaercn

eul

av

ucitrap a

retfa

"TXN" o

TEM“ sserp ,epyT esicrex

i

”

E n

”

BILAC

i "

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sserP

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/ "-"

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es o

t

RH tseR

" sserP "TXN"

sserP "-"/"+

RH tseR

-"/"+"ss

,epyt esicrexe tceleS

"BAL

ytisnetni esicrexe tceleS

the

rce

esae

i

,esicrexE fo epyt ral

,epyT esicrexE n

erp

sserP

ro "OTUA" tcele

A

avd

eht t

cn

seR

bRHt

esaerceD/esaercnI

"TXN"sserP

ot ecnavdA

gnittes txen

.met

"TXN

"

sserp

y

tisnetnI esicrexE .

"

"

TXN"

ot e

te

s

"O.TUA" ro

t og

ot .retemaraPTEM

TXN

)noitarbilaC)xaM2OV(TEMxaM(noitarbi

t

e

h

"UNAM" y

ot ecnavdA

RH esicrexE

r ot

ot og ot

R

TIXE"sserP

"

ot nruteR

EM

T

.puteST

TEM

ot nrute

RH

TSER

IXE

erP

"

T

"

ss

ot nruteR

es

xE

icre

epy

sserP

"

IXE

T

"

ot nrute

epyT esicrexE

"TXN"sser

eR

ot ecnavdA

gnitt

tnI

S

rP

T"XN

R

ot ecn

g

nittes t

"

"

ni

"TIXE"sserP

r

ot n

ut

remiTlavre

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"

"

in

"TIXE"sse

e

rut

ot n

.

puteSRH

Training e

erF

P

"

32

42

"

n

OTUA

"

s

r

P

s

e

●
eva

moc s i

●

P

ser

s

tI.1 :eto

N

"RRE" dna

eht

.R

H egareva

er

n

rut

n

t

"

RTS"

egar

e

R

.detel

p

"T

IX

o

E"

M l

nosreP ot

a

ter

u

t

b

i

TE

laC

m-1

eht trats o
eb l

d

i

liw RH ts

t

o

nr

lacitamotua RH esicrexE retne lliw

l

y

noitar

oc etuni

nwodtn

u

ht nehw deyalps

.epyT

esicrexE

retfa sdnoces 2

.niaga

yalpsid

eht

yalpsid lliw ti ,gnidrocer gnirud langis etar traeh on si ereht fI.2

Replacing the Battery

ruoY .

wodtnuoc e

eht fo

When the watch displays “
your watch needs to be replaced. To maintain its water resistance, professional
battery replacement service is advised. Improper battery replacement or service
will void the warranty. In the case of self replace
should be documented in detail to ensure proper replacement of new battery, position
of contacts, and O-ring line-up. To maintain the watch’s water resistance, it is a good
idea to smear a small drop of silicone lubricant spray on the O-ring.

M

T

su

MRHtrelA-ardyH .yretta

tiL a se

LOW BATT

b 2302RC muih

” (as in the figure below), the battery in

ment, removal of the old battery

P

E

re

x

E

S

trat

tS

icrexEpo

I

:etoN

RHesicrexE:2esarh

ecnatsiDesic

eS

esicrex

tratS

s

erP

es

neht dna

ilaC

TEMdetarbilaC

C

r

uoY

si ereht f

ot nruter

E

teS CNYS 6.01.2

pu

-"/"+"sserP"

MK

tcel

6.1

eliM 1 ro

RTS"sserP

"

hctaw

pots eht

Return to Exercise
HR (Before the
stopwatch starts).

s

"POTS" ot ec

ot

.TEM

detarb

tarbila

ot nruter lliw ti dna

a

r traeh on

is

et

R

sicrex

He

tr

eR(

f

eso

e

h

ctawpotS

p

uteSTEM .sdnoces 2 retfa

irud lang

ocer g

n

es 2 retfa

"TXN"sserP

ot ecnavdA

R

p

sid

ya

l

"TIXE"sserP

d lli

i ,gnidr

w t

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IXE"sserP

"T

e

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ot nrute

p

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e

n

vda dna hctawpots eht dne

a

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t

neercs eht no

RRE"

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"

)pu

After the first low battery warning comes on for 15 minutes, the EL, Heart

Rate, Humidity & Temperature features will be turned off to conserve

the battery power.

52

62

3

.3

oZtegraTruoYgninimreteD

en

What is Target Zone Heart Rate Training? To benefit the most from your workout,

lacinhceT

R

ecnerefe

you should become familiar with your heart rate training zone. By exercising within
the correct heart rate range, you will achieve your fitness goals and strengthen your
cardiovascular system in less time. Here is basically how it works.

Scientific research has shown that effective conditioning requires that you maintain
your heart rate at the proper level for at least 20 minutes per workout (or per day).
Exercising above you heart rate training zone can be counter-effective. For most
people, as your heart rate exceeds 85% of your maximum Heart Rate, which is the
upper limit, your body begins to become anaerobic and produces acids. At this stage,
your body begins to burn muscle instead of fat. When you have reached the lower
limit of you Target Zone Heart Rate Training, effective conditioning can be achieved.
A heart monitor will tune you in to your body’s internal activity level and helps prevent
injury.

The Hydra-Alert HRM automatically sets the correct Heart Rate Target Limits by
using the American Heart Association standard range of 65% to 85% of the calculated
maximum Heart Rate based on your age. The maximum HR is calculated based
on the equation, max HR = [207 – (Age x 0.7)].

There are various formulas for calculating Heart Rate Target Zones. In most cases,
the formulas provide a range that is the same as or very close to the auto-setting

the Hydra-Alert HRM. If you prefer to fine-tune or program your own limits,

of
this can also be done in the HR Setting Mode. The internal automatic TZ calculation
is based on the following example:

TM

TM

gni

niarTssentiF&enoZtegraT1

Technical Reference

The calculated exercise range for a 30-year-old would be a low of 121 beats per
minute and a high of 158 beats per minute. You should never exercise near your
maximum heart rate (max HR) for any period of time.

Basic Fitness Target Zone & Tips

Depending on your specific goals, individual fitness level or just on how energetic
you feel, you may want to modify your heart rate range from one day to the next
based on the following chart:

82

ni

hctert

S

Stretch at the beginning and end of every workout. Stretching before your workout
increases flexibility and helps prevent muscle strain or injury. Stretching after your
workout loosens tight muscles and helps prevent soreness.

• Stretch before warm up and after cool down.

• Stretch slowly and gently. Never bounce or stretch to a point of pain.

• Hold each stretch for 30-60 seconds and exhale as you extend into stretches.

Warm Up & Cool Down: 55% or Less of Max. HR

Begin and end every workout with a slow and gradual warm up and cool down,
respectively, Smoothly easing into and out of strenuous activity helps your body
prepare your metabolism and blood flow to efficiently break down fat and change
from one intensity level to another. Going into your Heart Rate Target Zone too
quickly can cause your heart rate to increase too rapidly. Rapid increase of the
heart rate could compromise consistent energy levels during a workout.

• Slowly bring your heart rate to a level just below the lower limit of your Heart
Rate Target Zone.

• Maintain your heart rate at this level for 5 to 10 minutes.

The Fat Burning Zone: 55%-65% of Max.HR

The Fat Burning Zone is recommended for those who are not in adequate physical
shape. This is the ideal zone for those who are beginning to exercise regularly,
would like to loose weight, and are at high risk for heart problems. It is intended
for low intensity and/or long duration exercise. Exercising at a lower intensity allows
for a longer, continuous exercising period. For weight loss and new exercise programs,
l

onger, continuous, low intensity workouts are safer and more beneficial. Slow and

steady wins the race!

• Duration: Build up gradually to 30 to 60 minutes per workout.

• Frequency: Workout 3 or 4 times per week.

The Aerobic Zone: 65%-85% of Max. HR

The Aerobic Zone is recommended for those in good physical condition who
have been exercising on a consistent basis for an extended period of time.
Exercising at this range helps improve your fitness level and prevent injury

g

92

from excessive training.

• Duration: 20 to 30 minutes per workout.

• Frequency: At least 3 or 4 times per week.

reanAehT

bo

The Anaerobic Zone is ONLY recommended for to professional athletes or
those in exception physical condition. This zone can also be used for interval
training (high intensity for short durations) to help enhance overall strength and
endurance.

Heart rate fluctuations during physical activity can be tracked and documented
to determine overall health and fitness progress. As the cardiovascular system
becomes stronger, the resting heart rate will decrease. It will require more intensive
physical activity to reach the target zone and less time for the heart rate to recover.

Higher than usual resting heart rate and slower than usual heart rate recovery
could be an indication of strain of the heart from strenuous exercise or dehydration.
Resting for a day, lower intensity exercising, and replenishing the body with fluids
are advised. If your heart rate activity does not return to normal, please consult
a doctor.

.

The Heat Index combines the effects of heat and humidity. When heat and
humidity combine to reduce the amount of evaporation of sweat from the body,
outdoor exercise becomes dangerous even for those in good physical condition.
Key rules for coping with heat are to drink plenty of water to avoid dehydration,
slow down, and cool off when feeling fatigued, headache, a high pulse rate or
shallow breathing. Overheating can cause serious, even life-threatening conditions
such as heat stroke. The Apparent Temperature, which combines the temperature
and relative humidity, is a guide to the danger. Below is the Heat Stress Index
based on the Apparent Temperature.

%

58:enoZci

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w

RH

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Temperature

98-0

8

F°401-0

9

xednI ssertS tae

Dangers

Exercise more fatiguing than usual

Heat cramps, exhaustion possible

:ekortstaeH

In some cases, extreme heat can upset the body’s thermostat causing body
temperature to rise to 105 degrees or higher. Heat stroke symptoms include
lethargy, confusion, and unconsciousness. Suspicion of heatstroke also requires
immediate medical attention since heatstroke can result in death.

The importance of the Heat Index is to show how hot a particular combination
of heat and humidity feels. The Heat Index in the Hydra-Alert is a report of
the latest weather conditions based on the current temperature and the relative
humidity. Please refer to the following Heat Index Chart to learn about the

Apparent Temperature and to minimize the possibility of getting heat stroke.

t

oH

a

repmeTw

oC

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rettoHleeFfIekaMotenibm

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r

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U

Effects of Heat Illnesses

a

eH

t

eb

srep

easy.

Heat Syncope or Fainting:

Anyone not used to exercising in the heat can experience a quick drop in blood
pressure that can lead to fainting.

The loss of fluid and salt through perspiration and improper replacement of
them can lead to dizziness and weakness. Body temperature might rise, but
not above 102 degrees. In some cases, victims especially the elderly should
be hospitalized. Heat exhaustion is more likely to occur after continuous exposure
to excessive heat waves. The best prevention from heat exhaustion is to drink
plenty of water and minimize physical activity in the heat. Salt tablets should
not be taken without consulting a physician.

regn

artl

1

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Heat exhaustion likely

naht

Heat sroke imminent

htniyllaicepse,spmarcelcsumotdaelnac

. As with heat cramps, the cure is to take it

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e

,sgel

sa

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a

13

retemaraPTEMruoYgninimreteD3.3

If a specific activity is not available in your watch, choose a similar exercise
type and use the corresponding parameter from the table below to set your
watch (Please refer to page 28 to set the MET Parameter).

23

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raPTEMfoelbaT

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e

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S,87,6

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T
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W

Body Fluid Check Monitoring Guidelines and Tips

The ACUMEN Hydra-Alert provides an indication of the level of dehydration.
The purpose of the dehydration reading is to remind individuals to replenish the
body with fluids during exercise.

eka

ttI

esicrexe

assecen
The thirst mechanism is not precise in humans. An individual can lose fluids
equaling up to 3% of their body weight before a person feels that they need
to quench their thirst.

w

Most people need more than eight glasses (8 ounces) of water per day. Water
intake each day needs to be half your body weight in ounces. Do not drink
more than 32 ounces at any one time. Water intake should be divided throughout
the entire

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If the exercise period is under 60 to 90 minutes, water intake is always appropriate.
If the exercise period is more than 60 to 90 minutes, a sports drink offers an
energy advantage that can enhance stamina and endurance.

Cardiac drift occurs because dehydration causes a drop in blood volume causing
less blood to be pumped with each heartbeat. The heart rate increases 7 beats
per minute for each 1% loss in body weight due to dehydration.

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The American College of Sports Medicine on Exercise and Fluid Replacement
(ACSM, 1996) states that adequate fluid replacement helps maintain hydration
and, therefore promotes the health, safety, and optimal physical performance
of individuals participating in regular physical activity.

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Precautions,Warranty,Service & Repair

53

4.1 General Precautions

•

Do not operate buttons under water

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Dry off watch after use

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Dry off transmitter after use

•

•

Global Reset
If your monitor should ever get stuck or act erratically due to dropping it, static

shock or some other unforeseen reason, the Global Reset feature will allow
you to reset the unit and return all settings back to their internal defaults. To
perform this function, Press and Hold all four buttons together for 3 seconds
under any mode (display all LCD). The unit will automatically reset and return
to initial setting mode.

Caution: Global Reset will RESET ALL FUNCTIONS BACK TO ORIGINAL
FACTORY SETTINGS including your Personal Settings.

• Battery Replacement

The Hydra-Alert HRM uses a Lithium CR2032 battery.
To maintain the watch’s water resistance, professional battery replacement
service is advised. Improper battery replacement or service will void the warranty.
In the case of self replacement, removal of the old battery should be documented
in detail to ensure proper replacement of the new battery, position of contacts,
and O-ring line-up. It is a good idea to smear a small drop of silicone lubricant
spray on the O-ring.

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This product is warranted by Acumen Inc. for one year from the date of purchase
(with the exception of batteries and elastic chest strap) against defects in
workmanship and material. During this one-year period, these defects will be
repaired or the product will be replaced by Acumen Inc. at its sole discretion
without charge. This warranty covers normal consumer usage and does not
cover damage which occurs in shipment or failure which results from accident,
misuse, abuse, tampering, alteration or disassembling of the product or improper
maintenance. This warranty is effective only if the product is purchased and
operated in the USA and does not extend to any units which

in violation of written instructions furnished by Acumen Inc. or to units which
have been altered or modified without authorization of Acumen Inc., or to damage
to products or parts thereof which have had the serial number removed, altered,

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defected or rendered illegible. The product must be returned to an authorized
dealer for service if purchased outside of the USA.

Note: Please return the product to local authorized dealer for service if
purchased outside of the USA.

4.3 Service & Repair

Do not attempt to repair your product. Should the product malfunction, please
visit our website at www.acumeninc.com for Consumer Customer Service. If
the problem cannot be resolved, return the product to the factory for repair. Under
no circumstances should you attempt to open the housing and repair the product.
Should you do this, your warranty will be voided.

In USA, securely package and return the product pre-paid to:

Acumen Inc.,

101 A Executive Dr., Suite 100,

Sterling, VA 20166

USA.

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