Dive Rite NiTek He Manual de usuario

UserGuide

www.diverite.com

Dateofpurchase:

NiTekHeDiveComputer

Content

NiTek He Dive Computer User Manual i

DEVELOPED

Dive Rite

175 NW Washington Street

Lake City, FL 32055

Phone: 386.752.1087

Fax: 386.755.0613

Web: www.DiveRite.com

This manual is copyrighted by Lamartek, Inc. dba Dive Rite.

You may not reproduce, translate, transcribe, or transmit any

part of this manual without express, written permission from

Lamartek, Inc. dba Dive Rite.

WARRANTY

INFORMATION Dive Rite will—at its sole discretion—repair or replace NiTek

He components proved to be damaged by faulty manufacture

or material, at no cost, for a period of up to one year (365

days) from the date of purchase.

This warranty applies only to the original retail purchaser. It

does not cover commercial or rental use, nor does it extend to

units purchased from other than an authorized Dive Rite

dealer.

This warranty specifically excludes battery depletion or other

conditions resulting from misuse, negligence, alteration,

accident, or unauthorized repair.

To make a claim under this warranty, the owner must have

registered his/her warranty using Dive Rite’s website

(www.diverite.com). He or she must then return the damaged

items to Dive Rite, along with a copy of the original purchase

invoice or receipt. No warranty service will be performed for

other than registered owners.

This warranty becomes void if NiTek He components are

damaged by anything other than normal recreational diving

use, or if they have been serviced or repaired by other than

authorized Dive Rite dealers.

Repairs made under this warranty will not extend the warranty

period.

All further claims, especially for damage after diving accidents,

are excluded from coverage under this warranty.

Dive Rite has no obligation to honor any extension of this

warranty.

This warranty is in lieu of all other warranties, express or

implied. No other person or representative is authorized to

assume for Dive Rite any other liability in connection with the

sale of this product.

Content

ii NiTek He Dive Computer User Manual

Table of contents

Chapter 1 Introduction •1

Overview •2

Features and functions •3

Specifications •5

Warnings •6

Chapter 2 Using the NiTek He •9

Getting started •10

Accessing display modes and screens •11

Surface mode •12

Time display and set mode •13

Dive option set and display mode •15

Plan mode •24

Computer mode •26

Gauge mode •35

Log mode •36

Profile mode •39

PC transfer mode •41

Surface mode (upon surfacing from a dive) •43

Altitude operation •45

Chapter 3 Care and maintenance •47

Proper handling techniques •48

Low battery warning •50

Index 51

NiTek He Dive Computer User Manual 1

Chapter 1

Introduction

Summary

This chapter provides an overview of the NiTek He, lists the

NiTek He’s features and functions, and covers warning

information that should be read before using your NiTek He.

Content Overview •2

Features and functions •3

Specifications •5

Warnings •6

When diving… •7

Introduction

2NiTek He Dive Computer User Manual

Overview

Congratulations on your purchase of the NiTek He dive

computer. The NiTek He is a sophisticated and comprehensive

dive computer that was designed to offer you the latest in dive

computer technology, safety, and reliability.

The NiTek He dive computer is a multifunctional computer for

recreational diving, providing information on depth, dive times,

no-decompression and decompression times, and nitrogen and

helium absorption and elimination during all dive phases,

including ascent, surface interval times, and subsequent dives.

This information is displayed on an easy-to-read display,

providing simple and direct communication between the diver

and the computer. With an easy-to-read display, the diver has no

problem following and reading the displayed information.

The NiTek He comes standard with a number of modes,

including a time mode, dive set mode, dive plan mode, log

mode, profile mode, PC transfer mode, and dive mode.

Note: It is extremely important that you carefully read and

understand this manual. Make sure you fully understand how the

NiTek He operates before diving with it.

This manual has been divided into three chapters:

•Introduction: Covers the features and functions,

specifications, and warnings for the NiTek He

•Using the NiTek He: Covers the operation of each mode for

the NiTek He

•Care and maintenance: Covers how to properly care for

and maintain the NiTek He and change the battery

Introduction

NiTek He Dive Computer User Manual 3

Features and functions

The NiTek He incorporates a number of important modes and

features:

•The NiTek He turns on automatically upon descent

•On the surface, the NiTek He constantly displays a minimum

of date and time

•The NiTek He uses easily accessible and highly reliable push

buttons instead of exposed electrical contacts

•The NiTek He can be programmed to monitor exposure to

seven different gas mixtures during a dive. Gas mixtures

including combinations of oxygen, helium, and nitrogen can

be programmed. Underwater, NiTek He users can switch

between mixes at the push of a button.

•The NiTek He is capable of functioning up to a depth of 394

feet (120 meters) when in dive computer mode and 656 feet

(200 meters) when in gauge mode

•The NiTek He automatically adjusts for altitudes up to

19,680 feet (6,000 meters)

•The NiTek He displays a variety of data underwater

including: date, time of day, current and maximum depths,

no-decompression dive time elapsed and remaining, and

water temperature

•The NiTek He displays data specifically related to the use of

Enriched Air Nitrox (EANx) including: fraction of oxygen

(FO2) setting, partial pressure of oxygen (PO2), and an

oxygen limit index (OLI) representing the cumulative effect

of a diver’s exposure to elevated PO2s (the theoretical “CNS

clock”) as a bar graph

•Through a combination of audible and visible alarms, the

NiTek He helps to alert the diver to a number of possibly

hazardous situations including: violation of ascent rate, no-

decompression state, and whether mandatory decompression

stops are necessary or if the diver has ascended above a

mandatory stop ceiling. Nitrox specific warnings occur when

the diver approaches or exceeds a limiting PO2 of 1.4 or 1.6

Introduction

4NiTek He Dive Computer User Manual

atmospheres depending on what is set, and when cumulative

exposure to elevated PO2s exceeds recommended limits.

•The NiTek He can be programmed to display data in

Imperial or metric units

•Dive depth can be displayed in fresh or salt water

equivalents

•Special mode indicators makes it easy to determine what

display mode or screen you are in at any time

•The NiTek He has a back light to illuminate the screen,

while in dive mode

•The NiTek He’s memory capability enables it to hold and

display log data on up to 30 hours of dive time or 60 dives

•Detailed dive-profile information can be stored for each dive

through user-programmable sample intervals of 15 or 30

seconds (longer intervals allow data for a greater number of

dives)

•Dive data can be uploaded and stored in a dive log format on

a desktop or laptop computer using the NiTekLogic™

software and optional PC interface

Introduction

NiTek He Dive Computer User Manual 5

Specifications

Algorithm: Buhlmann ZH-L16

Sample tissues: 16

Tissue half-lives: from 5 to 640 minutes

Size and weight

Length: 4.25 in (10.8 cm)

Height: 1.25 in (3.2 cm)

Weight: ounces ( g)

Display face

Backlight illumination

Low battery indicator

Two user buttons

Water immersion switch

Depth sensor

Sea and fresh water calibration

Measuring range: 0 to 394 feet (0 to 120 m) measured every second

(Gauge mode 656 feet (200 m)

Accuracy: +/-3% + 2 feet (0.5 m)

Surface interval time: from 0 to 48 hrs

Diving time: from 0 to 599 minutes

Ascent rate warning: 26 to 59 feet per minute (8 to 18 m)

Thermometer

Measuring range: 23 °F to 104 °F (-5 to 40 °C)

Accuracy: +/-4 °F (2 °C)

Measurement interval: Every minute

Clock

Accuracy: +/-30 sec on average per month

24-hour display

Altitude

Altitude function monitoring: from 0 to 19,680 feet (6,000 m) measured

every 10 minutes

Measurement interval: Every 10 minutes

Battery

Li/MnO2 CR 2032 3V button battery

Average battery life: About 3 years (50 dives/year)

Replacement: User replaceable

Breathing gas

Mixes: 7 gas settings

O2 setting range: 8 to 99 percent

O2 setting: 1% increments

He setting range: 0 to 92 percent

He setting: 1% increments

Dive log

Dive logging: Maximum of 60 dives

Profile logging: Maximum of 30 hours

Profile sampling rates: 15 or 30 seconds

Introduction

6NiTek He Dive Computer User Manual

Warnings

This information has been developed for your safety. Please read

and understand this manual completely before using your NiTek

He dive computer.

Important safety information:

•Before using your NiTek He, it is extremely important that

you read the following points—as well as similar warning

and caution notices that appear throughout this manual.

Failure to do so could result in damage to or loss of

equipment, serious personal injury, or death.

•The NiTek He is designed for use by certified divers who

have maintained a sufficient level of knowledge and skill

proficiency through a combination of formal training,

ongoing study, and experience. It is not intended for use by

persons who lack these qualifications and thus, may not be

able to identify, assess, and manage the risks scuba diving

entails. Use of the NiTek He in conjunction with Enriched

Air Nitrox (EANx) or Trimix requires that divers be trained

and certified for Nitrox diving.

•The NiTek He is not intended for use by commercial or

military divers whose activities may take them beyond the

commonly accepted depth limits for recreational or technical

diving.

•Although the NiTek He is capable of calculating

decompression stop requirements, users must remember that

dives requiring mandatory stage decompression carry

substantially greater risk than dives made well within no-

decompression limits.

•The NiTek He is designed for use by one diver at a time.

Divers should not share a single NiTek He—or any other

dive computer—on the same dive. Additionally, no diver

should lend their NiTek He to anyone else until it calculates

that no measurable residual nitrogen remains after previous

dives and no longer displays the “desaturation time”

indicator while in time mode. Further, no diver should use

their NiTek He for repetitive dives—unless that same

properly functioning NiTek He has accompanied them on all

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