Industrial Scientific Tango TX1 Product Manual

Product Manual

The Essential Guide for Safety Teams and Instrument Operators

Part Number: 17154993-1 Edition: 5 August 12, 2014

Revision 7

Contents

General Information .................................................................................................................................................................................................. 1

Introduction ........................................................................................................................................................................................................... 1

Certifications .................................................................................................................................................................................................... 1

Product Overview ................................................................................................................................................................................................. 2

Product Specifications .......................................................................................................................................................................................... 3

Recommended Practices .......................................................................................................................................................................................... 7

Procedures ........................................................................................................................................................................................................... 7

Recommendations ................................................................................................................................................................................................ 8

First Use ............................................................................................................................................................................................................... 9

Wearing the Instrument ........................................................................................................................................................................................ 9

Instrument Basics ................................................................................................................................................................................................... 11

Unpacking the Instrument ................................................................................................................................................................................... 11

Hardware Overview ............................................................................................................................................................................................ 12

Display Overview ................................................................................................................................................................................................ 12

Start-up and Shutdown ....................................................................................................................................................................................... 14

Instrument Preparation and Use ............................................................................................................................................................................. 17

Configuration ...................................................................................................................................................................................................... 17

Operation ............................................................................................................................................................................................................ 25

Zero, Calibration, and Bump Test....................................................................................................................................................................... 28 

Alerts, Warnings, and Alarms ................................................................................................................................................................................. 31

Overview ............................................................................................................................................................................................................. 31

Event Causes and Recommended Actions ........................................................................................................................................................ 32

Service and Warranty ............................................................................................................................................................................................. 37

Service Instructions ............................................................................................................................................................................................ 37

Supplies.......................................................................................................................................................................................................... 37

Three-dimensional Diagrams ......................................................................................................................................................................... 38

Service Tasks ................................................................................................................................................................................................. 40

Warranty Policy .................................................................................................................................................................................................. 44

Limitation of Liability ....................................................................................................................................................................................... 44

Contact Information…………………………………………………………………………………………………………………………………Back Cover

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iii

Tables and Figures

Table 1.2 Warnings and cautionary statements ....................................................................................................................................................... 2

Table 1.3 Sensor-type options .................................................................................................................................................................................. 3

Table 1.4 Instrument specifications .......................................................................................................................................................................... 4

Table 1.5 Sensor specifications ................................................................................................................................................................................ 4

Table 1.6 Battery properties ...................................................................................................................................................................................... 5

Figure 1. Probability of sensor failure by bump test frequency ................................................................................................................................. 9

Table 2.2 Securing the garment or belt clip .............................................................................................................................................................. 9

Table 3.1 Package contents ................................................................................................................................................................................... 11

Table 3.2. Hardware overview ................................................................................................................................................................................ 12

Table 3.3 Display screen indicators and abbreviations .......................................................................................................................................... 12

Table 3.4 Start-up and shutdown ............................................................................................................................................................................ 14

Table 4.1 Configuration instruction ......................................................................................................................................................................... 18

Table 4.2 Operation instruction ............................................................................................................................................................................... 26

Table 4.3 Zero, calibration, and bump test ............................................................................................................................................................. 28

Table 5.1 Overview ................................................................................................................................................................................................. 31 

Table 5.2 Events ..................................................................................................................................................................................................... 31 

Table 5.3 Recommended action by event type ...................................................................................................................................................... 32

Figure 6.1 Disassembled Tango TX1 ..................................................................................................................................................................... 38

Figure 6.2 Disassembled Tango TX1 case top assembly ...................................................................................................................................... 38

Table 6.1 Key for the Tango TX1 diagram .............................................................................................................................................................. 39

Table 6.2 Service tasks ........................................................................................................................................................................................... 40

Table A.1. Sensor cross interference (percent response) ...................................................................................................................................... 45

Table A.2. ATEX and IECEx marking requirements ............................................................................................................................................... 45 

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General Information

Introduction

Certifications

Product Overview

Product Specifications

Introduction

ERTIFICATIONS

Each Tango TX1TM is certified by one or more certifying bodies (CBs). The approved uses for which a unit is certified appear on label(s) affixed to the instrument.

When a new certification is received, it is not retroactive to any unit that does not bear the new marking on its label.

Instrument certifications at the time of this document's publication are noted below (see Table 1.1). To determine for which uses a unit is certified, always refer to the unit's labels.

CBs issue warnings and cautionary statements to notify the safety team and instrument operators of important information, or to restrict instrument use or service (see Table 1.2). Those items listed under the heading, "General", are issued by more than one CB or by Industrial Scientific Corporation (ISC); these apply to each unit regardless of its certifications. Additionally, those items listed under the heading of a specific CB apply to units that bear its markings.

Table 1.1 Certifications

Directive or CB Area Classifications Approved Temperature Range

Americas

CSA Ex ia IIC T4; Class 1; Groups A, B, C, D; T4 -40 °C to +50 °C (-40 °F to +122 °F)

IECEx Ex ia I Ma

Ex ia IIC T4 Ga

INMETRO

UL (C-US) Class I, Groups A, B, C, and D;

Ex ia IIC T4 Ga Ex ia I Ma

Class II, Groups E, F, and G; T4; Exia Class I, Zone 0, AEx ia IIC T4

-40 °C to +50 °C (-40 °F to +122 °F)

-40 °C ≤ T amb ≤ +50 °C (-40 °F ≤ T amb ≤ +122 °F)

-40 °C to +50 °C (-40 °F to +122 °F)

General Information

Table 1.1 Certifications

Directive or CB Area Classifications Approved Temperature Range

Europe and Russia

ATEX Ex ia I Ma

Ex ia IIC T4 Ga Equipment Groups and Categories: I M1 and II 1G

GOST EAC PO Ex ia I X

0 Ex ia IIC T4 X

Asia and Pacific

China Ex Ex ia IIC T4 Ga -20 °C to +50 °C (-4 °F to +122 °F)

KOSHA Ex ia IIC T4 -20°C ≤ Ta ≤ +50°C

Note: See the Appendix for ATEX and IECEx marking requirements.

-40 °C to +50 °C (-40 °F to +122 °F)

Failure to perform certain procedures or note certain conditions may impair the performance of this product. For maximum safety and optimal performance, please read and follow the procedures and conditions listed below.

Table 1.2 Warnings and cautionary statements

For maximum safety and optimal performance, read and understand the manual before operating or servicing the unit. Failure to perform certain procedures or note certain conditions may impair the performance of this product.

For safety reasons, this equipment must be operated and serviced by qualified personnel only.

Substitution of components may impair intrinsic safety and may cause an unsafe condition.

Do not replace battery in hazardous locations. Only certified for use with one Tadiran TL-5955 battery cell.

Obstruction of sensor openings – due to dust, dirt, water, or another cause – can inhibit the unit’s ability to measure gas concentrations accurately. When this occurs, readings may appear lower than the actual gas concentration. Keep sensor openings clean, dry, and properly exposed to the ambient air.

Obstructed, contaminated, or damaged sensor water barriers (or their gaskets) can inhibit the unit’s ability to measure gas concentrations accurately. When this occurs, readings may appear lower than the actual gas concentration. Replace the sensor water barriers and gaskets as needed (see “Service” for instructions).

Service the unit, use its communications port, and change its battery cell only in nonhazardous locations. Not for use in oxygen-enriched atmospheres.

Contact your service representative immediately if you suspect that the unit is working abnormally.

Product Overview

The Tango TX1 is a portable, long-life, single-gas monitor (instrument) for personal protection. It is a diffusion instrument for use in detecting and measuring gas present in open space. Based on the customer’s order, two redundant sensors – sensors of the same type – are factory installed. Four sensor types are available (

see Table 1.3).

Table 1.3 Sensor-type options

Product Overview

Sensor Category Number of sensors

available per instrument

Toxic Two of the same type Carbon Monoxide (CO) only, Hydrogen Suflide (H

Note: See Table 1.5 for sensor specifications.

Sensor type

only, or Sulfur Dioxide ( SO

) only

S) only, Nitrogen Dioxide (NO2 )

When two working sensors are installed, they measure gas simultaneously and independently and the Tango TX1 operates on DualSense

Technology from ISC. If only one sensor is installed or only one installed sensor is

operational, the unit operates as a single-sensor or non-DualSense unit.

If two working sensors are installed, the data log contains a data set for each sensor, plus a third data set. This third data set – labeled "VIRTUAL" or "3" – is created by the DualSense technology. Each VIRTUAL data point is an algorithm-calculated value that is based on sensor 1 and sensor 2 data. The VIRTUAL data are saved to and downloaded from the data log just as data are for the installed sensors. VIRTUAL gas readings are displayed to the instrument operator.

The Tango TX1 multiplane sensor ports each sample air from three directions; this promotes continuous operation if one or two planes become obstructed.

Tango TX1 measures gas at two second intervals, and continuously logs data every ten seconds. The data log can store approximately three months of data for a unit that is on 24 hours a day and has two installed, operational sensors. As the newest data are logged to memory, the oldest data are overwritten. The data log's date- and timestamped event log records and stores event data for 60 alarm events and 30 error events. It also stores the data for up to 250 manual calibrations and bump tests. The data log is downloaded when the unit is docked in a compatible docking station.

The instrument has two modes: configuration and operation. When in configuration mode , a unit's settings can be manually edited. Entry to configuration mode can be password protected. When the instrument is on and is not in configuration mode, it is said to be in operation mode.

The instrument features an always-on option that can be enabled or disabled from configuration mode.

The Tango TX1 has a multisensory (audible, visual, and vibration), multilevel warning and alarm system. Warnings indicate a service need (calibration due) or an operating condition (confidence indicator). Alarms indicate potentially

hazardous gas concentrations or system faults. Alarms can be set to latch. The instrument also features a country-of- origin option that automatically sets the values for the low-gas and high-gas alarm set points for each of five different

countries or regions; each alarm set point value can also be manually edited. An optional AlarmAmp

is available;

when used, the audible alarm volume is increased by approximately 10 decibels (dB).

The user interface consists of two buttons and an LCD (liquid crystal display). The buttons are used to power on and power off the instrument, navigate the operation and configuration loops, perform tasks, and access information. The unit can be set to display select information in English or French.

The unit's suspender clip is intended for attachment to a garment; it is not intended for attachment to a belt or hard

hat. An optional belt clip is available from ISC (see "Service").

The Tango TX1 is iNet ready and compatible with the Tango TX1 iNet DS (docking station).

Product Specifications

Effective use of the Tango TX1 includes knowledge of the instrument's specifications and its sensor and battery specifications (see Tables 1.4 through 1.6).

General Information

Table 1.4 Instrument specifications

Item Description

Display Segment LCD

Keypad buttons Two buttons

Case materials Case top: polycarbonate with a protective rubber over-mold

Case bottom: conductive polycarbonate

Alarms Three strobe-emitting visual alarm LEDs (two red; one blue)

100 dB audible alarm at a distance of 10 cm (3.94"), typical Vibration alarm

Dimensions 99 x 51 x 35 mm (3.9" x 2.0" x 1.4")

Weight 126 g (4.4 oz.), typical

Ingress protection IP66 and IP67

Operating temperature range

Operating humidity range 15 to 95% relative humidity (RH) noncondensing (continuous)

Operating temperatures above 50 °C (122 °F) may cause reduced instrument accuracy. Operating temperatures below -20 °C (-4 °F) may cause reduced

instrument accuracy and affect display and alarm performance.

-20 °C to +50 °C (-4 °F to +122 °F)

Table 1.5 Sensor specifications

Sensor

Measurement

Category

Gas Names

bbreviation

Sensor technology

Toxic

Carbon Monoxide with H2 low interference

CO/

Low

Carbon Monoxide CO E 0-1000

Hydrogen Sulfide H2S E 0-200

Nitrogen Dioxide NO2 E 0-150

range

(% vol, % LEL, or ppm) degrees (°) (%)

0-1000

ppm

Sensor properties Accuracy Response

time

(typical)

ture and

Measurement

resolution

Sensor

temperature

range

1 ppm -20 to +50 °C

(-4 to +122 °F)

range

t time and

temperature of

calibration

(%) (%)

Sensor RH

15-95 ± 5% (0-300

ppm)

Over full sensor

± 15% 9 s 18 s

tempe

RH ranges

T50 T90

Seconds (s)

± 15% (301- 1000 ppm)

1 ppm -40 to +50 °C

15–95 ± 5 ± 15 12 s 48 s

(-40 to +122 °F)

0.1 ppm -40 to +50 °C

15–95 ± 5 ± 15 7 s 14 s

(-40 to +122 °F)

0.1 ppm -40 to +50 °C

15–95 ± 10 ± 15 10 s 30 s

(-40 to +122 °F)

Sulfur Dioxide SO2 E 0 to 150

ppm

0.1 ppm -20 to +50 °C (-4 to +122 °F)

15 – 95 ± 10 ± 15 20 s 80 s

Product Overview

"E" stands for electrochemical.

ppm stands for parts per million; vol for volume; and LEL for lower explosive limit. Note: See the Appendix for

supplemental information about sensor types and gases.

Table 1.6 Battery properties

Battery Pack Properties

3.6 V Primary Lithium-thionyl chloride (Li-SOCl2), 1.5AH, 2/3AA

* See "Service" for instructions. Some restrictions may apply (see "Introduction", Table 1.2 Warnings and cautionary statements).

Replaceable* Nonrechargeable Run time of 36 months depending on operating conditions; the amount of time the unit is in

alarm; and the enablement of unit's confidence indicator, bump test due alert, or calibration due alert.

Recommended Practices

Introduction

Procedures

First Use

Wearing the Instrument

Introduction

Gas detection instruments are potentially life-saving devices. When completed regularly, the procedures defined below help to maintain proper instrument functionality and enhance operator safety.

Procedures

Configuration. The configuration process allows qualified personnel to review and adjust a unit's settings. Self-test. The self-test verifies the functionality of the instrument’s memory operations, battery, and each alarm

indicator (audible, visual, and vibration).

Note: a self-test does not verify sensor functionality (see “Bump Test”) or instrument accuracy (see “Calibration”).

Bump Test (or "functional test"). Bump testing checks for sensor and alarm functionality. The installed sensors are

briefly exposed to an expected concentration of calibration gas that is greater than the sensors’ low alarm set point. When one or more sensors “pass” the test, they are “functional” and the unit will alarm. Each sensor’s “pass” or “fail” result is indicated on the unit’s display.

Note: a bump test does not measure for accuracy (see “Calibration”).

Zero. Zeroing sets each installed sensor to recognize the ambient air as clean air. If the ambient air is not truly clean

air, any gases that are present and relevant to the installed sensor types will be measured and displayed as zero. Readings will be inaccurate until the unit is correctly zeroed in truly fresh air or with a zero air cylinder.

Calibration. All sensors gradually degrade over time. This diminishes a sensor's ability to measure gas

concentrations accurately; however, regular calibrations adjust the instrument to compensate for this decline in sensitivity. During calibration, the installed sensors are exposed to an expected concentration of calibration gas and, when needed, the instrument will self-adjust to ensure the accurate measurement and display of gas concentration values.

Note: when a sensor has degraded beyond an acceptable level, no further adjustment is possible and the sensor will no longer pass

calibration.

Recommended Practices

Peak Readings. The instrument stores the highest detected gas readings, the "peak readings" or "peaks". Bump

testing and calibration will often register new peak readings. Therefore, the clearing of the peak readings should

follow each calibration. The instrument operator may also wish to clear the peak readings after a bump test, before a

change in location, or after an alarm is addressed and cleared.

Note: The peak readings and the data log readings are stored independently of one another; therefore, clearing the peak reading does not

affect the data log. Powering the instrument off or changing its battery does not affect the peak reading. These checks and balances help promote operator safety, and serve to contain the peak readings in a "black-box" manner. In the event of a gas-related incident, this black-box record can be useful to the safety team or a prospective investigator.

Recommendations

Industrial Scientific Corporation (ISC) minimum frequency recommendations for each procedure are summarized in the table below. These recommendations are based on field data, safe work procedures, industry best practices, and regulatory standards to help ensure worker safety. Industrial Scientific is not responsible for setting safety practices and policies.

ISC recommendations include a daily bump test for any ISC instrument that is not operating on DualSense

technology. This includes the Tango TX1 when it is operating with only one working sensor.

When two redundant, working sensors are installed in the Tango TX1, the instrument is operating on DualSense and

the probability of sensor failure – compared with a single-sensor instrument – is diminished regardless of bump test frequency (see Figure 1). The frequency of bump testing for DualSense instruments, between monthly calibrations, is best determined by a company's safety policies. These policies may be affected by the directives and recommendations of regulatory groups, environmental conditions, operating conditions, instrument use patterns and exposure to gas, and other factors.

Table 2.1 ISC recommended practices

Procedure Recommended minimum frequency

DualSense instruments

Configuration Before first use, when there is a change in the installed sensor type, and as otherwise needed.

Calibration

Bump test

Self-test

Non-DualSense instruments

Configuration Before first use and as needed thereafter.

Calibration

Bump test

Self-test

Between regular calibrations, ISC also recommends a calibration be performed immediately following each of these incidences: the unit falls, is dropped, or experiences another significant impact; is exposed to water; fails a bump test; or has been repeatedly exposed to an over-range (positive or negative) gas concentration. A calibration is also recommended after the installation of a new (or replacement) sensor.

If conditions do not permit daily bump testing, the procedure may be done less frequently based on company safety policy.

The Tango TX1 self-test is performed automatically during the start-up process. It can be user-initiated from operation mode.

Note: The use of calibration gases not provided by ISC may void product warranties and limit potential liability claims.

Before first use and monthly thereafter.

As desired between monthly calibrations.

Prior to each day’s use for a unit that is always on or is left on.

Before first use and monthly thereafter.

Prior to each day’s use.

As desired between daily bump tests.

1 in 1

1 in 10

1 in 100

1 in 1,000

use-days

1 in 10,000

1 in 100,000

First Use

Average number of failures per instrument

1 in 1,000,000

0 5 10 15 20 25 30

Bump test interval (days)

Non-DualSense instruments

DualSense instruments

Figure 1. Probability of sensor failure by bump test frequency

First Use

To prepare the Tango TX1 for first use, qualified personnel should configure and calibrate the unit.

Wearing the Instrument

Based on the U.S. Department of Labor's Occupational Safety and Health Administration (OSHA) definition of the breathing zone, it is recommended that the unit be worn within a 25.4 cm (10") radius of the nose and mouth. Refer to OSHA and to other agencies or groups as needed for additional information.

ISC also recommends that the unit be worn within the instrument operator's sight line.

The instrument operator may wear the unit with its factory-installed suspender clip or with the optional belt clip. The

suspender clip is solely intended for attachment to a garment. The belt clip may be attached to a hard hat, belt, or

garment.

The clips should be securely fastened and attached in a manner that ensures the unit's sensor portals are fully exposed to the air. No part of the unit should be covered by any garment, part of a garment, or other item that would restrict the flow of air to the sensors or impair the operator's access to the audible, visual, or vibration alarms.

Attach the desired clip as shown below.

Table 2.2 Securing the garment or belt clip

Suspender clip

Lift the clip cover.

Position the garment between the clip's upper and lower teeth. Press down on the clip cover to secure the clip in place.

Recommended Practices

Table 2.2 Securing the garment or belt clip

Belt clip

Position the hard hat or garment between the clip and clip back.

Slide the clip to secure it in place. The instrument can be worn right side up or upside down.

Instrument Basics

Unpacking the Instrument

Hardware Overview

Display Overview

Start-up and Shutdown

Unpacking the Instrument

The items that are shipped with the unit are listed below (see Table 3.1); each item should be accounted for in the unpacking process.

Table 3.1 Package contents

Quantity Item Notes

1 as ordered Tango TX1 Part number 18109075

1 Suspender clip (installed) Optional belt clip sold separately.

1 Calibration cup

1 Calibration and bump test tubing 60.96 cm (2 ') of urethane tubing; 4.762 mm (3/16 ”) ID

1 Reference Guide Companion to the Tango TX1 Product Manual 1 Final Inspection & Test Report and

Declaration of Conformity

At the time of shipment.

Note: If any item is missing or appears to have been damaged, contact ISC (see "Contact Information") or a local distributor of ISC products.

—

The Final Inspection & Test Report includes these values:

Unit setup date Unit part number Unit serial number For each sensor:

 Part number  Serial number  Type  Alarm settings  Span information

Instrument Basics

Hardware Overview

The instrument's main hardware components are identified below (see table 3.2).

Table 3.2. Hardware overview

Tango TX1

Visual alarm (or alert) indicator

IrDA (infrared data exchange)

window

Sensor port 1 and dust filter Sensor port 2 and dust filter

Case top

On-off-mode button

Case bottom

Enter button

LCD Audible alarm (or alert) indicator and

Garment clip (closed)

Garment clip (open)

Visual alarm (or alert) indicators

dust filter

Display Overview

The visual test screen shown below contains all the indicators that can appear on the display screen. Each indicator

is stationary and appears only when relevant to the task being performed. For example, in the gas-monitoring screen shown below (numeric display), the following apply: the check mark indicates there are no sensor faults; the sensortype icon indicates that H2S sensors are installed; the numeric display shows a gas reading of 5.1 ppm.

Table 3.3 Display screen indicators and abbreviations

Display screens

Visual test screen

Status indicators

only

Two sensors are installed and neither is in fault.

Two sensors are installed and one is in fault; a in fault.

Gas-monitoring screen (numeric display)

Gas-monitoring screen (text display)

sensor location icon also displays to indicate which sensor is

+ 36 hidden pages

Industrial Scientific Tango TX1 Product Manual

Specifications and Main Features

Frequently Asked Questions

User Manual