Bacharach PGM-IR N2O Operating Manual

Patent 6,590,690

PGM-IR N2O Monitor

Portable Gas Monitor for N2O Gas

Instruction 3015-4787

Operation and Maintenance

Rev. 11 – March 2016

Product Leadership • Training • Service • Reliability

WARRANTY

Bacharach, Inc. warrants to Buyer that at the time of delivery this Product will be free from defects in material and manufacture and will conform substantially to Bacharach Inc.'s applicable specifications. Bacharach's liability and Buyer's remedy under this warranty are limited to the repair or replacement, at Bacharach's option, of this Product or parts thereof returned to Seller at the factory of manufacture and shown to Bacharach Inc.'s reasonable satisfaction to have been defective; provided that writte n notice of the de fect shall have been given by Buyer to Bacharach Inc. within two (2) years after the date of delivery of this Product by Bacharach, Inc.

Bacharach, Inc. warrant s to Buyer that it will convey good title to this P roduct. Bac harach's liability and Buyer's remedy under this warranty of title are limited to the removal of any title defects or, at the election of Bacharach, to the replacement of this Product or parts thereof that are defective in title.

The warranty set forth in paragraph 1 does not apply to parts the Operating Instructions designate as having a limited shelflife or as being expended in normal use (e.g., filters).

THE FOREGOING WARRANTIES ARE EXCLUSIVE A ND ARE GIVEN AND ACCEPTED IN LIEU OF (I) ANY AND ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE: AND (II) ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTRACT OR TORT, WHETHER OR NOT ARISING FROM BACHARACH'S NEGLIGENCE, ACTUAL OR IMP LIED. The remedies of the Buyer shall be limited to those provided herein to the exclusion of any and all other remedies including, without limitation incidental or consequential damages. No agreement varying o r extending t he foregoi ng warrantie s, remedies or this limitation will be binding upon Bacharac h, Inc. unless i n writing, signed by a duly authorized officer of Bacharach.

www.mybacharach.com

Product improvements and enhancements are continuous; therefore the specifications and information contained in this document may change without notice.

Bacharach, Inc. shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

No part of this document m ay be photocopied, reproduced, or translated to another language without the prior written consent of Bacharach, Inc.

and logos referenced herein belong to their respective owners.

is a registered tr ademark of Bac harach, Inc. All other tr ademarks, trade nam es, service marks

ii Instruction 3015-4787 (Rev 11)

N2O Portable Monitor Table of Contents

Table of Contents

1 INTRODUCTION ....................................................................................................................................... 1

1.1 How to Use This Manual ................................................................................................................. 1

1.2 Warning Statements ........................................................................................................................ 1

1.3 Caution Statements ......................................................................................................................... 1

1.4 Hazard Symbols on Monitor ............................................................................................................ 1

1.5 Safety Precautions ........................................................................................................................... 1

1.5.1 Hazardous Area Warning ..................................................................................................... 1

1.5.2 Combustible/Flammable Gas Warning ............................................................................... 2

1.5.3 Explosive Atmosphere .......................................................................................................... 2

1.5.4 Misuse and Modifications to Monitor .................................................................................. 2

1.5.5 Altitude Limit ....................................................................................................................... 2

1.5.6 Cleaning ............................................................................................................................... 2

1.6 Unpacking and Initial Checks ......................................................................................................... 2

1.7 Shipping Precaution ......................................................................................................................... 2

1.8 Features and Capabilities................................................................................................................ 3

1.9 Functional Overview ........................................................................................................................ 3

2 SPECIFICATIONS ..................................................................................................................................... 4

3 OPERATION .............................................................................................................................................. 5

3.1 Front Panel Display and Controls .................................................................................................. 5

3.2 Connecting Gas-Sample and Exhaust Lines .................................................................................. 5

3.2.1 Overview ................................................................................................................................ 5

3.2.2 Connecting the Gas-Sample Line ........................................................................................ 5

3.2.3 Connecting the Exhaust Line (Optional) ............................................................................ 6

3.3 Gas Detector Operation ................................................................................................................... 6

3.4 Time Weighted Average (TWA) Operation ..................................................................................... 8

3.4.1 Overview ................................................................................................................................ 8

3.4.2 Starting a New or Continuing TWA/twa ............................................................................. 8

Peak Reading Operation .................................................................................................................. 9

3.6 Leak Detector Operation ................................................................................................................. 9

3.7 Standby Mode ................................................................................................................................... 9

3.8 Battery – Charging and Using ...................................................................................................... 10

3.8.1 Charging the Battery .......................................................................................................... 10

3.8.2 Using the Battery ............................................................................................................... 10

Display Screens .............................................................................................................................. 10

3.9

3.9.1 Initial Power ON ................................................................................................................. 10

3.9.2 Filling the Purge-Air Bag ................................................................................................... 11

3.9.3 Data Display Screen ........................................................................................................... 11

3.9.4 Function Screens ................................................................................................................. 11

Working with System Faults ......................................................................................................... 14

3.10

3.10.1 Functional Overview........................................................................................................... 14

3.10.2 Clearing / Silencing a Fault Alarm .................................................................................... 14

3.10.3 Viewing the Faults Log ...................................................................................................... 14

3.10.4 Fault Codes ......................................................................................................................... 15

Working with the Gas Alarm ........................................................................................................ 16

3.11

3.11.1 Gas-Alarm Light ................................................................................................................. 16

3.11.2 Silencing a Gas Alarm ........................................................................................................ 16

Clearing the PPM and Faults Data .............................................................................................. 16

3.12

3.13 Working with the DIAG Function ................................................................................................. 16

3.13.1 Overview .............................................................................................................................. 16

3.13.2 Keypad Functions ............................................................................................................... 16

3.13.3 First Diagnostic Screen ...................................................................................................... 17

3.13.4 Second Diagnostic Screen ................................................................................................... 17

Working with the P-CHK Function .............................................................................................. 18

3.14

3.14.1 Overview .............................................................................................................................. 18

Instruction 3015-4787 (Rev 11) iii

Table of Contents N2O Portable Monitor

3.14.2 Keypad Functions ............................................................................................................... 18

3.14.3 Screen Display .................................................................................................................... 18

Print/Plot Logged Gas Levels ........................................................................................................ 19

3.15

3.16 Downloading Stored Data to a Personal Computer ..................................................................... 20

3.17 Importing Saved Data to a Spreadsheet ...................................................................................... 21

4 MAINTENANCE ...................................................................................................................................... 22

4.1 Disassembly.................................................................................................................................... 22

4.2 Internal Particulate / Hydrophobic Filter Replacement ............................................................. 23

4.3 Updating Firmware ....................................................................................................................... 24

5 PARTS AND SERVICE ........................................................................................................................... 25

5.1 Replacement Parts and Optional Items ....................................................................................... 25

5.2 Service Centers .............................................................................................................................. 26

DECLARATION OF CONFORMITY .......................................................................................................... 27

iv Instruction 3015-4787 (Rev 11)

N2O Portable Monitor Introduction

1 Introduction

1.1 How to Use This Manual

This manual provides important information on how to operate and service Bacharach’s Nitrous Oxide

O) Portable Monitor.

To assure operator safety and the proper use of the monitor, please read, understand, and follow the contents of this manual.

If you have a working knowledge of gas monitors, you will find this manual useful as a reference tool. If you are new to the use of gas monitors, you can educate yourself about the principles of gas detection and the proper operation of this device by reading this manual thoroughly.

1.2 Warning Statements

The use of the word WARNING in this manual denotes a potential hazard associated with the use of this equipment. It calls attention to a procedure, practice, or condition, or the like, which if not correctly performed or adhered to, could result in personal injury or death.

1.3 Caution Statements

The use of the word CAUTION in this manual denotes a potential hazard associated with the use of this equipment. It calls attention to a procedure, practice, condition, or the like, which if not correctly performed or adhered to, could result in damage to the equipment.

1.4 Hazard Symbols on Monitor

This symbol indicates the need to consult this operating instruction manual when opening the enclosure.

WARNING: A potential risk exists if the operating instructions are not followed.

This symbol indicates the presence of electric shock hazards when the enclosure is opened.

WARNING: To avoid risk of injury from electric shock, do not open the enclosure when power is

applied.

1.5 Safety Precautions

1.5.1 Hazardous Area Warning

Hazardous Area Warning: This instrument has not been designed to be intrinsically safe for use in areas classified as hazardous locations. For your safety, DO NOT use it in hazardous (classified) locations.

Instruction 3015-4787 (Rev 11) 1

Introduction N2O Portable Monitor

1.5.2 Combustible/Flammable Gas Warning

Combustible/Flammable Gas Warning: This is NOT a safety device. Some gases which this instrument can detect may be combustible/ flammable. When properly configured, this instrument is designed to alarm at concentrations that are lower than the explosive limit of the gas. As such, it is the buyer’s responsibility to initiate an immediate planned response to any gas leaks as soon as they are detected. This equipment should NEVER be used to measure or sample gases at or above their respective lower explosive limits.

1.5.3 Explosive Atmosphere

Explosive Atmosphere: Do not operate this equipment in the presence of flammable liquids, vapors or aerosols. Operation of any electrical equipment in such an environment constitutes a safety hazard.

1.5.4 Misuse and Modifications t o Monitor

The protection provided by the monitor may be impaired if the monitor is used in a manner not specified by these instructions. Changes or modifications to this monitor will void the warranty.

1.5.5 Altitude Limit

6,562 ft (2,000 m)

1.5.6 Cleaning

Clean the outside of the monitor’s case using a dry cloth — DO NOT use soap and water.

1.6 Unpacking and Initial Checks

Your N2O Portable Monitor was carefully inspected at the factory before shipment, and packed so as to be highly resistant to damage while in transport. When you receive the instrument, however, please unpack it promptly and make a visual inspection to make sure that no damage has occurred during shipment. Also check that all the following items have been received.

Item Qty. Part Number

N2O Portable Monitor 1 3015-4790 External Filter Assembly 1 3015-5324 Soft Carrying Case with Shoulder Strap 1 3015-5700 Battery Pack 1 3015-5743 Stainless Steel Probe 1 3015-5326 Instruction Manual 1 3015-4787 Elbow 1 3015-3234 Tubing (3 ft) 1 0003-6182

If damage was found, immediately file a claim with the carrier. If an item is missing, please contact Bacharach’s Service Department for assistance (refer to Section 5.2 Service Centers).

1.7 Shipping Precaution

When shipping the instrument by air, deflate the purge-air bag to prevent it from bursting due to changes in air pressure. Deflate the bag by selecting the EMTYBAG function as described on page 12.

2 Instruction 3015-4787 (Rev 11)

N2O Portable Monitor Introduction

1.8 Features and Capabilities

• Detects, measures, and displays the level of N

O gas in the area being monitored

• Measurement range of 0–1,000 ppm with a resolution of 1 ppm

• Self contained purge-air bag, allowing the monitor to be used in a contaminated atmosphere

• Automatically logs up to 200 gas readings that can be printed/plotted for analysis

• Eliminates false alarms with use of non-dispersive IR source and sample draw system

• Visual and audible gas alarm indictors that are turned ON when the detected gas level exceeds

a user defined trip-point

• Extensive self diagnostics, providing both visual and audible indications when a fault occurs

• Battery powered, providing a minimum of 8 hours of operation

1.9 Functional Overview

The Bacharach Nitrous Oxide (N2O) Portable Monitor is designed to detect, measure, and display the concentration of N self-zeros every 4 minutes using its internal supply of fresh air.

During normal operation the N detected on its front panel LCD. The monitor retains a log of previous readings that can be easily accessed at a later time for analysis.

Front panel indicators and an audible alarm are provided to signal gas alarm and instrument fault conditions. The audible alarm can temporarily be silenced by a push of a button, but will reactivate if the gas level is still above the alarm trip point after a user-defined time period has elapsed.

O gas in the area being monitored. To ensure accurate gas measurements, the monitor

O Monitor displays both the current gas level and the peak gas level

The N

O Monitor requires only minor periodic maintenance such as the occasional replacement of filters.

The monitor incorporates active diagnostics that continuously check the system for proper operation. A front panel indicator is provided to alert an operator of system malfunctions, and fault codes are generated that enable the operator to quickly identify the cause of the fault.

Instruction 3015-4787 (Rev 11) 3

Specifications N2O Portable Monitor

2 Specifications

Product Type ..................... Portable N2O Gas Monitor

Measuring Range ............. 0 to 1,000 ppm

Warm-Up Time ................. 15 minutes

Detector Type.................... Infrared, Non-Dispersive

Sensitivity ......................... 1 ppm

Accuracy ............................ ±1 ppm ±5% of reading from 0 to 100 ppm

and ±10% of reading from 101 to 1000 ppm.

Response Time .................. 90% of response within 3 seconds; 100% in 5 seconds

Temperature Drift ............ 1.5 ppm per °C between purge cycles

System Noise .................... Less than 40 dB(A) at 10 ft (3 m)

Operating Temp................ 32 to 122°F (0 to 50°C)

Ambient Humidity ........... 5 to 90% RH (non-condensing)

Altitude Limit ................... 6,562 ft (2,000 m)

Power ................................. DC power pack, provides a minimum of 8 hours of operation

Power Consumption ......... 15 Watts

Front Panel ....................... 3 Indicator lights:

ON – Green LED flashes during warm-up, and then glows steady during normal operation

FAULT – Yellow LED flashes when there is a system fault ALARM – Red LED flashes when the gas level is above its alarm setting

Audible Alarm .................. Internal audible alarm programmable for any of the following conditions:

OFF, FAULT/ALARM, ALARM

Dimensions (DxLxW) ....... 9” x 14.5” x 5” (229 x 368 x 127 mm)

Weight ............................... Less than 9 lbs (4 kg) including battery

Valid Calibration Period

to Specifications ................ 12 months

Warranty ........................... 2 Years from date of shipment

4 Instruction 3015-4787 (Rev 11)

N2O Portable Monitor Operation

3 Operation

3.1 Front Panel Display and Controls

3.2 Connecting Gas-Sample and Exhaust Lines

3.2.1 Overview

A single gas-sample line needs to be run from the N2O Monitor to the area to be monitored. If desired, an optional exhaust line can be installed to vent N

3.2.2 Connecting the Gas-Sample Line

To connect the gas-sample line to the monitor, simply push the tubing onto the elbow connector and attach the elbow onto the Gas Sample Port on the front of the monitor as shown in the illustration below.

The gas-sample line can be up to 50 ft (15.2 m) in length. All tubing bends should have a radius of no less than 5" to insure proper airflow. If kinks or obstructions occur in the line the monitor may not function properly.

The end of this line should be placed near the potential leak source and positioned to reduce the possibility of mists, aerosols, oil, water, dust, or other contaminates being drawn into the monitor.

An external filter (P/N 3015-5324) should be attached to the end of this line. See figure below.

Instruction 3015-4787 (Rev 11) 5

O gas away from the monitor.

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