PGM-IR SF6 Monitor Portable Gas Monitor for SF6 Gas Instruction 3015-5150 Operation and Maintenance Rev.
SF6 Portable Monitor 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.
SF6 Portable Monitor Table of Contents 1 INTRODUCTION ....................................................................................................................................... 5 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 How to Use This Manual ................................................................................................................. 5 Warning Statements ........................................................................................................................
SF6 Portable Monitor 3.15 Print/Plot Logged Gas Levels ........................................................................................................ 23 3.16 Downloading Stored Data to a Personal Computer ..................................................................... 24 3.17 Importing Saved Data to a Spreadsheet ...................................................................................... 25 4 MAINTENANCE ............................................................................
SF6 Portable Monitor 1 Introduction 1.1 How to Use This Manual This manual provides important information on how to operate and service Bacharach’s Sulfur Hexafluoride (SF6) 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.
SF6 Portable Monitor 1.5 Safety Precautions 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. COMBUSTIBLE/FLAMMABLE GAS WARNING: This is NOT a safety device. Some gases which this instrument can detect may be combustible/flammable.
SF6 Portable Monitor 1.
SF6 Portable Monitor 2 Specifications Product Type ........................ Portable SF6 Gas Monitor Measuring Range................. 0 to 1,000 ppm Warm-Up Time .................... 5 minutes Detector Type ....................... Infrared, Non-Dispersive Sensitivity ............................ 1 ppm Accuracy ............................... ±1 ppm Response Time ..................... 90% of response within 3 seconds; 100% in 5 seconds Temperature Drift ............... 1.
SF6 Portable Monitor 3 Operation 3.1 Front Panel Display and Controls 3.2 Connecting Gas-Sample & Exhaust Lines 3.2.1 Overview A single gas-sample line needs to be run from the SF6 Monitor to the area to be monitored. If desired, an optional exhaust line can be installed to vent SF6 gas away from the monitor. 3.2.
SF6 Portable Monitor 3.2.3 Connecting the Exhaust Line (optional) The optional exhaust line carries the exhausted gas sample away from the monitor. The exhaust line can be up to 50 ft (15.2 m) in length. Ideally this line should terminate outdoors in a location that is not exposed to the elements. Connect the exhaust line to the monitor by firmly pushing the tubing into the Exhaust Port’s push-toconnect (PTC) fitting. (See previous figure.
SF6 Portable Monitor 3.3 Gas Detector Operation CAUTION: Operate the monitor in its horizontal position (handle facing upwards). Tilting the monitor to a vertical position while in operation may cause inaccurate measurements to occur. Turn ON the monitor as follows: 1. Lift up the shield located in front of the handle 2. Press the red power ON/OFF toggle switch. 3. Observe monitor’s firmware version is briefly displayed. 4.
SF6 Portable Monitor 3.4 Time Weighted Average Operation 3.4.1 Overview In addition to displaying the current SF6 level, the monitor can also calculate and display a Time Weighted Average ppm value. This value is available in two formats (8 Hour or Continuous). This provides users with the most appropriate data on their average ppm SF6 exposure in the working environment. TWA operation is selected by using the 2ndUNIT function (page 17).
SF6 Portable Monitor 3.5 Peak Reading Operation In addition to displaying the current SF6 level, the monitor can also be set up to display its peak ppm measurement. The peak reading display is selected by using the 2ndUNIT function (page 17). PURGE 500pk 100ppm SF6 The display above shows that currently the monitor is detecting 100 ppm SF6 and that a peak measurement of 500 ppm has occurred. The peak reading is reset by pressing the ENTER button. 3.
SF6 Portable Monitor 3.8 Battery – Charging and Using IMPORTANT: If you replace the original PGM-IR battery, refer to the installation instructions included in the replacement kit, as the new replacement battery and cable may differ from the original cable and battery. IMPORTANT: Cables and sockets are sized appropriately. As general rules of thumb: • Note the initial orientation of your power cable, and • Never force a connector into a socket. 3.8.
SF6 Portable Monitor 3.9.2 Filling the Purge-Air Bag CAUTION: Fill the purge-air bag in a clean, fresh-air environment that is at the same temperature and humidity as the area being checked for gas. DO NOT fill the bag in an area that is contaminated with SF6 gas. The following message is displayed and an audible alarm is sounded when the monitor’s purge-air bag is empty. This message appears immediately after warm-up, and approximately every 40 minutes during normal operation.
SF6 Portable Monitor EMTYBAG – Press ENTER to manually empty the purge-air bag. Use this function to drain the bag if it becomes contaminated with gas. ALRMLVL – Detected gas level that causes the front panel ALARM (red) light to turn ON and the audible alarm to sound (if AUDALRM function is set to ALARM or ALARM/FAULT). AUDALRM – The internal audible alarm is programmable to function as follows: DRAINING BAG... EDIT ALARM LEVEL 300 ppm AUDIBLE ALARM IS ALARM • OFF – Audible alarm is disabled.
SF6 Portable Monitor SILENCE – Sets the length of time the internal audible alarm is turned OFF when the front panel SILENCE button is pressed. The factory default is 30 seconds. If the cause of the gas-alarm has not been cleared at the end of this time period, the internal audible alarm will reactivate. Use the Keypad to enter the desired time period, and then press ENTER to save that value and return to the previous screen.
SF6 Portable Monitor 3.10 Working with System Faults 3.10.1 Functional Overview If a system malfunction occurs (see Fault Code list, page 19), the front panel FAULT light will flash and the audible alarm, if activated (refer to AUDALRM function page 16), will start beeping. 3.10.2 Clearing / Silencing a Fault Alarm The FAULT light and audible alarm will automatically turn OFF after the cause of the fault has been eliminated.
SF6 Portable Monitor 3.11.4 Fault Codes Fault codes are additive. For example: A fault code of <0003> indicates that both a Box Temperature Fault <0001> and a Bench Temperature Fault <0002> have occurred. Code Name Description of Fault Condition <0001> Box Temperature Fault Enclosure temperature is outside normal range (or IR detector has failed). Check that the monitor is not being subjected to extreme temperatures. Use the DIAG function to check the Box Temperature.
SF6 Portable Monitor 3.11 Working with the Gas Alarm 3.11.1 Gas-Alarm Light If the detected gas level reaches the gas-alarm level as set by the ALRMLVL function, the front panel ALARM (red) light will flash and the audible alarm, if activated (refer to AUDALRM function on page 16), will start beeping. The ALARM light and audible alarm will automatically turn OFF once the detected gas level drops below the gas-alarm level. 3.11.
SF6 Portable Monitor 3.13.3 First Diagnostic Screen 4.20885v <0000> Bench Voltage Fault Code 29.05cD 14.58psi Detector Temperature °C ∗ Pressure Reading 0.00075n Noise <0000> 35.40cB 14.59psi Box Temperature °C Fault Code ∗ Pressure Reading In the First Diagnostic screen, the user can toggle between displaying Bench Voltage / Detector Temperature, and Noise / Box Temperature by pressing the Keypad Right button. Bench Voltage – This is the current peak-to-peak output of the IR detector.
SF6 Portable Monitor 3.14 Working with the P-CHK Function 3.14.1 Overview The P-CHK function (Pressure Check function) (page 17) is useful to a service technician for troubleshooting a flow-fault problem. The monitor will trigger a flow fault if the pressure drop from ambient is less than 0.2 psi during a purge cycle, and 0.5 psi during a measurement cycle. 3.14.
SF6 Portable Monitor 3.15 Print/Plot Logged Gas Levels A printout or plot of the last 200 SF6 ppm measurements can be made by connecting the optional Bacharach printer and printer cable to the monitor as follows (refer to Section 5.1 for printer and cable part numbers): 1. For a printout or plot to be made, the monitor must have been set up to record gas measurements using the LOG INT function (page 16). 2. Interconnect the RS-232 connectors located on the printer and monitor. 3.
SF6 Portable Monitor 3.16 Downloading Stored Data to a Personal Computer Using the monitor’s PC DUMP feature (page 17), the last 200 SF6 gas readings that were stored in memory can be downloaded to a personal computer in ASCII text, comma-delimited format, which can then be imported into most spreadsheet programs for analysis. The following describes how to download data to a computer using Windows® HyperTerminal as the communications program.
SF6 Portable Monitor 4. From the Data Display screen, press both the Keypad Left and Right buttons at the same time to display the first Function Menu screen. Next, use the Keypad buttons to move the arrow (>) until it points to PC-DUMP, and then press the ENTER button to begin the download process. 2ndUNIT PRINT 5. Observe that the SF6 Monitor’s screen goes blank and that HyperTerminal displays the data as it is being received.
SF6 Portable Monitor 4 Maintenance 4.1 Disassembly When servicing the parts inside the SF6 Monitor, disassemble the monitor’s metal chassis as follows: Items Required: • Medium Phillips head screwdriver Procedure: 1. Remove monitor and its battery pack from the soft carrying case. 2. Unplug battery pack from monitor. 3. Remove a total of 10 screws from the locations shown in the illustrations below. 4. Carefully separate the metal chassis.
SF6 Portable Monitor 4.2 Internal Particulate / Hydrophobic Filter Replacement Items Required: • • Replacement filter (P/N 0007-1654) Medium Phillips head screwdriver Procedure: 1. Disassemble the monitor’s metal chassis per Section 4.1. 2. See illustration below and locate the internal particulate / hydrophobic filter. 3. Pull off tubing from both ends of filter and remove filter from instrument. 4. Attach tubing to new filter 5. Reassemble monitor.
SF6 Portable Monitor 4.3 Updating Firmware An RS-232 connector, located on the top panel, is used to update the monitor’s firmware. Reprogramming the instrument with updated firmware should be done by qualified service technicians only using instructions provided by Bacharach.
SF6 Portable Monitor 5 Parts and Service 5.
Headquarters: 621 Hunt Valley Circle, New Kensington, PA 15068-7074 Toll Free: 800-736-4666 • Tel: +1-724-334-5000 • FAX: +1-724-334-5001 Website: www.MyBacharach.com • E-mail: help@MyBacharach.com Printed in U.S.A. ® Registered Trademark of Bacharach Inc.
