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Summary of Contents for Sensit PMD2
- Page 1 SENSIT PMD2 ® PO RTA B L E M E T H A N E D ET EC TO R For use with combustible gases and optionally available oxygen and toxic gases. INSTRUCTION MANUAL READ AND UNDERSTAND INSTRUCTIONS BEFORE USE.
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Page 3: For Your Safety
FOR YOUR SAFETY NOTICE: ⚠ This safety symbol is used to indicate a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. WARNING: To reduce the risk of ignition of a flammable ⚠ atmosphere, batteries must only be changed and charged in an area known to be nonflammable. -
Page 4: Table Of Contents
CONTENTS FOR YOUR SAFETY ����������������������������������������������������� 3 QUICK START GUIDE �������������������������������������������������� 6 PRODUCT FEATURES: HARDWARE ������������������������������� 7 RECHARGEABLE BATTERY AND CHARGING STATION ......PUMP AND SAMPLING SYSTEM ............. LED BARS ..................... PRODUCT FEATURES: SOFTWARE �������������������������������� 9 WORK DISPLAY OPTIONS ..............LEL DEFINITION ..................ALARMS .................... - Page 5 NOTES ���������������������������������������������������������������������� 30 EQUIPMENT (WEEE) DIRECTIVE ����������������������������������� 31 WARRANTY �������������������������������������������������������������� 32...
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Page 6: Quick Start Guide
Note: If the PMD2 is set to show absolute readings instead of relative, performing an Autozero will not zero the instrument to 0ppm. -
Page 7: Product Features: Hardware
PRODUCT FEATURES: HARDWARE RECHARGEABLE BATTERY AND CHARGING STATION The SENSIT PMD2 comes standard with a rechargeable battery pack. This battery pack is installed in the body of the instrument and secured with a door and two screws. The battery pack can be charged while still installed in the instrument, or when removed, with the included charger. -
Page 8: Led Bars
LED BARS The LED bars on the SENSIT PMD2 display different colors and patterns to alert the operator of various conditions. See the chart below for information on each� COLOR INDICATION Solid Green “Ready” indication. No current alarm condition or failure. -
Page 9: Product Features: Software
%LEL (if enabled) or %VOL at the specified upper limit. By default, this is 2,000PPM. Other options are 5,000PPM, 10,000PPM, or 50,000PPM. If set to 50,000PPM, the PMD2 will not scale to %LEL even if it is enabled, because at the highest LEL Definition, 50,000PPM is equal to 100%LEL. -
Page 10: Lel Definition
The SENSIT PMD2 has audible and visual alarms to warn the operator when hazardous conditions are being sensed. The alarm setpoints specific to the work display and are outlined below. The LED bars on the PMD2 changes color based on alarm conditions. See the following sections for information on each. -
Page 11: Operation And Use
NOTE: SENSIT PMD2. This section of the manual outlines the operation and use of the SENSIT PMD2 by general categories. Due to the many custom options available, and many different applications the instrument can be used in, there is not one comprehensive sequential set of instructions for using the instrument. -
Page 12: The Work Display
However, there are a few specialized test modes for specific applications, such as bar hole testing and tick. See the Quick Menu section for more information on these. To use the SENSIT PMD2 for gas detection, always follow federal, state, municipal, and/or company procedures, then follow these generalized steps below for using the SENSIT PMD2. -
Page 13: Power Off & Battery Charging
POWER OFF & BATTERY CHARGING POWER OFF To power off the SENSIT PMD2, ensure you are in a gas free environment, and then press and hold the button until the power off screen is shown. The instrument will purge for 10 seconds (by default) and then power off. -
Page 14: Quick Menu Test Modes
QUICK MENU TEST MODES Depending on what type work the SENSIT PMD2 is being used for, there are a variety of test modes available that are designed to be used for specific tasks. For example, using Bar hole mode for below-grade leak investigation. -
Page 15: Tick
Assist in pinpointing small combustible gas leaks PURPOSE: TICK mode is a standard feature in the SENSIT PMD2. It gives the operator a ticking, audible tone that gets faster as the gas concentration increases. This assists in pinpointing small combustible gas leaks by allowing the operator to rely on the tone and not have to watch the display of the instrument. -
Page 16: Bar Hole Test
2,048 Records LOG SIZE: BAR HOLE MODE is a default feature in the SENSIT PMD2. It is intended for use when conducting a below grade leak investigation, generally in a hole bored in the ground with a plunger bar or drill. It gives the operator a separate screen from the working display that shows the combustible gas reading in the %VOL scale (both real time and peak reading). -
Page 17: Standby Mode
The SENSIT PMD2 has an optional “standby” mode that allows the operator to put the instrument in a low power state. This can be used if you don’t need to use the instrument for a short amount of time and want to reduce battery consumption and time over fully powering the instrument off and back on again. -
Page 18: Peak Mode
PURPOSE: observed. Work display peak readings in the SENSIT PMD2 is an optional feature that is used to maintain peak readings on the display (in addition to the real-time readings). The most common use case for this is when the instrument is being used in a situation where the display cannot be immediately observed. -
Page 19: User Menu
USER MENU The SENSIT PMD2 has a user-accessible menu that is used for user-level tasks such as performing a manual calibration, viewing logs, etc. A brief description of each menu option is listed below, followed by more details for each in the following section(s). Any options that are not available by default are listed as such (for example, a log for a non-default test mode). -
Page 20: Set Date
If the CAL REQUIRED option is enabled, the SET DATE feature will not be available. NOTE: The SET DATE option allows the user to adjust the clock date saved in the SENSIT PMD2’s internal memory. There are two ways in which the clock date can be automatically updated so that this adjustment is never needed: •... -
Page 21: Set Time
If the CAL REQUIRED option is enabled, the SET TIME feature will not be available. NOTE: The SET TIME option allows the user to adjust the clock time saved in the SENSIT PMD2’s internal memory. Additionally, there are two ways in which the instrument time can be automatically updated so that this adjustment is never needed: •... -
Page 22: Time Zone
TIME ZONE STANDARD FEATURE The TIME ZONE option allows the user to adjust the clock time zone saved in the SENSIT PMD2’s internal memory. The time zone is an offset from GMT/UTC+0. This may only need to be set once, and can be done at the factory per the instrument setup, but may need to be adjusted if: •... -
Page 23: Bump Test
The BUMP TEST feature is a semi-automated response test for all sensors installed in the SENSIT PMD2. This can be done simply by applying gas to the instrument while on the work display, but using the BUMP TEST feature ensures the test is consistently timed and gives the operator a clear pass or fail message for each sensor. -
Page 24: Calibration
(MANUAL CALIBRATION) STANDARD FEATURE The calibration menu in the SENSIT PMD2 contains the options for both the (manual) Auto Calibration feature and manual individual sensor calibrations. It does not contain the option for SMART-CAL, if you are calibrating the instrument using a SMART-CAL 360 calibration station. -
Page 25: Cal Log
LOG SIZE: STANDARD FEATURE The SENSIT PMD2 stores every manual calibration (including manual Auto Calibration) and SMART-CAL 360 calibration in a log on the internal memory of the instrument. Both successful and unsuccessful attempts are recorded. When the log memory is full, the oldest record will be overwritten. -
Page 26: Session Log
2,048 records LOG SIZE: STANDARD FEATURE At any time when using the SENSIT PMD2 while on the work display or when any applicable test modes are enabled, the operator can press and release the button to manually save a record of the data. “DATA SAVED” will be shown on the display when this is done. These records are stored in the session log, in the internal memory of the instrument. -
Page 27: Bar Hole Log
LOG SIZE: OPTIONAL FEATURE Any time a BAR HOLE test is performed using the SENSIT GOLD G3, a log of that test is automatically saved in the internal memory of the instrument. When the log memory is full, the oldest record will be overwritten. -
Page 28: Calibration Next Due
CALIBRATION NEXT DUE STANDARD FEATURE The calibration next due menu displays the next due date for full calibration. This is same screen that displays during startup. Both the next due date and the days remaining until that date will be displayed. TO VIEW THE NEXT DUE DATE(S): From the working display, press and hold the button until USER MENU is shown near... -
Page 29: Bar Hole Purge Threshold
BAR HOLE PURGE THRESHOLD STANDARD FEATURE After a BAR HOLE TEST is performed using the SENSIT PMD2, a built-in purge option lets the user automatically purge the instrument of gas before another test is completed. By default, this purge requires that the reading on-screen reach 0.0% volume to be successful, before another BAR HOLE TEST can be completed. - Page 30 NOTES _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________...
- Page 31 Sensit Technologies LLC has met its national obligations to the EU WEEE Directive. Sensit Technologies LLC has also elected to join WEEE Compliance Schemes in some countries to help manage customer returns at end-of-life.
- Page 32 WARRANTY Your SENSIT PMD2 is warranted to be free from defects in materials and workmanship for a ® period of two years after purchase (excluding calibration and batteries). The circuit boards are warranted for 5 years. If within the warranty period, your instrument should become inoperative from such defects, the unit will be repaired or replaced at our option.
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