Sensidyne SensAlarm Plus User manual

Universal Gas Monitoring System
User Manual
Document No. 360-0126-01
(Revision D)
Sensidyne, LP
1000 112TH Circle N, Suite 100
St. Petersburg, Florida 33716 USA
800-451-9444 • [phone] • [phone] [fax]
web: www.sensidyne.com • e-mail: [email protected]

SensAlarm Plus – Universal Gas Monitoring System User Manual
Page 2 Document No. 360-0126-01 (Rev. D)
How to Use This Manual
This manual is a basic guide for using the SensAlarm Plus Universal Gas Monitoring System. It contains
information on SensAlarm Plus components, sensor types, and the Normal Operation Display. It also shows
how to mount and wire the Monitor, initial setup, zero, and span calibration. In addition, it covers commonly
used operations regarding alarms, relays, and Test-On-Demand.
Important notes, cautions, and warnings are set off from the other text as follows:
NOTE
This is an important note
MENU MAP and MENU FUNCTIONS
The entire menu structure is outlined in Section 5.2, Menu Structure, with descriptions of each function in
Section 3, Operating Functions and Section 4, Alarms and Relays.
The SensAlarm Plus Gas Monitor is menu driven, so is important to become familiar with how the four magnetic
switch controls are used to navigate through the menus, select specific menu items, and change the many
different parameters available to the user. The Basic Menu Controls Guide is below.
Basic Menu Controls Guide
Selecting OK from the Normal Operation Display enters the SensAlarm Plus menu system. Within the menu
system OK is to 1) to select an item from a list of menu items, 2) to confirm that an action has occurred (e.g.
changing an alarm from “Non-Latching” to “Latching”), or 3) to save a new value that has been entered (e.g., a
netion for configded. It is similar in use to an ESC key on a computer keyboard.
The Ÿcontrol arrow is used to move UP a list of menu items.
The źcontrol arrow is used to move DOWN a list of menu items.
The Ÿand źcontrol arrows also are used to increase/decrease numeric values of certain menu items (e.g.
alarm Setpoint, cal gas concentration, etc.).
PLEASE NOTE
This manual contains illustrations of those display screen menu options generally used in the normal course of
operation of the SensAlarm Plus Monitor. The Monitor may also display a variety of additional warning or
cautionary screens. These additional display screens are instructive and self-explanatory in nature. The user
should read each display screen and perform the recommended actions as required.
Important
Factory Default Settings
Each Monitor is shipped from the factory with default settings. These include default settings for alarms,
warnings and relays. The default settings can be found in Section 12 – Appendix G: Configuration
Reference (page 113). Please note that boxes filled with an “X” indicate a default setting for that particular
alarm, warning, or relay. Additional blank copies of the Configuration Reference form can be found in Section
12. These blank forms are intended for use by the user to document user-defined changes from the factory
default settings.

User Manual SensAlarm Plus – Universal Gas Monitoring System
Document No. 360-0126-01 (Rev. D) Page 3
Table of Contents
How to Use This Manual.................................................................................................................................2
Basic Menu Controls Guide............................................................................................................................2
Packing List and Notices.................................................................................................................................7
WARNINGS....................................................................................................................................................8
1 INTRODUCTION .........................................................................................................10
1.1 Product Versions.................................................................................................................................10
1.2 Standard Features...............................................................................................................................11
1.2.1 Universal Sensor Capability........................................................................................................11
1.2.2 Large Displays for Ease of Operation.........................................................................................11
1.2.3 Non Intrusive Operation..............................................................................................................11
1.2.4 Transportable Calibration ...........................................................................................................11
1.2.5 Predictive Failure........................................................................................................................11
1.2.6 AC & External DC Power Capability...........................................................................................11
1.3 Factory Installed Options.....................................................................................................................12
1.3.1 Test-On-Demand™ Gas Generator............................................................................................12
1.3.2 Remote Sensor Operation..........................................................................................................12
1.3.3 Communication Options .............................................................................................................12
1.3.4 Dual Strobes...............................................................................................................................12
1.3.5 Internal 30 Minute Battery Backup..............................................................................................12
1.4 SensAlarm Plus Components .............................................................................................................13
1.4.1 Sensor Interface Assembly.........................................................................................................13
1.4.2 SensAlert Plus Sensor................................................................................................................13
1.4.3 Test-on-Demand™ .....................................................................................................................13
1.4.4 Sensor Holder.............................................................................................................................13
1.4.5 Rainshield...................................................................................................................................13
1.4.6 Calibration Plug Assembly..........................................................................................................13
1.4.7 Liquid Crystal Display and Magnetic Controls............................................................................15
1.4.8 Sensor Types..............................................................................................................................16
1.4.9 SensAlarm Plus Housing............................................................................................................17
1.4.10 SensAlarm Plus Power Available LED (3)..................................................................................17
1.4.11 Red Strobe..................................................................................................................................17
1.4.12 Amber Strobe (option) ................................................................................................................18
1.4.13 Sounder ......................................................................................................................................18
A 95dB Piezo horn is located on the bottom right side of the enclosure. The sounder activates during
alarm and warning conditions. The sounder can be silenced with a red pushbutton switch. The alarm reset
conforms to ISA alarm sequence 3A.........................................................................................................18
1.4.14 Reset Button...............................................................................................................................18
1.5 Electronics Modules ............................................................................................................................19
1.5.1 Display PCA................................................................................................................................20
1.5.2 LED display (4-digit) PCA...........................................................................................................20
1.5.3 Power Assembly TB1, TB2.........................................................................................................20
1.5.4 Barrier PCA.................................................................................................................................21
1.5.5 AC Power supply ........................................................................................................................21
1.5.6 Main PCA....................................................................................................................................21
2 INSTALLATION...........................................................................................................22
2.1 Location...............................................................................................................................................22

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Page 4 Document No. 360-0126-01 (Rev. D)
2.2 Fire or other Code Compliance Issues and annunciation requirements.............................................22
2.3 Monitor Installation..............................................................................................................................22
2.3.1 AC Power....................................................................................................................................24
2.3.2 DC Power ...................................................................................................................................25
2.3.3 Wiring Procedure (4-20 mA Output)...........................................................................................25
2.3.4 Wiring Procedure (Relay Outputs) .............................................................................................25
2.4 Start Up...............................................................................................................................................26
3 OPERATING FUNCTIONS..........................................................................................27
3.1 Calibration...........................................................................................................................................27
3.1.1 Zeroing the Monitor ....................................................................................................................28
3.1.2 Span Calibration.........................................................................................................................29
3.2 Sensor Adjustment..............................................................................................................................33
3.2.1 Select Calibration Gas................................................................................................................34
3.2.2 Selecting a K-Factor...................................................................................................................35
3.2.3 Selecting a Custom K-Factor......................................................................................................37
3.3 ToD Mode Adjustment ........................................................................................................................38
3.3.1 Auto Mode, Enable/Disable........................................................................................................39
3.3.2 ToD Auto Mode, Test Date/Time................................................................................................40
3.3.3 ToD Auto Mode, Days Between Tests.......................................................................................40
3.3.4 ToD Mode Adjustment, Cell Intensity.........................................................................................41
3.3.5 ToD Mode Adjustment, Output Indicators..................................................................................42
4 ALARMS, FAULTS AND RELAYS.............................................................................43
4.1 Alarms.................................................................................................................................................44
4.1.1 Add a Relay................................................................................................................................45
4.1.2 Delete a Relay............................................................................................................................46
4.1.3 Enable or Disable an Alarm........................................................................................................46
4.1.4 Ascending or Descending alarm threshold.................................................................................47
4.1.5 Alarm Setpoint............................................................................................................................47
4.1.6 Release Offset............................................................................................................................48
4.1.7 TWA Average Time Adjustment.................................................................................................48
4.2 Fault Functions....................................................................................................................................49
4.2.1 Add a Relay................................................................................................................................50
4.2.2 Delete a Relay............................................................................................................................50
4.2.3 Enable or Disable a Fault...........................................................................................................51
4.2.4 Adjust Fault Current....................................................................................................................51
4.2.5 Adjust Fault Current Delay .........................................................................................................51
4.3 Warn Current – Relay 5 .....................................................................................................................52
4.3.1 Warn Current-Relay 5, Latching/Non-Latching ..........................................................................52
4.3.2 Warn Current – Relay 5, Enable or Disable...............................................................................53
4.3.3 Low Current Time Adjust............................................................................................................53
4.4 Relay 1-Fail, Relay 2, Relay 3, Relay 4 ..............................................................................................54
4.4.1 Latching or Non-Latching ...........................................................................................................54
4.4.2 Norm Energized/ Norm De-Energized........................................................................................54
4.4.3 Time Delay..................................................................................................................................55
4.5 Horn – Relay 6 ...................................................................................................................................56
4.5.1 Latching or Non-Latching ...........................................................................................................56
4.5.2 Timeout (Enabled/Disabled).......................................................................................................56
4.5.3 Time Delay..................................................................................................................................57
4.5.4 Timeout Delay.............................................................................................................................57

User Manual SensAlarm Plus – Universal Gas Monitoring System
Document No. 360-0126-01 (Rev. D) Page 5
4.6 Red Strobe - Relay7, Amber Strobe-Relay8.......................................................................................58
4.6.1 Latching or Non-Latching............................................................................................................58
4.6.2 Norm Energized/ Norm De-Energized........................................................................................59
4.6.3 Time Delay..................................................................................................................................59
5 MENU STRUCTURE & MAP.......................................................................................60
Basic Guide to Using the Menu System.......................................................................................................60
SENSALARM
PLUS
Menu Structure................................................................................................................60
5.1 Main Menu Screen ..............................................................................................................................60
5.2 Main Menu (screens)...........................................................................................................................87
As shown on the example display to the right, the top level (main) menu allows the selection of several
submenus, documented below. Selecting OK brings up the submenus...................................................87
5.2.1 Calibration Mode........................................................................................................................87
5.2.1.1 Zero Monitor......................................................................................................................................... 87
5.2.1.2 Calibrate............................................................................................................................................... 87
5.2.1.3 Set Cal Gas Concentration................................................................................................................... 88
5.2.2 Maintenance Mode .....................................................................................................................88
5.2.3 Data Review................................................................................................................................88
5.2.3.1 Calibration Info..................................................................................................................................... 89
5.2.3.2 Sensor Status....................................................................................................................................... 89
5.2.3.3 Sensor Data ......................................................................................................................................... 89
5.2.3.4 Active Alarms/Faults............................................................................................................................. 89
5.2.3.5 Fault Currents....................................................................................................................................... 90
5.2.3.6 Fault Current Delay.............................................................................................................................. 90
5.2.3.7 Rly Alm Fault Config............................................................................................................................. 90
5.2.3.8 ToD Review.......................................................................................................................................... 91
5.2.3.9 Communication Review........................................................................................................................ 91
5.2.3.10 Firmware Review.................................................................................................................................. 91
5.2.4 Test-On-Demand (Main Menu)...................................................................................................92
5.2.5 System Configuration .................................................................................................................92
5.2.5.1 Self Test92
5.2.5.2 Alarm Settings...................................................................................................................................... 93
5.2.5.3 4/20 mA Adjustment............................................................................................................................. 98
5.2.5.4 Adjust Date/Time.................................................................................................................................. 99
5.2.5.5 Communication Setup.......................................................................................................................... 99
5.2.5.6 ToD Mode Adjustment........................................................................................................................ 100
5.2.5.7 Sensor Adjustment............................................................................................................................. 100
5.2.5.8 Set Password..................................................................................................................................... 101
5.2.5.9 Reset Defaults.................................................................................................................................... 102
5.2.5.10 Set Monitor Tag.................................................................................................................................. 103
6 PRODUCT NUMBERS & PARTS LIST.....................................................................104
6.1 Monitors............................................................................................................................................104
6.2 Sensors.............................................................................................................................................104
6.3 Options & Accessories...................................................................................................................104
6.4 Spare Parts.......................................................................................................................................104
6.5 Calibration Equipment....................................................................................................................105
6.6 Zero Calibration Gases...................................................................................................................105
6.7 Calibration Gases1...........................................................................................................................105
7 APPENDIX A: DECLARATION OF CONFORMITY..................................................107

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8 APPENDIX B: SPECIFICATIONS.............................................................................108
9 APPENDIX C: TROUBLESHOOTING GUIDE..........................................................109
10 APPENDIX D: TUV CERTIFICATION.......................................................................111
11 APPENDIX F: RETURNED MATERIAL AUTHORIZATION.....................................112
12 APPENDIX G: CONFIGURATION REFERENCE.....................................................113
13 APPENDIX H: MOUNTING DRAWINGS ..................................................................119

User Manual SensAlarm Plus – Universal Gas Monitoring System
Document No. 360-0126-01 (Rev. D) Page 7
Packing List and Notices
You should have the following items:
SensAlarm Plus, Universal Gas Monitoring System User Manual
A SensAlert Plus Sensor Datasheet (1 – 4 pages)
A reversible black screwdriver with magnetic end
A gray PVC Sensor Shield
User Manual (this document)
SensAlert Plus Sensor is sold separately.
Please contact factory for a complete list of available sensors.
Verify that you have received all of the items listed above. If you have any questions or need assistance,
contact your Sensidyne Representative, or call 800-451-9444 or [phone]
PROPRIETARY NOTICE
This manual was prepared by Sensidyne, LP exclusively for the owners of the SensAlarm Plus Universal Gas
Monitoring System. The material within this manual is the proprietary information of Sensidyne, LP and is to be
used only to understand and operate the instrument. By receiving this document, the recipient agrees that
neither this document nor the information disclosed within nor any part shall be reproduced or transferred,
physically, electronically or in any form or used or disclosed to others for manufacturing or for any other
purpose except as specifically authorized in writing by Sensidyne, LP.
COPYRIGHT NOTICE
© 2009, Sensidyne, LP, all rights reserved. Information contained in this document is protected by copyright.
No part of this document may be photocopied, reproduced, or translated to another program or system without
prior written authorization from Sensidyne, LP
TRADEMARK NOTICE
Sensidyne, the Sensidyne logo, SensAlert, SensAlarm, SensAlarm Plus, the SensAlert & SensAlert Plus logos,
ToD & Test-on-Demand are registered trademarks of Sensidyne, LP. The trademarks and service marks of
Sensidyne, LP are protected through use and registration in the United States of America.
SOFTWARE LICENSE
The software included with the SensAlarm Plus Gas Monitor is the property of Sensidyne, LP and shall remain
the property of Sensidyne, LP in perpetuity. The software is protected by U.S. and international copyright laws
and is licensed for specific use with the SensAlarm Plus Universal Gas Monitoring System. The user may not
reverse-engineer, disassemble, decompile, or make any attempt to discover the source code of the software.
The software may not be translated, copied, merged or modified in any way. The user may not sublicense,
rent, or lease any portion of the software. The right to use the software terminates automatically if any part of
this license is violated. DISCLAIMER
SENSIDYNE, LP ASSUMES NO RESPONSIBILITY WHATSOEVER, TO ANY PARTY WHOSOEVER, FOR
ANY PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH CAUSED BY OR RESULTING FROM, IN
WHOLE, OR IN PART, THE IMPROPER USE, INSTALLATION, OR STORAGE OF THIS PRODUCT BY THE
USER, PERSON, FIRM, ENTITY, CORPORATION OR PARTY NOT ADHERING TO THE INSTRUCTIONS
AND WARNINGS OR NOT ADHERING TO ALL FEDERAL, STATE, AND LOCAL ENVIRONMENTAL AND
OCCUPATIONAL HEALTH AND SAFETY LAWS AND REGULATIONS.
THE SELLER SHALL NOT BE LIABLE FOR DIRECT, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR
OTHER DAMAGES RESULTING FROM THE SALE AND USE OF ANY GOODS AND SELLER’S LIABILITY
HEREUNDER SHALL BE LIMITED TO REPAIR OR REPLACEMENT OF ANY GOODS FOUND DEFECTIVE.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR USE OR FOR
A PARTICULAR PURPOSE WHICH ARE EXPRESSLY DISCLAIMED.

SensAlarm Plus – Universal Gas Monitoring System User Manual
Page 8 Document No. 360-0126-01 (Rev. D)
WARNINGS
READ AND UNDERSTAND ALL WARNINGS BEFORE USE
Read and understand ALL warnings before using this product. Failure to read, understand, and comply
with ALL warnings could result in property damage, severe personal injury, or death.
Product is calibrated prior to shipment, however, this product must be calibrated prior to initial use. Calibrate at
regular intervals in accordance with the User Manual. Failure to calibrate in accordance with the instructions in
this manual and at the specified intervals may result in the product not operating properly or malfunctioning.
Read and understand ALL applicable federal, state, and local environmental health and safety laws and
regulations, including OSHA. Ensure complete compliance with ALL applicable laws and regulations before
and during use of this product.
The user/installer must understand the Hazardous Area Protection Concepts and Area Classifications
applicable to their operation.
UNDER NO CIRCUMSTANCES should this product be used except by qualified, trained, technically
competent personnel and not until the warnings, User Manual, labels, and other literature accompanying this
product have been read and understood.
ALWAYS wash your hands thoroughly after handling, calibrating, or servicing this product.
ALWAYS wear eye protection (such as safety goggles), face shield, chemical resistant gloves and chemical
resistant clothing when handling chemicals, or calibration sources.
DO NOT get chemicals, gases, fumes, or vapors in your eyes or on your skin, as they may cause severe burns
to skin and eyes. If chemicals, gases, fumes, or vapors get in your eyes or on your skin, wash the affected area
with copious amounts of water and call a physician immediately.
ALWAYS avoid any contact of acids with your skin or eyes. Seek immediate medical attention for any contact
with acids.
ALWAYS calibrate in a well ventilated area. Adequate precautions should be taken to prevent the buildup of
ANY calibration sources or vapors. Avoid breathing ANY calibration fumes or vapors as they may be
hazardous to your health.
ALWAYS dispose of chemicals and calibration sources in compliance with ALL applicable safety laws,
regulations, and guidelines for proper disposal. Failure to do so may result in environmental damage, property
damage, personal injury or death.
ALWAYS close ALL containers of chemicals used with this product after use.
ALWAYS ensure that any compressed calibration substance sources are empty prior to disposal, should they
be used.
ALWAYS use clean, dry, inert materials to contain and transfer substances used for calibration.
DO NOT remove, cover, or alter any label or tag on this product, its accessories, or related products.
DO NOT operate this product should it malfunction or require repair. Operation of a malfunctioning product or a
product requiring repair may result in serious personal injury or death.
DO NOT attempt to repair or modify instrument, except as specified in the Operation & Service Manual. If
repair is needed, contact the Sensidyne Service Dept. to arrange for a Returned Material Authorization (RMA)
(See Section 0 for details).
ALWAYS operate this product in its intended manner. Failure to do so may result in serious personal injury or
death.
Users should refer to MSDS and suppliers’ instructions for proper safety instructions and handling for any
chemicals used with this equipment.

User Manual SensAlarm Plus – Universal Gas Monitoring System
Document No. 360-0126-01 (Rev. D) Page 9
WARNINGS
READ AND UNDERSTAND ALL WARNINGS BEFORE USE
Use ONLY genuine SENSIDYNE® replacement parts when performing any maintenance procedures
described in this manual. Failure to do so may seriously impair instrument performance. Repair or alteration of
the product beyond the scope of these maintenance instructions, or by anyone other than an authorized
SENSIDYNE® service technician, could cause the product to fail to perform as designed and persons who rely
on this product for their safety could sustain severe personal injury or death.
The SensAlarm Plus Universal Gas Monitoring System is an ambient air monitoring device. Restricting the
access of ambient air to the sensor may result in less than optimal monitoring performance.
Prolonged exposure to excessively high concentrations of Toxic gas may cause the sensor to produce
erroneous readings.
Always make use of a Rainshield to protect against variations caused by environmental conditions. Note that
reactive Gases such as ETO, HF, HCN, NO2, SO2, HCl, ClO2, or Cl2are not compatible with the Rainshield.
Perform tests only within the specified operating ranges.
Sudden changes in pressure may cause temporary fluctuations in the sensor reading.
Sensors should be hot-swapped only when the Normal Operation Mode screen is displayed.
Caution - Failure to read and understand the User Manual may result in preventable severe
personal injury or death.
Caution, risk of electric shock if front cover is opened.
Important Calibration Considerations:
Verify the concentration of calibration gas before making calibration adjustments.
The concentration can be altered by:
Deterioration of the gas concentration during storage.
Interaction of the calibration gas with materials used to contain and transfer the gas (tubing), as for
example, absorption onto and permeation through certain plastics, polymers and elastomers.
Interaction of the calibration gas with ambient contaminants, such as water.
If further translation is required, please contact the Sensidyne EU Authorized Representative (see Back Cover
for contact information).

SensAlarm Plus – Universal Gas Monitoring System User Manual
Page 10 Document No. 360-0126-01 (Rev. D)
1Introduction
This manual provides specific information concerning the installation, operation, calibration, and
maintenance of the SensAlarm Plus Universal Gas Monitoring System. SensAlarm Plus is capable
of detecting the presence of potentially hazardous concentrations of Combustible vapors and gases,
Toxic gases and Oxygen deficiency.
1.1 Product Versions
The SensAlarm Plus Gas Monitor is offered in four versions.
820-0301-01
Single Strobe (Red, left position)
820-0301-02
Single Strobe and Battery Backup
820-0301-03
Dual Strobe (Amber on left)
820-0301-04
Dual Strobe and Battery Backup
A standard SensAlarm Plus Monitor consists of electronics
modules (PCAs) in a fiberglass enclosure, a sensor interface
assembly, and a plug-in sensor specifically designed to detect a
target gas or vapor.
A large format 4-Digit LED display provides readout for gas
concentration. A red strobe (or Amber and Red) flashes during
configured alarm and warning conditions. A 95dB sounder also
activates during the alarm and warning conditions. The sounder
can be silenced with a red pushbutton switch. The alarm reset
conforms to ISA alarm sequence 3A
Product specifications for the SensAlarm Plus are in Appendix B,
Specifications.