Honeywell Analytics SPMFLEX Users Manual

SPM Flex Single Point Monitor Gas Detector

User’s Manual

SPM Flex Gas Detector

Introduction ��5

Safety Information ��6

Contact Information �� 7 Glossary �� 8 Product Overview �� 9

Battery operation �� 10

The handle (portable model) ��11

Opening the cover ��11

Main power rocker switch ��12

Turning the detector on and off �� 13

Navigation ��14

Menu Map ��15 Wiring and tubing ��19

Typical fixed installation topologies �� 19

Wiring diagrams �� 21

4-20 mA wiring �� 22

Modbus register definitions ��24 Setup �� 26

Installation drawing ��26

Mounting options �� 26

Dimensions ��27

Standard mounting bracket ��28

Backward-compatible mounting bracket ��29

In-line filters ��30

Optional sampling wand �� 30

Attaching the shoulder strap �� 31 Operation �� 32

Controls �� 32

Setup menu �� 38 Troubleshooting �� 42 Maintenance �� 46

Storing the detector �� 49

Recycling ��49

Storing Chemcassette Labels ��50 Detectable Gases �� 51 Specifications �� 52 Accessories and Parts ��53 Certifications ��56 Warranties �� 62

SPM Flex warranty ��62

Chemcassette

®

cartridge warranty �� 62

Index ��64

®

cartridges ��49

3

SPM Flex Gas Detector

4

SPM Flex Gas Detector

Introduction

The SPM Flex gas detector is an extractive gas monitoring system that draws gas

®

samples locally or from a remote point to a Chemcassette detection system� A wide range of toxic gas Chemcassette cartridges are available that enable detection of gases used or generated in semiconductor manufacturing and industrial environments�

The SPM Flex gas detector, available in wall mounted and portable versions, locally displays gas concentration, alarm, fault and status information via its backlit color LCD and LEDs� A simple to use 4-button keypad adjacent to the display provides the ability to set-up, review, operate and make changes to the detector’s configuration� The intuitive display and menu structure are designed to require minimal training� The SPM Flex has a local audio alarm with user-configurable output levels� The detector can be used both indoors and outdoors in a wide range of weather conditions�

The detector has flexible power and communications capabilities� These include 3 on-board relays, 4-20 mA analog output and Modbus/TCP outputs for signal and service connectivity� The gas detector is equipped with a USB port for configuration-sharing firmware updates and data downloads� For web-enabled devices, web pages are available via the Ethernet port�

tape-based optical gas

Standard operation conditions

The SPM Flex gas detector is designed for use in temperatures between 32ºF and 104ºF (0ºC and 40ºC) and relative humidities between 0 and 100% (the relative humidities are limited by tape and calibration)� The sample line will require additional hardware to remove moisture in high relative humidity conditions where condensing may occur (the sample must be non-condensing)� Dry conditions may require humidification�

High-altitude applications

The SPM Flex pump is optimized for operation at altitudes between –1000 feet (–305 meters) and 3000 ft� (945 m) above sea level� At altitudes above 3,000 ft� (915 m), up to a maximum of 6,000 ft� (1,830 m), contact Honeywell Analytics for calibration� (At 6,000 feet, pump capacity is reduced 18% and a flow-system adjustment to the bypass valve is required� This must be performed by a Honeywell Analytics certified technician� Contact Customer Service�)

5

SPM Flex Gas Detector

DANGER

!

Safety Information

Danger notices contain information that could prevent death or serious injury�

!

WARNING

Warnings contain information that could prevent injury or equipment damage�

!

CAUTION

Caution notices contain information that could prevent equipment damage�

NOTE

Notes contain helpful information�

6

Contact Information

Find out more:

www�honeywellanalytics�com

Americas Honeywell Analytics 405 Barclay Boulevard Lincolnshire, IL 60069 Tel: +1 847 955 8200 Toll free: +1 800 538 0363 Fax: +1 847 955 8208

detectgas@honeywell�com

Europe, Middle East, and Africa Life Safety Distribution AG Javastrasse 2 8604 Hegnau Switzerland Tel: +41 (0)44 943 4300 Fax: +41 (0)44 943 4398

gasdetection@honeywell�com

SPM Flex Gas Detector

Asia Pacic Honeywell Analytics Asia Pacic Co., Ltd.

#701 Kolon Science Valley (1) 43 Digital-Ro 34-Gil, Guro-Gu Seoul, 152-729 Korea Tel: +82 2 6909 0321 VOIP: +8 5401 0321

analytics�ap@honeywell�com

Technical Services

ha�global�service@honeywell�com

www�honeywell�com

7

SPM Flex Gas Detector

Glossary

Term Description

An analog communication method using a current

4-20 mA loop

®

Chemcassette

Ethernet

In monitor

Latching alarm or fault

LCD LED

Modbus TCP

Non-latching alarm or fault

Out of monitor The detector is on but idle

Relay

TWA

USB

VDC

cartridge

loop to indicate concentration readings and fault status�

An easy-to-install case that carries Honeywell’s Chemcassette tape� Cartridges are specific to different gas types/families�

Commonly used network technology for wired Local Area Networks�

The unit is actively monitoring the specified gas or family of gases

When configured, the SPM Flex will hold the alarm or fault status active until the user performs an alarm/ fault reset�

Liquid Crystal Display Light Emitting Diode Communications protocol running over Ethernet that

is commonly used for communicating with industrial devices�

An alert in which the SPM Flex will reset automatically when the condition is no longer present (i�e�, the detector does not have to be reset by the user)�

An electrical-operation output switch that can be used to indicate the presence of alarm and fault conditions�

Time Weighted Average, the average exposure to a harmful gas, usually calculated over a period of eight hours (a the typical workday)�

Universal Serial Bus is an industry standard communications protocol and bus that is commonly available on personal computers�

Volts of Direct Current

8

SPM Flex Gas Detector

WARNING

!

Product Overview

The SPM Flex gas detector is available in two configurations, portable and fixed� The portable model is equipped with a handle assembly and a shoulder strap� The fixed unit is supplied with a mounting bracket� If replacing an old SPM detector, a retrofit bracket is available (these are shown on pages 28 and 29)�

1

All units are supplied with a power adaptor manual, and a printed quick start guide�

Operate and service the SPM Flex gas detector only as specified in this manual and the accompanying quick start guide� Failure to do so may impair the protection provided by the detector and may also void the warranty�

Initial setup

Prior to use, the detector requires some minimal setup:

• Unpack the unit (save the packaging to re-use for service requests)�

• Read the quick start guide and this manual�

• Remove the paper optics card from the gate

and cable, a CD containing the user

Portable detectors

• Connect the power adaptor (in a dry, indoor location)

• Charge for at least 4 hours (the detector can be used while being charged)

• Open the detector’s cover

• Remove the rocker switch cover

• Turn the rocker switch to the on position

• Replace the rocker switch cover

• Load a chemcassette

• Configure the detector and begin to monitor (see pages 15-16 for basic

display usage)

• See detailed Operation (pages 32-41) and Optional accessories (pages 53-55)

Fixed detectors

• Install the wall-mount bracket and mount the detector to it (see pages 28-29)

• Wire in accordance with local electrical codes utilizing a trained electrician

(see pages 19-25)

• Input

• Honeywell-supplied power adaptor (indoor, dry location use only) or

• 24 VDC power supply

• Signal (as desired)

• 4-20 mA

• Relays

• Ethernet

• Open the detector’s cover

• Remove the rocker switch cover

• Turn the rocker switch to the on position

• Replace the rocker switch cover

• Load a Chemcassette cartridge

1 FSP Group Model FSP135-AAAN rated 1 5.62A / 24V (UL Listed QQGQ (E190414))

9

SPM Flex Gas Detector

• Configure the detector and begin to monitor (see pages 15-16 for basic display usage)

• See detailed Operation (pages 32-41) and Optional accessories (pages 53-55)

Additional accessories

• External dust filters (required on inlet) and/or tubing (can be used to reduce contamination as well as noise)

• Sampling wand

• Mating signal connectors for fixed installations

Battery operation

The SPM Flex gas detector is supplied with a power supply/charger than can connect the detector’s power connection and a standard wall outlet� (Ensure that the correct power cable has been ordered for local operation�) The power supply/ charger is designed for indoor, dry-location use only� The lithium-ion battery pack provides continuous operation of 6+ hours, depending on sampling conditions and unit configuration� The battery’s charge time is typically 4 hours� The detector can be operated while its battery is being charged (this may increase the charge time)� The battery is designed for 1000 charge cycles� Honeywell Analytics recommends keeping the detector connected to the power supply/ charger when not in use to keep the battery fully charged�

!

WARNING

• The battery is not field-replaceable� Return the unit to Honeywell Analytics if a battery replacement is necessary�

• Risk of fire and burns� Do not open, crush, heat above 140ºF (60ºC), or incinerate the battery� Follow manufacturer’s instructions�

How to extend battery life

Power consumption is optimized to extend battery life when not in monitor mode� In addition, the unit should not be exposed to extreme temperatures which shortens battery life� The time before recharging is required can be extended by taking the detector out of monitor mode when it is not in use�

The ports of a typical installation is shown in the figure below�

Exhaust out port

Sample in port

Power

Ethernet

Figure 1. terminals and ports

10

Relays or 4-20 mA

SPM Flex Gas Detector

The handle (portable model)

The detector can be conveniently carried with the optional handle, which is mounted onto the cover at three locations� If necessary, the handle can be removed by the user by removing two bolts� All of the detector’s functions can be performed with the handle attached� The handle swings out of the way for access to the Chemcassette cartridge area�

Opening the cover

Figure 2. Opening the detector cover

Release the cover by first unscrewing the handle pin� Pivot the handle up as shown in the illustration and push down the four latches (two on each side)� The detector cover will then be free to swing open, allowing a Chemcassette cartridge to be inserted or replaced, the power switch to be turned on or off, or the USB data port to be accessed�

11

SPM Flex Gas Detector

Main power rocker switch

Rocker switch cover

Main power rocker switch

Figure 3. SPM Flex main power rocker switch

After the detector’s cover is open, use a Phillips screwdriver to remove the rocker switch cover� Turn the main power rocker switch to the on position and replace the rocker switch cover�

The detector can now be turned on�

12

SPM Flex Gas Detector

Turning the detector on and off

Press and hold the Power/Cancel button until the green LED begins blinking� The detector will begin a startup sequence that lasts about 30 seconds�

The four LEDs provide at-a-glance information about the current state of the detector:

LEDs (red, green, yellow, blue)

Figure 4. SPM Flex LEDs

LED Description

Red

Green blinking The detector is active

Yellow

Blue solid Connected to external power

solid Alarm 1

blinking Alarm 2

solid Maintenance fault

blinking Instrument fault

To turn the detector off, press and hold the Power/Cancel button for 5 seconds or select “Power Off” from the menu�

13

SPM Flex Gas Detector

Navigation

Display

Power/Cancel

Accept/Select

Figure 5. SPM Flex controls

Up arrow

Down arrow

All SPM Flex menus are navigated by the four buttons shown in Figure 5�

Pressing either of the arrows or the Accept/Select button will access the menu from the main display screen� The arrows also are used to scroll up and down through lists of options� The Accept/Select button is used to initiate a highlighted option� During navigation, the Power/Cancel button will cancel a command or, when pressed for more than 3 seconds, it will exit to the main display�

14

Menu Map

Main Menu

SPM Flex Gas Detector

Login/Logout

Reset Alarms & Faults

Monitor Mode

Change Chemcassette

Review Mode

Maintenance

Setup

Test

Power Off

Reset all

Enter

monitor mode

Event

History

Inhibit

Summary

General

Optics

Verification

Silence

audio alarm

Out of

monitor mode

Chem-

cassette

4-20 mA

Current Loop

Monitoring Latching

Simulate

Gas

Settings

Flow Characterization

Force Relay

Gate

Force

4-20 mA

Additional

Status

Update

Program

Network

Open/Close

Outputs Network

Output

State

Security

Configuration

Manager

SoftwareTrend/Plot

The SPM Flex detector’s menus are easily navigated� As an example, this is how a user could review the detector’s gas settings when starting from the In Monitor screen:

1� Press the Up Arrow > to return to the Main Menu�

2� Press the Down Arrow 4 times to highlight the Review Mode option�

3� Press the Accept/Select button to enter Review Mode�

4� Press the Up Arrow or Down Arrow until the Gas settings option is

highlighted�

5� Press the Accept/Select button to display the Gas Summary�

To return to the detector to the In Monitor display, press the Power/Cancel button three times to back out of the Main Menu options�

15

SPM Flex Gas Detector

The display

Figure 6 shows the elements of the display that will be seen in various situations�

Status bar

Mute

Alarm 1/ Alarm 2/

Inhibit

indicator

Instrument

Maintenance Fault

Fault

Concentration trend indicator

Menu

Clock

Monitor

mode

Indicator

Battery indicator

title

15:

42:

01

0

123

.

-

H2S

Hydrogen Sulfide

In monitor

Gas name

Gas concentration

2

Menu

ppm

Units

5.678

1.234

options

Bar graph w/upper, lower alarm limits

42:

01

15:

Login / Logout

Reset alarms/faults

Monitor mode

Change Chemcassette

Main menu

Highlighted

Scroll bar

option

Monitor mode indicator

Figure 6. Elements of typical SPM Flex detector displays

The bar graph on the right shows the current concentration relative to the Alarm 1 and Alarm 2 setpoints� (The bar’s range is relative to the alarm levels, not to the full scale of the selected gas)�

The color of the status bar changes according to the system status (green = OK/ in monitor, yellow = fault, red = alarm, blue = Out of Monitor mode)�

Display and navigation

Under normal operation the LCD and LED display system status, gas concentrations, and alarms� In set-up, review, calibration, and test modes, the LCD shows the relevant menu options and system status bar� The interface is navigated using the four buttons:

Control Function

Up arrow Scroll up through lists of options

Down arrow Scroll down through lists of options

Accept/Select Accept or select a highlighted option

Power/Cancel

Power/Cancel will turn the unit on if it’s in the off state, will exit back to the previous menu level, and will enter Reset mode (quick press), or Power Off mode (long press and hold) from the main display.

In the main display mode, the display shows the current gas name and concentration, the monitoring states and faults and/or alarm status, if applicable�

16

SPM Flex Gas Detector

Loading a Chemcassette cartridge

The Chemcassette cartridge door must be closed before putting the detector into monitor mode (this holds the Chemcassette cartridge in place)� The detector must be taken out of monitor mode before opening the door�

NOTE

Chemcassette cartridges must be stored according to the manufacturer’s guidelines when not in use�

Chemcassette

cartridge

Take-up spindle

Supply spindle

Optics gate card

Figure 7. The optics gate card and Chemcassette cartridge

1� If the detector’s handle is installed, release it by unscrewing the thumbscrew�

For fixed installations, skip to Step 3�

2� Tilt the handle up as far as possible�

3� Unfasten the latches on the sides of the detector (two on each side) that

secure the Chemcassette cartridge access cover�

4� The detector has slotted hinges� Lift up the cover slightly and then open it all

the way to the right�

5� Select the Change Chemcassette menu option and follow the on screen

instructions�

6� If required, remove the old Chemcassette cartridge� When prompted, snap

the new Chemcassette cartridge into place. It will t in only one orientation. The takeup spindle will “utter” back and forth to allow easy installation.

7� To close the cover, position it over the base and press so that it contacts the

gasket uniformly�

8� Close the latches on the sides of the detector to secure the cover�

17

SPM Flex Gas Detector

If there is an error (i�e�, the same cartridge was reinserted, the new cartridge has expired, or an unqualified user is attempting to insert a cartridge that detects a different gas than the last one), an error message will be displayed and the installation will be canceled� If the installation is successful, a summary of the current configuration will be displayed and the user can then choose whether to enter Monitor Mode or exit the Change Chemcassette Mode out of monitor�

Removing a Chemcassette cartridge

1� Navigate to Maintenance > Open/Close gate� 2� Select “Open Gate�” 3� Remove the cartridge�

4� Select “Close Gate�”

Changing the selected gas

1� While out of monitor mode, navigate to Set-up > Monitoring > Gas�

2� Select “Current gas” and pick the desired gas from the selection box

3� Select “Save�”

Entering monitor mode

From the main menu, navigate to the “Monitor Mode” option and select “Enter monitor mode�”

1� If a Chemcassette cartridge has been installed, the detector will enter Monitor

Mode�

2� If a Chemcassette cartridge has not been installed, a user with the necessary

passcode can inititate the Chemcassette wizard� Otherwise, the detector will not enter monitor mode�

18

SPM Flex Gas Detector

Wiring and tubing

Typical fixed installation topologies

The SPM Flex gas detector has flexible installation options to allow the user to select the one most suitable for a specific application� The detector is supplied with weather-sealed connectors for both power and Ethernet, and with a third port sealed� A third connector for communications is installed (for relays or 4-20 mA), or any of the ports can be replaced with appropriate connections in accordance with local codes (allowing the user to wire directly to the terminal block)� Install the detector near a dedicated circuit breaker�

!

CAUTION

• The safety of any system incorporating the SPM Flex gas detector is the responsibility of the assembler of the system�

• Position a permanently-installed SPM Flex gas detector so that it does not interfere with access to the dedicated circuit breaker�

Electrical connection is made via conduit directly to ports or via the connector (see Figure 1 on page 10)� The terminals used are suitable for conductors of 24 to 14 AWG (0�5 to 1�8mm Dia�)� The use of 16 AWG (1�5 mm dia�) conductors is recommended�

!

CAUTION

Use the supplied power adaptor/connector only� (The adaptor is rated for indoor use only�)

19

SPM Flex Gas Detector

Ethernet connector

P8

P9

+

24 VDC

-

Fault

NO

NC

COM

Relay 2

NC

Relay 1

NO

NC

COM

+

-

4-20 mA

NO

4-20 mA connections

Input power connections

Relay connections

top of detector

Figure 8. SPM Flex connections

Terminal Module

The terminal module is located on the main PCB inside the gas detector� All power, relay, and 4-20 mA connections to SPM Flex are made via this module� Wire entry to the terminal module area is via the cable entry/conduit entry located at the top of the detector�

This table shows the default wiring configuration for the communication connector when installed by Honeywell Analytics� The relays are labeled for the factory default but the configuration can be modified to have a single alarm and separate faults�

Relay Terminal Connections

No. Color Assign to Relay

1 Brown 2 Red 3 Orange 4 Yellow 5 Green 6 Blue 7 Purple 8 Gray 9 White

10 Black

Alarm2 COM

Alarm2 NO

NC

Alarm1 COM

Alarm1 NO

NC

Fault COM

Fault NO

NC NC

For 4-20 mA wiring, wires 1 through 8 would be disconnected and wires 9 and 10 would be used� Do not run 4-20 mA signals and relay signals in the same cable bundle�

20

Wiring diagrams

SPM Flex Gas Detector

Controller

R

L

Figure 9.

Controller

+VE

Signal

-VE

4-20 mA sink wiring diagram

+VE

1

2

3

1

SPM Flex

24V+

4-20 mA+

Current

Flow

24V-

SPM Flex

24V+

R

L

Figure 10.

Controller

Signal

-VE

4-20 mA source wiring diagram

+V1

+V2

-V2

-V1

2

Current

Flow

3

4-20 mA -

24V-

SPM Flex

24V+

4-20 mA+

4-20 mA-

24V-

Figure 11.

4-20 mA isolated wiring diagram

21

SPM Flex Gas Detector

4-20 mA wiring

4-20 mA output is a three-wire connection that is configurable as sink, source, or isolated, as shown in these following figures� Use an Allen wrench to remove the wiring cover for access to the terminals� There must be a 200-600-ohm load on the 4-20 mA line�

To ensure adequate resolution to overcome tolerance in the 4-20 mA reading, set the full scale at an appropriate level� The SPM Flex issues a fault if the measured 4-20 mA reading is more than 0�8 mA (5% full scale) off from the expected drive value�

jumpers

Figure 12. 4-20 mA sink conguration

jumpers

Figure 13. 4-20 mA source conguration

jumpers

Figure 14. 4-20 mA isolated conguration

22

SPM Flex Gas Detector

Relays

The detector is equipped with three relays� Connect the unit as shown in this figure�

RELAY 1

+

4-20 mA

-

+

24 VDC

-

COM

FAULT

TERMINALS

Fault

NC

NO

Relay 2

NC

COM

RELAY 2

TERMINALS

Relay 1

NO

COM

NC

NO

TERMINALS

Figure 15. Relay conguration

The detector can be wired as normally closed or normally open� It can also be configured as normally energized or normally de-energized via software�

NOTE

Do not wire relays and 4-20 mA in the same wire bundle�

By default, the relays are set to Alarm 1, Alarm 2, and Instrument Fault�

23

SPM Flex Gas Detector

Modbus register definitions

Register Address/Name Bits Description Values

0: No Inhibit 1: Inhibit Alarm

0-2 Inhibit State

3 Instrument Fault 1 = Active 4 Maintenance Fault 1 = Active

5-6 Alarm State

40001 System Status

40002 Lastest Active Fault Code

40003-40004 Reported Concentration 32 bit Float 40005-40006 Actual Concentration 32 bit Float

40007-40011 Gas Abbreviation

40012 Concentration Display Format

40013-40014 Gas Table LDL 32 bit Float 40015-40016 LAL 32 bit Float 40017-40018 TLV 32 bit Float 40019-40020 Fullscale 32 bit Float 40021 Unused

40022 Alarm Enable

40023-40024 Alarm 1 Setpoint 32 bit Float 40025-40026 Alarm 2 Setpoint 32 bit Float 40027-40028 User LDL 32 bit Float 40029-40030 4-20 mA Fullscale 32 bit Float 40031 Chemcassette Code 16 bit Integer 40032 Chemcassette Days Remaining 16 bit Integer 40033 Flow 16 bit Integer

40034 Battery Level 16 bit Integer

40039 Heartbeat Counter

7 Monitor State

8 Conc Over Fullscale 1 = True

9-10 Concentration Trend

11 Alarm 1 Simulation 1 = Active 12 Alarm 2 Simulation 1 = Active 13 Instr. Fault Simulation 1 = Active 14 Maint. Fault Simulation 1 = Active 15 Unused 16 bit Integer

(0 = No fault)

9 byte string including terminator

0-1 Units 0: PPB

2-3 Decimal Places 0, 1 or 2 4-15 Unused

0 Alarm 1 Enabled 1 = Enabled 1 Alarm 2 Enabled 1 = Enabled 2-15 Unused

16 bit Integer (increments once per second)

2: Inhibit Fault 3: Inhibit Alarm & Fault 4: Inhibit All

0: No Alarm 1: Alarm 1 2: Alarm 2 0: Not Monitoring 1: Monitoring

0: Stable 1:Rising 2: Falling

1: PPM

24

SPM Flex Gas Detector

Tubing (optional)

Sample and exhaust tubing calculations

This table shows the flow rate, tubing length, transport time, and maximum pressure and vacuum at the inlet and exhaust points�

Tubing lengths vary among gases� If the pressure or vacuum on the inlet/exhaust lines does not meet the recommended values, the detector may encounter flow faults�

Sample Specifications

Description Maximum

0

1

Inlet

Outlet

Tubing length, m (ft)

Transport time (sec)

Flow rate (cc/min.)

Tubing OD in mm (in.)

Tubing ID in mm (in.)

Tubing Length, m (ft) 30 (100)

Tubing OD, mm (in) 6.35 (0.25)

Tubing ID, mm (in) 4.76 (0.188)

30 (100) 20 (66)

19 13 7

700-1200 (flow is set and controlled per calibration)

6.35 (0.25)

3.18 (0.125)

10 (33)

The overall maximum load on the pump between the inlet and the exhaust should not exceed 10 inches H2O.

NOTE

Use Teflon Fluorinated Ethylene Polymer (FEP) tubing to ensure proper sample transport�

Optional external filters can be installed to reduce noise or to monitor for gas at the location of the detector� To do this an inline filter is simply connected to the gas inlet port� The area around the detector is then being monitored as opposed to a sample being drawn from a remote location�

filter

John Guest fittings

Figure 16. External lter

25

SPM Flex Gas Detector

Setup

Installation drawing

Figure 17. Installation drawing

Mounting options

!

CAUTION

The SPM Flex detector must be installed only by qualified professional personnel in accordance with local codes�

The SPM Flex gas detector has an optional mounting bracket assembly that is easily affixed to a suitable vertical surface such as a wall, tool housing, mounting plate on a pole etc�

Two mounting bracket options are available for fixed units: The standard kit is for typical/new applications in which the detector is to be mounted to, for example, a wall� A second option, a retrofit mounting, is a plate to be used when replacing a Honeywell Analytics SPM detector with the SPM Flex detector�

Mount the detector with at least two appropriate fasteners (e�g�, concrete screws when mounting on concrete, etc�)� The fastener combination must be capable of securely holding four times the detector’s weight, approximately 40 lbs (18�2 kg)� When mounting the detector on sheetrock, the fasteners must be attached to studs�

26

Dimensions

13.2 in.

(33.6 cm)

SPM Flex Gas Detector

9.5 in. (24.1 cm)

6.4 in. (16.3 cm)

12.3 in. (31.2 cm)

7.2 in. (18.3 cm)

Figure 18. Dimensions of the SPM Flex Gas Detector

27

SPM Flex Gas Detector

Standard mounting bracket

Figure 19 shows the detector’s standard mounting bracket�

12.5 in. (31.8 cm)

drilling holes:

10.2 in. (26.0 cm)

0.6 in. (1.6 cm)

6.3 in.

(15.9 cm)

Figure 19. Standard mounting bracket

At least 2 screws must be used when mounting the standard bracket to a wall� Use the bracket as a template for determining the location of the holes to be drilled in the wall� See the Specifications section on page 52 for a description of the appropriate screws�

28