Scott QuadScan II 7400 Operation & Maintenance Manual

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Warning: Read & understand

QuadScan II

MODEL 7400

Four Channel Receiver and Controller

Operation & Maintenance Manual

Rev: 7400 Rev F Date: 5/02/08 ECN 129028 Part Number: 087-0023

contents of this manual prior to opera result in serious injury or death.

tion. Failure to do so could

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TABLE OF CONTENTS

NTRODUCTION

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Important Safety Issues & Warnings Unpacking G

eneral Description

Figure 1 - Model 7400 QUAD-SCAN II Complete Assembly

QUICK START

Quick Start Programming Menu Tree

RECEIVER/CONTROLLER

General NEMA-4X Wall Mounted Enclosure Figure 2- Model 7400 QuadScanII Figure 2A – Enclosure Side View Display/Function Assembly

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Figure 3 - Model 7400 Front Panel Push Buttons CPU/Power Supply Boards Figure 4 - Terminal Strip Layout

INSTALLATION

Selecting the Physical Location Methods of Physical Mounting Figure 5 - Mounting Dimensio Directions for Wiring Figure 6 - Terminal Block Arrangement on Main I/O – Power Supply Board Figure 7 – Transmitter Wiring to Model 7400 Figure 8 - Wiring of Normally Open Field Contact into Model 7400

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ns of Model 7400

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Table of Contents

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SYSTE

Figure 9 - Battery Backup (P/N 096-0719) Outline & Interconnection Wiring

M OPERATION

General Display Readings Visual Indications Current Loops Current Loop Outputs Alarm and Re Figure 10 - Alarm Set For Increasing or Decreasing Gas Concentrations Latching Alarms Energized Relays (Fail Safe)

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(LEDs)

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lay Operation

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Common Alarm Relays Fail Relay Horn and Horn Relay Inhibiting Alarms Sensor Damping Constant Zero DB

SETUP AND PROGRAMMING.....................................................................................................28

Power Up Programming Setup SECURITY MENU SYSTEM MENU CHANNEL MENU

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OPTIONAL REMOTE RELAYS.....................................................................................................52

General Specific

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Table of Contents

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SYST

NEMA-4X Enclosure Circuit Board Cable

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Figure 11 - Remote Relay Enclosure – Front View Installation Figure 12 - Remote Relay Assembly Outline Dimensional & Installation Drawing (P/N 096-2691) Wiring Figu Remote Relay Operation Figure 14 - Remote Relay Settings Remote Relay Setup and Programming

EM MAINTENANCE

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re 13 - Interconnect Wiring Between 7400 & Remote Relay Assembly

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Factory Default

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General Alarm/Relay Check

TROUBLESHOOTING..................................................................................................................65

General Channel Test Setup Table 2 - Identify and Loc

SPARE PARTS

SCOTT HEALTH & SAFET

CONTACTING SCOTT HEA

TECHNICAL SPECIFICAT

FACTORY DEFAULT SETT

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ate Possible Malfunctions During System Failure

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Y WARRANTY

LTH & SAFETY

IONS

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INGS

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Table 3 - Factory Default Settings for Receiver/Controller

CUTOMER WORK SHEET

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Table of Contents

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LISTING PROGRAMMING SELECTIONS Channel 1 LISTING PROGRAMMING SELECTIONS Channel 2 LISTING PROGRAMMING LISTING PROGRAMMING SELECTIONS Channel 4 LISTING PROGRAMMING SELECTIONS REMOTE RELAYS

APPENDIX A

Programming Example 1 Programming Example 2 Programming Example 3

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SELECTIONS Channel 3

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Table of Contents

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Introduction

Important Safety Issues & Warnings

The following symbols are used in this manual to alert the user of important instrument ope

This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions.

Shock Hazard – Disconnect or turn off power before servicing this instrument.

Do not open the case when the uni

Notify all personnel that the unit is out of service before removing from service

Unpacking

All QuadScan II Receivers/Controllers are individually packaged. If the optional remote relay an it will also be packaged with the receiver/controller. If the optional battery back-up unit is purchased, it will be packaged separately.

rating issues:

t is powered. Do not open the case in a hazardous environment.

d cable is purchased,

Open each box carefully and remove the items. Identify all items shown in

list for completeness. Examine each item for external damage. If there is any damage or if any item is missing, notify

the factory at:

Scott Health & Safety Customer Service

4320 Goldmine Rd. Monroe, NC 28110 USA Phone: (704)291-8300

For web and email :

www.scotthealthandsafety.com

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Fax: (704)291-8340

Figure 1

and check yo

ur order and packing

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General Description

The QuadScan II Receiver/Controller provides the electronic interface with the remotely located gas transmitters (oxygen, or combustible). It also provides a conti alarm displays, and alarm functions which can initiate corrective actions when any undesirable gas concentration is detected

The receiver/controller is offered in a unique configuration, p or 3 channels to be purchased within the 4 channel unit. Only the number of channels purchased will be activated for monitoring in this unit.

If you wish to activate additional channels when less to purchase the activation codes.

A NEMA-4X wall mounted enclosure contains the microprocessor controlled electronics, displays, and terminal blocks used for the power input, transmitter 4-20 mA current loop inputs and outputs, relay contact outputs, and remote relay outputs.

nuous digital display of each monitored gas concentration, various

roviding a complete four channel unit, but will allow 1, 2,

than 4 are purchased, contact the Scott Health & Safety factory

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gures 10 & 11 for Mounting Details &

Model 7400 QUAD-SCAN II

(See Fi

Remote Relay Box P/N 096-2691

Comes with 10 feet of Cable

Wiring Interconnect)

Battery Backup P/N 096-0719

(See Figure 14 for Mounting Details & Wiring

Interconnect)

Figure 1 - Model 7400 QUAD-SCAN II Complete Assembly

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Quick Start

1. Install per the physical installation information found in this ma mounting requirements.

2. The 7400 can be powered with either 100-270VAC or 24VDC. Refer to Electrical drawings for information about the power input wiring. Wire according to National Electric Code

Do not apply p transmitters.

3. Connect your gas transmitter(s) to the 7400. Refer to

into your system at this stage

4. Touch the through 4. Press the display next to the channel identification number.

5. Follow the menu trees menus [refer pre-configured for your specific application, refer to “ save your programming and finish press the

ENTER

must be completely programmed before you can proceed to another channel.

Setup

key and this will complete your programming. When programming other channels, each channel

key to enter t

ENTER

ower until you have finished wiring the complete system, including

Figure 7

)

he programming mode. Use the

key once the correct channel is in “Setup” mode. This is seen on the LCD

to “

Setup & Programming

Factory Default Settings

Escape

key until

nual. Refer to Installation drawings for

. (

No relay contacts should be hard wired

Down

key to program channels 1

” for complete details]. Unless your unit was

” for factory default values. To

SAVE SETTIN

GS?

is displayed. Press the

Model 7400 Function Keys

6. Connect common relays [refer “Terminal Block Arrangement” figure for connections]. Refer to “

Relay Operation

7. If optional remote relays are to be used, connect per the “Optional Remote Relays” section of this manual.

8. For proble Scott Health & Safety representative or the Scott Customer Support team.

ms in startup, refer to the “Troubleshooting” section of this manual. Otherwise contact your local

” for further details on relay functionality.

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Alarm and

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Quick Start Programming Menu Tree

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System Menu

Touch Enter Key

Version 1.# (1)

Move through options with UP/Down Key

Adjust Contrast Inhibit

: None/All

Set Local Relays

Relay: Common Fail Failsafe: Yes (3) F1 Relay: Common Warn Failsafe: Yes/No W1 Relay: Common Alarm Failsafe: Yes/No

A1 Relay: Common Horn Failsafe: No (3) W1 Press Escape Key then UP key to

advance to next menu

Set Remote Relays

Remote Relay 1 – 8 Move through all 8 relays with UP

key. Press ENTER to adjust. Failsafe: Yes/No W1 (4) Press Enter k

relay 1 - 8

Time:

##:##

Date:

## / ## / ####

(6)

(2)

Units

F4 (4)

W2 W3 W4 (4)

A2 A3

A4 (4)

... W4

ey to step back to

A4 (4)

(5)

Cal Loop Input

Channel Menu

Touch Enter Key

ON/OFF/IHB: ON

Move through options with UP/Down Key

Sensor Full Scale:

Tag: Damping (S): Zero DB (%FS): 0 – 5 Inhibit(mA): Fault(mA): Setup Warning

Warn Set: ### Warn Reset: ### Warn Delay: 0 –10 sec. Warn Hold: 0 – 7200 sec. Warn Latch: Yes/No

Setup Alarm

Same values available under Warning

Cal Loop Output

: 4-

: %/PPM / PPB /None

Six character name

20mA (1

###

0 -10

2.0 – 20.0

0.1 – 20.0 (2)

(2)

)

Security Menu

Touch Enter Key

Security Options

Move through options with UP/Down Key

Change Password Lock System

Notes:

1. These values are factory set and cannot be adjusted.

2. To access the submenu associated with these parameters, press the ENTER key. To bypass the parameters, press the UP/DOWN key to go back to the main menu.

3. The common fail relay can only be programmed as failsafe. The common horn relay can only be programmed as non-failsafe (otherwise the horn enunciator woul continue with the programming.

key. Once a submenu value has been programmed, press the ESCAPE

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d always be on). Press the ENTER key to

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4. The relays can be configured for any configuration desired. W = warn, A = alarm, F = fail and the numbers 1 –

4 designate channel number. & = And logic,

“

Remote Relay Operation” for additional information. Press the ENTER key when the programming is

complete and the UP/DOWN key to go to a different menu.

= Or logic and ( ) are use

d to group channels. Refer to the

5. The SET REMOTE RELAYS menu is only available if this option is phys controller. Otherwise the menu is not displayed.

6. The CONTRAST menu is selected by pressing the ENTER key and then adjusting the contrast with the UP/DOWN key.

ically connected to the 7400

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Receiver/Controller

General

The QuadScan II Receiver/Controller i transmitter. The unit has 3 major components:

NEMA-4X wall mounted enclosure Display/function assembly CPU/power supply boards

All setup functions are completely programmable usi internal alarm horn is mounted within the enclosure providing 85 db at 1 ft.

Four 5A SPDT relays are included which are common to all 4 channels. Relays provide the following:

FAIL

WARN

ALARM Activates on a programmed set point corresponding to an increasing or decreasing gas

s a 4 channel gas receiver designed to operate with any 2, 3, or 4 wire gas

ng the switches located on the display/function assembly. An

Activates on power loss.

Activates on a programmed set point corresponding to an increasing or decreasing gas concentration, flame signal or any other analog signal.

concentration, flame signal or any other analog signal.

a failure of the current loop signal from the field device or an internal failure such as

Note:

setpoint when monitor a decreasing gas concentration application such as oxygen, the alarm set point is set lower (e.g. 16% v/v) than the warn set point (e.g. 19.5% v/v). Although, the alarm set po detect rising oxygen concentration and the warn setpoint programmed to detect decreasing oxygen concentration.

HORN

Programmed to activate on for warn, alarm or both.

An optional remote relay assembly in a NEMA-4X wall mount encl outputs are required. There are six 5A SPDT and two 5A DPDT relays. These relays can be assigned or zoned to any input channel.

The Quadscan II receiver controller will not operate with out a source of electri for short term outages either provide another source of electricity such as a battery backup. An optional battery backup assembly is also available providing 2.5 amp-hours of DC power to the unit. Factory suppl Health & Safety P/N 004-0002) is a Sonnenschein Part No. A212/35, 12 volt 2.5 amp hour battery.

Warning: Replace the battery only with the same type and rating.

Alarm set points are typically programmed for a higher gas concentration than the warn

ing an increasing gas concentration, including toxic and combustible gases. For

int can be programmed to

osure can be provided when individual alarm

city. If you require an electricity source

ied battery (Scott

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Failure to do so may be dangerous. Dispose of batteries per applicable Scott Health & Safety or your local Scott authorized distributor.

NEMA-

The enclosure measures 9.32 inches high x 9.19 inches wide x 5.38 inches deep (233 mm x 203 mm x 136 mm). It provides a watertight, dust tight and corrosion resistant enclosure for outdoor or indoor mounting.

4X Wall Mounted Enclosure

A door covers the digital/function front panel and can open to the left or right for easy mounting in restricted areas. All displays; gas concentration, through the clear opening in the enclosure door. A cover plate is located at the bottom front area of the enclosure and when it is removed, access is available for all the terminal strips used for input an

d output wiring. See Figure 2A

cover plate.

Figure 2- Model 7400 QuadScan II

alarm LEDs, and the function switches, are visible

local, state and federal regulations or contact

for correct installation of bottom

Figure 2A – Enclosure Side View

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Display/Function Assembly

The individual visual display of absolute value of the gas c active channels provides the status of the gas/flame detection system.

Operator intervention and/or automatic alarm corrections can be made from the information displayed by this unit. Gas Concentrat of the four.

Individual Channel Status is displayed by a 2 color LED for each active channel:

Channel OK Current Loop Fault Flashing yellow (flashin

ion is displayed on a LCD in units of PPM, PPB, % and none (flame applications) in any combination

Green

yellow).

oncentrations, alarm status, and channel status for all

g until the reset button is pressed, and then it becomes solid

Channel Inhibited

Individual alarm statuses are displayed for warn and alarm events by a yellow (warn) and re each active channel. The individual alarm LEDs flash when an alarm condition is detected and remain flashing until acknowledged by the reset button.

The function section of the unit is used for all programming and setup requirements. Five tactile feel switches are provided to implement the following functions:

SETUP

the right on the LCD each time the switch is activated.

UP To scroll up through the various channels or programming options

DOWN

ENTER

Flashing yellow/green (an inhibited channel cannot be set to steady color)

d (alarm) colored LED for

To activate programming entry to the system. This also moves the alphanumeric selection one position to

To scroll down through the various channels or programming options.

To enter the required programmed option selected from the UP or DOWN switches.

ESCAPE

eventually return to the gas concentration display.

To return to a prev

ious menu or selection each time the switch is activated. This will

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NOTE: During the programming mode, if a switch is not activated for 20 minutes, the display automatically returns to the gas concent

ration display and all previous programming will be lost.

Figure 3 - Model 7400 Front Panel Push Buttons

CPU/Power Supply Boards

The power supply board is located on the inside back surface of the enclosure. The CPU/display board is located directl

y behind the display/function panel. They are connected together via a ribbon cable.

The CPU board is used to store the system configuration, operation data and all parameters entered from the function switches on the display/function assembly.

All inform allows all information to remain stored during a power disconnect.

The power supply board accepts AC and DC power inputs to the system and supplies the va and the transmitter loops. The system will operate on any AC voltage between 90 to 280 VAC, 50/60 Hz. or DC voltage between 10 to 30 VDC (nominal 24 VDC). When a battery backup system is connected to the unit and if the AC power

There are 4 common relays located on the power supply board providing SPDT 5A contacts. The warn and alarm relays can be programmed for normally energized (fail safe) or normally de-energized operation as well as latching/non-latching. The fail relay operates in a normally energized (failsafe) mode only. The horn relay operates in a normally de-energized mode only.

ation is stored in non–volatile electronically erasable programmable read only memory (EEPROM), which

should fail, the system will automatically switch over to DC power without interruption.

rious circuit requirements

When any of the following conditions exist, the relay

Fail – When the 4-20 mA loop from the transmitter falls to the programmed fault level. Warn – When a gas concentration exceeds a pre- set programmed level (set point), this is normally not a

hazardous condition. When this happen, monitored.

Alarm – When a gas concentration exceeds a pre-set programmed level (set point) which is set higher or lower

for oxygen monitoring than the warn relay. When this happens,

Horn – This relay provides a contact for a remote horn and will change state on either/or warn or alarm condition.

The local buzzer will also activate. The horn relay will de-energize (turn off) once the silence/rese pushed

EVEN WHEN A WARN/ALARM EVENT IS STILL OCCURRING.

contacts change state:

the increasing or decreasing gas level concentration needs to be closely

corrective action should take place.

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t button is

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Terminal blocks are provided for the following input and output requirements:

TB1 – 2, 3, or 4 wire 4 – 20 mA inputs for Channels 1 and 2 TB2 – 2, 3, or 4 wire 4 – 20 mA inputs for Cha TB3 – AC power input TB4 – Battery backup input TB5 – 2 wire 4 – 20 mA outputs for 4 channels TB6 – Remote relay outputs for 8 relays TB7 – Contact outputs for fail, warn, alarm, and horn relays provide normally closed (NC), common (C) and

rmally open (NO) contacts for customer use.

WARNING SHOCK

HAZARD:

RISK OF ELECTRICAL SHOCK- DISCONNECT OR TURN OFF POWER BEFORE SERVICING THIS EQUIPMENT.

nnels 3 and 4

Figure 4 - Terminal Strip Layout

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Installation

The installation information is presented in three sections:

Selecting the appropriate physical location Methods of physical mounting Directions for wiring

ote: Remote relay installation is covered in a separate section.

Selecting the Physical Location

The specific location for the receiver/controller is the responsibility of the user. Use the following guideline to determine the appropriate location for th

Do not exceed the temperature range of -13º F to 122º F (-25º C to 50º C) Must be located in non-hazardous areas Should avoid extreme vibration, dampness and temperature variations Avoid direct sunlight or provide a sun screen Should have easy vi

sibility and access for the operator

e unit:

Must allow sufficient clearance for wiring, maintenance, set up and programming

WARNING

reading may be low resulting in

Met

hods of Physical Mounting

The enclosure dimensions are 9.3 inches high x 9.2 inches wide x 5.4 inches deep and weighs 4 lbs. (237mm H x 233mm W x 137mm D and 1.75 Kg) Refer to Locate the 6 the following steps before moving to the job site. The display/function assembly and bottom front cover plate will need to be removed from the base power hasn’t been wired in yet.

connector.

1. The display/function assembly can be removed

mounting holes at the desired location and drill for the proper bolt size. It may be advisable to perform

located on the

: If the equipment is not installed as prescribed by the manufacturer, the accuracy of the

Figure 5

enclosure to access the mounting holes. Unless this is an instrument relocation, the

Be sure power is removed from the unit before disconnecting the flat ribbon

right side,

closest to the back of the enclosure.

for recommended clearances and mounting hole locations.

by inserting a small blade screwdriver into the 3/8 "long slot

2. Insert the screwdriver into the slot and lever it outwards, dislodging the hinged section of the base enclosure.

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3. Move t

4. Tilt the assembly away from the base enclosure and unplug the ribbon cable from the display circuit board.

5. On the

Use the following steps to attach the assembly to the base:

1. Position the display assembly over the base.

2. On the left side, move the hinge section out from the assembl

3. Push the top of the hinge section in towards the side of the assembly, locking the left side to the base.

he hinged section away from the side of the enclosure, disengaging it from the base.

Power must be off before removing ribbon cable.

left side, follow steps 1 – 3. The assembly will then lift clear of the base.

Caution: All circuit board components are now exposed. Extreme care must be taken not to damage these components.

Using #8 mounting screws or bolts, mount the enclosure to mounting holes in the enclosure.

the wall or other suitable structure via the 6

y and make sure it has engaged the hinge rod.

4. Pull the right side of the assembly away from the base and reconnect the ribbon cable.

5. On th

Note:

or conduits when mounting the enclosure. Use all NEMA-4X rated comp rating of the enclosure.

e right side, follow steps 2 – 4 to complete closing the assembly to the base.

The bottom of the enclosure is pre-drilled for cable entry. Clearance should be allowed for the cables

onents for cable entry to maintain the

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Figure 5 - Mounting Dimensions of Model 7400

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Directions for Wiring

Remove the cover plate located at the front bottom of the enclosure; this will expose all terminal blocks. The –

power supply board is labeled with the appropriate function and wire designation to implement correct wire hook up. Refer to holes in the

Incoming AC power to Termina or circuit breaker and is to meet all requirements of applicable local and state electrical codes. The power switch and/or circuit breaker are to have proper electrical r switch/circuit breaker in close proximity to the 7400 Receiver. Power ON is to be so designated with an “I” and power OFF with an “O”. Wiring from the power source to the 7400 receiver is to be service rated in accordance with local and state electrical codes.

Refer to and Controller.

Figure 6

Figure 7

for the terminal block layout. Route the power, ground, relay and signal wires through the entry

bottom of the enclosure. Note: Power, grounding and relay wiring must be separated from signal wiring.

CAUTION: Common relay contacts and optional remote relay contacts to be wired to external devices should not be connected at this time. Programming must are connected.

relays to activate. If alarm by pass systems are in place and can be activated, this caution can be ignored.

for the current loop wiring from transmitter to Model 7400 Quad Scan II.- Four Channel Receiver

be completed before wires

Connecting the wires before programming is complete, may cause alarms and

l Block TB3 (See

Figure 6

) is to be connected from a certified/approved power switch

atings to operate as a mains disconnect device. Locate the power

main I/O

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Figure 6 - Terminal Block Arrang

ement on Main I/O – Power Supply Board

CAUTION: All relay contacts are rated 5A Resistive Load. Any in-rush current above this value can cause damage to the unit

Dry Contact Input Wiring

Dry-contact inp smoke or fire detectors.

uts can be applied into the model 7400 analog input channel. This can be done, for example, for

Figure 8

illustrates how to wire a normally open dry contact into the analog input.

Figure 7 – Transmitter Wiring to Model 7400

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IMPORTANT: This application requires 24VDC +2 case when the AC is used to power the 7400.

values significantly different than 24VDC. To use this application, the full scale range i

approximately 100% of scale when the field contacts operate. Connect resistors and relay as in the figure.

s set to 0 – 100%. The reading will be 0 with no alarm condition and

% to be present between +24 and COM as is typically the

Operating the 7400 off of battery backup could provide voltage

Figure 8 - Wiring of Normally Open

Field Contact into Model 7400

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Figure 9 - Battery Backup (P/N 096-0719)

Outline & Interconnection Wiring

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System Operation

General

The QuadScan II allows up to 4 inputs of 0/4 - 20 mA and converts these inputs to digital displays on a LCD. An input cu

rrent of 4 mA corresponds to a display of 0.00, and an input current of 20 mA corresponds to the programmed full scale digital display. Displays are checked against programmed alarm levels (set points) to illuminate LEDs, activate relays, and sound the in current loops.

Display Readings

The LCD is capable of displaying digital ranges from 000 to 1999. A decimal point may appear in the digital display, which is set aut digital ranges are shown below.

omatically by the programmed channel full-scale display. Possible full-scale displays with respective

Full Scale

1.00 – 9.99

10.0 – 99.9 100 –

1999

ternal horn. The input current loops are also used to generate isolated 4 - 20 mA output

Decimal Precision

2 digits 1 digit 0 digits

The decimal point is fixed and does not change once set. The LCD may be programmed for one of the three gas concentration units or none at all.

% Percent

PPM Parts Per Million PPB Parts Per Billion none

Contrast may be set for the LCD during setup and programming, which may provide a clearer view of the digital display from various angles.

The LCD can be programmed with up to a maximum of six (6) alphanumeric characters to display specific customer information such as transmitter location, area identification etc.

Visual Indications (LEDs)

The visual indications located on the digital/function assembly are divided into two distinct sections; channel status and alarm status. These sections are l

ocated just below the LCD.

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Channel Status

The channel status essentially provides a summary of the health of each active channel. Four LEDs are used, one for each of the 4 channels. Each LED provides 3 functions:

Channel OK - Green Channel in Fail - F Channel Inhibited - Flashing yellow/green

Alarm Status

Each channel has 2 LEDs, warn (yellow), for low alarm status and alarm (red) for high alarm status. The operation of these LEDs are contro indication (gas concentration ) and the alarm settings(set points). During normal operation these LEDs are not illuminated, when an alarm condition is detected, its respective LED will illuminate in a flashing mode.

The warn LED can be be illuminated at the same time, depending on the level of the gas concentration detected. The LEDs will remain flashing until the alarm condition has passed or until the alarm reset pushbutton is pressed, the LEDs will remain illuminated but not flashing. If the alarm is programmed as latching, the LED will extinguish only after pressing the alarm reset when alarm condi point). Warn represents the first stage of alarm while alarm represents a more serious event.

illuminated by itself or both the warn and alarm LEDs can

pressed. If the alarm condition is still present after the alarm reset has been

lashing yellow, (solid yellow when reset button is pressed)

lled by the display

tions are not present (above or below the reset

Current Loops

During factory calibration, each current loop is exposed to a precise 4.00mA and 20.00mA input sig stores as digital values in EEPROM. These values are then used to determine the unknown input current during normal operation. The computed mA input value is then used for computing the digital display, where 4mA is equivalent to 0.00, an

nal which the CPU

d 20.00mA is equivalent to the programmed full-scale display.

WARNING

the programmable fault level. The factory default level is 3.5mA but can be pr

Applications such as oxygen deficiency monitoring must have the FAULT level programmed below 4 mA.

When the input signal reaches the fault level, the relays are turned off after the alarm reset button is pressed. Therefore sett

: In normal operation the 4

ing the alarm level below 4mA (0.0% v/v O2) will prevent the 7400 from shutting off the warn and

alarm relays accidentally.

-20mA input current loop is checked for a signal that falls down to or below

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ogrammed as low as 1.0mA.

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Oxygen applications monitoring both increasing AND decreasing oxygen concentration must have the INHIBIT level programmed below 4

signal reaches the inhibit level, the relays are turned off. Therefore setting the alarm level

below 4mA (0.0% v/v O2) will prevent the 7400 from shutting off the warn and alarm relays accidentally.

mA.

When the input

Current Loop Outputs

Each channel following conditions:

Alarm inhibit: Channel Off: Input Under range (below 4mA):

Internal Faults:

provides a 2 wire isolated current loop output which follows the current loop input, except during the

Alarm and Relay Operation

When an increasing or decreasing toxic, explosive, or oxygen deficient gas condition or flame is detected, the QuadScan II provides the means to alert to this potential ha associated with toxic or combustible gas atmospheres, while decreasing concentrations are associated with oxygen deficient atmospheres.

An alarm due to an increasing concentration is activated (changes sta above the set point and is inactive when the digital indication is at or below the reset point. Flame detectors provided by Scott Health & Safety provide an increased output analog signal when a flame is

Current loop output goes to programmed inhibit level. Current loop output goes to programmed inhibit

Current loop output follows the current loop input until it reaches the programmed fault level. At that stage, the value remains at the fault level no matter how far down the current input goes.

urrent loop output goes to the programmed fault mA level.

level.

zard. An increasing gas concentration is normally

te) when the displayed digital indication is at or

detected.

An alarm due to a decreasing concentration is activated (changes state) when the digital indication is at or below the set point and inactive when the digital indication is at or above the reset point.

Protection is provided by the activation (ch devices such as deluge systems, shut down systems, horns, beacons, etc. Two common relays (warn and alarm) each with 5A SPDT contacts provide this interface. An optional relay assemb can be configured for any channel.

Set Point - A programmed numerical value that is compared to the actual gas concentration or percentage of full

scale. When the concentration is equal to this numerical value, the associated relay activates (changes state) immediately. (See Set Delay).

Set Delay

concentration is established at or above the set point (toxic/ co point (oxygen deficient applications) for that specific programmed period of time.

(Off Time) - A delayed relay activation can be programmed for a specific time delay until a constant gas

ange of state) of alarm relays, which can be used to activate protective

mbustible or flame applications) or at or below the set

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ly provides eight additional relays that

Page 28

This timed delay can prevent nuisance alarms that may occur due to such things as lightening storms, etc. The off tim until the time expires.

e delay can be programmed for up to 10 seconds, and once activated the timer is decremented once a second

If the channel is not inhibited (channel status LED flashing), the associated relay(s) will be affected (non-energized relays

will be energized, and energized relays will be de energized). Timer activation can be set to 0 at which time relay activation will be immediate as described under Set Point.

Reset Point - A programmed numerical value, which is

compared to the actual ga concentration is equal to this numerical value, the associated relay de-activates (changes state) immediately (See Reset Delay). This is sometimes referred to as hysteresis.

s concentration. When the

Reset Delay

be programmed for a specific time delay to provide additional on time for exhaust fans or other corrective devices.

The on time delay can be programmed for up to 7200 seconds (2 hours) and once activated the timer is decremented once a second until th

When the reset timer has expired, the alarm(s) are deactivated and the channel warn and alarm LEDs are turned off, unless the alarm(s) are programmed for latching. Latching alarms require depressing the alarm reset in order to deactivate t while the reset timer is in the process of counting down will automatically expire the timer. The alarm will be deactivated. Timer activation can be set to zero (0) disabling this feature.

(On Time) - A delayed relay de-activation

e time expires.

he alarm. Pressing the alarm reset button

can

Figure 10 - Alar

m Set For Increasing or Decreasing Gas Concentrations

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Page 29

Latching Alarms

Latching alarms describe the behavior of the software emulating a self latching relay. The coil is energized through one of its own contacts, thereby holding itself energized. This typ circuit for the relay to be de-energized. This is the function of the alarm reset button.

energized. This describes a non-failsafe relay. When an alarm relay is programmed to be fail its coil remains energized in normal, no alarm condition, and de-energizes during an alarm. This permits the relay contacts to be used to detect power failures as well as their assigned function.

Safety Suggestion!

relays, failsafe, so that power failures may be sensed. A separate power source is required for the alarm devices, e.g. horns & lights, if used to detect power failures.

e of relay requires an interruption in the latching

This feature is implemented in software for alarms warn and alarms programmed with the latching option. Once an state even though the original alarm conditions have returned to normal. The LED and relay(s) will not be returned to normal until the alarm condition has subsided and the alarm reset button has been pressed.

Energized Relays (Fail Safe)

Normally, an alarm relay will remain de-energized until an alarm occurs, at which time the coil is

alarm has occurred, the associated LED and relay(s) will be held in their alarm

It is a safe practice to make all

optional remote relays programmed as fault

safe,

The common fault relay is energized (fai The warn and alarm relays by factory default are set for de-energized operation but can be programmed otherwise.

Note: Any relay, programmed as energized (fail safe), will have contact operation reversed to the te strip labeling. All labeled normally open (NO) contacts will operate as normally closed (NC) and all labeled (NC) contacts will operate as (NO).

Common Alarm Relays

There are four SPDT common alarm relays located on the CPU/power supply board.

Faul

t Relay Activated when any channel fault is detected.

Warn Relay Typically activated when any channel low alarm set point is exceeded. This relay can be

programmed to activate off any one channel or group of channels for either warn and/or alarm level.

larm Relay Typically activated when any channel high alarm set point is exceeded. This can be

programmed to activate off any one channel or group of channels for either warn and/or alarm level.

Horn Relay This relay can be programmed to activate off any

warn and/or alarm level.

lsafe) and cannot be programmed otherwise

rminal

one channel or group of channels for either

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Page 30

All relay contacts are rated 5 A 250VAC.

The warn and alarm relays can be programmed for energized (failsafe) or de-energized (non-failsafe). This is done in the SYS latching operation is programmed for each channel input. This is done in the CHANNEL MENU. When programmed for latching operation, the reset button must be depressed to release the relay from this condition, but will only rel condition has passed. It is possible to have one or more channels programmed as latching and one or more programmed as non-latching. When this happens, if channel inputs from both groups go into alarm/warn then the latching pro non-latching program.

Different corrective actions are normally required when sensor/transmitters are located in dissimilar areas. Set points could differ for the gases being monitored, therefore, the common relays will not provide the required results when this situation occurs. However Scott Health & Safety has anticipated such situations and can provide an optional remote relay assembly, allowing alternative alarm combinations.

TEM MENU. The latching or non

gram takes precedence over the

Resistive

ease the relay if the alarm

24 VDC

Fail Relay

The common fail relay is provid the energized state (failsafe). The remote relay assembly allows for a relay to be configured as a non failsafe fault output. There are no set or reset timers associated with fail alarms. When a fault is detected, fail alarms are ac conditions are cleared, fail alarms are immediately de activated.

When a fault condition is detected, the channel status LED will change from a solid green to a flashing yellow/green. It turns solid yellow if acknowled state from energized to de-energized.

If a channel is in a warn or a warn and alarm condition when a fault occurs on that channel, Table 1 defines the relay(s) state when in a latched or

ed only to be used in

Table 1 – Relay States

tivated immediately. When the fault

ged by pressing the reset button.) The common fail relay will change

unlatched programmed mode.

(when in a Latched or Unlatched

programmed mode)

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Page 31

By latching the existing alarm state, safety lights, horns and fans under control of the warn and alarm relays, they continue to operate, even if the current loop has shorted or opened, or the transmitter has ceased to operate.

When an operator has determined that conditions are actually safe, the alarm reset may be pressed to de-activate alarm LEDs, and warn and alarm relays on that channel. This can only be determined after the fault has been corrected, as the channel displ shorts or opens occurring on the current loop input will not cause false alarms. This works only if the short or open causes the current loop input to drop below the pr loop output drives the programmed fault mA level.

ay indicates –24 while the fault condition exists. By preventing new alarms, accidental

ogrammed mA fault level. During any fault conditions, the current

Horn and Horn Relay

An internal horn will sound when a warn or alarm condition exists IF THE HORN RELAY WAS PROGRAMMED FOR THIS OPERATION. the CPU/power supply board will change state. Pressing the alarm reset button, regardless of the gas condition, silences the internal horn and changes the state of t alarm condition subsides and then reoccurs, or a new alarm occurs.

Note: The horn and horn relay will not be active for an inhibited channel.

This programming is done in the SYSTEM MENU. At the same time, the horn relay located on

Inhibiting Alarms

All alarm relays, warn, individually. There are several methods for inhibiting alarms:

Power On Reset-A timed inhibit mode of 65 seconds is initiated when the unit is first powered on

sensors to stabilize and prevent false alarms.

Reprogrammed Channel-The channel enters a timed inhibit period of 35 seconds upon exiting the

programming routine. The process of selecting and programming a channel automatically provides an in condition when the channel is programmed alarms for improperly configured changes. Note that alarms are not processed on a channel being programmed and that the channel’s relays remain

alarm and fail for an entire channel can be inhibited, but it is not possible to inhibit alarms

he relay. The horn and horn relay will not activate again until the

. This permits

hibit

“ON”

from the Channel Menu. This provides immunity against false

in their current state until exiting the programming routine.

Programmed Channel Inhibit-A channel may be permanently programmed into an inhibit mode for an indefinite

period when the even when power is removed and then restored. This is provided for performing maintenance on a specific channel. Note: The associated remote relays will also be inhibited for this specific channel.

System Inhibit-All channels can be

Menu. This is provided for performing maintenance on the total system. Note: All remote relays are inhibited when this selection is made.

“IHB”

is selected from the Channel Menu. Once programmed, the channel w

inhibited at one time by programming the

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“ALL”

ill remain inhibited

selection from the System

Page 32

Current Loop Input-A channel is inhibited when the current loop input is equal to the programmed inhibit level

(factory default is 3.6mA). The channel inhibit is immediately removed when the current loop input is outside the tolerance of ±0.25mA.

Sensor Damping Constant

Provides a damping time con of time it will take the unit to reach 63% of its final value when a step change occurs to a known concentration of gas. The time to reach 95% of final value may be estim time constant, the more unstable the reading may be.

Zero DB

Provides a dead band programmable from 0 to 5 % of full scale for a specific channel. The percentage of full scale selected wi

ll not allow the “0” display (and 4mA output) to change until the selected percentage has been exceeded.

stant which allows the program selection from 0 to 10 seconds. Damping is the amount

ated by multiplying this setting by 3. Note: the lower the damping

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Page 33

Setup and Programming

Power Up

When power is applied to the QuadScan II the following LCD displays are shown, also the internal horn sounds for 2 seconds:

¦ ¦ ¦ ¦ ¦ ¦ ¦

Shown for 2 seconds

Blank for 3 seconds

MODEL: 7400 VERSION *

Shown for 5 seconds * Current Software Version will be displayed.

% LEL

Active Default Gas Concentrations

All channels are inhibited for 65 seconds at power up, this includes all alarm LEDs, and LEDs flash yellow and green while in the inhibit mode. After the 65 seconds times out the alarm LEDs and relays become active. The channel status LEDs turns to a solid green. If an alarm condition exists at this time, the alarm r

elays will change state and the internal horn will sound. Push the silence pushbutton, to silence the horn. Relay

contact wiring should not be connected at this time, therefore any external devices will not be effected. The function switches shown below a

SETUP:

right in the programming of an alpha/numeric string.

UP/DOWN:

menus or menu options.

This key is used to enter into the programming mode. It is also used to move one position to the

These keys are used to change a value in an alpha

re used to program the instrument.

/numeric string or to step through the various

relays. The channel status

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Page 34

ENTER:

accepts a value and steps you back out of the programming of that particular menu.

ESC

eventually take you out of the programming mode and allow you to save (or not save) the programming.

SILENCE/RESET:

resets any latched relays and causes flashing fault, warn or alarm LEDs to go to steady state. Finally, in the programming of an alpha/numeric string, this key will delete a character. The only exception is the character in the string.

This key is used to enter in a particular menu to use the UP/DOWN keys. The ENTER key also

APE:

This key is used to step back one menu level. Pressing the ESCAPE key repeatedly will

This key is used to silence the local horn as w

ell as deactivate the horn relay. It also

very first

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Page 35

Programming Setup

The following Default Display is the starting point for the initial system programming

0 % LEL 0 % LEL 0 % LEL 0 % LEL

ess the

Press the

Channel 1 * SETUP *.

DOWN

button.

button to return to

0 % LEL 0 % LEL

* SETUP *

0 % LEL

Press the The following Display is shown for 2 seconds.

After the 2 seco following Display is shown. NOTE: The shaded area on the LCD denotes a

Display

SETUP

SYSTEM UNLOCKED

that requires

button to proceed.

0 % LEL 0 % LEL 0 % LEL

nds have timed out, the

Action

* SETUP *

0 % LEL 0 % LEL 0 % LEL

Flashing

0 % LEL 0 % LEL 0 % LEL

* SETUP *

Channel 1

sequences, all other channels are programmed in the same manner.

Press

will be used for all programming

* SETUP *

0 % LEL 0 % LEL 0 % LEL

ENTER to move to the programming menus.

Push the UP or channel. Press the

Press the

DOWN

button.

button to scroll through each

DOWN

button.

0 % LEL

* SETUP *

0 % LEL 0 % LEL

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Page 36

SECU

After pressing

Note: Channel is now in the Inhibit mode. LED is flashing yellow and green.

Press the UP or DOWN function. Press the

RITY MENU

ENTER,

the following Display appears.

button to scroll through each

DOWN

ECURITY MENU

0 % LEL 0 % LEL 0 % LEL

button.

SYSTEM MENU

Press the

DOWN

but

ton.

0 % LEL 0 % LEL 0 % LEL

Press the

DOWN

Press the

button.

SECURITY MENU

0 % LEL 0 % LEL 0 % LEL

ENTER

button

SECURITY OPTS

0 % LEL 0 % LEL 0 % LEL

Press the UP or DOWN through each function. Press the button.

button to scroll

LOCK SYSTEM

0 % LEL 0 % LEL 0 % LEL

DOWN

CHANNEL MENU

0 % LEL 0 % LEL 0 % LEL

NOTE:

the

MENU, Display

Pressing the previous menu, therefor

ESCAPE Channel Display.

The to a previous function to make changes without loosing all previous programming selections

From any programming point or function within

SECURITY MENU, SYSTEM MENU

you can revert back to the

by pr

ess

ing

ESCAPE.

ESCAPE

a number of times to reach the

ESCAPE

mode provides an easy means to revert

button always reverts to the

e, you may need to select

Active Channel

CHANNEL

Active

Press the

DOWN

button.

CHANGE PSWD

0 % LEL 0 % LEL 0 % LEL

button.

LOCK SYSTEM

0 % LEL 0 % LEL 0 % LEL

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Page 37

Press the

Press the UP or DOWN button to scroll through numbers from

select a code number.

with a code 0000 displayed, the unit will report NOT ACCEPTED and place you back in the Security OPTS menu. A number from 0001 9999 must be entered if you wish system.

use

factory.

ENTER

Remember this number for later

. If you forget your password, contact the

button.

ENTER CODE 0000

0 % LEL 0 % LEL 0 % LEL

0000 to 9999 to

If you press

to lock the

ENTER

Push the UP or through the menu. Push the UP button.

To change the

ENTER

button.

DOWN

buttons to scroll

CHANGE PSWD

0 % LEL 0 % LEL 0 % LEL

PASSWORD

, press the

ENTER OLD: 0000

0 % LEL 0 % LEL 0 % LEL

Push the UP or old number. Press the displayed which is an incorrect number.

DOWN

buttons to select your

DOWN

but

ton, 9999 is

Press the UP button.

Press the shown for 2 seconds.

ENTER

After the 2 seconds have timed out, this display is shown.

ENTER CODE 0001

0 % LEL 0 % LEL 0 % LEL

button. This display is

SYSTEM LOCKED

0 % LEL 0 % LEL 0 % LEL

SECURITY OPTS

0 % LEL 0 % LEL 0 % LEL

ENTER OLD

Press the shown for 2 seconds.

ENTER

button. This display is

INCORRECT

0 % LEL 0 % LEL 0 % LEL

: 9999

0 % LEL

0 % LEL 0 % LEL

After the 2 seconds have timed out, this display is shown.

ENTER OLD: 0000

0 % LEL 0 % LEL 0 % LEL

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Page 38

Press the UP button and 0001 is displayed.

ENTER OLD: 0001

Press the shown for 2 seconds.

After the 2 seconds have timed out, this display is shown.

ENTER

0 % LEL 0 % LEL 0 % LEL

button. This display is

CORRECT

0 % LEL 0 % LEL 0 % LEL

After the 2 seconds have timed out, this display is shown.

SECURITY OPTS

Press UP or

SECURITY OPTS MENU.

button.

Press the UP button.

DOWN

0 % LEL 0 % LEL 0 % LEL

buttons to scroll the

CHANGE PSWD

0 % LEL 0 % LEL 0 % LEL

Press the

ENTER NEW: 0000

Press the UP button and 0001will appear. Press the

Press the UP button ag Press the shown for 2 seconds.

ENTER

0 % LEL 0 % LEL 0 % LEL

button.

button

PSWD CHANGED

- ENTER: 0000 0 % LEL 0 % LEL 0 % LEL

ain 0001 will appear.

This display is

% LEL 0 % LEL 0 % LEL

UNLOCK SYSTEM

Press the

Press the UP button.

ENTER

ENTE

ENTER CODE: 0001

0 % LEL 0 % LEL 0 % LEL

button.

R CODE 0000 0 % LEL 0 % LEL 0 % LEL

0 % LEL 0 % LEL 0 % LEL

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Page 39

Press the shown for 2 seconds

After the 2 seconds have timed out, this display is shown.

Press the

ENTER

ESCAPE

button. This display is

SYSTEM UNLOCKED

0 % LEL 0 % LEL 0 % LEL

SECURITY OPTS

0 % LEL 0 % LEL 0 % LEL

button.

This is the starting point for programming the

SYSTEM MENU.

Go to the SYSTEM MENU SECTION.

SECURITY MENU

This concludes the programming.

The System must be

programming the instrument. If the instrument is

locked during the programming sequence all

programming will be lost a

. Press the

CAUTION

permitted.

DOWN

0 % LEL 0 % LEL 0 % LEL

SECURITY MENU

UNLOCKED

saving will not be

button.

SYSTEM MENU

0 % LEL 0 % LEL 0 % LEL

when

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Page 40

SYSTEM MENU

The System Menu programs those settings common to the wh

ole unit and not for individual channel inputs.

Press the

SYSTEM MENU

ENTER

button.

VERSION *

0 % LEL 0 % LEL 0 % LEL

Press the UP button.

INHIBIT: NONE

Press the

Push the UP or through two choices: the UP button.

ENTER

DOWN

button.

INHIBIT:

0 % LEL 0 % LEL 0 % LEL

buttons to scroll

ALL

NONE

. Press

Press the UP button.

ADJUST CONTRAST

Press the stops flashing. Press and hold either the or

DOWN

your specific location.

Press the

ENTER

buttons to adjust the

ADJUST CONTRAST

ENTER

0 % LEL 0 % LEL 0 % LEL

button. Channel 1 Display

0 % LEL 0 % LEL 0 % LEL

button.

contrast for

Press the

ENTER

INHIBIT: ALL

0 % LEL 0 % LEL 0 % LEL

button.

INHIBIT:

0 % LEL 0 % LEL 0 % LEL

ENTER

INHIBIT: ALL

0 % LEL 0 % LEL 0 % LEL

ALL

button

ADJUST CONTRAST

0 % LEL 0 % LEL 0 % LEL

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Page 41

* Current Software Version will be displayed.

NOTE: All alarm relays and alarm LEDs will be inhibited when the programming sequence is returned to the active channel d addition, the analog 4-20mA output is set to the programmed inhibit level. This selection would allow you to wire all external alarms or shutdown devices without concern of false alarms.

To change back to the

MODE,

Press the UP button.

press the

NONE INHIBIT

ENTER button

INHIBIT:

0 % LEL 0 % LEL 0 % LEL

ALL

isplay. In

Press the

The other mo

ENTER

RELAY: CMN FAIL

ENTER

FAIL RELAY

des. Press the

button.

FAILSAFE:

cannot be programmed to

F1 F2 F3

0 % LEL 0 % LEL 0 % LEL

ENTER

0 % LEL 0 % LEL 0 % LEL

YES

button.

INHIBIT:

Press the

Press the UP button.

ENTER

button.

INH

SET LOCAL RELAYS

NONE 0 % LEL 0 % LEL 0 % LEL

IBIT: NONE 0 % LEL 0 % LEL 0 % LEL

0 % LEL 0 % LEL 0 % LEL

The common fault relay is factory set to activate if any channel detects a fault. Press the

ENTER

Press the UP button.

button.

RELAY: CMN FAIL

0 % LEL 0 % LEL 0 % LEL

RELAY:

CMN WARN 0 % LEL 0 % LEL 0

% LEL

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Page 42

Press the

Press the UP or DOWN through the menu, NO or select

“FAILSAFE: YES” configures the relay to be normally energized. This is energized in a non-alarm state. Press the

ENTER

button.

FAILSAFE:

0 % LEL 0 % LEL 0 % LEL

YES.

Press the UP button.

FAILSAFE:

0 % LEL 0 % LEL 0 % LEL

W1 W2

0 % LEL 0 % LEL 0 % LEL

buttons to scroll

YES

. For example,

YES

ENTER

button.

Press

the

ENTER

button.

RELAY:

0 % LEL

CMN WARN

0 % LEL 0 % LEL

Press the UP button.

RELAY:

CMN ALARM 0 % LEL 0 % LEL 0 % LEL

Press the

ENTER

button.

FAILSAFE:

0 % LEL 0 % LEL 0 % LEL

Press the UP or DOWN through the menu, NO or select

YES.

Press the UP button.

buttons to scroll

YES,

for example

W1 W2 setting for the common Warn relay. It indicated if the Warn level is reached on any channel (1-4), then the common warn relay will activate. “ The warn relay can be user programmed to ope

rate with any channel or group of channels. In addition AND/OR logic can be configured. Finally, the relay can be programmed to activate off the Warn or Alarm setpoint. See the programming examples in the Appendix for additional information.

W4 is the factory default

” indicates and “OR” logic.

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Press the

FAILSAFE:

ENTER

A1 A2 A3

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

YES

Page 43

A1 A2 A3 the common Alarm relay. It indicates if the

larm level is reached on any channel (1-4),

then the common alarm

relay will activate. The “ logic. Like the warn relay, the alarm relay can be configured to activate off any channel and with AND/OR logic. See the programming examples in the Appendix.

A4 is the factory default setting for

” indicates an “OR”

If a REMOTE RELAY ASS’Y has been provided with the Receiver/Controller. Refer to Optional Remote Relay.

Press the UP button.

TIME: 14.45

Press the

ENTER

button.

0 % LEL 0 % LEL 0 % LEL

Press the

ENTER

ESCAPE

button.

RELAY:

SET LOCAL RELAYS

button.

SET REMOTE RELAY

CMN ALARM 0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

TIME: 14:46

Press the UP or DOWN correct time. Press the ENTER

Press the UP button.

0 % LEL 0 % LEL 0 % LEL

buttons to select

TIME: 14:47

0 % LEL 0 % LEL 0 % LEL

DATE: 7/3/2001

0 % LEL 0 % LEL 0 % LEL

button.

the

This programmi time.

ng mode will be passed at this

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Press the

ENTER

button.

DATE:

0 % LEL 0 % LEL 0 % LEL

7/3/2001

Page 44

Press the UP or DOWN

correct Month, Day and Year.

buttons to select the

This is the starting point to start programming

the

CHANNEL MENU

DATE:

Press the

Press the UP button.

ENTER

button.

DATE: 8/16/2001

VERSION *

8/16/2001 0 % LEL 0 % LEL 0 % LEL

0 % LEL 0 % LEL 0 % LEL

Go to the

*Current Software Version will be displayed.

CHANNEL MENU SECTION.

Press the

ESCAPE

DOWN

button.

SYSTEM MENU

0 % LEL 0 % LEL 0 % LEL

button.

CHANNEL MENU

0 % LEL 0 % LEL 0 % LEL

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Page 45

CHANNEL MENU

The Channel Menu programs those settings specific to an individual channel.

Press the

ENTER

CHANNEL MENU

0 % LEL 0 % LEL 0 % LEL

button.

ON/OFF/IHB: ON

button.

ON/OFF/IHB:

0 % LEL 0 % LEL 0 % LEL

The analog output (4-20mA) will be set to the programming inhibit level. No relay contacts will activate from Channel 1. (Channel 1 was used in this example.)

To select

Press the UP button.

Press the

OFF,

ENTER

press the

ON/OFF/IHB:

button.

ENTER

0 % LEL 0 % LEL 0 % LEL

button

IHB

OFF

Press the UP or DOWN menu.

Press

the

ENTER

ON/OFF/IHB:

0 % LEL 0 % LEL 0 % LEL

button.

ON/OFF/IHB: IHB

0 % LEL 0 % LEL 0 % LEL

buttons to scroll the

IHB

ON/OFF/IHB: OFF

Turning a channel signal (4-20mA) to the programming inhibit level. No relay contacts will activate from this channel.

To select the factory default “ON”

ENTER ON

button and toggle the UP button until

is displayed. Press the

0 % LEL 0 % LEL 0 % LEL

OFF

drives the analog

ENTER

, press the

button.

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Page 46

ON/OFF/IHB: OFF

Press the

Press the UP button.

button.

ON/OFF/IHB: ON

SENSOR: 4 – 20 mA

0 % LEL 0 % LEL 0 % LEL

Press the UP or DOWN through the

Select the example, use

Press the

FULL SCALE RANGES

1.00 to 10.00

10.0 to 100.0 100 to 1999

FULL SCALE

50.0

FULL SCALE: 50.0

0 % LEL 0 % LEL 0 % LEL

ENTER

button.

FULL SCALE

0 % LEL 0 % LEL 0 % LEL

buttons to scroll

required. For

: 50.0

This setting cannot be changed.

Press the UP button.

Press the

ENTER

FULL SCALE: 100

0 % LEL 0 % LEL 0 % LEL

button.

FULL SCALE: 100

0 % LEL 0 % LEL 0 % LEL

Press the

Press the UP button

ENTER

button.

UNITS: %

0 % LEL 0 % LEL 0 % LEL

UNITS:%

0 % LEL 0 % LEL 0 % LEL

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Page 47

Press the UP or DOWN UNITS: NONE, PPB, PPM or %.

Note: If less than 4 Channels active

ould be selected for the inactive Channels. For example, use but

ton.

Press the

ENTER

buttons to scroll the

PPM.

Press the DOWN

UNITS:

button

UNITS: PPM

PPM 0 % LEL 0 % LEL 0 % LEL

0 % LEL 0 % LEL 0 % LEL

, NONE

To move from the #1 position to the right to #2 position, press the

Each time you press the move 1 position to the right until you reach #6 position and then you revert back to #1 p

osition.

Use the characters. When you have selected the required this example use

Press the

UP/DOWN

TAG

SETUP

button to change

, press the DOWN

H2S

HEL

button.

SETUP button, you

and select

0 % LEL 0 % LEL 0 % LEL

button. For

Press the UP button.

TAG: LEL

Press the

NOTE: A Symbols or Numbers in any combination.

A –

ENTER

LEL

TAG

Z, ! " # $ % & ' ( ) * +

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

can list up to 6 Letters,

HEL

Press the

Pre

ss the

DOWN

H2L

SETUP

0 % LEL 0 % LEL 0 % LEL

button to select 2.

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

, - . / 0 – 9 : ; < = > ?

x x

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Page 48

Press UP button to select

TAG: H2

Press the UP button.

Press the

Press the UP or DOWN 0 to 10 UP

button

ENTER

. For this example, select 3. Press the

S 0 % LEL 0 % LEL 0 % LEL

DAMPING (S): 2

0 % LEL 0 % LEL 0 % LEL

button.

DAMPING (S): 2

0 % LEL 0 % LEL 0 % LEL

buttons to select from

Press the UP button.

Press the

Press the UP or DOWN 0 to 5

Press the UP button.

ENTER

. For this example, select 2.

ZERO DB (%FS): 0

0 % LEL 0 % LEL 0 % LEL

button.

ZERO DB (%FS): 0

ZERO DB (%FS): 2

0 % LEL 0 % LEL 0 % LEL

buttons to select from

0 % LEL 0 % LEL 0 % LEL

Press

the

DAMPING (S): 3

ENTER

button.

DAMPING (S): 3

0 % LEL 0 % LEL 0 % LEL

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Press the

ENTER

ZERO

button.

DB (%FS): 2 0 % LEL 0 % LEL 0 % LEL

Page 49

Press the UP button.

Press the

Press the UP or DOWN

2.0 to 20.0

Press the

ENTER

. For this example, select

DOWN

INHIBIT (mA): 3.6

button.

INHIBIT (mA): 3.6

0 % LEL 0 % LEL 0 % LEL

button.

0% LEL 0 % LEL 0 % LEL

buttons to select from

2.5.

Press the

Press the UP or DOWN

0.1 to 20.0

Press the UP button

Press the

ENTER

. For this example, select

ENTER

button.

FAULT (mA) 1.0

0 % LEL 0 % LEL 0 % LEL

FAULT (mA): 2.0

0 % LEL 0 % LEL 0 % LEL

button.

buttons to select from

2.0

Press the

Press t

he UP button.

INHIBIT (mA): 2.5

0 % LEL 0 % LEL 0 % LEL

ENTER

button.

INHIBIT (mA): 2.5

0 % LEL 0 % LEL 0 % LEL

FAULT (mA):3.6

% LEL 0 % LEL 0 % LEL

FAULT (mA): 2.0

Press the UP button.

Press the

ENTER

0 % LEL 0 % LEL 0 % LEL

SETUP WARNING

0 % LEL 0 % LEL 0 % LEL

button.

WARN SET: 25

0 % LEL 0 % LEL 0 % LEL

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Page 50

Press the

Press the UP or DOWN 1 to 120

Press the

applications should never set an alarm level above 60% LEL.

ENTER

. For this example, select

DOWN

button.

WARN

button.

WARN SET: 22

SET: 25 0 % LEL 0 % LEL 0 % LEL

buttons to select from

0 % LEL 0 % LEL 0 % LEL

NOTE: LEL

22.

Press the

Press the UP or DOWN 1 to 120

the

For rising gas ala below the For falling gas alarms (oxygen deficiency), set the reset value above the

ENTER

. For this example, select

DOWN

button.

WARN

button.

WARN RES: 20

0 % LEL 0 % LEL 0 % LEL

rms, set the reset value value as in this example.

WARN RES: 18

0 % LEL 0 % LEL 0 % LEL

buttons to select from

18.

Press

WARN

value.

Press the

Press the UP button.

ENTER

button.

WARN SET: 22

WARN RES: 20

0 % LEL 0 % LEL 0 % LEL

Press the

Press the UP button.

ENTER

button.

WAR

WARN DLY: 0

N SET: 18 0 % LEL 0 % LEL 0 % LEL

0 % LEL 0 % LEL 0 % LEL

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Page 51

Press the

Press the UP or DOWN 0 to 10

Press the UP button.

ENTER button.

WARN DLY: 0

0 % LEL 0 % LEL 0 % LEL

seconds. For this example, select 2.

WARN DLY: 2

0 % LEL 0 % LEL 0 % LEL

buttons to select from

Press the

Press the UP or DOWN 0 to 7200

Press the UP button.

ENTER

. For this example, select

button.

WAR

0 % LEL 0 % LEL 0 % LEL

WARN HLD: 150

0 % LEL 0 % LEL 0 % LEL

N HLD: 0

buttons to select from

150

Press the

Press the UP button.

ENTER

button.

WARN DLY: 2

WARN HLD: 0

0 % LEL 0 % LEL 0 % LEL

Press the

Press the UP button.

Press the

ENTER

button.

WARN HLD: 150

0 % LEL 0 % LEL 0 % LEL

WARN LAT: NO

0 % LEL 0 % LEL 0 % LEL

button.

WARN LAT: NO

0 % LEL 0 % LEL 0 % LEL

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Page 52

Press the UP or DOWN buttons to select

Press the UP button.

Press the

ENTER

ESCAPE

WARN LAT:

0 % LEL 0 % LEL 0 % LEL

button.

WARN LAT: YES

0 % LEL 0 % LEL 0 % LEL

button.

YES

Press the

Press the UP or DOWN 1 to 120

the UP button.

should never set an alarm level above 60% LEL.

ENTER

. For this example, select

button.

ALARM SET: 50

NOTE: LEL applications

ALARM SET: 52

0 % LEL 0 % LEL 0 % LEL

buttons to select from

0 % LEL 0 % LEL 0 % LEL

52.

Press

SETUP WARNING

Press the UP button.

SETUP ALARM

Press the

ENTER

button.

ALARM SET: 50

0 % LEL 0 % LEL 0 % LEL

Press the

Press the UP button.

ENTER

button.

ALARM SET: 52

ALARM RES:45

0 % LEL 0 % LEL 0 % LEL

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Page 53

Press

the

ENTER

button.

ALARM RES: 45

Press the UP or DOWN 1 to 120

Press the

For rising gas alarms, set the reset value below the For falling gas alarms (oxygen the reset value above the

. For this example, select

DOWN

WARN

0 % LEL 0 % LEL 0 % LEL

buttons to select from

button.

value, as in this example.

ALARM RES: 42

WARN

0 % LEL 0 % LEL 0 % LEL

42.

efficiency), set

value

Press the

Press the UP or DOWN 0 to 10

Press the UP button.

Press the

ENTER

seconds. For this example

ENTER

button.

ALARM DLY: 0

0 % LEL 0 % LEL 0 % LEL

ALARM DLY: 5

0 % LEL 0 % LEL 0 % LEL

button.

ALARM DLY: 5

0 % LEL 0 % LEL 0 % LEL

buttons to select from

, select 5.

Press the

Press the UP button.

ENTER

button.

ALAR

ALARM DLY: 0

M RES: 42 0 % LEL 0 % LEL 0 % LEL

0 % LEL 0 % LEL 0 % LEL

Press the UP button.

ALARM HLD: 0

Press the

ENTER

button.

ALARM HLD: 0

0 % LEL 0 % LEL 0 % LEL

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Page 54

Press the UP or DOWN 0 to 7200

Press the UP button.

Press the

Press the UP button.

. For this example select

ALARM HLD:100

0 % LEL 0 % LEL 0 % LEL

ENTER

button.

ALARM HLD: 100

0 % LEL 0 % LEL 0 % LEL

ALARM LAT: NO

0 % LEL 0 % LEL 0 % LEL

buttons to select from

100

Press the

Press

Press the UP button.

the

ENTER

ESCAPE

button.

ALARM LAT: YES

SETUP ALARM

CAL LOOP INPUT

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

Press the

Press the UP or DOWN Press the UP button.

ENTER

button.

ALARM LAT:

0 % LEL 0 % LEL 0 % LEL

buttons to select

YES

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Press the

NOTE: The following message scrolls on the Channel 1 display area

Input 4 mA at TB1 6,7

ENTER

button.

SCROLL

0 % LEL 0 % LEL 0 % LEL

Page 55

Press the appears for 3 seconds.

After the time out, the following scrolls on the Channel 1 display area

ENTER

OKAY

button. This display

0 % LEL 0 % LEL 0 % LEL

Inp. 20mA at TB1 6,7.

SCROLL 0 % LEL 0 % LEL 0 % LEL

SCROLL

0 % LEL

Note: Channels 2, 3, and 4 have different

TB5

designations.

Press the

NOTE: The following message scrolls on the Cha

Use UP/DN: Adjust to 4.00 mA

ENTER

nnel 1 display area.

0 % LEL 0 % LEL

button.

Note: Channels 2, 3, and 4 have different TB1

and

TB2 designations.

Press the

Press the UP button.

ESCAPE

AL LOOP INPUT

CAL LOOP OUTPUT

button.

0 % LEL 0 % LEL 0 % LEL

SCROLL

0 % LEL

Press the

NOTE: The following message scrolls on the Channel 1 display area.

Use UP/DN: Adjust to 20.00 mA.

ENTER

0 % LEL 0 % LEL

button.

SCROLL

0 % LEL 0 % LEL 0 % LEL

Pres

s the

ENTER

NOTE: The following message scrolls on the Channel 1 display area

button.

MA out = TB 5 3, 4.

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Page 56

Press the

ENTER

button.

CAL LOOP OUTPUT

0 % LEL 0 % LEL 0 % LEL

ESCAPE button.

CHANNEL MENU

% LEL 0 % LEL 0 % LEL

ESCAPE

button.

SAVE SETUP? YES

0 % LEL 0 % LEL 0 % LEL

NOTE:

At this point all ALARMS are active.

Press the

ENTER

button.

* SETUP *

0 % LEL

101

0 % LEL 0 % LEL

Press the program

DOWN

Channel 2.

button. This is the start to

102

0 % LEL

* SETUP *

0 % LEL 0 % LEL

All Channels are programmed in the same manner as Channel 1.

For this example select

ENTER

2 seconds.

button. This display is shown for

YES.

Press the

SYSTEM SAVED

0 % LEL 0 % LEL

0 % LEL

After the time out period, the display reverts to the default display.

0 % LEL 0 % LEL

100

0 % LEL 0 % LEL

When the programming is completed for all active channels, the following can be implemented.

At this time if you wish to setup a

CODE,

Wiring can now be completed to all external alarm and/or shutdown devices.

When the wiring is completed, refer to The Inh

ibit section in the System Menu to remove

the

INHIBIT

LCD is flashing

refer to the Security Menu.

from all channels, if the inhibit

SECURITY

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Page 57

Optional Remote Relays

General

The optional remote relay assembly offers a unique alarm system for all alarms generated from the QuadScan II, which include warn, alarm and fail. Warn refers to the first level of alarming while alarm refers to the second level (more serious) of alarming. The unit inputs the alarm signals, which can be programmed to provide a variety of relay configurations to change th alarm condition exists. A terminal strip provides the interface between the relay contacts and the customer shut down or corrective devices. All the relay configurations are programmed from the display/function assembly. B evaluating backup power sources.

Specific

The QuadScan II remote relay assembly (P/N 096-2691) has 3 major components:

NEMA-4X enclosure Circuit board Interface cable

e state of the 8 relays, when an

e sure to consider the additional current requirements for all optional when

NEMA-

The enclosure measures 4-3/4" H x 6-23/32 " W x 3-3/16 "D. It provides a watertight, dust tight and corrosive resistant enclosure for indoor or outdoor mounting.

Circuit Board

The circuit board (P/N 096-2688) provides terminal blocks and 6 – SPST The 7400 provides the power required to switch the relays. The circuit board, relays and terminal blocks can be reached by removing 4 inset Phillips head screws from the cover and it lifting off. TB 9 provides the terminal i

TB 10 provides the terminal interface between the remote relay assembly and the required customer shutdown or corrective action devices. E

4X En

closure

nterface between the remote relay assembly and the QuadScan II.

Terminals 1 – 4

5 Ground 6

Signal inputs.

+ Volts

nclosure orientation for the terminal strip and relay description is

relays and 2 – DPDT relays.

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Page 58

with the cable or conduit entry at the bottom of the enclosure. TB 10 terminals number from 1 to 30 from left to right and provide NC, C and NO relay contacts. Relays are numbered 1 to 8

from right to left.

Cable

Ten feet of 6 conductor (24AWG) wire (P/N 069-0065) is supplied standard with the relay assembly (P/N 069-2651). Additional cable may be ordered separately. A maximum of 50 feet of cable can be used between the remote relay and

the 7400.

Figure 11 - Remote Relay Enclosure – Front View

Installation

Location

The location of the remote relay assembly has the same requirements as the QuadScan II. Refer to the Installation section. The unit is mounted in the general area of separation of 50 feet (16 meters). A 10 foot (3 meter) cable is supplied standard with the unit. Note: Other cable lengths are available up to 50 feet. Contact Scott Health & Safety for pricing information.

Mounting

The e

nclosure dimensions are 4-3/4" H x 6-23/32" W x 3-3/16" D and weighs 1 pound. Refer to for mounting hole locations. Within the cable length, locate the 4 mounting holes at the desired location and drill the holes for the proper screw size. Usin suitable structure.

the QuadScan II with a maximum

Figure 12

g #8 screws, mount the enclosure to the wall or other

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Page 59

Figure 12 - Remote Relay Assembly Outline Dimensional & Installation Drawing (P/N 096-2691)

Wiring

Remove the enclosure cover exposing the terminal blocks. appropriate function and wire designation to implement correct wire hook up. Refer to terminal block layout.

The supplied 10-foot cable should be cut to the correct length and stripped to make the ter connections. The cable wires are connected, point-to-point. Refer to wiring, cabling and conduit runs must meet local electrical codes and meet the National Electrical Code.

The terminal blocks are labeled with the

Figure 12

Figure 13

for wiring information. All

for

minal

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Page 60

Figure 13 - Interconnect Wiring

Between 7400 & Remote Relay Assembly

of 116

Page 61

Remote Relay Operation

The remote relays operate from the alarm signals from the QuadScan II. Each of the 1 through 8 relays can be programmed for various combinations of alarm inputs. The progra configurations for zone applications as well as many others. Refer to

the remote relay settings

mming allows AND / OR

Figure 14

for the factory default of

Figure 14 - Remote Relay Settings Factory Default

The remote relays can be programmed to from each other. The unit is shipped with factory default settings in place for each relay. The defaults are as follows:

Relay 1 – W1 Relay 4 – A2 Relay 7 – W4

Relay 2 – A1 Relay 5 – W3 Relay 8 – A4

any specific alarm condition and are activated independently

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Relay 3 – W2 Rela

y 6 – A3

Page 62

If the default setting is not changed for a specific relay(s), then that relay will be activated when the default alarm condition exists. For example if Relay 1 is programmed to activate when a specific combination of a these relays will also be activated if the alarm combination for Relay 1 includes that specific relay or relays.

larms exist and Relays 2 through 8 have not been changed from the default settings then

For the customer to customize a specific relay, that r requirements. The basis for the programming procedure for a specific relay are the alarms warn (W), alarm (A) and fail (F) which are generated within the QuadScan II for each channel when a gas or fail condi

tion is detected on that channel.

The programming functions available for each relay are:

W, A, F, 1, 2, 3, 4, &, , (, ).

The following explains the letters, numbers and symbols.

W, A, F

1, 2, 3, 4 Refers to the channel number &

(, )

Alarm conditions Warn (low alarm), Alarm (high alarm) and or shorted)

AND Function: i.e W1 & W2 OR Function i.e. W1 W2 To separate one group of functions from another group of functions

elay must be programmed for the desired customer

Fail

(input loop open circuit

The following examples explain the var

If RMT RLY 1 is programmed as 1 must be in alarm

If RMT RLY 3 is programmed as (A) from Channel 1 must be in alarm from Channel 3 must be in alarm

AND

Warn (W) from Channel 2 must be in alarm.

ious functions.

W1 & W2,

( A1 & A2 ) (W3 & A4 ),

AND

alarm (A) from Channel 4 must be in alarm.

to change the state of RMT RLY1, warn (W) from Channel

to change the stat

alarm (A) from Channel 2 must be in alarm OR warn (W)

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e of RMT RTL3, alarm

Page 63

All remaining channels are programmed

Remote Relay Setup and Programming

The following defau programming the Remote Relays.

Press the seconds.

SETUP

lt display is the starting point for

0 % LEL 0 % LEL 0 % LEL 0 % LEL

button. This display is shown for 2

SYSTEM UNLOCKED

0 % LEL 0 % LEL 0 % LEL

Press the

Press the UP button to scroll to this display. Note: This menu is only displayed if the remote relay assembly is physically hooked up to the 7400.

DOWN

ENTER

button

SYSTEM MENU

SET REMOTE RELAY

0 % LEL 0 % LEL 0 % LEL

button.

VERSION *

0 % LEL 0

% LEL

0 % LEL

0 % LEL 0 % LEL 0 % LEL

After the 2 seconds timed out, this display is shown.

Press the

* SETUP*

0 % LEL 0 % LEL 0 % LEL

ENTER

button.

SECURITY MENU

0 % LEL 0 % LEL 0 % LEL

Press

the

ENTER

Note:

in the same manner as Channel 1.

button.

RELAY:

0 % LEL 0 % LEL 0 % LEL

REM RLY 1

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Page 64

Press the

ESCAPE

must press

Press the UP or DOWN

*Current Software Version will be displayed

ENTER

button to back

YES

can be selected by pressing the button, but for this example the default NO will be used.

button. Note: You can not use the

out of this submenu. You

ENTER.

FAILSAFE:

0 % LEL 0 % LEL 0 % LEL

button.

FAILSAFE :

0 % LEL 0 % LEL 0 % LEL

YES

ENTER

Note 1:

the following letters, numbers and symbols are used: W (Warn), A (Alarm), F (Fail),

1,2,3,4

and

Note2:

or symbols out of 32 at one time on the LCD. Each time the

pressed, the program position moves 1 flashing position to the right. The flashing position will wrap around to the first position.

Note3: If a mistake is made during entry of the

selection, press the RESET/Silence button to delete a character. without using the c

If you wish to change the W to A or F, press the

example, use the Factory Default

To program any relay for specific alarms,

(Channel numbers), &

)

(used to separate groups of alarms).

The LCD can display 16 letters, numbers

SETUP

haracter in the string cannot be deleted.

button to select your requirement. For this

button is

Corrections can then be made

ESCAPE

(AND

), (OR),

button. Note: The first

(

Press the UP or DOWN

FAILSAFE

0 % LEL

Press the

ENTER

0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

button.

: NO

Press the

If you wish to change the 1 to another ch number, press the UP or DOWN wish to add additional alarms or functions, press the UP or

SETUP

right on the CD display.

The default 1 will be used for this e

SETUP button

0 % LEL 0 % LEL 0 % LEL

button to move to the next position to the

Down

button. If you

AND

and OR

buttons and the

xample.

annel

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Page 65

Press the

Press the UP button.

Press the

ENTER

RELAY:

ENTER

button.

0 % LEL 0 % LEL 0 % LEL

button.

FAILSAFE:

0 % LEL 0 % LEL 0 % LEL

REM RLY 1

REM RLY 2

Press the

Press the UP or DOWN

SETUP

Press the

button.

0 % LEL 0 % LEL 0 % LEL

SETUP

button to select &.

button.

As we are using the default setting, press the

The factory default A1will be used but additional program Press the

ENTER

ming will be added for this example.

SETUP

button.

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

NO,

&¦

0 % LEL

Press the UP or DOWN the

SETUP

A1&A¦

button.

0 % LEL 0 % LEL

0 % LEL 0 % LEL 0 % LEL

button to select A.

Pres

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Page 66

Press the UP or DOWN Press the

Press the

To return to the Factory Default settings A1, press the wraps around to the position after

A1.

SETUP

A1&A4

SETUP

&A4

button until the program position

button to select 4.

button.

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

You have finished programming relay activate when Channel 1 goes into alarm.

For another example we will show Remote Relay 3 programmed to operate if either Channel 1 or Channel 2 goes into warn.

Press the

Press the UP button.

Press the

ENTER

RELAY:

ENTER

button.

REM RLY 2 0 % LEL 0 % LEL 0 % LEL

REM RLY 3 0 % LEL 0 % LEL 0 % LEL

button.

1 to

A1&A4

Press the delete &, A and 4. After pressing the

SILENCE/RESET

will be displayed.

0 % LEL 0 % LEL 0 % LEL

SILENCE/RESET

button three times, this screen

% LEL 0 % LEL 0 % LEL

button three times to

FAILSAFE

Press the

The Factory Default is W2. Press

ENTER

: NO 0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

SETUP

twice.

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Page 67

Press the

DOWN

SETUP

button.

button 4 times.

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

Press the to the Save Setup Screen to save the setup.

Press the 2 seconds.

After the 2 seconds has display is shown.

ESCAPE

SAVE SETUP?

ENTER

SYSTEM SAVED

button times. To return

0 % LEL 0 % LEL 0 % LEL

button. This display is shown for

0 % LEL 0 % LEL 0 % LEL

timed out, the default

YES

Press the

Press the UP button 4 times.

SETUP

W¦

W2 W1

button

0 % LEL 0 % LEL 0 % LEL

0 % LEL 0 % LEL

You have now returned to run/active mode. Any WARN setpoint that is activated on either Channels 1 or 2 will cause Remote Relay 3 to activate.

0 % LEL 0

% LEL

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Page 68

System Maintenance

General

Due to the unique micropro maintenance schedule is not required. However, a visual alarm and relay check can be performed at customer selected intervals to verify proper system operation.

Alarm/Relay Check

cessor circuitry design and proven reliability of the QuadScan II, a set

CAUTION: CORRECTIVE CONTACTS MUST BE DISABLED BEFOR PERFORMING THE FOLLOWING TESTS UNLESS IT IS INTENDED TO ALSO VERIFY THE OPERATION OF THE REMOTE ANNUCIATORS.

DEVICES CONNECTED TO THE ALARM RELAY

1. Remove the cover plate located on the lower bottom sect

2. Identify the Channel 1 current loop input wires located on TB1 and disconnect. The fail LED will illuminate and the fail common relay will activate (change state). The internal horn will not activate.

3. Connect a current generato and (–) IN if the output is set to 4ma or above.

r with a range of 0 to 20 mA, (observe correct polarity), to the (+) IN

terminals on TB1. The fail LED will extinguish and the fail relay will return to normal

ion of the enclosure.

For toxic or combustible monitoring channels, deficiency monitoring channels, follow steps 9 through 13.

4. Set the current generator for 4 mA and input to the system. The LCD will indicate 0.0.

5. Set the current generator for 20mA to simulate a high toxic or input to the system. The LCD will indicate the programmed full scale for a specific gas. The warn and alarm LEDs will be illuminated and flashing, warn and alarm common relays will activate (change state). The internal horn also be activated. The fail LED and relay will not be activated.

Reset the current generator to 4mA and input. The LCD display will return to 0.0. If the LEDs and relays are still activated press the re activate.

7. Set the current generator to the programmed fault level to simulate an fault condition. The Status LED will illuminate and flash yellow, the LCD will indicate a negative value

will be activated and the common horn relay will

set button and the LEDs and relays will now de

follow steps 4 through 8. For oxygen

combustible gas condition and

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Page 69

corresponding to th user to do so. Pressing the silence/reset button will cause the LED to stop flashing and remain steady.

8. Reset the current generator to 4mA and input. The LCD display will return and relays are still activated press the reset button the LEDs and relays will now deactivate.

Note: The following test assumes an oxygen range of 0% to 25%.

9. Set the current generator for 17.4 mA and input to the system. The LCD will indicate approximately 20.9 %, which is a normal oxygen atmosphere and the QuadScan II will indicate normal operation. Alarm LEDs or alarm relays will not be activated.

10. Reset the current generator to 12.0 mA and input. The LCD will indicate 12.5%. and alarm LEDs will be illuminated and flashing, the warn and alarm common relays will activate (change state). The internal horn will be activated and the common horn relay will also be activated. The fail LED and fail relay will not be activat

11. Set the current generator to the programmed current of 18.7 mA to simulate an inhibit condition. The LCD will display approximately 23 %. The Channel Status LED will illuminate and flash yellow. The internal horn will not activate. Reset the cu and input. The LCD will indicate 20.9 % if the LEDs and relays are still activated. Press the reset button and the LEDs and relays will now deactivate.

e mA input. The internal horn will not activate unless programmed by the

to 0.0. If the LEDs

The warn

ed.

rrent generator to 17.4 mA

12. Disconnect the current generator. Reconnect the loop wires and move to

Note: If any of the conditions described do not function, refer to the Troubleshooting Section.

channel 2 through 4.

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Page 70

Troubleshooting

General

Troubleshooting the QuadScan II can be accomplished by isolating the CPU/power supply boards or the displa Reference the appropriate transmitter manual for specific transmitter troubleshooting procedures. If the problem exists in the receiver/controller and n common to all channels or just a specific channel. The following procedure can be used to help isolate the problem area.

Channel Test Setup

y/function assembly. In most cases, the problem will be isolated to a sensor or transmitter failure.

ot the sensor or transmitter, then determine if the problem is

CAUTION: CORRECTIVE DEVICES CONNECTED TO THE ALARM RELAY CONTACTS M

UST BE DISABLED BEFOR PERFORMING THE FOLLOWING TESTS.

1. Remove the cover plate located on the lower bottom section of the enclosure.

2. Identify the Channel 1 current loop input wires located on TB1 and disconnect. The Fail LED will i

lluminate and the fail common relay will activate (change state). The internal horn will not

activate.

3. Connect a current generator with a range of 0 to 20 mA, (observe correct polarity), to the (+) IN and (–) IN

For additional details on the testing procedure, refer to System Maintenance. Refer to Table 2 for additional help in isolating or locating the malfunction.

Once the problem area has been diagnosed, because of the complexity of the circuit board design, all repairs should be limited to interchanging circuit boards. Circuit boards are available as spare parts or can be purchased as required from Scott Health & Safety.

terminals on TBI. The fail LED will exti

nguish and the fail relay will return to normal.

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Page 71

The following table will hel

Problem

Fail LED flashing

Continuous high alarm

condition

Function switches not

operating correctly

LCD not indicating

correc

t data

No visible displays

on front panel

p identify and locate possible malfunctions in the event of a system failure.

Possible Cause

Transmitter failure

Loop open or shorted

Transmitter failure

igh gas condition

Alarms in latched mode

Function switches

Ribbon cable

CPU PS board failure

Ribbon cable

Display board

No power input

Ribbon cable

CPU/PS board

Possible Remedy

Check transmitter manual

Normal

Press Reset button

Replace Display/Function

Assembly

Replace/tighten Ribbon cable

Replace CPU/PS boards

Replace/tighten cable

Replace Display board

Check input voltage

Replace/tighten cable

Replace CPU/PS

Blown fuse on power supply

boards

All programming functions

inoperable

Common relays inoperable

Common Warn, or Alarm,

or Fail or Horn relays

inoperable

Internal Horn not functional

No current output

Ribbon cable CPU/PS boards CPU/PS boards

Relay

CPU/PS boards

Horn

Horn connector

CPU/PS boards

Display board

No current

input

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Replace/tighten Ribbon cable

Replace CPU/PS boards Replace CPU/PS boards

Replace Relay

Replace CPU/PS boards

Replace Horn

Reconnect or Replace

Replace CPU/PS boards

Replace Display board

Check transmitter manual

Page 72

Alarm LEDs operational

but Status LEDs inoperable

Status LEDs operational

but Alarm LEDs inoperable

Individual Alarm or Status

LED inoperable

Inhibit function d

All Remote Relays not

Relay 1,2,3,4,5,6,7 or 8

do not operate

Table 2 - Identify and Locate Possible Malfunctions During System Failure

oes not operate

operational

CPU/PS boards

Display board

Ribbon cable CPU/PS boards

Display board

Ribbon cable CPU/PS boards

LED

Display board

CPU/PS board

Cable or wire connection

Remote Relay board

Relay

Cable or wire connection

Replace CPU/PS boards

Replace Display board

Replace/tighten Ribbon cable

Replace CPU/PS boards

Replace Display board

Replace/tighten Ribbon cable

Replace CPU/PS boards

Replace LED

Replace Display board

Replace CPU/PS board

Replace or re-strip cable

Replace Relay board

Replace R

Replace or re-strip cable

elay

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Page 73

Spare Parts

QuadScan II

Description

Power Supply Main I/O Board CPU & Display Board Touch Pad/Function Ass Display Circuit Board Assembly Only (attaches to CPU board) Enclosure Rear Section Only Enclosure Center Section Only Enclosure Hinge Covers Only (pair) Enclosure Display Front Cover with Cle Interconnecting Ribbon Cable (Power Supply to Display Board) Horn Assembly (Internal)

embly – (Less Door)

ar Window

Part Number

096-2383 096-2384 071-0159 096-2689 096-2728 063-0074 063-0076 063-0075 096-2692

086-0004 Power Supply Module located on Power Supply board Terminal Strip Connector for TB1,TB2,TB5 and TB6 Terminal Strip Terminal Strip Connector for TB4 Terminal Strip Connector for TB7

Remote Relay Assembly

Description

Complete Relay Assembly less cable NEMA 4X Enclosure with drilled holes

Connector for TB3

028-0035 037-0104 037-0103 037-0102 037-0105

Part Number

096-2691 096-2729

-2

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Page 74

Circuit Board Assembly - Complete Ten ft. Interconnecting 6 Conductor Cable –specify length required

Up to 50 ft. maximum

096-2688 069-0065

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Page 75

Scott Health & Safety Warranty

General Policy Coverage

The manufacturer warrants to the original p any part(s) thereof (except for those listed below) prove(s) to be defective in material or workmanship within 18 months from the date of shipment or 12 months from the date of start-up, whichever comes first. Such defective part(s) will be repaired or replaced free of charge if shipped prepaid to the factory in a package equal to (or) original container.

Exceptions to this general warranty policy are:

Gas Sensors

Gas sensors wh occur within 12 months of shipment, the sensor will be replaced at no charge, providing the sensor has been used and installed in accordance with O&M Manual recommendati COCI2 has a warranty of six months.

Terms and Conditions

All products will be returned freight prepaid and allowed if it is determined by the manufacturer that the part(s) failed due to defective materials or workmanship. The sell damages of any kind, and the buyer by acceptance of this equipment will assume all liability for the consequences of its use or misuse by the buyer, his employees, or others. A defect within the meaning of this wa renewed, repaired, or replaced, operate to condemn such piece of equipment. This warranty does not cover consumable items, batteries, or wear items subject to period fuses. This warranty is in lieu of all other warranties (including without limiting the generality of the foregoing warranties of merchantability and fitness for a particular purpose), guarantees, obligations, or liabilit warranty is void if the instrument has been subject to misuse or abuse, or has not been operated in accordance with instructions, or if the serial number has been removed.

ich are part of certain products are covered by a 12-month warranty. Should a failure

rranty in any part of any piece of equipment shall not, when such part is capable of being

ies expressed or implied by the seller or its representatives and by the statute or rule of law. This

urchaser and /or ultimate customer of the manufacturer’s products that if

ons. The Phosgene sensor

er assumes no liability for consequential

ic replacement including lamps and

SCOTT HEALTH & SAFETY MAKES NO OTHER WARRANTY EXPRESSED OR IMPLIED EXCEPT AS STATED ABOVE.

Year 2000 Compliance

The QuadScan II accepts all dates in the years after 1999 as valid dates. The instrument’s functionality, performance, an irrespective of the century.

d accuracy will not be affected as a result of the run date or dates being processed,

of 116

Page 76

Contacting Scott Health & Safety

Scott Health & Safety 4320 Goldmine Rd Monroe, North Carolina 28110 USA

Phone (704)291-8400 www.scotthealthsafety.com

FAX (704)291-8340

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Page 77

Technical Specifications

QuadScan II

Configurations: Enclosure: Weight: Power Requirements: 90-260 VAC, 50

Inputs:

Outputs:

Displ

Relays (common):

Accuracy: Repeatability: Temperature range: Humidity Range: Piezo Sound Level: Approvals: Warranty:

ays:

1 Year

1,2,3,or 4 Channels NEMA 4X Wall Mount Noryl plastic with stainless steel screws and hinges 4 lbs. (1.8 Kg)

or 24VDC, 400mA max. Maximum Four 4-20 mA current loops, 2, 3 or 4 wire. Dry contact inputs also available. Four isolated analog 0-20mA (max) self powered (do not apply 24VDC to outputs) common & optional remote relays LCD, backlit, with 4 individual 16 character alphanumeric displays. Individual channel LED indication for OK, fail, inhibit, low alarm and high alarm Low alarm, high alarm, fail and horn –

24VDC SPDT 5A resistive ± 2% full ± 0.5% full scale

13° F to 122°F (-25°C to 50°C) 0 to 99% R.H. 85dB @ 1 foot Classified to CSA 22.2 No. 1010.1 and ISA-S82

scale

/60 Hz, 80W.

Optional Remote Relay

Con

figuration:

Enclosure: Temperature Weight: Inputs:

Eight (8) programmable Relays 6 relays SPDT, 5 A, 30 VDC – 277 VAC 2 relays DPDT, 5 A, 30 VDC – 277 VAC NEMA 4X polycarbonate 94V-2 (wall mount)

40° F to 176°F (-40°C to 80°C) 1 lb. (.5 Kg) 10 ft. - 6 (Cable lengths are available up to 50 ft.)

conductor cable

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Page 78

Factory Default Settings

All 4 channels have the same factory default settings. Sometimes the factory will perform custom setups.

CHANNEL

FULL SCALE

UNITS %

DAMPING(S)

ZERO DB(%FS)

INHIBIT(mA)

FAULT(mA)

ALARM INHIBIT

COMMON FAIL RLY

FAILSAFE

COMMON WARN

FAILSAFE

COMMON ALARM

FAILSAFE

COMMON HORN

FAILSAFE

SETTINGS

TAG

RLY

FACTORY

DEFAULT

100

LEL

3.6

2.0

NONE

YES

ALARM LATCH

SETTINGS

REMOTE RELAYS 1 – 8

FAILSAFE REMOTE RELAY 1 REMOTE RELAY 2 REMOTE RELAY 3 REMOTE RELAY 4 REMOTE RELAY 5 REMOTE RELAY 6 REMOTE RELAY 7 REMOTE RELAY 8

Table 3 - Factory Default Settings for

Receiver/Controller

FACTORY

DEFAULT

WARN SET POINT

WARN RESET

RN DELAY

WARN HOLD

WARN LATCH

ALARM SET POINT

ALARM RESET ALARM DELAY

ALARM HOLD

25 20

50 45

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Page 79

Customer Work Sheet

LISTING PROGRAMMING SELECTIONS Channel 1

SETTINGS

SYSTEM INHIBIT

FULL SCALE

UNITS %

TAG

DAMPING(S)

ZERP DB(%FS)

FACTORY

DEFAULT

NONE

100

LEL

PROGRAMMING

OPTIONS

NONE/ALL

1.00-

10.0100-1999

%, PPM, PPB NONE

UP TO 6 LETTERS,

NUMBERS

OR SYMBOLS

( see footnote 1)

0 to 10

0 to 5

10.00

100.0

CUSTOMER SELECTION

INHIBIT(mA)

FAULT(mA)

CHANNEL INHIBIT

COMMON FAIL RLY

FAILSAFE

COMMON WARN RLY

FAILSAFE

COMMON ALARM RLY

FAILSAFE

COMMON HORN RLY

FAILSAFE

WARN SET POINT

WARN RESET

3.6

3.5

YES

25 20

2.0 to 20

0.1 to 20.0

ON/OFF/IHB

PROGRAMMABLE

NO/YES

.01 t .01 to 1999

NOT

o 1999

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Page 80

WARN DELAY

WARN HOLD

WARN LATCH

ALARM SET POINT

ALARM RESET ALARM DELAY

ALARM HOLD

ALARM LATCH

The following are working on for example, numbers and symbols, in any combina

numbers, letters and symbols will be used to identify a specific gas being monitored on the channel you

A –

Z, ! " # $ % & ' ( ) * +

, - . / 0 – 9 : ; < = > ?

PPB

. Identification can also be listed for sensor/transmitter locations. Six letters,

50 45

tion, can be used.

x x

0 to 10

0 to 7200

NO/YES .01 to 1999 .01 to 1999

0 to 10

0 to 7200

NO/YES

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Page 81

LISTING PROGRAMMING SELECTIONS Channel 2

SETTINGS

SYSTEM INHIBIT

FULL SCALE

UNITS %

TAG

DAMPING(S)

ZERP DB(%FS)

FACTORY DEFAULT

NONE

100

LEL

PROGRAMMING

OPTIONS

NONE/ALL

1.00-

10.00

10.0-

100.0

100-1999

%, PPM, PPB NONE

UP TO 6 LETTERS,

NUMBERS

OR SYMBOLS

( see footnote 1)

0 to 10

0 to 5

CUSTOMER SELECTION

INHIBIT(mA)

FAULT(mA)

CHANNEL INHI

COMMON FAIL RLY

FAILSAFE

COMMON WARN RLY

FAILSAFE

COMMON ALARM RLY

FAILSAFE

COMMON HORN RLY

FAILSAFE

WARN SET POINT

WARN RESET

WARN DELAY

WARN HOLD

BIT

3.6

3.5

YES

25 20

2.0 to 20

0.1 to 20.0

ON/OFF/IHB

PROGRAMMABLE

NO/YES

.01 to 1999 .01 to 1999

0 to 7200

NOT

to 10

WARN LATCH

ALARM SET POINT

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NO/YES .01 to 1999

Page 82

ALARM RESET ALARM DELAY

ALARM HOLD

ALARM LATCH

The following numbers, letters and symbols will be used to identify a specific gas being monitored on the channel you are working on, for example, numbers and symbols, in any combination can be used.

PPB

. Identification can also be listed for sensor/transmitter locations. Six letters,

A –

Z, ! " # $ % &

, - . / 0 – 9 : ; < = > ?

' ( ) * +

.01 to 1999

0 to 10

0 to 7200

NO/YES

x x

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Page 83

LISTING PROGRAMMING SELECTIONS Channel 3

SETTINGS

SYSTEM INHIBIT

FULL SCALE

UNITS %

TAG

DAMPING(S)

ZERP DB(%FS)

FACTORY

DEFAULT

NONE

100

LEL

PROGRAMMING

OPTIONS

NONE/ALL

1.00-

10.0100-1999

%, PPM, PPB NONE

UP TO 6 LETTERS,

NUMBERS

OR SYMBOLS

( see footnote 1)

0 to 10

0 to 5

10.00

100.0

CUSTOMER SELECTION

INHIBIT(mA)

FAULT(mA)

CHANNEL INHIBIT

COMMON FAIL RLY

FAILSAFE

COMMON WARN RLY

FAILSAFE

COMMON ALARM RLY

FAILSAFE

COMMON HORN RLY

FAILSAFE

WARN SET POINT

WARN RESET

WARN DELAY

WARN HOLD

3.6

3.5

YES

25 20

2.0 to 20

0.1 to 20.0

ON/OFF/IHB

PROGRAMMABLE

NO/YES

.01 to 1999 .01 to 1999

0 to 10

0 to 7200

NOT

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Page 84

WARN LATCH

ALARM SET POINT

ALARM RESET ALARM DELAY

ALARM HOLD

ALARM LATCH

The following numbers, letters and symbols will be used to identify a specific gas being monitored on the channel y are working on, for example, numbers and symbols, in any combination can be used.

PPB

. Identification can also be listed for sensor/transmitter locations. Six letters,

A –

Z, ! " # $ % & ' ( ) * +

, - . / 0 – 9 : ;

50 45

< = > ?

NO/YES .01 to 1999 .01 to 1999

0 to 10

0 to 7200

NO/YES

x x

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Page 85

LISTING PROGRAMMING SELECTIONS Channel 4

SETTINGS

SYSTEM INHIBIT

FULL SCALE

UNITS %

TAG

DAMPING(S)

ZERP DB(%FS)

FACTORY

DEFAULT

NONE

100

LEL

PROGRAMMING

OPTIONS

NONE/ALL

1.00-

10.0100-1999

%, PPM, PPB NONE

UP TO 6 LETTERS

NUMBERS

OR SYMBOLS

( see footnote 1)

0 to 10

0 to 5

10.00

100.0

CUSTOMER SELECTION

INHIBIT(mA)

FAULT(mA)

CHANNEL INHIBIT

COMMON FAIL RLY

FAILSAFE

COMMON WARN RLY

FAILSAFE

COMMON ALARM RLY

FAILSAFE

COMMON HORN RLY

FAILSAFE

WARN SET POINT

WARN RESET

WARN DELAY

WARN HOLD

3.6

3.5

YES

25 20

2.0 to 20

0.1 to 20.0

ON/OFF/IHB

PROGRAMMABLE

NO/

NO/YES

.01 to 1999 .01 to 1999

0 to 10

0 to 7200

NOT

YES

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Page 86

WARN LATCH

ALARM SET POINT

ALARM RESET ALARM DELAY

ALARM HOLD

ALARM LATCH

The following numbers, letters and symbols will be used to identify a specific gas being monitored on the channel you are working on, for example, numbers and symbols, in any combination can be used.

A –

Z, ! " # $ % & ' ( ) * +

, - . / 0 – 9 : ; < = > ?

PPB

. Identificati

50 45

on can also be listed for sensor/transmitter locations. Six letters,

x x

NO/YES .01 to 1999 .01 to 1999

0 to 10

0 to 7200

NO/YES

of 116

Page 87

LISTING PROGRAMMING SELECTION

SETTINGS

REMOTE RELAYS 1 – 8

FAILSAFE REMOTE RELAY 1 REMOTE RELAY 2 REMOTE RELAY 3 REMOTE RELAY 4 REMOTE RELAY 5 REMOTE RELAY 6 REMOTE RELAY 7 REMOTE RELAY 8

FACTORY

DEFAULT

PROGRAMMING

(See Footnote 2) (See Footnote 2) (See Footnote 2)

(See Footnote 2) (See Footnote 2) (See Footnote 2) (See Footnote 2)

REMOTE RELAYS

OPTIONS

NO/YES

ee Footnote 2)

CUSTOMER

SELECTIONS

The following Numbers, Letters and Symbols will be used to program a specific relay fro setting, for example, the required formula.

W, A, F, 1, 2, 3, 4, &, , (, )

Relay 1: ______________________________________________

Relay 2: ________________________________________

Relay 3: _______________________________________________

Relay 4: _______________________________________________

Relay 5: _______________________________________________

Relay 6: _______________________________________________

(W1&W2) (W2&A3)

. Thirty Two (32) letters, numbers and symbols are available to program

_______

m the factory default

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Page 88

Relay

7: _______________________________________________

Relay 8: _______________________________________________

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Page 89

Appendix A

The following will familiarize you with actual examples.

Programming Example 1

Two sensor/transmitters, one for chlorine and one hydrogen sulfide are installed, operating and calibrated. A four channel QuadScan II has been purchased to interface with these transmitters. The chlorine sensor/transmitter is wired to channel 1 and the hydrogen sulfide sensor/transmitter is wired to channel 3. Channels 2 and 4 will not be used at this time. Security/password will not be used. Remote relays will not be connected to the QuadScan II. The starting point for the programming sequence will be the LEL default display:

for

Press the SETUP

Press the

ENTER

0 % LEL 0 % LEL 0 % LEL 0 % LEL

button.

* SETUP*

0 % LEL 0 % LEL 0 % LEL

button.

SECURITY MENU

0 % LEL 0 % LEL 0 % LEL

The

SECURITY MENU

Press the

will not be programmed.

DOWN

ENTER

button.

SYSTEM MENU

button.

VERSION *

0 % LEL 0 % LEL 0 % LEL

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Page 90

Press the UP or DOWN LOCAL RELAYS.

been pre

Press the

viously setup or not used.

ENTER

All other functions have

SET LOCAL RELAYS

0 % LEL 0 % LEL 0 % LEL

button.

RELAY: CMN FAIL

0 % LEL 0 % 0 % LEL

button to scroll to

LEL

SET

Press the UP button.

Press the

RELAY:

ENTER

button.

FAILSAFE

CMN WARN 0 % LEL 0 % LEL 0 % LEL

CMN ALARM 0 % LEL 0 % LEL 0 % LEL

0 % LEL 0 % LEL 0 % LEL

: NO

Press the

The mode. Press the

ENTER

Fail Relay

cannot be set in any other

RELAY: CMN FAIL

button.

FAILSAFE:

ENTER

0 % LEL 0 % LEL 0 % LEL

button

0 % LEL 0 % LEL 0 % LEL

YES

Press the UP or DOWN YES.

FAILSAFE:

Press the

ENTER

RELAY:

button and select

0 % LEL 0 % LEL 0 % LEL

button.

CMN ALARM 0 % LEL 0 % LEL 0 % LEL

YES

Press the UP button.

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Page 91

Press the UP button.

Press the

*Current Software Version displayed.

Press the

RELAY:

ESCAPE

SET LOCAL RELAYS

ESCAPE

CMN HORN 0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

Press the UP button.

ON/OFF/IHB: O

0 % LEL 0 % LEL 0 % LEL

SENSOR: 4 – 20 mA

0 % LEL 0 % LEL 0 % LEL

FULL SCALE: 100

0 % LEL 0 % LEL 0 % LEL

Press the

SYSTEM MENU

0 % LEL 0 % LEL 0 % LEL

DOWN

ENTER

button.

CHANNEL MENU

0 % LEL 0 % LEL 0 % LEL

button.

Press the

10.0

. Press the

ENTER

DOWN

button.

FULL SCALE: 100

button and hold to scroll to

ENTER

FULL SCALE: 10.0

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

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Page 92

Press the UP button.

ress the

UNITS: %

ENTER

button.

0 % LEL 0 % LEL 0 % LEL

UNITS: %

0 % LEL 0 % LEL 0 % LEL

Press the

ENTER

LEL

DOWN

button.

button to scroll to the

0 % LEL 0 % LEL 0 % LEL

CEL 0 % LEL 0 % LEL 0 % LEL

Press the Press the

Press the UP button.

DOWN ENTER

button and scroll to

button.

TAG: LEL

UNITS: PPM

0 % LEL 0 % LEL 0 % LEL

PPM

Press the

ess the

SETUP

button.

CEL

button and scroll to L.

CLL

0 % LEL 0 % LEL 0 % LEL

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Page 93

Press the

SETUP

DOWN

button.

button and scroll to

0 % LEL 0 % LEL

0 % LEL 0 % LEL 0 % LEL

Note: The the display is fou

button

Press the UP button.

DAMPING

nd to be unstable. Press the

ZERO DB(%FS): 0

INHIBIT(MA): 3.6

may require increasing if

0 % LEL 0 % LEL 0 % LEL

Press the

ENTER

button.

TAG: CL2

button.

DAMPING(S): 2

0 % LEL 0 % LEL 0 % LEL

Press the UP button.

SETUP WARNING

FAULT(MA): 2.0

0 % LEL 0 % LEL 0 % LEL

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Page 94

Press the

ENTER

button.

WARN SET: 2.5

button.

WARN SET: 2.5

0 % LEL 0 % LEL 0 % LEL

Press the

0.4

. Press the

ENTER

DOWN

ENTER

button.

WARN RES

button and hold to scroll to

WARN RES: 0.4

0 % LEL 0 % LEL 0 %

LEL

button

0 % LEL 0 % LEL 0 % LEL

: 2.0

Press the Press the ENTER

Press the UP button.

DOWN

button to scroll to

button.

WARN SET: 0.5

WARN RES: 2.0

0 % LEL 0 % LEL 0 % LEL

0.5

Press the

Press the UP button.

ENTER

button.

WARN RES: 0.4

WARN DLY: 0

0 % LEL 0 % LEL 0 % LEL

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Page 95

Press the UP button.

WARN HLD: 0

WARN LAT: NO

0 % LEL 0 % LEL 0 % LEL

Press the

ENTER

SETUP ALARM

0 % LEL 0 % LEL 0 % LEL

button.

ALARM SET: 5.0

0 % LEL 0 % LEL 0 % LEL

Press the UP button.

Press the

ESCAPE

WARN SET: .5

SETUP WARNING

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

Press the

Press the the

ENTER

ALARM SET: 5.0

DOWN

ENTER button.

ALARM SET: 1.0

button.

button to scroll to

0 % LEL 0 % LEL 0 % LEL

1.0. Press

Press the UP button.

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Page 96

Press the UP button.

Press the

ALARM RES: 4.5

0 % LEL 0 % LEL 0 %

ENTER

button.

ALARM RES: 4.5

0 % LEL 0 % LEL 0 % LEL

LEL

Press the UP button.

ALARM HLD: 0

0 % LEL 0 % LEL 0 % LEL

ALARM LAT: NO

0 % LEL 0 % LEL 0 % LEL

Press the Press the

Press the UP button.

DOWN ENTER

button to scroll to

button.

ALARM RES: 0.8

ALARM DLY: 0

0 % LEL 0 % LEL 0 % LEL

Press

the

ENTER

0.8

Press the UP or

YES.

Press the

button.

ALARM LAT

DOWN ENTER

ALARM LAT:

0 % LEL 0 % LEL 0

% LEL

button to scroll to button.

0 % LEL 0 % LEL 0 % LEL

: NO

YES

Press the UP button.

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Press the

ENTER

button.

ALARM LAT: YES

0 % LEL 0 % LEL 0 % LEL

Page 97

Press the UP button.

Press the

ALARM SET: 1.0

ESCAPE

SETUP ALARM

0 % LEL 0 % LEL 0 % LEL

button

0 % LEL 0 % LEL 0 % LEL

Press the

Press the UP button.

ESCAPE

button.

CAL LOOP INPUT

CAL LOOP OUTPUT

0 % LEL 0 % LEL 0 % LEL

Press the UP button.

Press the

Input 4 mA at TB1 2,3

ENTER

CAL LOOP INPUT

butto

Input 4mA at TB1 2,3

0 % LEL 0 % LEL 0 % LEL

n. The display scrolls

0 % LEL 0 % LEL 0 % LEL

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Press the

mA out = TB5 1,2

Press the

ENTER

mA out = TB5 1,2

ESCAPE

CAL LOOP OUTPUT

button. The display scrolls

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

Page 98

Press the UP button.

Press

the

ON/OFF/IHB: ON

ESCAPE

CHANNEL MENU

0 % LEL 0 % LEL 0 % LEL

button.

0 % LEL 0 % LEL 0 % LEL

Press the

SETUP

0.0 PPM CL2 0 % LEL 0 % LEL 0 % LEL

button.

* SETUP *

0 % LEL 0 % LEL 0 % LEL

Press the

ESCAPE

ENTER

button.

SAVE SETUP?

button.

SETUP SAVED

0 % LEL 0 % LEL 0 % LEL

YES

Press the

DOWN

ENTER

button.

ECURITY MENU

0.0 PPM CL2

* SETUP *

0 % LEL 0 % LEL

0.0 PPM CL2

0 % LEL 0 % LEL

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Page 99

Press the UP button.

Press the

ENTER

0.0 PPM CL2

CHANNEL MENU

button.

0.0 PPM CL2

ON/OFF/IHB: ON

0 % LEL 0 % LEL

Press the

ESCAPE

0.0 PPM CL2

ON/OFF/IHB: OFF

0 % LEL 0 % LEL

button.

0.0 PPM CL2

CHANNEL MENU

0 % LEL 0 % LEL

button.

Press the

ENTER

DOWN

button.

ON/OFF/IHB:

button.

ON/OFF/IHB:

0.0PPM CL2 ON

0 % LEL 0 % LEL

0.0PPM CL2

0 % LEL 0 % LEL

OFF

Press the

ENTER

0.0 PPM CL2

SAVE SETUP?

0 % LEL 0 % LEL

button.

0.0 PPM CL2

SYSTEM SAVED

0 % LEL 0 % LEL

YES

Press the

ENTER

button.

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Page 100

Press the

SETUP

0.0 PPM CL2

CHANNEL OFF

0 % LEL 0 % LEL

button.

* SETUP *

CHANNEL OFF

0 % LEL 0 % LEL

The

SECURITY MENU

programmed. Press the UP button

0.0 PPM CL2

CHANNEL OFF

SECURITY MENU

0 % LEL

will not be

0.0 PPM CL2

CHANNEL OFF

CHANNEL MENU

0 % LEL

Press the

DOWN

button.

CHANNEL OFF

0.0 PPM CL2 * SETUP *

0 % LEL 0 % LEL

0.0 PPM CL2

* SETUP *

0 % LEL

Press the

FULL SCALE: 100

Press the

ENTER

button and scroll UP to

0.0 PPM CL2

CHANNEL OFF

FULL SCALE: 100

0 % LEL

button.

0.0 PPM CL2

CHANNEL OFF

FULL SCALE: 100

0 % LEL

Press the

ENTER

button.

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