Brasch GSE Generation 2 Manuale utente

GSE Generation 2

Installation / Operation Manual

Brasch Environmental Technologies, LLC

1 0 Long Road, Suite 101

Chesterfield, Missouri 63005

31 -291-0 0

www.braschenvtech.com

Table of Contents
Introduction................................................................................................................................... 
General Description.................................................................................................................. 
Features and Benefits..............................................................................................................5
Technical Specifications................................................................................................................6
Product Specifications..............................................................................................................6
Target Gas Specifications.........................................................................................................7
Carbon Monoxide.................................................................................................................7
Nitrogen Dioxide...................................................................................................................7
Description of Front Panel Indicators.......................................................................................8
Front Panel Indicators..........................................................................................................8
Operation Safety Notice................................................................................................................9
Types of Notices.......................................................................................................................9
Quick Start Guide.......................................................................................................................10
Step 1 – Mounting..................................................................................................................10
Step 2 – Input Wiring..............................................................................................................10
Step 3 – Remote Transmitter Wiring......................................................................................11
Step   – Relay Wiring.............................................................................................................12
Step 5 – External Alarms........................................................................................................12
Step 6 – Applying Power........................................................................................................12
Step 7 – Self-Test Mode.........................................................................................................13
Installation...................................................................................................................................1 
Mounting the Detector............................................................................................................1 
Connecting the Power Supply................................................................................................15
Connecting the Remote Transmitters.....................................................................................17
Connecting the Ventilation System.........................................................................................17
Connecting the External Alarm...............................................................................................18
Connecting the Voltage or Current Proportional Output........................................................18
Applying Power For the First Time.........................................................................................18
Using the Self-Test Feature....................................................................................................19
Typical Installation Diagrams..................................................................................................20
Operation....................................................................................................................................23
How the Detector Senses the Target Gas..............................................................................23
How the Detector Controls the Ventilation Equipment...........................................................23
Low Alert.............................................................................................................................23
High Alert............................................................................................................................23
Alarm..................................................................................................................................2 
Proportional Output............................................................................................................2 
Manual Fan Activation........................................................................................................2 
Factory Default Settings.........................................................................................................25
Adjusting the Settings.............................................................................................................26
Sensor Number..................................................................................................................26
Active Sensors...................................................................................................................26
IOM01
Rev 1.0 – December 22, 2020 2

Active Zones.......................................................................................................................26
Zone Delay.........................................................................................................................26
Zone Alert...........................................................................................................................26
High Alert Relay Operation.................................................................................................27
Fan Speed..........................................................................................................................27
Proportional Output............................................................................................................27
Using the Proportional Outputs..............................................................................................27
Obtaining the Best Operation.................................................................................................28
Carbon Monoxide and/or Nitrogen Dioxide Detectors.......................................................28
Maintenance...............................................................................................................................30
Testing the Response to the Target Gas................................................................................30
Carbon Monoxide and/or Nitrogen Dioxide Detectors.......................................................30
Replacing the Sensor.............................................................................................................31
Suggested Repair Parts.........................................................................................................32
Troubleshooting..........................................................................................................................33
Error Codes............................................................................................................................33
Transmit Timeout – 9501....................................................................................................33
Failed Sensor – 960x.........................................................................................................33
Cannot Run Self-Test – 9802.............................................................................................3 
End-of-Life – 9995..............................................................................................................3 
Sensor Not Installed – 9996...............................................................................................3 
Invalid Calibration Values – 9997.......................................................................................3 
No Active Zones – 9998.....................................................................................................35
No Active Sensors – 9999..................................................................................................35
Checking and Replacing Fuses..............................................................................................35
Common Installation/Operation Mistakes..............................................................................36
Ventilation Components Connected to the Wrong Relays.................................................36
Ventilation Components Connected to the Wrong Zone....................................................36
Configuration Jumper in the Wrong Position.....................................................................36
Low Alert Level Set at Wrong Concentration.....................................................................36
Delay Period Set Incorrectly...............................................................................................37
Setting the Proportional Output Incorrectly........................................................................37
Detector Mounted in an Unsatisfactory Location...............................................................37
Limited Warranty.........................................................................................................................38
Warranty Statement...........................................................................................................38
Service and Repair Procedures.........................................................................................38
Appendix.....................................................................................................................................39
Model Numbers and Descriptions..........................................................................................39
Detector Model Number and Description...........................................................................39
Complete Model Number List............................................................................................. 0
Figures and Diagrams............................................................................................................ 1
IOM01
Rev 1.0 – December 22, 2020 3

Introduction

General Description

The Brasch Environmental Technologies GSE Generation 2 Gas Detector is designed to

function as a dual-zone standalone gas sensor and ventilation controller. The detector

consists of a sensor (or sensors), six control relays, and digital control circuitry. The unit

monitors the signal from the sensor, compares the signal to preset values, and controls relay

contacts based upon the comparison. These relay contacts then provide signals that control

ventilation components such as exhaust fans, louvers, and dampers. A four-digit display and

indicator LEDs are mounted on the front panel to provide a visual indication of the detector’s

operational condition. A linear proportional output is also included for communication with a

building management system (BMS), direct digital controls system (DDCS), or variable-

frequency drive (VFD).

The sensors used in the detector operate on the electrochemical principle and are able to

detect Carbon Monoxide or Nitrogen Dioxide. A current is produced when the target gas

reacts chemically with an electrode inside the sensor. This small current is converted to an

analog voltage, amplified, and converted to a digital signal. This signal is proportional to the

gas concentration present at the sensor and is shown on the display. After comparing the

digital signal to preset values, the unit activates the appropriate LEDs and relays. The actual

gas concentration is sampled and updated approximately every five seconds.

The detector’s circuitry consists of three or more printed circuit boards mounted inside a

polycarbonate housing. The housing has a NEMA 3R rating and is supplied with conduit

fittings so that the detector can mount directly to a standard four inch conduit box. Short

lengths of 16 AWG wire, connected to the power and relay terminals inside the housing, extend

through the conduit fittings. These wires are color-coded so that most installations will not

require opening the front panel of the detector.

Space is available in the detector housing for mounting two sensor assemblies. This allows for

local detection of two target gases. Additionally, remote sensors can be attached via a five-

conductor shielded cable. Each detector supports up to a total of four sensors mounted either

locally, remotely, or both.

IOM01

Rev 1.0 – December 22, 2020

Features and Benefits

•Comprehensive Monitoring

◦Detects CO and/or NO2

•Greater Coverage

◦Monitors up to Sensors and 36,000 sq. ft.

•More Control

◦User-Adjustable Setpoints, Delays, Outputs, and Relays

◦Built-in Manual Fan Activation

•Enhanced Durability

◦Rainproof Water Resistance

◦Simple Service and Maintenance

•Simplified Installation

◦Preconfigured Wiring

◦Factory Calibration

◦Customized Programming

•Effortless Upgrade

◦Works with New and Existing Building Controls Systems

◦Fully Backwards Compatible with GSE Generation 1

IOM01

Rev 1.0 – December 22, 2020 5

Technical Specifications

Product Specifications

Input Power

(selected at time of order)

120 VAC, 50/60 Hz, 0.2 A

2 VAC, 50/60 Hz, 1.0 A

Installation Category II (local level, over-voltage transients less than 500V)

Storage Temperature -50°C to 120°C (-58°F to 2 8°F)

Operating Temperature -20°C to 50°C (- °F to 122°F)

Humidity 10% to 90% (non-condensing)

Ventilation Control Relays 125 VAC, 50/60 Hz, 5 A resistive, 250 VA inductive

Internal Alarm 106 dB @ 10 cm, 3.8 kHz piezoelectric element

Front Panel Indicators Power (green LED)

Alert 1 (red LED)

Alert 2 (red LED)

Alarm (red LED)

Sensor 1 (yellow LED)

Sensor 2 (yellow LED)

Sensor 3 (yellow LED)

Sensor (yellow LED)

Zone 1 (yellow LED)

Zone 2 (yellow LED)

Display -digit numeric

Selectable Fan Settings 2-speed motor fans

2 individual fans

Alert Levels 8 field selectable choices

Delay Times 0 to 7 minutes, both entrance and exit

Dimensions 8.15” W x 9.93” H x 2.70” D (21 cm W x 25 cm H x 7 cm D)

Weight 5.5 lbs (2. 9 kg)

Housing Gray, NEMA 3R, polycarbonate plastic

Compliance ANSI/ISA 92.00.01-2010 (R2015)

EN 50270

FCC Part 15 Subpart B

RoHS

IOM01

Rev 1.0 – December 22, 2020 6

Target Gas Specifications

This Brasch Gas Detector is available for monitoring carbon monoxide and/or nitrogen dioxide

as target gases. Regulatory agencies have determined the threshold concentrations at which

the gases become dangerous. Brasch Environmental Technologies, LLC has designed their

detectors so that the measurement ranges for each target gas meet the agencies’

requirements. Each target gas, for which Brasch currently produces a detector, is listed below

along with the relevant concentration specifications.

Carbon Monoxide

Full Scale Span: 200 PPM

Resolution: 1 PPM

Minimum Accuracy*: ± 10% or 6 PPM

Low Alert Settings: Switch Position 0 1 2 3 5 6 7

PPM CO 20 25 30 35 0 5 50 55

High Alert Settings 100 PPM

Expected Lifespan 10 years

Recommended

Recalibration Time 2 years

Nitrogen Dioxide

Full Scale Span: 10 PPM

Resolution: 0.1 PPM

Minimum Accuracy*: ± 15% or 0.8 PPM

Low Alert Settings: Switch Position 0 1 2 3 5 6 7

PPM NO20.3 0.5 1.0 1.5 2.0 2.5 3.0 .0

High Alert Settings 5.0 PPM

Expected Lifespan 10 years

Recommended

Recalibration Time 2 years

*Allowable tolerance for accuracy and repeatability criteria as defined in Annex A, Item 2 of ANSI/ISA 92.00.01-2010 (R2015)

IOM01

Rev 1.0 – December 22, 2020 7

Description of Front Panel Indicators

The front panel indicators convey to the user the operational status of the detector. The

following table describes the function of each indicator. Please refer to the detector’s front

panel label for the indicator’s location.

Front Panel Indicators

Indicator Color Description

Power Green Glows whenever power is on

Alert 1 Red Blinks or flashes to indicate the condition of Zone 1

Alert 2 Red Blinks or flashes to indicate the condition of Zone 2

Alarm Red Glows after remaining in High Alert for 15 minutes

Zone 1 Yellow Glows whenever the active sensor is assigned to Zone 1

Zone 2 Yellow Glows whenever the active sensor is assigned to Zone 2

Sensor 1 Yellow Glows whenever Sensor 1 is active

Sensor 2 Yellow Glows whenever Sensor 2 is active

Sensor 3 Yellow Glows whenever Sensor 3 is active

Sensor Yellow Glows whenever Sensor is active

-digit Display Red Indicates the gas concentration or error code associated

with the active sensor

IOM01

Rev 1.0 – December 22, 2020 8

Operation Safet Notice

Certain procedures and operations detailed in this manual require that specific precautions be

taken prior to beginning the procedure or operation. When precautions are required, a notice

will be printed in an appropriate location in the manual. The user is urged to read and

understand all such notices.

T pes of Notices

Three types of notices may be used in this manual to describe the severity of the situation

encountered.

WARNING: This notice indicates that conditions exist that could cause personal injury

or loss of life.

CAUTION:Conditions exist that could cause damage to the equipment or other

property.

Note: Special consideration should be given to the procedure or operation,

otherwise an unexpected operational result could occur.

IOM01

Rev 1.0 – December 22, 2020 9

Quick Start Guide

Please read this entire manual before attempting to install and operate this gas detector. This

guide is only intended to provide the basic steps necessary for installation and operation.

Each step will reference the portion of the manual where more complete information can be

obtained.

Step 1 – Mounting

Determine the location for mounting your detector(s). The location(s) may be indicated on the

architectural drawing. Also, the owner or designer of the facility may be consulted. Mounting

guidelines can be found on page 1 of this manual.

Step 2 – Input Wiring

Provide a dedicated circuit with the required operating voltage at each detector mounting

location. Follow all national and local wiring codes. The wiring should be at least 1 AWG. A

conductor connected to earth ground should also be provided. The circuit must include a

disconnect switch located within easy reach of the detector.

If the detector operates from a voltage other than 120 VAC, ensure that the step-down

transformer provides the correct secondary voltage and has the necessary volt-amp rating.

The power requirement for the detector is listed on the front-panel label.

IOM01

Rev 1.0 – December 22, 2020 10

WARNING

This detector may require the use of voltage levels high enough to cause fatal injuries.

Proper procedures must be followed any time work is performed on this unit.

Only qualified personnel should attempt to install, maintain, or service this equipment.

CAUTION

Operating this detector with the incorrect voltage and power requirements can cause internal

electrical components to overheat and fail. Operation with the wrong power requirement will

void the manufacturer’s warranty and the installer will be responsible for any damage that

occurs.

Contact Brasch Environmental Technologies, LLC before connecting power to the detector if

you are unsure of the correct power requirement.

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