Bacharach GDC-150 Owner's Manual

Instruction 5209-9000

Operation Manual

Rev. 0 - May 2011

Product Leadership • Training • Service • Reliability

GDC-150 Operation Manual

IMPORTANT NOTE

READ AND UNDERSTAND THIS MANUAL PRIOR TO USING THIS INSTRUMENT.
THIS INSTRUMENT SHOULD BE INSPECTED AND PROGRAMMED BY

QUALIFIED AND TRAINED PERSONNEL.
THIS INSTRUMENT HAS NOT BEEN DESIGNED TO BE INTRINSICALLY S AFE IN

HAZARDOUS OR EXPLOSION-RATED ENVIRONMENTS. FOR YOUR SAFETY,

DO NOT

USE OR I NSTALL IT IN AREAS CLASSIFIED AS HAZARDO US AREAS

(E.G., EXPLOSION-RATED ENVI RO NM ENTS).

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DISCLAIMER

UNDER NO CIRCUMSTANCES WILL BACHARACH, INC. BE LIABLE FOR ANY
CLAIMS, LOSSES OR DAMAGES RESU LTING FROM OR ARISING OUT OF THE
REPAIR OR MODIFICATION OF THIS EQUIPMENT BY A PARTY OTHER THAN
BACHARACH, INC. OR ITS AUTHORI ZED SERVIC E REPRE SENTATIVES, OR BY
OPERATION OR USE OF THE EQUIPMENT OTHER THAN IN ACCORDANCE
WITH THE PRINTED INSTRUCTIONS CONTAINED W ITHIN THIS MANUAL OR IF
THE EQUIPMENT HAS BEEN IMPROPERLY MAINTAINED OR SUBJECTED TO
NEGLECT OR ABUSE. ANY OF THE FORGOING WILL VOID THE WARRANTY.

GDC-150 Operation Manual

WARRANTY POLICY

BACHARACH, INC. WARRANTS THIS INSTRUMENT TO BE FREE FROM
DEFECTS IN MATERIALS AND WORKMANSHIP FOR A PERIOD OF TWO (2)
YEARS FROM THE DATE OF PURCHASE. THIS INCLUD ES ALL ELECTRONICS,
SOLID-STATE SENSORS, CATALYTIC SENSORS, AND ELECTROCHEMICAL
CARBON MONOXIDE (CO) SENSORS. OTHER ELECTROCHEMICAL S ENSORS
ARE WARRANTED FOR ONE YEAR.

THE WARRANTY STATU S WILL BE AFFECTED (VOIDED) I F THE INSTRUMENT
HAS NOT BEEN INSTALLED AND MAINTAINED ACCORDING TO THE
INSTRUCTIONS INDICATED IN THIS MANUAL OR HAS BEEN ABUSED,
DAMAGED (ROUGH HANDLING, MECHANICAL DAMAGE, ELECTRICAL SHOCK
DAMAGE, ETC.) OR MODIFIED IN ANY WAY. THIS INSTRUMENT IS ONLY TO BE
USED FOR THE PURPOSES STATED HEREIN. THIS WARRANTY INDICATES
THE FULL EXTENT OF OUR LI ABILITY AND WE ARE NOT RESPONSI BLE FOR
REMOVAL OR REPLACEMENT COSTS, LOCAL REPAIR COSTS,
TRANSPORTATION COSTS OR CONTINGENT EXPENSE S INCURRED W ITHOUT
PRIOR APPROVAL.

BACHARACH, INC. WILL N O T BE HELD LIABLE FOR INDIRECT, INCIDENTAL OR
CONSEQUENTIAL LOSS OR DAMAGE OF ANY KIND TO EQUIPMENT
CONNECTED, IN ANY WAY, TO THE EQUIPMENT MANUFACTURED BY US.

THIS WARRANTY COVERS EQUIPMENT AND PARTS SOLD TO USERS ONLY BY
AUTHORIZED DISTRIBUTORS, D EALERS, AGENTS OR REPRESENTATIVES, AS
AUTHORIZED AND APPOINTED BY BACHARACH.

DUE TO ONGOING RESEARCH, DEVELOPMENT AND PRODUCT TESTING, THE
MANUFACTURER RESERVES THE RIGHT TO CHANGE SPECIFICATIONS
WITHOUT NOTICE. THE INFORMATION CONTAINED HEREIN IS BASED ON
DATA CONSIDERED ACCURATE. HOW EVER, NO WARRANTY IS EXPRESSED
OR IMPLIED REGARDING THE ACCURACY OF THIS DATA.

ALL GOODS MUST BE SHIPPED TO THE MANUFACTURER BY PREPAID
FREIGHT. ALL RETURNED GOODS MUST BE ACCOMPANIED BY AN RMA
NUMBER.

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GDC-150 Operation Manual

BACHARACH, INC. MAINTAINS AN INSTRUMENT SERVICE FACILITY AT THE
FACTORY. SOME BACHARACH DISTRIBUTORS / AGENTS MAY ALSO HAVE
REPAIR FACILITIES, HOWEVER, BACHARACH ASSUMES NO LIABILITY FOR
SERVICE PERFORMED BY A NYONE OTHER THAN BACHARACH PERSONNEL.
REPAIRS ARE WARRANTED FOR 90 DAYS AFTER DATE OF SHIPMENT
(SENSORS, PUMPS, FILTERS AND BATTERIES HAVE INDIVIDUAL
WARRANTIES). SHOULD YOUR INSTRUMENT REQUIRE NON-WARRANTY
REPAIR, YOU MAY CONTACT THE DISTRIBUTOR FROM WHOM IT WAS
PURCHASED OR YOU MAY CONTACT BACHARACH DIRECTLY.

IF BACHARACH IS TO DO THE REPAIR WORK, SEND THE INSTRUMENT,
PREPAID, TO BACHARACH, INC. AT THE FOLLOWING ADDRESS.

BACHARACH, INC.
621 HUNT VALLEY CIRCLE
NEW KENSINGTON, PA 15068
ATTENTION: SERVICE DEPARTMENT

ALWAYS INCLUDE YOUR RMA #, ADDRESS, TELE PHONE NUMBER, CONTACT
NAME, SHIPPING/BILLING INFORMATION AND A DESCRIPTION OF THE
DEFECT AS YOU PERCEIVE IT. YOU WILL BE CONTACTED WITH A COST
ESTIMATE FOR EXPECTED REPAI RS PRIOR TO THE PERFORMANCE O F ANY
SERVICE WORK. FOR LI ABILITY REASONS, BACHARACH HAS A POLICY OF
PERFORMING ALL NEEDED REPAIRS TO RESTORE THE INSTRUMENT TO
FULL OPERATING CONDITION.

PRIOR TO SHIPPING EQUIPMENT TO BACHARACH, CONTACT OUR OFFICE
FOR AN RMA # (RETURNED MERCHANDISE AUTHORIZATION). ALL
RETURNED GOODS MUST BE ACCOMPANIED WITH AN RMA NUMBER.

PACK THE EQUIPMENT WELL (IN ITS ORIGINAL PACKING IF POSSIBLE), AS
BACHARACH CANNOT BE HELD RESPONSIBLE FOR ANY DAM AGE INCURRED
DURING SHIPPING TO OUR FACILITY.

COPYRIGHTS: THIS MANUAL IS SUBJ ECT TO COPYRIGHT PROTECTION; ALL
RIGHTS ARE RESERVED UNDER INTERNATIONAL AND DOMESTIC
COPYRIGHT LAWS. THIS MANUAL M AY NOT BE COPIED OR TRANSLATED, IN
WHOLE OR IN PART, IN ANY MANNER OR F ORMAT, WITHOUT THE WRITTEN
PERMISSION OF BACHARACH, INC.

SERVICE POLICY

NOTICES

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REVISIONS

BACHARACH, INC. MAKES NO WARRANTY OR REPRESENTATION,
EXPRESSED OR IMPLIED INCLUDING ANY W ARRANTY OF MERCHANTABI LITY
OR FITNESS FOR PURPOSE, WITH RESPECT TO THIS MANUAL. ALL
INFORMATION CONTAINED IN THIS MANUAL IS BELIEVED TO BE TRUE AND
ACCURATE AT THE TIME OF PRI NTING. HOWEVER, BACHARACH RESERVES
THE RIGHT TO MAKE CHANGES AT ANY TIME WITHOUT NOTICE. REVISED
COPIES OF THIS MANUAL CAN BE O BTAINED BY CONTACTING BACH ARACH,
INC.

SHOULD YOU DETECT ANY ERRORS OR OMISSIONS IN THIS MANUAL,
PLEASE CONTACT THE COMPANY AT THE FOLLOWING ADDRESS.

GDC-150 Operation Manual

TOLL FREE: 1-800-736-4666
FAX: [phone]
E-MAIL: [e-mail]
WEBSITE: www.MyBacharach.com

IN NO EVENT WILL BACHARACH, INC., OR ITS OFFICERS OR EMPLOYEES BE
LIABLE FOR ANY DIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES RESULTING FROM ANY DEFECT IN ANY MANU AL, EVEN IF ADVISED
OF THE POSSIBILITY OF SUCH DAMAGES.

BACHARACH, INC.
621 HUNT VALLEY CIRCLE
NEW KENSINGTON, PA 15068-7074
USA

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GDC-150 Operation Manual

1. OVERVIEW ................................................................................................................ 1

1.1. General Description ............................................................................................ 1

1.2. Enclosures .......................................................................................................... 1

1.3. Key Components ................................................................................................ 3

2. SPECIFICATIONS ..................................................................................................... 4

2.1. General ............................................................................................................... 4

2.2. Standard Enclosures .......................................................................................... 4

2.3. Optional Enclosures ............................................................................................ 4

2.4. Sensors (Solid-State and Catalytic) .................................................................... 5

2.5. Sensors (Electrochemical) .................................................................................. 6

2.6. Sensor Cross Sensitivity (Electrochemical) ......................................................... 7

3. INSTALLATION ......................................................................................................... 8

3.1. Mounting Holes and Conduit Ports ...................................................................... 8

3.2. Enclosure Door ................................................................................................... 9

3.3. Sensor Mounting Height Recommendations ......................................................10

3.4. Wiring the GDC-150 for Power ..........................................................................10

4. OPERATION ............................................................................................................ 13

4.1. General ..............................................................................................................13

4.2. Detecting Gas ....................................................................................................14

4.3. System Failure ...................................................................................................14

4.4. Sensor Notes .....................................................................................................14

4.5. Open Loop Diagnostic .......................................................................................15

4.6. Jumper Functions ...............................................................................................15

4.7. Adjusting the Alarm Set Point (For Relay Option Only) ......................................15

4.7.1. Calculating the Alarm Set Point Value .................................................... 15

4.7.2. Adjusting the Alarm Set Point ................................................................. 16

5. CALIBRATION ......................................................................................................... 16

5.1. Frequency Recommendations ...........................................................................16

5.2. Calibration Specifications – Gases .....................................................................17

5.3. Regulators and Flow – Solid-State and Catalytic Sensors ..................................17

5.4. Regulators and Flow – Electrochemical Sensors ...............................................17

5.5. Calculating the Span Gas Value ........................................................................18

5.6. Setting the Span Gas Value ...............................................................................19

5.7. Calibrating the Null (Zero) Value ........................................................................19

5.8. Calibrating the Span Value ................................................................................20

6. ACCESSORIES AND REPLACEMENT PARTS ...................................................... 21

6.1. Metal Protective Guards ....................................................................................21

6.2. Accessory and Replacement Part Numbers .......................................................21

TABLE OF CONTENTS

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GDC-150 Operation Manual

1. OVERVIEW

1.1. General Description

GDC-150 trans mitters are rugged, user -friendly, configurable anal og transmitter gas
detectors for use in non-hazardous (non-explosion rated) environments for
commercial HVAC and light industrial use. It can be configured for either
electrochemical toxic gas sensors, solid-state sensors, or catalytic sensors.

A standard transmitter provides a bi-color LED indicating light for power, fault
condition, and alarm (option with one dry contact relay). An optional LED digital
display is available as well as other enclosure options.

The electrochemical sensor s utilized in this device are acc urate enough to measure to
Occupational Health and Safety hazardous levels for t oxic gases and oxygen levels.

NOTE: The GDC-150 analog transmitters operate by diffusion. If a
sample draw system is desired, consult a Bacharach authorized
distributor or the factory for details.

1.2. Enclosures

Figure 1-1. Standard (NEMA 1X) Enclosures

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GDC-150 Operation Manual

150 transmitters utilizing catalytic combustible or

Figure 1-2. Optional Water-Tight (NEMA 4X) Enclosure

Figure 1-3. Water-Tight Enclosure (Side View) Showing Optional Splash Guard

NOTE: GDC-

electrochemic al H2S/SO2 s ensors are suppli ed with the water - and dust­tight NEMA 4X enclosure standard.

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1.3. Key Components

GDC-150 Operation Manual

Figure 1-4. Key Components on GDC-150 Ci rcuit Board

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