GDS Corp GASMAX EC Bedienungsanleitung

GDS Corp.

2513 Hwy 646 Santa Fe, Texas 77510

409-927-2980 409-927-4180 (Fax) ww.gdscorp.com

Operation and Maintenance

Manual

GASMAX EC Loop-Powered Toxic Gas Monitor

GASMAX EC Operation & Maintenance Manual, Revision 3.5

Page 2

CAUTION: FOR SAFETY REASONS THIS EQUIPMENT MUST BE OPERATED AND

SERVICED BY QUALIFIED PERSONNEL ONLY. READ AND UNDERSTAND INSTRUCTION

MANUAL COMPLETELY BEFORE OPERATING OR SERVICING.

ATTENTION: POUR DES RAISONS DE SÉCURITÉ, CET ÉQUIPEMENT DOIT ÊTRE UTILISÉ,

ENTRETENU ET RÉPARÉ UNIQUEMENT PAR UN PERSONNEL QUALIFIÉ. ÉTUDIER LE

MANUE D’INSTRUCTIONS EN ENTIER AVANT D’UTILISER, D’ENTRETENIR OU DE

RÉPARER L’ÉQUIPEMENT.

REVISION HISTORY

Revision 3.5.1 4/15/13 Initial rewrite for GASMAX EC

P/N 1200-0852-01

GASMAX EC Operation & Maintenance Manual, Revision 3.5

Page 3

CONTENTS

1 SAFETY INFORMATION _______________________________________________ 8

2 GENERAL INFORMATION ______________________________________________ 9

Introduction ________________________________________________________________ 9

GASMAX Sensors ____________________________________________________________ 9

3 SPECIFICATIONS ____________________________________________________ 10

4 INSTALLATION _____________________________________________________ 11

Locating the GASMAX EC _____________________________________________________ 11

Mounting the GASMAX Instrument Enclosure ____________________________________ 11

Mounting the GASMAX emote Sensor Enclosure _________________________________ 12

Explosion Proof Installation ___________________________________________________ 12

Intrinsically Safe Installation __________________________________________________ 13

Connecting Loop Power / Signal Wiring _________________________________________ 13

Local Smart Sensor __________________________________________________________ 14

Connecting a emote Sensor __________________________________________________ 15

Initial Setup _______________________________________________________________ 16

5 CALIBRATION ______________________________________________________ 18

Calibration Overview ________________________________________________________ 18

Calibration Procedure _______________________________________________________ 19

6 OPERATION AND MAINTENANCE ______________________________________ 21

GASMAX Display Screens _____________________________________________________ 21

Data Display Screen _________________________________________________________ 21

Trend Display Screen ________________________________________________________ 22

Normal Operation __________________________________________________________ 22

GASMAX EC Operation & Maintenance Manual, Revision 3.5

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Alarm Operation – ALA M 1 and 2 _____________________________________________ 22

Alarm Operation – ALA M 3 __________________________________________________ 23

Sensor eplacement ________________________________________________________ 23

Sensor eplacement – emote Sensors _________________________________________ 25

Normal Maintenance ________________________________________________________ 25

7 USER MENUS ______________________________________________________ 26

Main Menu ________________________________________________________________ 26

System Configuration Page ___________________________________________________ 27

Measurement Name _______________________________________________________________ 27

Eunits ___________________________________________________________________________ 27

Zero (0%) ________________________________________________________________________ 27

Span (100%) ______________________________________________________________________ 27

Decimal Points ____________________________________________________________________ 27

Cal Span Value ____________________________________________________________________ 27

eadout Deadband ________________________________________________________________ 27

Track Negative ____________________________________________________________________ 27

Temp Compensation _______________________________________________________________ 28

Backup Config ____________________________________________________________________ 28

estore Config ____________________________________________________________________ 28

Upload Sensor Data ________________________________________________________________ 28

Cal Marker _______________________________________________________________________ 28

TX Sensor Life _____________________________________________________________________ 28

Alarm Settings Page _________________________________________________________ 29

Set Point _________________________________________________________________________ 29

Dead-Band _______________________________________________________________________ 29

ON Delay ________________________________________________________________________ 29

OFF Delay ________________________________________________________________________ 29

Low Trip _________________________________________________________________________ 29

Latching _________________________________________________________________________ 29

Display Event Log __________________________________________________________________ 30

Clear Event Log ___________________________________________________________________ 30

GASMAX EC Operation & Maintenance Manual, Revision 3.5

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Sensor settings page ________________________________________________________ 30

Install New Sensor _________________________________________________________________ 30

ecall Cal History __________________________________________________________________ 30

Input Type _______________________________________________________________________ 30

New Sensor ______________________________________________________________________ 30

ecent Cal _______________________________________________________________________ 30

CLOCK/DELAY SETUP Page ____________________________________________________ 31

Time ____________________________________________________________________________ 31

Date ____________________________________________________________________________ 31

Warm Up Delay ___________________________________________________________________ 31

Cal Purge Delay ___________________________________________________________________ 31

LCD CONT AST Adjustment Page ______________________________________________ 31

HELP Screen Page ___________________________________________________________ 31

DIAGNOSTICS Page __________________________________________________________ 31

Output Simulation _________________________________________________________________ 32

elay Test ________________________________________________________________________ 32

SYSTEM SECU ITY Page ______________________________________________________ 32

Contact Name ____________________________________________________________________ 32

Secure Level ______________________________________________________________________ 32

8 TECHNICIANS MENUS _______________________________________________ 33

XMITTE CONFIG Menu ______________________________________________________ 33

O2 / Toxic ________________________________________________________________________ 33

LEL / Current _____________________________________________________________________ 33

Output Zero / Span Trim ____________________________________________________________ 33

eal Time Clock ___________________________________________________________________ 33

Model ___________________________________________________________________________ 33

TECHNICAL PAGE Menu ______________________________________________________ 34

Set Balance _______________________________________________________________________ 34

Set Voltage _______________________________________________________________________ 34

Preamp Gain Set __________________________________________________________________ 35

Input Type _______________________________________________________________________ 35

Zero Cal Value ____________________________________________________________________ 36

GASMAX EC Operation & Maintenance Manual, Revision 3.5

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aw Min / Max Counts _____________________________________________________________ 36

Marker Menu _____________________________________________________________________ 36

9 TROUBLESHOOTING GUIDE ___________________________________________ 37

Toxic Sensor Indicates Fault or Overrange _______________________________________ 37

Toxic Sensor Will Not Calibrate ________________________________________________ 37

eceiving Device and GASMAX Displayed Values Don’t Match _______________________ 37

GASMAX Display Blank ______________________________________________________ 37

GASMAX Error Codes ________________________________________________________ 37

10 SPARE PARTS ____________________________________________________ 39

Display & Enclosure _________________________________________________________ 39

Sensor Head Accessories _____________________________________________________ 39

emote Sensor _____________________________________________________________ 40

11 DRA INGS AND DIMENSIONS ______________________________________ 41

GASMAX EC Operation & Maintenance Manual, Revision 3.5

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TABLE OF FIGURES

FIGU E 3-1: GASMAX EC TOXIC SENSO S .................................................................................................... 10

FIGU E 4-1: GASMAX EC EXPLOSION P OOF ENCLOSU E ........................................................................... 11

FIGU E 4-2: GASMAX EC EMOTE SENSO .................................................................................................. 12

FIGU E 4-3: GASMAX EC LOOP POWE WI ING .......................................................................................... 13

FIGU E 4-4: LOCAL SMA T TOXIC SENSO .................................................................................................. 14

FIGU E 4-5: GASMAX EC EMOTE SENSO WI ING .................................................................................... 15

FIGU E 4-6: GASMAX INT INSICALLY SAFE INSTALLATION .......................................................................... 16

FIGU E 4-7: GASMAX EC IS WI ING GUIDELINES ......................................................................................... 16

FIGU E 5-1: CALIB ATION SETUP ................................................................................................................. 19

FIGU E 5-2: CALIB ATION FLOWCHA T ...................................................................................................... 20

FIGU E 6-1: GASMAX EC DISPLAY SC EENS ................................................................................................. 21

FIGU E 6-2: GASMAX DATA DISPLAY SC EEN .............................................................................................. 22

FIGU E 6-3: GASMAX T END DISPLAY SC EEN ............................................................................................ 22

FIGU E 6-4: SENSO EPLACEMENT ............................................................................................................ 24

FIGU E 6-5: SMA T SENSO ECOGNITION SC EEN ................................................................................... 24

FIGU E 7-1: MAIN MENU FLOWCHA T ........................................................................................................ 26

FIGU E 7-2: SYSTEM CONFIG MENU ............................................................................................................ 27

FIGU E 7-3: SENSO LIFE T ANSMISSSION FO MAT ................................................................................... 28

FIGU E 7-4: ALA M SETTINGS MENU .......................................................................................................... 29

FIGU E 7-5: SENSO SETTINGS MENU ........................................................................................................ 30

FIGU E 7-6: CLOCK DELAY MENU ................................................................................................................. 31

FIGU E 7-7: CONT AST MENU ..................................................................................................................... 31

FIGU E 7-8: DIAGNOSTICS MENU ................................................................................................................ 32

FIGU E 7-9: SYSTEM SECU ITY MENU ......................................................................................................... 32

FIGU E 8-1: XMITTE CONFIG MENU .......................................................................................................... 33

FIGU E 8-2: TECHNICAL PAGE MENU ........................................................................................................... 34

FIGU E 8-3: SET GAIN TO UNITY MENU ....................................................................................................... 35

FIGU E 8-4: P EAMP GAIN SET MENU ......................................................................................................... 35

FIGU E 10-1: GASMAX EC + LOCAL SENSO SPA E PA TS .......................................................................... 39

FIGU E 10-2: GASMAX SENSO HEAD SPLASH GUA D & FLOW CELL ......................................................... 39

FIGU E 10-3: GASMAX EC EMOTE DI ECT SENSO HEAD ......................................................................... 40

GASMAX EC Operation & Maintenance Manual, Revision 3.5

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1SAFETY INFO MATION

Important – ead Before Installation

Users should have a detailed understanding of GASMAX EC operating and maintenance instructions. Use

the GASMAX EC only as specified in this manual or detection of gases and the resulting protection

provided may be impaired. ead the following WA NINGS prior to use.

WA NINGS

•The GASMAX EC gas monitor described in this manual must be installed, operated and

maintained in accordance with information contained herein. Installation in any hazardous area

must comply with all applicable restrictions, requirements and guidelines for said hazardous

areas. It is the end user customer’s final decision to ensure that the GASMAX EC is suitable for

the intended use.

•The GASMAX EC is designed and constructed to measure the level of certain gases in ambient air.

Accuracy in atmospheres containing steam or inert gases cannot be guaranteed.

•Always mount the sensor head vertically with the sensor head facing down.

•Do not paint transmitter or sensor assembly.

•Do not operate the GASMAX EC if its enclosure is damaged or cracked or has missing

components. Make sure the cover, internal PCB’s and field wiring are securely in place before

applying power.

•Do not expose the GASMAX EC to electrical shock or continuous severe mechanical shock.

Protect the GASMAX EC and related sensor assemblies from dripping liquids and high power

sprays.

•Calibrate with known target gas at start-up and check on a regular schedule, at least every 90

days. More frequent inspections are encouraged to spot problems such as dirt, oil, paint, grease

or other foreign materials on the sensor head.

•Periodically test for correct operation of the system’s alarm events by exposing the monitor to a

targeted gas concentration above the High Alarm set point.

•Use only for applications described within this manual.

GASMAX EC Operation & Maintenance Manual, Revision 3.5

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2GENE AL INFO MATION

Introduction

The GASMAX EC is a single channel fixed-point gas monitor designed to provide continuous monitoring of

toxic or combustible gases in hazardous areas. Gas values are displayed in calibrated engineering units as

well as bar graph or 30-minute trend graph format.

The GASMAX EC supports one local or remote mount sensors for

toxic gas. The advanced microcontroller, non-intrusive magnetic

interface and superior graphic LCD interface offers rapid setup,

simplified operation and enhanced diagnostics not found in previous

generation products. On-board non-volatile memory retains all

configuration data during power interruptions. A single loop-

powered 4-20 mA output allow for easy connection to control

systems or other alarm instrumentation.

Built-in user-prompted calibration makes it easy for one person to

perform calibration and maintenance without opening the enclosure

or declassifying the area. A battery-powered real-time clock and

event log allows the GASMAX EC to track calibration and alarm events for later recall on the LCD readout.

GASMAX Sensors

For toxic gases the GASMAX EC supports a wide range of electrochemical (“echem”) sensors. These

sensors use chemical reactions to sense the presence of gases such as hydrogen sulfide, chlorine, sulfur

dioxide and many others. Echem sensors output very low level signals; remote echem sensors should be

mounted no more than 15 feet from the GASMAX enclosure, the wiring should be three-conductor with

foil shield, and the wiring should be enclosed in metal conduit for maximum protection against

interference. If longer distance is required, the GASMAX offers a sensor-transmitter option for

electrochemical sensors that converts the output into a 4-20mA signal. Distances up to 500 feet are

practical with 4-20mA signals. Channel 1 on the GASMAX EC can be configured for direct echem or 4-

20mA input.

IMPO TANT: TOXIC SENSO S A E SUBJECT TO ACCELE ATED DETE IO ATION IF POWE IS NOT

SUPPLIED WITHIN 3 MONTHS OF SHIPMENT F OM GDS CO P.

GASMAX EC Operation & Maintenance Manual, Revision 3.5

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3SPECIFICATIONS

Power Input 10-30VDC at less than 0.75W

Display 64 x128 pixel LCD with engineering units, bargraph and 30-minute trend

Input Accepts microamp-level inputs from local or remote GDS Corp toxic or oxygen

deficiency sensors

Accuracy +/- 5% of full scale (typical)

Standard

Output

Two-wire 4-20mA loop powered current sink with fault and overrange indication.

Maximum loop resistance is 600 ohms with standard 24VDC supply

Temperature Electronics -40°C to +60°C. See Echem Sensor Manual for additional details

Memory On-board non-volatile memory retains all user settings

Housing Aluminum housing with epoxy paint standard; #316 stainless steel optional

Dimensions Width 5.4” (137 mm), Height 8” (203 mm), Depth 5” (127 mm)

Shipping weight 6.5 pounds (3 kg)

Approvals CSA Certified Division 1 & 2 Groups B, C, D. Suitable for explosion-proof installations

with flame arrestor. CSA Certified Division 1 & 2 Groups A, B, C, D. Intrinsically safe

when used with IS barrier #10-0263 (MTL 7787P+) or equivalent.

ATEX Certified EX II 2 G EEx d IIB + H2 T5

Warranty Two years on electronics, one year on sensor

10 Oxygen 22 Ethylene Oxide

11 Carbon Monoxide 23 Arsine

12 Chlorine 24 Silane

13 Chlorine Dioxide 25 Fluorine

14 Hydrogen 26 Phosgene

15 Hydrogen Sulfide 27 Hydrazine

16 Hydrogen Cyanide 28 Nitric Oxide

17 Hydrogen Chloride 29 Nitrogen Dioxide

18 Hydrogen Fluoride 30 Mercaptan

19 Sulfur Dioxide 31 Tetrahydrothiophene

20 Ammonia 32 Diborane

21 Ozone 33 Hydrogen Sulfide (Low H)

Figure 3-1: GASMAX EC Toxic Sensors

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