Related Manuals for GDS Corp GASMAX SSX
Summary of Contents for GDS Corp GASMAX SSX
- Page 1 Operation and Maintenance Manual GASMAX SSX Single Channel Gas Monitor GDS Corp. 1245 Butler Road League City, TX 77573 409-927-2980 409-927-4180 (Fax) www.gdscorp.com...
- Page 2 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 1.0 8//22/21 Initial Release Copyright © 2022 GDS Corp. All Rights Reserved P/N 1200-1119-01 Page 3...
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Page 3: Table Of Contents
GASMAX SSX User’s Manual, Revision 1.0 CONTENTS SAFETY INFORMATION _______________________________________________ 6 OVERVIEW _________________________________________________________ 8 INSTALLATION _____________________________________________________ 10 PROGRAMMING & SETUP ____________________________________________ 16 CALIBRATION ______________________________________________________ 22 MAINTENANCE _____________________________________________________ 24 TROUBLESHOOTING GUIDE ___________________________________________ 26 SPECIFICATIONS ____________________________________________________ 29 DRAWINGS AND DIMENSIONS ________________________________________ 30... - Page 4 FIGURE 3-1: GASMAX SSX POWER AND SIGNAL WIRING ................11 FIGURE 3-2: GASMAX SSX MODBUS WIRING ....................12 FIGURE 3-3: GASMAX SSX WITH MODBUS WIRING JUNCTION BOX ............12 FIGURE 3-4 GASMAX SSX ALARM RELAY WIRING ..................13 FIGURE 3-5: REMOTE GDS-49X TOXIC SENSOR .................... 14 FIGURE 3-6: REMOTE GDS-IR INFRARED SENSOR ..................
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Page 5: Safety Information
Users should have a detailed understanding of GASMAX SSX operating and maintenance instructions. Use the GASMAX SSX only as specified in this manual or detection of gases and the resulting protection provided may be impaired. Read the following WARNINGS prior to use. - Page 6 BE GUARANTEED. DO NOT PAINT TRANSMITTER OR SENSOR ASSEMBLY. DO NOT OPERATE THE GASMAX SSX 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.
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Page 7: Overview
This product is CSA certified as Class I, Division 1, Groups B, C and D. The GASMAX SSX features non- intrusive magnetic switches that allow for complete system... -
Page 8: Figure 2-1: Gasmax Ssx Display
• Explosion-proof housing for easy installation The GASMAX SSX has three (3) ¾” NPT threaded connectors for mounting and wiring the sensor and transmitter into a permanent installation. Field wiring connections are made on the backside of the GASMAX SSX display printed circuit board (PCB). -
Page 9: Installation
GASMAX SSX device. Sensor placement should be determined in consultation with the site safety personnel, as well as those knowledgeable of: (1) the site/facility where the equipment is being installed and (2) the potentially present gas types and their dispersion. -
Page 10: Figure 3-1: Gasmax Ssx Power And Signal Wiring
EVERY installation of EVERY site. MOUNTING THE ENCLOSURE It is recommended to mount the GASMAX SSX to a solid structure (such as a concrete wall, steel column, or angle iron) where a minimum of vibration will be transmitted to the unit. -
Page 11: Figure 3-2: Gasmax Ssx Modbus Wiring
GASMAX SSX User’s Manual, Revision 1.0 MODBUS CONNECTIONS The GASMAX SSX includes a single isolated RS-485 Serial MOBBUS slave interface. MODBUS wiring is connected to Pin 6 (“A”) and Pin 5 (“B”) on the back of the display. The common ground for the MODBUS signals is connected to Pin 4 as shown. -
Page 12: Figure 3-4 Gasmax Ssx Alarm Relay Wiring
GASMAX SSX User’s Manual, Revision 1.0 RELAY CONNECTIONS The GASMAX SSX includes three alarm relays (LOW, MEDIUM, HIGH) and a separate Fault relay. Each SPDT relay has Normally Open (NO), Common (COM) and Normally Closed (NC) terminals and each relay is capable of handling up to 8A of non-reactive power. -
Page 13: Figure 3-5: Remote Gds-49X Toxic Sensor
GASMAX SSX User’s Manual, Revision 1.0 CONNECTING REMOTE TOXIC SENSORS If the GASMAX SSX is shipped with a remote GDS-49X Toxic Sensor, the wiring between the GASMAX SSX and GDS-49X should be connected as shown below. The GDS-49X red wire (+18- 30VDC) should be connected to TB3 Pin 3 and the GDS-49X black wire (GND) should be connected to TB3 Pin 4. -
Page 14: Figure 3-6: Remote Gds-Ir Infrared Sensor
GASMAX SSX User’s Manual, Revision 1.0 Figure 3-6: Remote GDS-IR Infrared Sensor Page 15... -
Page 15: Programming & Setup
4 PROGRAMMING & SETUP USER INTERFACE The GASMAX SSX display uses three magnetic switches to enable user interaction. Pressing a magnetic wand to the left side of the enclosure activates the DOWN key. Pressing a magnetic wand to the right side activates the UP key and bringing the magnet close to the bottom of the enclosure activates the ENTER key. - Page 16 • The HIDE command allows the user to access the menu that controls how the displayed value is shown on the LCD screen • The SELF TEST menu allows the user to command the GASMAX SSX to perform certain system tests •...
- Page 17 GASMAX SSX User’s Manual, Revision 1.0 RUNNING SELF TEST To have the GASMAX SSX perform a unit self-test, perforom the following procedure NOTE: OUTPUTS AND RELAY CONTACTS ARE ACTIVE DURING SELF TEST AND WILL TRIGGER EXTERNAL ALARMS. USE CAUTION WHEN RUNNING SELF TEST 1.
- Page 18 GASMAX SSX User’s Manual, Revision 1.0 5. The screen shown will indicate that the value is being stored in nonvolatile memory. When complete, press the DOWN key to select the latch setting. 6. Press the ENTER key to select LATCH NO or LATCH YES. If YES, once the alarm is triggered, it will remain active until the alarm is reset from the TOP LEVEL MENU.
- Page 19 GASMAX SSX User’s Manual, Revision 1.0 4. Select the ON-DELAY setting. This is the value in seconds measured from the time the alarm threshold is exceeded until the relay is activated. The minimum time is 0 seconds, and the maximum time is 255 seconds.
- Page 20 4. Press ENTER to edit the MODBUS ID. This value identifies the GASMAX SSX on a serial MODBUS link and must be unique on that link. Acceptable values are 002 through 240. Using an ID value of “1”...
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Page 21: Calibration
Calibration is the process of evaluating and adjusting the precision and accuracy of measurement equipment. Although GDS Corp tests and calibrates every device at the factory, GDS Corp strongly recommends that the GASMAX SSX be calibrated in the environment where it is installed before being used to ensure personnel or equipment safety. - Page 22 GASMAX SSX User’s Manual, Revision 1.0 4. Place the calibration adapter on the sensor head and start the flow of gas. Press the ENTER key to proceed. A “Calibration Process” message will appear. When the zero-measurement process is complete a “Done”...
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Page 23: Maintenance
SENSOR REPLACEMENT The toxic sensor elements used in the GASMAX SSX detect gas in either % by volume or PPM concentrations; this element must be fully functional for the system to operate correctly. GDS Corp recommends replacing the sensing element whenever a slow response to gas is observed during the normal calibration process. - Page 24 GASMAX SSX User’s Manual, Revision 1.0 Perform the following steps to replace a toxic sensor on the GASMAX SSX Remove power from the GASMAX SSX Unscrew the sensor head cover Remove the old sensor element by pulling straight down Install a new element by aligning the three pins and pushing straight up...
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Page 25: Troubleshooting Guide
Sensor is faulty. Replace sensor • Sensor has excessive drift. Replace sensor • Failure of analog input board. Contact GDS Corp SENSOR INDICATES OVERRANGE • Some sensors go into a temporary overrange condition during warmup. Allow time for the sensor to stabilize. - Page 26 GASMAX SSX User’s Manual, Revision 1.0 mA OUTPUT STATES & MEANING The output from the GASMAX SSX can assume any value between 0mA and 23mA. Indications below 4.0mA are a result of errors detected by the GASMAX SSX. 0-20 mA Normal range 0.0 mA...
- Page 27 GASMAX SSX User’s Manual, Revision 1.0 SYSTEM DIAGNOSTICS To Enter the TOP LEVEL MENU, press (activate) the ENTER key. Once in the menu, using the UP or DOWN keys to move between s Press ENTER to enter the TOP LEVEL MENU. Press the DOWN key...
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Page 28: Specifications
GASMAX SSX User’s Manual, Revision 1.0 8 SPECIFICATIONS 18 to 30VDC as measured at the detector head Power Max current draw 250 mA (Average) 500 mA (Peak) -20⁰C to +70⁰C (operating) Temperature Humidity 0-98% noncondensing Measurement Gas concentration depends on sensor selected... -
Page 29: Drawings And Dimensions
GASMAX SSX User’s Manual, Revision 1.0 DRAWINGS AND DIMENSIONS 5.0” Conduit Entry ¾” (2x) Mounting Hole Spacing 3 7/8” 8.5” Figure 9-1: GASMAX SSX Dimensions (Toxic Sensor) Page 30... -
Page 30: Figure 9-2: Gasmax Ssx Dimensions (Infrared Sensor)
GASMAX SSX User’s Manual, Revision 1.0 5.0” Conduit Entry ¾” (2x) Mounting Hole Spacing 3 7/8” 12.5” Figure 9-2: GASMAX SSX Dimensions (Infrared Sensor) Page 31... - Page 31 GASMAX SSX User’s Manual, Revision 1.0 Page 32...
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