1. Manuals
  2. Brands
  3. GDS Manuals
  4. Measuring Instruments
  5. GASMAX ECx
  6. Operation & maintenance manual

GDS GASMAX ECx Operation & Maintenance Manual

Toxic / oxygen battery-powered gas monitor with smart sensor interface
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Operation & Maintenance Manual
GASMAX ECx
Toxic / Oxygen Battery-Powered Gas Monitor with
Smart Sensor Interface
Important: Read and understand contents of this instruction manual
prior to use. Improper use of equipment could result in
instrument malfunction or serious injury.
GDS Corp.
2513 Hwy 646
Santa Fe, Texas 77510
(409) 927-2980
(409) 927-4180 (FAX)
www.gdscorp.com
tech@gdscorp.com

Advertisement

Table of Contents
loading

Related Manuals for GDS GASMAX ECx

Summary of Contents for GDS GASMAX ECx

  • Page 1 Operation & Maintenance Manual GASMAX ECx Toxic / Oxygen Battery-Powered Gas Monitor with Smart Sensor Interface Important: Read and understand contents of this instruction manual prior to use. Improper use of equipment could result in instrument malfunction or serious injury.

  • Page 2: Table Of Contents

    GASMAX ECx Instruction Manual Revision 1.1 Table of Contents SECTION 1 – SAFETY INFORMATION..................3 Safety Information – Read Before Installation & Applying Power ......3 Contacting GDS Corp....................3 SECTION 2 – GENERAL DESCRIPTION ..................4 Introduction........................4 Description of the Wireless System ................5 2.2.1...

  • Page 3: Section 1 - Safety Information

    RÉPARER L’ÉQUIPEMENT. Contacting GDS Corp. GDS Corp technical support is available between the hours of 7:30am and 5:00pm Monday through Thursday and 7:30am until Noon on Friday Central Standard Time. Please call 409-927- 2980 or FAX 409-927-4180. Our email address is info@GDScorp.com...

  • Page 4: Section 2 - General Description

    Flashing front panel LED’s help notify personnel when alarm levels have been reached. Only periodic calibration checks are needed to assure dependable performance. The GM ECx provides a license free 900MHZ wireless link to any GDS Corp C1 Protector Controller or C2 Quad Protector controller (when configured with an RF900 wireless modem). Up to 16 GM ECX wireless monitors may communicate to one C1 Controller.

  • Page 5: Description Of The Wireless System

    When equipped with optional radio modems, C1 Protector and C2 Quad Protector Controllers are capable of functioning as Clients or Servers. Multiple GDS Corp controllers may receive transmissions from the same GM ECx gas monitor, but only one controller per wireless network may be configured as the Server.

  • Page 6: Radio Awake" Control Timing And Conserving Battery Life

    GM ECx. Battery life is reduced if the GM ECx is on for long periods while unable to communicate to the Server controller. IMPORTANT: DO NOT ATTEMPT TO CHARGE THIS BATTERY OR REPLACE WITH ANY OTHER THAN PART #10-0293 FROM GDS CORP.

  • Page 7: Gm Ecx 900Mhz Rf Module # 10-0291

    Revision 1.1 GM ECx Instruction Manual Figure 2-2: 10-0299/Battery I/O PCB 2.2.4 GM ECx 900MHZ RF MODULE # 10-0291 The 10-0291 RF module mounts “piggy back” to the back of the Display assembly as shown in Figure 2-3. The MMCX RF connector connects to the antenna fitting’s pigtail coax cable. There is also a slender 4 conductor cable between the 10-0291 and the 10-0299 battery I/O PCB bolted to the bottom of the enclosure.

  • Page 8: Section 3 - Installation Instructions

    GASMAX ECx Instruction Manual Revision 1.1 SECTION 3 – INSTALLATION INSTRUCTIONS Ratings and Certifications The enclosure is NRTL certified for Division 1 hazardous area installations for explosion-proof Class 1 Groups B,C,D (see Figure 3-1). The GM ECx is designed to meet ISA 92.0.01 Part 1 for Toxic Monitors.

  • Page 9: 10-0322 Magnetic Mount Option

    CAUTION: The sensor should never be installed pointing upwards. 3.3.1 10-0322 Magnetic Mount Option GDS Corp offers a magnetic mount for the GM ECx instrument enclosure. The 10-0322Magnetic Mount securely attaches the assembly to any solid steel structures that is at least 6 inches wide.

  • Page 10: System Design Specifications

    GASMAX ECx Instruction Manual Revision 1.1 System Design Specifications Power Supply: Integral non-rechargeable 3.6 volt 19AH lithium D cell battery. Replacement part # 10-0293. Power Consumption: <2mA during “sleep” mode, 40mA during “receive beacon” mode, up to 1 amp during 1 watt “transmit” mode. Transmit power may be set from 10mW to 1 watt (see Section 6-7) Transmit (TX) Power: 30dBm at highest 1W power setting.

  • Page 11: Antenna Selection

    Revision 1.1 GM ECx Instruction Manual 3.5.1 Antenna Selection GDS Corp offers locally mounted dipole antennas suitable for either Division 1 or Division 2 classified areas as shown in Figure 3-3 below. Antennas may also be remotely mounted if it is necessary to raise the height to achieve better RF L.O.S.
  • Page 12 GASMAX ECx Instruction Manual Revision 1.1 Figure 3-4: 10-0232 Display Connections (RF900 module removed for clarity) Figure 3-5: 10-0247 Smart Sensor Head Assembly Smart Sensors are automatically recognized by the GM ECX. The Smart Sensor identification screen in Figure 3-6 is shown after power-up, upon installation of a new smart sensor or by viewing INPUT type in the SENSOR SETTINGS / INFO menu (section 5-5).

  • Page 13: Sensor Type" And Gm Ecx Signal Conditioning

    Revision 1.1 GM ECx Instruction Manual 3.7.1 “Sensor Type” and GM ECX Signal Conditioning Electrochemical sensors are available for detection of many different gas compounds and ranges. The GM ECx must be configured for each type’s different response coefficients, signal strength and gain and offset requirements.

  • Page 14: Initial Toxic / Oxygen Monitor "Span" Check

    Follow these GM ECX calibration guidelines: • Calibration accuracy is only as good as the calibration gas accuracy. GDS Corp recommends calibration gases with NIST (National Institute of Standards and Technology) traceable accuracy to increase the validity of the calibration.
  • Page 15 Revision 1.1 GM ECx Instruction Manual Figure 5-1: Calibration Gas Input Use the following step-by-step procedure to perform ZERO and SPAN calibrations. 1. To enter the CAL MODE from either data display, press the DOWN / CAL key and within 5 seconds press the EDIT key.

  • Page 16: Alarm Operation

    GASMAX ECx Instruction Manual Revision 1.1 Calibration history records are logged and may be viewed in the Sensor Information menu (see section 6-5). live reading/Eunits CAL MODE info screen Counts = xxxxxx (use to change SPAN GAS value Cal Span Value=xxxxxx...

  • Page 17: Section 6 - Setup Menu Configuration

    Revision 1.1 GM ECx Instruction Manual SECTION 6 – SETUP MENU CONFIGURATION Menus Database Configuration All GM ECX configuration variables are stored in its menu database. Many menu items will contain default values from the factory and require changes to better match a user’s particular application.

  • Page 18: System Configuration Menus

    GASMAX ECx Instruction Manual Revision 1.1 again to load the new item and remove the cursor. Press NEXT to reverse out of the sub-menu. To view EC INPUT PAGE 2, press the DOWN key with the pointer aimed at the bottom item on PAGE 1.

  • Page 19: Alarm Settings

    Revision 1.1 GM ECx Instruction Manual Restore Config. restores the GM ECX menu database to the values from the most recent Backup Config. This menu item is only available if a smart sensor is not installed. The special keystroke sequence of 4 consecutive UP keys is also required to perform backup and restore operations.

  • Page 20: Sensor Information

    GASMAX ECx Instruction Manual Revision 1.1 Sensor Information: Sensor Information has the SENSOR SETUP/INFO menus shown in Figure 6-5 INSTALL NEW SENSOR INSTALL NEW SENSOR SENSOR SETTINGS/INFO EDIT Install Sensor > EDIT to install Historical CAL data Recall Cal History >...

  • Page 21: Communications Setup

    Revision 1.1 GM ECx Instruction Manual CLOCK/DELAY SETUP Time 12:35:42 Date 04/22/04 Warm Up Sec Cal Purge Sec Figure 6-6: Clock & Calendar / Delay Timer Menu COMMUNICATIONS SETUP: The Communications menu provides access to RADIO SETUP menus described below. Hop Channel and System ID settings must match these settings in the Server.

  • Page 22: Gm Ecx And C1 Base Stations

    GASMAX ECx Instruction Manual Revision 1.1 6.7.1 GM ECx AND C1 BASE STATIONS: Figure 6-8 shows correct settings for the C1 base station’s “Data From” menu. Each C1 channel’s Remote ID must match the GM ECx Remote ID setting (see section 6.7) in order for its VALUE to appear on the desired C1 channel.

  • Page 23: Lcd Contrast Adjustment

    Revision 1.1 GM ECx Instruction Manual LCD Contrast Adjustment: LCD Contrast Adj. may be set for optimum viewing using the menu shown in Figure 6-10. CONTRAST UP/DOWN to change NEXT to EXIT Figure 6-10: LCD Contrast Adjust Menu SECTION 7 – TECHNICIANS ONLY MENUS Introduction: WARNING! Users of these menus must have a detailed understanding of their functions.

  • Page 24: Set Gain To Unity (Technicians Only!)

    GASMAX ECx Instruction Manual Revision 1.1 Set Gain to Unity (Technicians only!): Set Gain to UNITY allows resetting previous calibration OFFSET to zero and GAIN to one. This is the definition of UNITY. A calibration should be performed after setting UNITY.

  • Page 25: Zero Cal Value (Technicians Only!)

    Revision 1.1 GM ECx Instruction Manual Coefficient Electrochemical Sensor Type Default EUNITS Negative Hydrogen Sulfide ppm H2S Negative Oxygen % Oxygen Negative Carbon Monoxide ppm CO Negative, Bias Ammonia ppm NH3 Negative, Bias Nitric Oxide ppm NO Negative Ethylene Oxide ppm Eth O2 Negative Hydrogen Chloride...

Table of Contents