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  • provides a wide range of industrial gas detection systems including toxic, oxygen and combustibles, truly "state of the art" devices offering unparalleled features and capabilities along with Hazardous Area, Explosion Proof, UL, Atex and CSA certifications at a reasonable price. We also offer gas detection solutions with PLC & SCADA.

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Houston, TX USA

SKU#(3335) Be the First to Review this Item

GDS  GDS-58NXP0/37-28-05/0-00-0/0


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GDS GDS-58NXP0/37-28-05/0-00-0/0 (1)
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GDS GDS-58NXP Sample Draw Gas Detector and Monitoring System with local stainless steel sensor head configured for Nitric Oxide (NO) with range 0-50 ppm. Includes Sample Pump, QVGA color TFT High Visibility LCD Display, 4-20mA output plus 4 Form C 5A alarm relays, Ethernet Modbus TCP RJ-45 port with built-in web server and RS-485 MODBUS RTU slave interface. CSA Approved for Hazardous Locations. Class I Div 1.

Part# with Options:        GDS-58NXP0/37-28-05/0-00-0/0
Price with Options:        Please Email us your request for quote   


Sample Conditioning
(1) Sample Conditioning for GDS GDS58-XP & GDS78-XP
Mounting Options
(2) Mounting Plate and Enclosure Options for GDS GDS-58NXP
Enclosure Options
(3) Enclosure Options for GDS GDS58-XP
(4) Tag for GDS
(5) GDS-30 Timed Automatic Drain for 58XP, 58NXP or 58GP
Enclosure heater
(6) Enclosure heater for GDS 58XP, 58NXP or 58GP

  Availability 3 Weeks  ]

The GDS-58NXP sample draw system is an ideal solution for applications where ambient conditions are unsuitable for traditional ambient sensors, or where access to an ambient sensor would be inconvenient or dangerous. The GDS-58NXP sample draw features the new GASMAX CX gas monitor with DigitalSensor technology and advanced Ethernet / MODBUS communications. Together with a fully integrated long-life brushless sample pump, adjustable flow meter and low flow warning switch, the highly reliable GDS-58NXP can monitor locations up to 500 feet away.

GASMAX CX Gas Monitor

The new GASMAX CX dual channel gas monitor supports new GDS Corp Digital Sensors for toxic and combustible gases as well as volatile organics and inert gases such as CO 2 . The high contrast full color graphic display shows system status, gas values, programmable tag name and engineering units under full daylight conditions. Unlike previous generation detectors with point LEDs, the GASMAX CX signals alarms by flashing the entire screen, making alarm indications clearly visible to operators and technicians. A menu-driven operator interface eliminates all analog potentiometers and allows setup and calibration without hazardous area declassification. An integrated Run / Calibrate valve and user prompted calibration procedure make routine maintenance and field ‘bump tests’ quick and easy.

Reliability in Hostile Environments

Utilizing a long-life brushless DC pump, the GDS-58NXP Sample Draw is suitable for installation in hazardous areas rated Class I, Div 1, Groups B, C & D.

The GDS-58NXP is ideal for sampling toxic or combustible gases in:

  • Sumps and enclosed areas
  • Cabinets or storeroom with limited ventilation or airflow
  • Air conditioning intake or exhaust plenums and ducts
  • Boiler burners and ducting

  • Single or dual channel - monitor both H2S and LEL simultaneously
  • Supports electrochemical, PID, catalytic bead and infrared sensors
  • High quality diaphragm pump with 24VDC brushless motor
  • Designed for use in Class I, Div 1 Hazardous Locations
  • High visibility color display flashes yellow or red on alarm
  • Setup in hazardous area requires only simple magnetic wand
  • Integrated flow warning switch for ultra-reliable remote operation
  • Built-in flow meter provides visual confirmation of sample flow rate
  • Standard RJ-45 Ethernet interface with built-in web server
  • Prompted calibration procedure and cal port for easy maintenance
  • Sample lines up to 500 ft in length with latency less than 4 minutes
  • Optional 4x alarm relays and dual serial MODBUS interface
  • GASMAX CX auto-configuration with DigitalSensor technology
  • Optional matching 110/220VAC power supply available
  • Manufactured in USA

Power Input: 24VDC +/- 5% at < 10 watts. Optional 110/220VAC power supply available in separate enclosure.
Display High visibility color LCD displays engineering units, alarm levels and trend data
Sensor Channel One Supports bridge-type sensors, electrochemical sensors and 4-20mA input devices such as the GDS-IR Infrared Sensor
Sensor Channel Two Supports electrochemical sensors and 4-20mA input devices such as the GDS-IR Infrared Sensor
Standard Output Single or dual 3-wire 4-20mA current source. Max loop R is 750 ohms with nominal 24VDC power supply.
10/100 Ethernet with MODBUS/TCP and web server
Optional Output Four Form C Relays 5A @ 30VDC / 240VAC Dual RS-485 2-wire MODBUS® interface
Sample Pump 1.6L diaphragm pump with brushless 24VDC motor
NOTE: Pump may not start at temperatures below 0°C Integral flow switch generates FAULT output on 4-20mA if flow blocked or pump fails
Temp 0°C to +55°C operating
Housing Aluminum housing with epoxy paint
#316 stainless optional
Dimensions 16” x 12” x 5” for sensor types 10 - 70, 10 pounds
16” x 15” x 5” for sensor types 110+, 14 pounds
Plate, 17” x 15”, for single detector
Plate, 21” x 17”, for dual detector or 110VAC supply
Inlet / Outlet 1/4” compression, stainless steel
Approvals GASMAX II CSA Certified for Class I, Div 1, Grps B, C, D.
Enclosure rated Class II, Div 2 Grps E, F, G.
Suitable for XP installations2
Warranty 2 years from date of purchase on electronics

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    C1/SM/0000/000000/00000 C1 Multi-Point Alarm gas detector Controller with 8 or 16 channel alarm & display controller for monitoring applications. It can be configured for GAS MAX wireless gas monitors. Standard 5A SPDT common relays and up to 48 discrete relays. 1 or 2 optional..

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    1200-0375 GDS Gas Detector Calibration Gas Cylinder Nitric Oxide (NO) 50ppm. Balance Nitrogen. 58L Aluminium Cylinder. ..

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    20-0141 GDS Duct Sample Kit for GDS-58XP, GDS-58NXP and GDS-68XP sample draw gas detectors ..

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