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Summary of Contents for Southland OMD-525X
- Page 1 OMD-525X Oxygen Analyzer Instruction Manual Wall Mount Oxygen Analyzer Rev 1.00 June 19th, 2022_DF Designed, Tested, and Assembled in California, USA 4045 E. Guasti Rd. #203 Ontario, CA 91761 USA : 1-949-398-2879 : sales@sso2.com : www.sso2.com...
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Page 2: Table Of Contents
OMD-525X Oxygen Analyzer Table of Contents Part 1 Introduction General Introduction Principle of Operation - The Oxygen Sensor 1.3 OMD-525X Specifications 1.4.1 General Safety Information (VAC) 1.4.2 General Safety Information (VDC) Location Installation Considerations Safety Considerations Part 2 Installation Receiving Your New Oxygen Analyzer Mounting The Oxygen Analyzer 2.3.1 Electrical Connections (VAC) -
Page 3: Introduction
Introduction General Introduction The Southland Sensing OMD-525X Oxygen Analyzer is a microprocessor based online unit designed for continous measurements in a variety of applications and gas mixtures. The analyzer was designed with the customer in mind, keeping the operations simple while still featur- ing a fast response and rugged design. Every effort has been made to use modern industrial compo-... - Page 4 OMD-525X Oxygen Analyzer Product Specification Sheet Online Trace Oxygen Analyzer, IP66 / NEMA 4X Wall Mount Enclosure Trace, Percent, or Purity Configuration Precision Fuel Cell Oxygen Sensor Technology Measure Oxygen from 0.01 ppm to 100% Large Easy-to-Read Display Intuitive User Friendly Menu Interface...
- Page 5 Product Specifications Oxygen Analyzer: Oxygen Sensor Technology: The oxygen sensor used in the OMD-525X is based on the The model OMD-525X oxygen analyzer combines a galvanic electrochemical fuel cell principal. All oxygen sensors rugged in-line design with SSO2’s precision oxygen are manufactured in house by Southland Sensing Ltd.
- Page 6 General Safety & Installation (VAC) This section is for AC powered analyzers, if your analyzer is DC powered proceed to the next page. This section summarizes the precautions applicable to the OMD-525X Oxygen Analyzer. Additional pre- cautions specific to this analyzer are contained in the following sections of the manual. To operate the analyzer safely and to obtain the best performance, follow the basic guidelines outlines in this owner’s manual.
- Page 7 General Safety & Installation (VDC) This section is for DC powered analyzers, if your analyzer is AC powered see the previous page. This section summarizes the precautions applicable to the OMD-525X Oxygen Analyzer. Additional pre- cautions specific to this analyzer are contained in the following sections of the manual. To operate the analyzer safely and to obtain the best performance, follow the basic guidelines outlines in this owner’s manual.
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Page 8: Location Installation Considerations
Introduction Location Installation Considerations The Southland Sensing OMD-525X Oxygen Analyzer is designed to be wall mounted in a general purpose area and uses a NEMA4X / IP66 Enclosure. When installed outdoors in cold areas an optional heater is recommended as well. Consider also giving the analyzer a sun shield if it is going to be mounted in the direct sunlight. -
Page 9: Installation
OMD-525X Oxygen Analyzer Installation Receiving Your New Oxygen Analyzer As soon as you receive your new oxygen analyzer carefully unpack the unit and accessories and inspect the interior and exterior of the analyzer for damage, and also verify the oxygen sensor is present. -
Page 10: Mounting The Oxygen Analyzer
Installation Mounting the Oxygen Analyzer The OMD-525X is designed for general purpose installations. If mounting in extreme temperature con- sider a secondary heated enclosure. Refer to Part 3: Operation section of this instruction manual for more information on how to operate the controls of this oxygen analyzer. - Page 11 OMD-525X Oxygen Analyzer Installation 2.2 (Cont) Mounting the Oxygen Analyzer OMD-525X Mounting Dimensions. Sizes are in mm and inches Designed, Tested, and Assembled in California, USA 4045 E. Guasti Rd. #203 Ontario, CA 91761 USA : 1-949-398-2879 : sales@sso2.com : www.sso2.com...
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Page 12: Electrical Connections (Vac)
OMD-525X Oxygen Analyzer Installation 2.3.1 Electrical Connections (VAC) This section is for AC powered analyzers, if your analyzer is DC powered proceed to the next page. Incoming power/signal output connections are made to the green terminal block located on the Back of the unit. -
Page 13: Electrical Connections (Vdc)
OMD-525X Oxygen Analyzer Installation 2.3.2 Electrical Connections (VDC) This section is for DC powered analyzers, if your analyzer is AC powered go to the previous page. Incoming power/signal output connections are made to the green terminal block located on the Back of the unit. -
Page 14: Gas Connections
CAUTION: Prior to installing the oxygen sensor read section 4.1 on per- forming a span calibration. The OMD-525X can accept either a TO2-1x or TO2-2x (for CO2 applications, i.e. natural gas) oxygen sen- sor for trace oxygen analysis. For percent measurement, the OMD-525X can accept either a PO2-160 or PO2-24 (for CO2 applications) oxygen sensor. -
Page 15: Operation
Operation Understanding the Controls and their Operation The OMD-525X Oxygen Analyzer is a feature packed unit with an easy-to-use menu interface. The key attributes within the menu are the ability to select a measurement range manually or using the auto-range mode, to calibrate the unit with a known gas, also referred to as a SPAN Calibration or SPAN CAL, and to perform a zero calibration (if necessary, most applications it is not required). -
Page 16: Setting The Date And Time
Setting the Date and Time The OMD-525X oxygen analyzer is equipped with an onboard time and date stamp on the main screen. This function is important to keep accurate if you are goin gto be taking advantage of the integral USB data logging. - Page 17 Other manufactures lock the display as well - the problem is if you over-range and the display is locked you have no idea what your oxygen value is. The OMD-525X solves this issue with a display that auto-ranges and the ability to manually lock the analog outputs.
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Page 18: Analog Output 4 - 20Ma
Signal Output (mA) = 12mA The OMD-525X has a menu feature that allows the analog output to be adjusted to compensate for any internal resistance in the connection. To adjust the 4 - 20mA enter the MENU and select SYSTEM, then select OUTPUT CAL. -
Page 19: Advanced Integral Alarms
OMD-525X Oxygen Analyzer Operation Advanced Integral Alarms The OMD-525X Oxygen Analyzer is equiped with 2 advanced relay contact alarms. These alarms can be configured as normally open or normally closed, have a delay mode built-in, and can be enabled or disabled when necessary. The alarms are rated at 5A @ 230VAC. If you are connecting to solenoid valves or a pump whose current can fluctuate greatly, it is adviseable to use a slave relay to ensure no damage occurs to the electronics. -
Page 20: Range Id
OMD-525X Oxygen Analyzer Operation Range ID ** Caution: RANGE ID converters are internally powered and do not require external power. DO NOT supply any voltage across these terminals as the output will be damaged. It is also important to assure proper grounding of the external recording device. -
Page 21: Selecting Sensor Type
OMD-525X Oxygen Analyzer Operation Selecting Sensor Type The OMD-525X Oxygen Analyzer is designed to be field-configurable for use with either trace, per- cent, or hybrid sensors. This allows you to use one analyzer for a variety of applications by simply switching out which sensor is in the housing and changing a setting in the menu, which provides a lot of flexibility in one analyzer. -
Page 22: Setting A Custom Range
OMD-525X Oxygen Analyzer Operation Setting a Custom Range The OMD-525X Oxygen Analyzer can have a custom range programmed into it in case you need a specific non-standard range. Once you have set your custom range, you can select it in the Manual Range menu to lock the 4-20 mA output to that range. To set a custom range, perform the following steps:... -
Page 23: Usb Data Logging
OMD-525X Oxygen Analyzer Operation USB Data Logging Note: We have tested 100s of USB flash drives and 99% of them work just fine. Prior to data logging important data, make sure to test your USB thumb drive and verify it is logging. The USB Icon should appear or disappear as the USB stick is installed or removed. If for some reason the electronics don’t recognize the USB stick, consider restarting the analyzer to see if the USB Icon appears. -
Page 24: Output Simulation
Operation 3.10 Output Simulation Contact the factory for more detail about simulating the output on the OMD-525X. 3.101 Output Calibration Contact the factory for more detail about calibrating the output on the OMD-525X. Designed, Tested, and Assembled in California, USA... -
Page 25: Maintenance
DOWN TO DECREASE Let the reading stabilize for about 30 - 45 seconds and then proceed to ENTER TO CAL the following steps in the OMD-525X menu: ESC TO EXIT SPAN CALIBRATION: To calibrate the transmitter, press the MENU key then use the UP/DOWN keys to highlight the SPAN CAL option and press the ENTER key. -
Page 26: Span Calibration Using Certified Span Gas
OMD-525X Oxygen Analyzer Maintenance Span Calibration using a Certified Span Gas Calibration involves using a known span gas to match and adjust the oxygen sensor / ana- lyzer combo to a known value. This can be as simple as using ambient air that tends to be a constant 20.9% or a bottle of certified span gas from your local air separation company. For... -
Page 27: Procedure For Replacing The Sensor
OMD-525X Oxygen Analyzer Maintenance Procedure for Replacing the Oxygen Sensor The characteristics of a precision electrochemical fuel cell are similar to those of a battery. They both provide an output that is nearly constant throughout their useful life and simply fall of sharply to- wards zero at the end. -
Page 28: Zero Calibration
OMD-525X Oxygen Analyzer Maintenance Zero Calibration In theory, the oxygen sensor is linear over its measurement range and has no signal output when ex- posed to an oxygen free environment. However, in reality expect the analyzer to generate a small signal... -
Page 29: Annexures
Hybrid PPM / Percent Oxygen Sensor (inert gas) Replacement Parts: PCB-525X-MAIN Circuit Board for OMD-525X PCB-525X-PS-AC Circuit Board for OMD-525X, Power VAC PCB-525X-PS-DC Circuit Board for OMD-525X, Power VDC ORING-1001 Sensor Housing O-ring For additional troubleshooting or replacement parts, please contact the factory: sales@sso2.com;... -
Page 30: Warranty
/ sensor are located visibly on the unit. Southland Sensing Ltd. reserves the right in its sole discretion to invalidate this warranty if the serial number does not appear. Limitations Southland Sensing Ltd. - Page 31 Product Identification Product Name Oxygen Sensor Series – PO2, TO2 series Synonyms Precision Electrochemical Sensor Manufacturer Southland Sensing Ltd, 4045 E. Guasti Rd. Suite 203 Ontario, CA 91761 Emergency Phone Number 1-949-398-2879 Preparation / Revision Date April 23rd, 2016 Notes Oxygen sensors are sealed, contain protective coverings and in normal conditions do not present a health hazard.
- Page 32 OMD-525X Oxygen Analyzer Annexures 5.3 Cont. Material Safety Data Sheet (MSDS) Reactivity Data Stability Stable Conditions Contributing to Instability None Incompatibility KOH = Avoid contact with strong acids or Acetic Acid = Avoid contact with strong bases Hazardous Decomposition Products KOH = None or Acetic Acid = Emits toxic fumes when heated...
- Page 33 OMD-525X Oxygen Analyzer Annexures Certificate of Conformance Model Number: OMD-525X Oxygen Analyzer Serial Number: ________________ Sensor Selection: ) TO2-1x Trace Oxygen Sensor ) TO2-2x Trace Oxygen Sensor CO2 > 0.1% ) TO2-19 Hybrid PPM / Percent Oxygen Sensor ) PO2-160 Percent Oxygen Sensor ) PO2-24 Percent Oxygen Sensor CO2 >...
- Page 34 MODBUS RS485 ASCII Bi-Directional Communication Protocol OMD-525X MODBUS ASCII Protocol The OMD-525X uses MODBUS ASCII at 19200 Baud, 8 bits of data, 1 stop bit, and Even Parity. The communication settings are not adjustable on the OMD-525X. The MODBUS ID number can be changed on the OMD-525X by pressing the MENU button and going into the MODBUS ID Number sub-menu.
- Page 35 5.5_2 MODBUS RS485 ASCII Bi-Directional Communication Protocol Gas concentration when read from or when written to the OMD-525X is in PPM, as XX XX XX.XX, ie. 19.34 PPM Oxygen on the display would be 000019.34 and would appear as 00001934.
- Page 36 OMD-525X Oxygen Analyzer Part 5 Annexures 5.5_3 MODBUS RS485 ASCII Bi-Directional Communication Protocol Command 4 will return the gas concentration, the following example is for MODBUS ID #1, and is returning 87.52 PPM, “ :010404000087526C” “:” Start byte, “01” Device ID, “04” Function – Read Input Registers, “04” Byte Count – Always 4 bytes “00”, Data Byte Hi, #1 “00”, Data Byte Lo, #1...
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