Southland OMD-625 Instruction Manual Download Page 1

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Designed, Tested and Assembled in California, USA

4045 E. Guasti Rd. #203 Ontario, CA 91761 USA : 1-949-398-2879 : [email protected] : www.sso2.com

OMD-625 Rev 1.12 August 20th, 2020_BB

OMD-625 Oxygen Analyzer

Input Power: 12 - 24V DC

OMD-625 Oxygen Analyzer

Instruction Manual

OMD-625 Oxygen Analyzer

Instruction Manual

Summary of Contents for OMD-625

Page 1: ...5 E Guasti Rd 203 Ontario CA 91761 USA 1 949 398 2879 sales sso2 com www sso2 com OMD 625 Rev 1 12 August 20th 2020_BB OMD 625 Oxygen Analyzer Input Power 12 24V DC OMD 625 Oxygen Analyzer Instruction...

Page 2: ...zer 2 3 Electrical Connections 2 4 Gas Connections 2 5 Installing The Oxygen Sensor 2 6 Integral Sample System Flow Diagram 2 7 Sensor Selection TO2 133 vs TO2 233 3 1 Understanding The Controls And T...

Page 3: ...designed and manufactured by Southland Sensing Ltd under a strict quality procedure To understand how the oxygen analyzer functions it is important to understand a little bit of the sen sor character...

Page 4: ...put Isolated 4 20mA or 1 5 VDC Power 12 24 VDC Pressure 0 1 50 PSIG Inlet vent to atm Response Time T90 in 10 Seconds Sensor Precision Fuel Cell Temperature 10 to 50 deg C Warranty Sensor 12 Months Wa...

Page 5: ...gram The standard cells are unaffected by other background gases such as H2 He or Hydrocarbons The acidic cells work well when acid gases such as CO2 or natural gas are present The sensors are self co...

Page 6: ...static discharge This symbol is used throughout the owner s manual to caution and alert the user to recommended safety and or operating guidelines This symbol is used throughout the owner s manual to...

Page 7: ...gen analyzer is designed for installation into either a general purpose area or a Class 1 Divi sion 1 or a Class 1 Division 2 Group B C D area but it is also designed so that a hazardous gas may be in...

Page 8: ...ory The analyzer is shipped with all materials needed to install and prepare the system for operation In some instances added sample system components are necessary to condition the gas sample before...

Page 9: ...erview on how to calibrate the device using a certified span gas or ambient air A precision electrochemical oxygen sensor is included as a separate item and must be installed prior to instrument use C...

Page 10: ...he explosion proof portion of the analyzer Follow your local electrical authority for proper proce dure It is also recommended to make sure you have the proper seals for your condulet to meet your req...

Page 11: ...board red tape Place the sensor inside the housing with the metal screen mesh facing down and the circuit board contacts facing up Return upper portion of the sensor housing to the stainless steel bot...

Page 12: ...igh quality sample system and we do so by partnering with some of the best brands in the market Along with our standard sample system as shown below we can also custom design sample systems to meet un...

Page 13: ...This configuration is normally completed at the factory but is available to the user should they decide to switch sensors in the field CAUTION Do not open the oxygen sensor packaging at this time It...

Page 14: ...relays and their functionality All features are programmable selectable through the MENU button The UP DOWN arrows will allow you to select your set points and the enter button saves the data If you...

Page 15: ...DOWN keys to move the cursor to allow the user select AUTO RANGE which will all the unit to cycle through all five ranges or MANUAL RANGE which will allow the user to select a key range Decide which o...

Page 16: ...to store the custom range Once the value is stored the user will now need to select the manual range option 6 in the MANUAL RANGE mode to lock the analog output to the new custom range This can be do...

Page 17: ...to adjust the 4mA and 20mA signal output to account for signal degradation over long copper wires This might occur in the field if you have 100 feet or more of cable between your OMD 625 and control...

Page 18: ...tion can be done with the oxygen sensor installed and purging on gas To simulate the output the user will want to enter the MENU and select SYSTEM From here the user can select OUTPUT SIM which will t...

Page 19: ...to make your next selection until the alarm is config ured how you want it To set the alarm value enter the menu and the alarm you wish to configure ALARM 1 or ALARM 2 Use the UP DOWN arrows until yo...

Page 20: ...firmly touching the gold pogo pins on the housing Also make sure the sensing surface stainless steel mesh is facing the ground Let the reading stabilize for about 30 45 seconds and then proceed to th...

Page 21: ...percent or purity sensor Connect the gas sample line and set the pressure flow per section 2 4 of the users manual Once the gas is flowing let the reading stabilize for about 5 10 minutes and then pro...

Page 22: ...enclosure to expose the sensor hous ing Unscrew Counter Clockwise the stainless steel nut Once free open the top portion of the sensor housing off white nylon exposing the old oxygen sensor Remove th...

Page 23: ...urged on zero gas for ap proximately 24 hours to stabilize the flowing gas There should be no downward trend of the reading Zero Calibration Procedure Zero Calibration should proceed the span calibrat...

Page 24: ...Board for OMD 625 12 24 VDC PCB 625 PWR Power Board DC OMD 625 DISP 625 Display for OMD 625 ORING 1001 Sensor Housing O ring FUSE 1001 Replacement Fuse OMD 625 For additional troubleshooting or replac...

Page 25: ...tal if swallowed KOH Oral LD50 RAT 2433 mg kg or Acetic Acid Oral LD50 RAT 6620 mg kg Eye Electrolyte is corrosive and eye contact could result in permanent loss of vision Skin Electrolyte is corrosiv...

Page 26: ...orage Indefinitely Physical Properties Boiling Point Range KOH 100 to 115 C or Acetic Acid 100 to 117 C Melting Point Range KOH 10 to 0 C or Acetic Acid NA Lead 327 C Freezing Point KOH 40 to 10 C or...

Page 27: ...00ppm 0 10000ppm 0 25 0 1 0 5 0 10 0 25 0 100 Power 12 24 V DC 2 Wire Loop delete backlight delete alarms 12 24 V DC 4 Wire 100 240 V AC 12 24 V DC 4 Wire Bi directional MODBUS RS485 RTU Analog Output...

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