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Pro CO Carbon Monoxide Analyzer

www.nuvair.com

11.0 Relay Output Schematics

4-20mA Connections:

The relay output uses a special “Mini Jack” plug that can be

purchased separately from Nuvair. Insert the plug into the output jack. Connections diagram
below for additional wiring.

The plug should be connected or disconnected when the instrument is switched off, or
the instrument will automatically switch off.

Open Collector Connections:

Содержание Pro CO

Страница 1: ...User Manual Pro CO Alarm Carbon Monoxide Analyzer Rev 03 19 ...

Страница 2: ...rogramming page The display will then return to the current gas reading value 7 Press the On Off button to cycle through the programming screens the Prog button to change the value of the blinking digit and the Adjust button to select which digit to program 8 To calibrate the Analyzer Span a Turn on the analyzer and program the CAL value to the CO content of the calibration gas to be used b Connec...

Страница 3: ...his User Manual contains important safety information and should always be available to those personnel operating this equipment Read understand and retain all instructions before operating this equipment to prevent injury or equipment damage Every effort was made to ensure the accuracy of the information contained within this manual however we retain the right to modify its contents without notic...

Страница 4: ...Value Setting 4 4 Conversion Value of Carbon Monoxide Sensor 4 5 Gain Factor 4 6 Calibration Value 5 0 Threshold Alarms 6 0 Powering Off 7 0 Factory Reset 8 0 Maintenance 8 1 Analyzer Care 8 2 9V Battery Replacement 8 3 Sensor Replacement 8 3 1 Handling Sensor 9 0 Spares and Accessories 9 1 Sensor 9 2 Calibration Equipment 10 0 Troubleshooting 11 0 Relay Output Schematics Appendix Analyzer Specifi...

Страница 5: ...rticular attention to information introduced by the following signal words Indicates an imminently hazardous situation which if not avoided will result in serious personal injury or death Indicates a potentially hazardous situation which if not avoided could result in serious personal injury or death Indicates a potentially hazardous situation which if not avoided may result in minor or moderate i...

Страница 6: ...ols that are environmentally sealed The Analyzer uses a Flow Adapter Cap and Flexible tubing to deliver sample gas to the Sensor Pressurized gases must be regulated to avoid damage to the analyzer Use of this Analyzer in a hyperbaric chamber will void the owner s warranty The Analyzer comes in a high impact storage case It is ready for use after calibration with an appropriate certified calibratio...

Страница 7: ...on usage The Sensor is designed for use at atmospheric pressure 0 psi The gas mixture to be analyzed must be regulated accordingly and any potential for pressure or vacuum must be avoided 2 5 Batteries One standard 9 volt battery or rechargeable Lithium battery provides power The battery is located inside the Analyzer and is user replaceable The battery should be removed any time the Analyzer will...

Страница 8: ... may expose the user to high levels of carbon monoxide resulting in personal injury or death Checking Calibration or use of the Analyzer with a low battery may result in inaccurate readings Inaccurate gas analysis can lead to serious personal injury or death If the Analyzer has been subjected to a recent change in ambient temperature allow it to stabilize for one hour before checking calibration V...

Страница 9: ... and hold the Power and Adjust buttons simultaneously until the display flashes CAL The unit will now recalibrate to the gas flow based on the value input in the CAL programming screen 10 If the reading drifts after a calibration has been performed allow the unit to sit for several minutes while powered on before attempting recalibration To calibrate the Analyzer Zero 1 Power the unit on and allow...

Страница 10: ...alibration value b Adjust Alarm values at this time if needed see 4 2 4 Check Calibration of Analyzer using Calibrated Test Gas Do not test cylinders suspected of containing carbon monoxide in a confined space that does not have good ventilation Exposure to carbon monoxide can lead to unconsciousness and death Gas even under moderate pressures can cause extreme bodily harm Never allow any gas stre...

Страница 11: ... button pressed for more than two seconds and then release the button Pr should display for two seconds and then the display will change to AL 1 and alternate with the 3 digit set value It is possible to program o AL 1 First alarm point expressed in ppm of Carbon Monoxide concentration o AL 2 Second alarm point expressed in ppm of Carbon Monoxide concentration o FSC Value expressed in ppm of Carbo...

Страница 12: ...n the FSC page you can change the analog full scale value It is not necessary to modify this value unless a new sensor is installed This is the Carbon Monoxide concentration corresponding to 20 mA on the analog output 4mA is the value at 0 ppm of Carbon Monoxide When installing a new sensor input the Fsc value displayed on the new sensor here AND in the Fct value 1 Press and hold the Prog button t...

Страница 13: ...plete your entry and save the nA value press the On Off button repeatedly until the next desired program page is displayed or the end screen appears 7 This procedure is used ONLY when a new sensor has been ordered from Nuvair and is ready to be installed The conversion value of the Carbon Monoxide sensor is set in factory and must be changed only when the CO sensor is replaced The new sensor will ...

Страница 14: ...sor through the digits 6 To complete your entry and save the Gain Factor value press the On Off button repeatedly until the next desired program page is displayed or the end screen appears 7 This procedure is used ONLY when a new sensor has been ordered from Nuvair and is ready to be installed Then gain factor is set in factory and must be changed only when the CO sensor is replaced The new sensor...

Страница 15: ...e is displayed or the end screen appears 5 0 Threshold Alarms Should the Carbon Monoxide reading go over the threshold alarms AL1 or AL2 the instrument will go into alarm mode and will activate the relays output open collector max 100mA and the internal buzzer The display will show the trespassed alarm and the actual measured value To stop the audible alarm press any key In this event the Pro Co A...

Страница 16: ...lysis concentration shown on the display would be wrong Wrong Carbon Monoxide analysis may lead to death 8 0 Maintenance 8 1 Analyzer Care Analyzers immersed in liquid or stored in wet environments may not operate properly This may result in incorrect readings Incorrect gas analysis may result in personal injury or death Protect the analyzer from excessive shock and impact Excessive shock and impa...

Страница 17: ...owing pictures illustrate the steps required to replace the batteries in the Analyzer Contact Nuvair for replacement if the battery life of a Lithium battery should noticeably degrade Step 1 Remove Screws Step 2 Remove Back Cover Step 3 Remove Replace Old Battery Step 5 Reinstall Screws Step 4 Replace Back Cover Do Not Pinch Wires Step 6 Turn Analyzer On Step 7 Perform Calibration ...

Страница 18: ...ppery sensation is an indication of a leaking Sensor The Potassium Hydroxide chemical contained in the Sensor can cause severe injury or death Seek immediate medical attention if eye contact is made or skin stinging persists 8 2 1 Handling Sensors Replacement Sensors are supplied in sealed bags Normally Sensors do not present a health hazard Before opening the bag check that the electrolyte has no...

Страница 19: ...Back Step 4 Disconnect Electrical Connector Step 5 Remove Old Sensor from Case by Unscrewing Step 6 Replace with New Sensor Step 7 Remove Shorting Plug from Sensor Electrical Connector Reconnect Step 9 Reinstall Screws Step 8 Replace Front Cover Do Not Pinch Wires Step 10 Replace Flow Adapter Cap Step 12 Check Calibration Note Reversing Polarity Will Cause Display to Read Negative Step 11 Turn Ana...

Страница 20: ...ting SYMPTOM REASON SOLUTION Battery symbol Low Battery Change the battery No display Switched off Bad connection Low Battery Switch on Check display battery connection Change the battery Reading erratic Pressure on sensor Radio transmission Sensor old or faulty Condensation on sensor Check flow Move unit away Change sensor Dry in air Display segments missing Display faulty Return to dealer Readin...

Страница 21: ... uses a special Mini Jack plug that can be purchased separately from Nuvair Insert the plug into the output jack Connections diagram below for additional wiring The plug should be connected or disconnected when the instrument is switched off or the instrument will automatically switch off Open Collector Connections ...

Страница 22: ... and visual alarms Response Time 50 seconds over complete temperature range Stabilization Time 15 minutes when first installed Power 9 volt battery rechargeable lithium battery 12 volt DIN rail or 110 230 volt wall plug in Operating Temperature 14 to 122 F 10 to 50 C Storage Temperature 14 to 140 F 10 to 60 C Operating Pressure Not to exceed 1 atmosphere absolute 0 psi Operating Humidity Non conde...

Страница 23: ...th the date of manufacture by Nuvair Maintenance Items Any materials which are consumed or otherwise rendered not warrantable due to processes applied to them are considered expendable and are not covered under the terms of this policy This includes batteries Return Policy Application for warranty service can be made by contacting Nuvair during regular business hours and requesting a Return Materi...

Страница 24: ...Nuvair Phone 1 805 815 4044 Fax 1 805 486 0900 1600 Beacon Place Oxnard CA 93033 USA info nuvair com www nuvair com Rev 03 19 ...

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