PERMA PURE LLC Micro-GASS™ Model UG-1212 Gas Analysis Sampling System User Manual www.permapure.
TABLE OF CONTENTS Warranty and Disclaimer: ............................................................................................. 5 Warnings........................................................................................................................ 7 Trademarks.................................................................................................................... 7 1.0 System and Component Description ..................................................................
Warranty and Disclaimer: Seller warrants that product supplied hereunder shall, at the time of delivery to Buyer, conform to the published specifications of Seller and be free from defects in material and workmanship under normal use and service.
Warnings WARNING Thank you for purchasing sample gas conditioning equipment from Perma Pure LLC. We want your new sample gas conditioning equipment to operate safely. Anyone who installs or uses this equipment should read this publication before installing or operating this equipment. To minimize the risk of potential safety problems, you should follow all applicable local and national codes that regulate the installation and operation of your equipment.
1.0 System and Component Description MicroGASS™ System The Perma Pure MicroGASS™ system prepares gas samples for analysis by electrochemical sensor (ECS) and other analyzers when the sample is too humid for analysis but not condensing at ambient temperature. ECS analyzers suffer reliability problems when the sample is either too wet or too dry. MicroGASS systems reduce sample humidity to the ideal range for ECS (typically 20-80%RH), while also removing dust or dirt particles.
Sample Gas Pump The sample gas pump draws sample gas from the source, through the dryer and analyzer. By generating a vacuum in the process, it serves to create the proper conditions for the sample gas to be used as the purge gas. The pump has a capacity up to 1 lpm and is made from materials highly resistant to chemical attack. 2.
3.0 Installation Mounting The Micro-GASS enclosure is rated NEMA-4 however, the system is intended for indoor installation. When choosing a mounting location, choose a location that avoids exposure to direct sunlight as it may raise the internal temperature beyond the system operating limits. The system should also not be subjected to extremely cold temperatures. Wall mounting of the system is required for proper operation of the flow meter.
Figure 3 – Electrical Connections Mechanical Connections All connections to the MicroGASS system are intended to be made with Teflon or other suitable plastic tubing Wet Sample Gas Inlet - Compression fitting for ¼″ OD Tubing. To be connected to the sample gas source via a heat traced line to prevent condensation of the sample gas. Once the heated sample line is installed, the heated line inlet fitting can be shrunk into place permanently.
Dry Sample Gas Return - Compression fitting for ¼″ OD Tubing. To be connected to analyzer’s outlet port Exhaust - Compression fitting for ¼″ OD Tubing. This port may be left open to atmosphere if the gas being sample is non-toxic and non-corrosive or piped to an outside location or vent/drain. If the port is connected to a remote drain or vent, do not exceed 10 ft of ¼” tubing or 30 ft of 3/8” tubing to avoid restriction of the flow. Figure 5 - Mechanical Connection 4.
6. Switch “Pump Power” switch to the “ON” position. To prevent wet sample gas from entering the unheated dryer, the sample pump is powered via the temperature controller. A relay in the temperature controller remains open until the system temperature comes to within 5°C of the setpoint at which point, the pump will turn on. The system will require less than 5 minutes before the operating temperature is reached but pleas allow about 15 minutes for the balance of the system to come to a stable temperature. 7.
Dryer Element Replacement Under the operating conditions specified, the Nafion® dryer element should last for several years. However, if the element becomes wet, clogged, or dirty it may require replacement. Disconnect the system power source before continuing 1. Remove four (4) screws from filter housing flange. Remove these screws 2. Open cover and lift control panel to gain access to the system components. 3. Disconnect the tube running from the pump to the dryer exhaust at the dryer end.
Remove this fitting 7. Cut the wire tie that holds the dryer in a loop. 8. Pull gently on the filter housing flange and slip the entire filter/dryer assembly out of the system. 9. Refer to the MD dryer element replacement instructions and replace the dryer element. Sample Pump Replacement Under the operating conditions specified, the sample should last for more than a year under typical conditions. Remove the four mounting screws, disconnect the electrical connector and tubing from the pump. Remove pump.
6.0 Appendices Appendix A – Specifications SAMPLE GAS INLET TEMPERATURE 65°C (150°F) MAX. 30 PSIG MAX. SAMPLE GAS PRESSURE/VACUUM -1 in. Hg MIN. SAMPLE FLOW RATE 0.5 to 1.0 LPM ELECTRICAL REQUIREMENTS (Not including heated line power of 10A max.) 115VAC, 1.2A 220VAC, 0.6A GAS INLET/OUTLET FITTINGS ¼” TUBE COMPRESSION FITTINGS OPERATING ENVIRONMENT 10°C to 40°C AMBIENT, 0 to 95% R.H. NAFION TUBE INNER DIAMETER 0.
Appendix B - Micro-GASS System Spare/Repair Parts Part # Description UG-0000-02-01 100018 MD-070-24E-F MD-070-24F-R UG-FE UG-1212-PUMP UG-FM 100396 101212 100403 Filter cap/element holder O-Ring, Viton® for filter cap Nafion® dryer element only, 0.070" O.D., 24" length Nafion® dryer assembly, 0.070" O.D., 24" length element Micro-GASS filter element (package of 5 elements) Pump, 24VDC Flow meter, sample gas (0-1.
Appendix C – CAL 3300 Temperature Controller Configuration 1 For all Micro-GASS systems with the CAL3300 Temperature controller, perform the following setup procedures. a Power Up - Apply power to the system and wait for the controller to perform its self test routine. The display will then be alternately flashing “nonE” and “inPt”. b Input sensor type - Press and hold º key. Press S key repeatedly to select the “tc K” option for K type thermocouple. Release both keys.
seconds to exit the program mode. The display will then be alternately flashing “tunE”, “At.SP” and the actual process temperature. Allow the controller time to auto-tune. When tuning is complete the display will show only the actual process temperature. This process may take up to an hour. 4 Enable low temperature alarm. a Input the alarm setpoint - Press and hold the T key until “LEVL” appears. Press and hold the º key. Press the T key to move to level 1. Release the two keys.
Appendix D – Drawings 23
Cutsheet Drawing 25
Electrical Diagram 27
Flow Diagram 29
