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9. Changing the Calibration Gas – FMA 3400/3400ST Series Only The FMA 3400/3400ST Series may be calibrated for up to three gases. These gases, their corresponding flow ranges and accuracy specifications are detailed on the calibration certificate. The calibration gas required is determined by selecting the corresponding dip switch on the front panel of the display. M-4271/0707, pg. 17 of 26 FMA 3400/3400ST Series Dip Switches Dip switch 4 is allocated to the primary calibration gas. Dip switch 5 is allocated to the second calibration gas (if applicable). Dip switch 6 is allocated to the third calibration gas (if applicable). To select the gas, the dip switch should be turned ON . All other switches allocated to gases (i.e. 4, 5 or 6 except the required switch/gas) should be set to OFF. D. Maintenance and Product Care 1. General Inlet filters should be periodically checked and cleaned or replaced as necessary. Regularly check all electrical and process connections for damage or deterioration. If the sensor is to be stored, keep both the inlet and outlet ports sealed. Do not allow any liquid or moisture to enter the sensor or damage will occur. 2. Returning Units for Repair or Recalibration To return a unit for repair or recalibration please contact the Omega Engineering Customer Service Department. An Authorized Return (AR) number will then be issued. The AR number should then be noted on the outside of the package and on any correspondence. Further details may be found on page 25 of this manual. M-4271/0707, pg. 18 of 26 E. Specifications Series FMA 3200 FMA 3400 FMA 3200ST FMA 3400ST Accuracy (including linearity) ±1.5% of Full Scale* ±1.5% of Full Scale* Second and third gases ±3.0% F.S.* ±1.5% of Full Scale* ±1.5% of Full Scale* Second and third gases ±3.0% F.S.* Repeatability ±0.25% Full Scale* Pressure Rating 150 psig (10.3 bar) 500 psig (34.5 bar) Pressure Sensitivity ±0.02% Full Scale* per psi (per 69 mbar) Temperature Rating Operating Range: 5 to 55.C Recommended Range (for best performance) : 10 to 40.C Storage Range: 0 to 70.C Temperature Sensitivity ±0.15% F.S.* or less per .C Valve Normally Closed Positive Shut-off up to 60psig (4 bar) Body Leak Integrity 1x10-7 sccs of He Wetted Materials Aluminum 304 Stainless Steel 316 Stainless Steel 303 Stainless Steel 304 Stainless Steel 316 Stainless Steel Epoxy O-Ring Material Viton® Fitting Material Choose from acetal, brass, or stainless steel Recommended Filtration 20 microns or less Optional inline filters available Compatible gases Clean, dry gases compatible with wetted materials Output Signal 0-5VDC, Impedance greater than 2.5 K. External Set-point Signal 0-5VDC, Integrated 2M. load Internal Set-point Signal N/A Front Panel Adjustment N/A Front Panel Adjustment Warm-Up Time Less than 5 minutes Integrated Display N/A 3. digit N/A 3. digit Typical Power Consumption Standard: 12 VDC @ 250 mA (12.5-15 VDC) “E” Suffix: 24 VDC @ 130 mA (22-25 VDC) Peak Power Consumption Standard: 12 VDC @ 400 mA (12.5-15 VDC) “E” Suffix: 24 VDC @ 260 mA (22-25 VDC) Electrical Connections Integrated 36” (92 mm) cable, terminated with: Standard: 6-pin Mini-DIN male (PS/2 Style) D1 Option: 9-pin D-Sub male D2 Option: 15-pin D-Sub male Certifications CE Approved 89/336/EEC (EN 55011 & EN 50082-1) 73/23/EEC Low Voltage Directive *Specifications from 10-100% of rated flow. Linearity is best fit straight line. All calibrations performed with air unless otherwise stated on calibration certificate. M-4271/0707, pg. 19 of 26 F. Dimensions ALL DIMENSIONS IN INCHES (MILLIMETERS IN BRACKETS) FMA3200/3200STSeries -1/4” Stainless Fittings Shown M-4271/0707, pg. 20 of 26 FMA3400/3400STSeries -1/4” Stainless Fittings Shown M-4271/0707, pg. 21 of 26 G. Gas K Factors Gas Chemical Symbol K Factor Acetylene C2H2 0.589 Air 1.000 Argon Ar 1.438 Butane C4H10 0.260 Carbon Dioxide CO2 0.739 Deuterium D2 1.000 Ethylene C2H4 0.598 Freon 11 CCL3F 0.330 Freon 12 CCL2F2 0.354 Freon 13 CCLF3 0.385 Freon 14 CF4 0.420 Freon 22 CHCLF2 0.460 Germane GeH4 0.570 Helium He 1.458 Hydrogen H2 1.011 Krypton Kr 1.440 Methane CH4 0.721 Neon Ne 1.443 Nitric Oxide NO 0.990 Nitrogen N2 1.000 Nitrous Oxide N2O 0.710 Oxygen O2 0.991 Ozone O3 0.446 Propane C3H8 0.383 Sulfur Dioxide SO2 0.690 Xenon Xe 1.437 These K Factors are given for reference only and are not intended as a recommendation of application suitability. Accuracy and response will be affected depending on the gas and flow range. Check the compatibility of all wetted materials before using any gas other than the calibration gas for the unit. M-4271/0707, pg. 22 of 26 H. Troubleshooting Guide Symptom Possible Cause Method of Correction Clicking noise from controller Unit in error mode Check there is sufficient pressure and that the flow path is not restricted or blocked No response Unit wired incorrectly Check wiring is according to Section B5 Loose connection Check all connectors and wiring Damaged connector pins Contact Omega Engineering Blocked flow path...

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