
Calibration Handbook
59
Manning EC-F3-O2
EC-F3-O2 Calibration Procedure
General Information
The Manning EC-F3 oxygen sensor comes factory calibrated but may require a span adjustment upon
installation to compensate for local altitude and barometric pressure conditions.
Effects of Barometric Pressure on Oxygen
The output of the Manning EC-F3-O2 sensor is affected by changes in barometric pressure. If a unit is calibrated
at a barometric pressure of 29.00 inches Hg in clean air to output 20.9 % O2, and the barometric pressure
changes to 28.00 inches Hg, the output will indicate 20.2 % O2. Because of this, the installer should always
perform a nominal calibration as described below when the unit is started up. After the nominal calibration is
performed, the output will be expected to vary slightly with barometric pressure.
Nominal Calibration: After the unit is installed and has been powered up for a minimum of 8 hours, a nominal
calibration will be achieved by the following method.
s
Be sure the unit is in clean air with the area well ventilated.
s
The sensor should indicate a concentration of approximately 20.9 %, which is the normal concentration
of oxygen in clean air. This will vary depending on elevation and barometric pressure.
s
Adjust the span pot until the sensor output indicates a concentration of 20.9 %. For the following ranges,
the test signals should be:
Range 0-25%
0.0% = 4 mA or 40 mV (TP1-TP2)
25% = 20 mA or 200 mV (TP1-TP2)
Range 15-25%
15% = 4 mA or 40 mV (TP1-TP2)
25% = 20 mA or 200 mV (TP1-TP2)
Zero Calibration
DO NOT adjust the zero pot without certified calibration gas. If zero adjustment is required, the following
procedure will zero the unit.
s
Apply zero gas at 1.0 L/min (zero gas must be in nitrogen).
s
After zero gas has been on sensor for two minutes, adjust the zero pot until the correct output is achieved.
Span Calibration
Span calibration can be achieved by performing the nominal calibration described at the beginning of this
section or by using calibration gas as follows:
s
Perform zero adjustment before spanning.
s
Apply span gas at 1.0 L/min (span gas must be in nitrogen).
s
After span gas has been on sensor for two minutes, adjust the span pot until the correct output is achieved.
Summary of Contents for 705 Series
Page 1: ...HA University Honeywell Fixed Gas Detection Calibration Handbook ...
Page 2: ......
Page 6: ......
Page 8: ......
Page 9: ...Calibration Guide VA201T VA201M ...
Page 13: ...Calibration Guide VA301D2 GasPoint II ...
Page 14: ......
Page 18: ......
Page 19: ...Calibration Guide 301IRFS S301D2 with VA301EM ...
Page 20: ......
Page 25: ...Calibration Guide VA301M S301M ...
Page 26: ......
Page 30: ......
Page 31: ...Calibration Guide VA301W Wireless Transmitter ...
Page 32: ......
Page 35: ...Calibration Guide 705 Sensepoint Combustible ...
Page 36: ......
Page 38: ......
Page 39: ...Calibration Guide 90DM4 ...
Page 40: ......
Page 43: ...Calibration Guide Apex Transmitter and Sensor ...
Page 44: ......
Page 49: ...Calibration Guide E3 Point ...
Page 50: ......
Page 53: ...Calibration Guide Manning EC F2 ...
Page 54: ......
Page 57: ...Calibration Guide Manning EC F3 O2 ...
Page 58: ......
Page 61: ...Calibration Guide Manning EC F9 NH3 ...
Page 62: ......
Page 65: ...Calibration Guide Manning EC P2 ...
Page 66: ......
Page 69: ...Calibration Guide Searchline Excel ...
Page 70: ......
Page 83: ...Calibration Guide IAQPoint ...
Page 84: ......
Page 87: ...Calibration Guide IAQPoint2 ...
Page 88: ......
Page 92: ......
Page 93: ...Calibration Guide IR F9 AirScan iR ...
Page 94: ......
Page 97: ...Calibration Guide Midas Gas Detector ...
Page 98: ......
Page 104: ......
Page 105: ...Calibration Guide Searchpoint Optima Plus ...
Page 106: ......
Page 113: ...Calibration Guide Series 3000 XPIS ...
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Page 119: ...Calibration Guide Sensepoint Toxic ...
Page 120: ......
Page 124: ......
Page 125: ...Calibration Guide SQN8x ...
Page 126: ......
Page 133: ...Calibration Guide Sensepoint XCD ...
Page 134: ......
Page 139: ...Calibration Guide Sensepoint XCD RTD ...
Page 140: ......
Page 145: ...Calibration Guide XNX Universal Transmitter ...
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Page 155: ...Calibration Guide Calibration Kits and Equipment ...
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