User's Manual for CM6G - Yokogawa

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9-49.3 Calibration of the Computing StationUsually this calibration only is conducted. The calibration is conducted as follows according to thedifference of the output.• WI output .............. Calibrate with WI value.• WI calorie output .. Calibrate with WI value and confirm the calorific value.• Calorie output ........ Calibrate with calorific value.In case of existing the preheating, the bias adjustment is carried out firstly.9.3.1 Bias AdjustmentThis adjustment is carried out only when the preheating circuit exists.a) Suspend the supply of the sample gas, and introduce the air to the gas line.b) Set the “SAFE EV” switch of the calorie detector to “RELEASE”.c) Set the computing station to Input/Output status display. After the indication Y4 (BIAS CHECK)become stable (20 to 30 minutes), adjust the (Y4) value of the P03(BIAS) will become [0.0] bythe data setting key.Note) In the above operation c), (Y4) and (P03) are not displayed on the same screen. For bias adjustment, select and display (Y4) and(P03) alternatively.d) When complete the adjustment, turn the switch “SAFE EV” of the calorie detector to “SET”, andsuspend the air supply to the gas line.9.3.2 Zero and Span Adjustmenta) Introduce the zero gas and ignite.b) Set the computing station to Input/Output status display. Adjust, with the “P01 (ZERO)” of theoperator, to be the “Y2 (WI)” or “Y1 [MJ/Nm 3 ]” (WI value or the calorific value of the calibrationgas).c) Change from zero gas to span gas, when, if let the span gas start flowing before the zero gasvalve is not completely closed, the burner is not extinguished. Same in the case of the other way.If burner is extinguished, ignite.d) Set the indication of the computing station to Input/Output status display. After the indication “Y2(WI)” or “Y1 (cal)” becomes stable, adjust, with the “P02 (SPAN)” of the operator, to become WIvalue or the calorific value of the calibration gas. (Display P02, adjust by the data setting key).(Confirm the result of the adjustment after displaying it as WI or cal)e) Repeat 2 or 3 times the above adjustments.f) When complete the adjustment, suspend the supply of the calibration gas.9.3.3 Other AdjustmentThe adjustment of P04 (A-CORR, RATE), P06 (G-CORR, RATE) and P05 (A-TIME), P07 (G-TIME) isusually unnecessary. (Reserve the record of the data in the initial stage).But when replacing the thermocouple, the regular adjustment for the specific characteristic isperformed, but such adjustment, consult to our service personnel.9.4 Calibration of the Density MeterRegarding GD400G Gas density meter, refer to attached Instruction Manual IM 11T3B1-01E.IM 11R02A01-02E
10-110. Maintenance10.1 Daily Check10.1.1 Air, Gas Differential Pressure AdjustmentConfirm the air or gas differential pressure or adjust the indication of X2 (A-PRESS), X3 (G-PRESS)to the “500”. The way how to adjust shall be carried out according to the paragraph 7.7 and 7.8.10.1.2 Take Out the Water Out of the Drain Pot (Pump for Steel Mill Use)If the drain is accumulated, open V-7 and take it out, and after the drain is taken out, be sure to closethe valve.10.1.3 Take Out the Drain from the Air SetTurn the knob at the bottom of the air set and take out the drain. After the drain is taken out, be sure toturn the knob to close tightly.ADJUSTMENT KNOBLOCK NUTGAUGE FOR SECONDARY PRESSUREDRAINAGE KNOBF11-1.aiFigure 10.1 Air SetIM 11R02A01-02E
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User’sManualModel CM6GGas Calorim
Page 4 and 5: iiTIPThis symbol gives information
Page 7 and 8: iModel CM6GGas CalorimeterIM 11R02A
Page 9 and 10: iii9.4 Calibration of the Density M
Page 11 and 12: 1. Outline 1-1Model CM6G Gas calori
Page 13 and 14: 2. Specifications 2-12.1 Standard S
Page 15 and 16: 2-3Utility : Water : Approx. 0.2 l/
Page 17 and 18: 2-52.2.4 OptionName Part no. Descri
Page 19 and 20: 2-72.4.2 For Town Gas Application (
Page 21 and 22: 2-92.4.4 Dimensions of Options1. Pr
Page 23 and 24: 3-13. InstallationsObserve the foll
Page 25 and 26: 4-14. Outside PipingsThe connection
Page 27 and 28: 5-15. External WiringsExternal wire
Page 29 and 30: 6. Construction and FunctionTypical
Page 31 and 32: 6-3Standard Flow Sheet1. Town Gas A
Page 33 and 34: 6.3 Differential Pressure Detection
Page 35 and 36: 6-7POWERLampIGNITLampMEASLampALARML
Page 37: 6-96.4.2 High/Low Alarm ActionHighe
Page 42 and 43: 6-146.5.3 Correcting ComputationAs
Page 44 and 45: 6-166.6 Density MeterThe GD400G is
Page 46 and 47: 7-27.4 Supply of the AirOpen valve
Page 48 and 49: 7-47.7 Air Differential Pressure Ad
Page 50 and 51: 8-28.2 Stopping Operations8.2.1 Lon
Page 52 and 53: 9-29.1.2 For Steel Mill UseSEE ALSO
Page 56 and 57: 10-210.2 Regular CheckRefer to Figu
Page 58 and 59: 10-410.2.4 Washing Bubbler or Press
Page 60 and 61: 10-610.3 Check at the Regular Servi
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Page 64 and 65: 11-211.1.2 For Steel Mill UseAs for
Page 66 and 67: 11-47) When the density meter is at
Page 68 and 69: Blank Page
Page 70 and 71: 12-2b) Print circuit board assembly
Page 72 and 73: 12-412.3 Preheater E7023NGNo. Name
Page 74 and 75: 12-612.8 Temperature Controller E70
Page 76 and 77: 2< Principle of Measurement>When us
Page 79 and 80: Revision Informationi Title Manual
Page 81 and 82: User’sManualModel CM6GGas Calorim
Page 83 and 84: 2-2Utility :Instrument Air : Approx
Page 85 and 86: 2-42.2.2 Standard AccessoriesFollow
Page 87 and 88: 5-25.1 Notes on WiringWARNING• Ca
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User's Manual for CM6G - Yokogawa

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