User's Manual for CM6G - Yokogawa

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6-26.2 Gas Pressure Control SectionThe gas pressure regulating section has two different kind types, town gas use and steel mill use.6.2.1 Town Gas UseSee AlsoRefer to Figure 6.2 and 6.3The sample gas, introduced through line filter (3-1), increase its pressure by pump, or decrease bypressure reducing valves, according to the pressure at the sampling point. The pressure gauge (3-2)indicates 8 to 18 kPa and the flowmeter (3-3) approx. 10 l/min, respectively. The sample gas, then, isset its differential pressure to 500 Pa by pressure reducing valve (3-4) and (3-6), and at this time thepressure gauge (3-5) indicates approx. 3 kPa. When the density compensation system is equipped, itis introduced to the density meter with the flow rate of 1 l/min, through the flowmeter (5-3).The standard gas is reduced its pressure to 8 to 18 kPa by the pressure reducing valve (4-1), andsupplied, same as the sample gas, with the flow rate approx. 10 l/min.6.2.2 Steel Mill UseSee AlsoRefer to Figure 6.4.The pressure of the sample gas is increased, by the pump, according to that of the sampling point.The pressure gauge (3-1) indicates approx. 6 kPa. The sample gas then flows through the washingbubbler (3-2) and the fulflo filter (3-3), and then secure a constant pressure in the pressure regulatingpot (3-4) through the water sealed pipe from the dehumidifier (3-5), then set the differential pressureby the pressure reducing valve (3-6) to 500 Pa.In case of increasing the pressure by the pump, the drain pot (3-9) is added. When the densitycompensation system is equipped, the sample gas is supplied to the density meter with its flow rateof 1 l/min, through the flowmeter (5-3). The pressure of the standard gas is reduced by the pressurereducing valve (4-1) to about 6 kPa and is supplied by the flowmeter (4-2) with the flow rate about 10 l/min.IM 11R02A01-02E
6-3Standard Flow Sheet1. Town Gas Application (Standard Type)CM6G-S6200, S6210, S6300, S6310, S6400, S6410No. Item1-1 Calorie detector1-2 Solenoid valve1-3 Orifice assembly1-4 Differential pressure transmitter (air)1-5 Differential pressure transmitter (gas)1-6 Computing station2-1 Air set2-2 Pressure reducing valve2-3 Pressure gauge2-4 Preheating chamber2-5 One touch couplerNo. Item3-1 Line filter3-2 Pressure gauge3-3 Flowmeter3-4 Pressure reducing valve3-5 Pressure gauge3-6 Pressure reducing valve3-7 Diaphragm pump (when specified)3-8 Pressure reducing valve (when specified)4-1 Pressure reducing valveNo. Item5-1 Density meter detector (when specified)5-2 Density meter converter (when specified)5-3 Flowmeter for density meter (when specified)6-1 Standard gas cylinder (supplied by customer)6-2 Standard gas cylinder (supplied by customer)7-1 Pressure reducing valve for cylinder (optional)7-2 Pressure reducing valve for cylinder (optional)V1...16 Ball valve, needle valveSAMPLE GAS INSAMPLE GAS OUTOR VENTMaximum back pressureis 1.5 kPa and no pressurefluctuation is allowed.ABV-1V-4V-2 V-33-1*15-15-23-8 *33-7 *2 V-11V-5 V-6PDTV-135-33-2 3-5V-73-3V-123-4 3-61-11-2GASDP.T1-51-31-6AIRDP.T1-4V-164-12-3V-15 2-1V-142-2C2-42-5V-9V-8DV-10EFLOW-6410.aiINST.AIR IN0.3~0.7MPa50Nl/minSTD GAS IN (ZERO)7-17-26-16-2STD GAS IN (SPAN)*1: CM6G-S610 (with density meter)*2: CM6G-S630 (with diaphragm pump)*3: CM6G-S640 (with pressure reducing valve)Figure 6.2 Flow Sheet (for Town Gas)2. Town Gas Application (Quake-proof Type)CM6G-S6110No. Item1-1 Calorie detector1-2 Solenoid valve1-3 Orifice assembly1-4 Differential pressure transmitter (air)1-5 Differential pressure transmitter (gas)1-6 Computing station2-1 Air set2-2 Pressure reducing valve2-3 Pressure gauge2-4 Preheating chamber2-5 One touch couplerNo. ItemNo. Item3-1 Line filter6-1 Standard gas cylinder (supplied by customer)3-2 Pressure gauge6-2 Standard gas cylinder (supplied by customer)3-3 Flowmeter7-1 Pressure reducing valve for cylinder (optional)3-4 Pressure reducing valve 7-2 Pressure reducing valve for cylinder (optional)3-5 Pressure gauge3-6 Pressure reducing valve V1...16 Ball valve, needle valve4-1 Pressure reducing valve5-1 Density meter detector5-2 Density meter converter5-3 Flowmeter for density meter1-11-6V-1SAMPLE GAS IN A(10 to 20kPa)SAMPLE GAS OUTOR VENTDMaximum back pressureis 1.5 kPa and no pressurefluctuation is allowed.V-4V-2 V-33-15-1V-11V-5 V-6V-13P5-3DT3-2 3-5V-73-3V-123-4 3-61-2GASDP.T1-51-3V-16AIRDP.T1-4 4-12-3V-152-22-42-5V-82-1V-14BV-9C1V-10C2INST.AIR IN0.3 to 0.7MPa50Nl/minSTD GAS IN (ZERO)7-17-26-15-2FLOW-6110.ai6-2STD GAS IN (SPAN)Figure 6.3 Flow Sheet (for Town Gas)IM 11R02A01-02E
Page 1: 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: 6. Construction and FunctionTypical
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 54 and 55: 9-49.3 Calibration of the Computing
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
Page 62 and 63: Blank Page
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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