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Related Manuals for Ametek LAND MILLWATCH
Summary of Contents for Ametek LAND MILLWATCH
- Page 1 MILLWATCH / SILOWATCH USER GUIDE PUBLICATION N 802767 LANGUAGE: ENGLISH ISSUE: 17 DATE: 25 OCTOBER 2022 Millwatch / Silowatch (CO Single Stream, including High CO) & Silowatch (CO & O Single Stream) Q U A L I T Y C U S T O M E R S O L U T I O N S...
- Page 2 Observe precautions for handling electrostatic discharge sensitive devices. Equipment Operation Use of this instrument in a manner not specified by AMETEK Land may be hazardous. Read and understand the user documentation supplied before installing and operating the equipment. The safety of any system incorporating this equipment is the responsibility of the assembler.
- Page 3 This manual is provided as an aid to owners of AMETEK Land’s products and contains information proprietary to AMETEK Land. This manual may not, in whole or part, be copied, or reproduced without the expressed written consent of AMETEK Land.
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Page 4: Table Of Contents
Millwatch / Silowatch Single Stream Contents General Description Installation Dos and Don'ts Service Requirements Diagram of Monitor Connecting the Electrical Power Supply Connecting the Autocal Unit* Millwatch / Silowatch (CO single stream, including high-CO) Probe Dimensions and Mounting Flange Details Coal Mill Probe Abrasive Applications Standard Probe Non Abrasive Applications Recommended Installation for Probe... - Page 5 Single Stream Millwatch / Silowatch Essential Setup Procedures 17.1 The Entry Code 17.2 Set the Time and Date 17.3 Set the Alarm Levels 17.4 Selecting an appropriate alarm level. 17.5 Select the Units of Measurement 17.6 Set the Automatic Calibration Times and Calibration Gas Concentrations Diagnostics 18.1 Fault Messages...
- Page 6 Millwatch / Silowatch Single Stream Blank...
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Page 7: General Description
Single Stream Millwatch / Silowatch General Description This User Guide gives instructions on how to install, operate and maintain the following instruments: • Millwatch / Silowatch (CO single stream, including High-CO) • Silowatch (CO + O single stream) Each instrument is an extractive gas analyser designed to monitor carbon monoxide (CO) levels in coal pulverizing mills, hoppers and storage silos. -
Page 8: Installation Dos And Don'ts
Millwatch / Silowatch Single Stream Installation Dos and Don'ts WARNING Isolate the electricity supply before starting work. WARNING The Millwatch/Silowatch Detector is permanently connected to an electricity supply. An external switch or circuit breaker is required. An external over current protection device must be provided as close to the monitor as possible. -
Page 9: Service Requirements
Single Stream Millwatch / Silowatch Service Requirements Service Requirement Size/Specification Calibration gas* 1 to 2 bar (15 to 30 psi) 4 l/min (0.15 ft /min) during CO in Nitrogen calibration 20 litres (0.7 ft 1/4 in outside diameter PTFE, nylon or stainless steel tube Instrument air* 1 to 2 bar (15 to 30 psi) 1/4 in outside diameter PTFE,... -
Page 10: Diagram Of Monitor
Millwatch / Silowatch Single Stream Diagram of Monitor Weight: 53 kg (117 lb) Instrument air Calibration gas Condensate removal Cable glands Cooling air Sample line connection Note blowback air is supplied directly to the blowback unit. User Guide... -
Page 11: Connecting The Electrical Power Supply
Single Stream Millwatch / Silowatch Connecting the Electrical Power Supply Where no case heater or antifreeze line are used, the power supply is connected using the plug supplied with the instrument. Where a case heater and/or antifreeze line are used, the power supply is connected on the terminal rail. -
Page 12: Connecting The Autocal Unit* * Millwatch / Silowatch (Co Single Stream, Including High-Co)
Millwatch / Silowatch Single Stream 5.1 Connecting the Autocal Unit* Millwatch / Silowatch (CO single stream, including high-CO) Nº Description Not used Instrument air (for calibration) Not used CO calibration gas Not used Not used High-range CO calibration gas Condensate drain (½” - 14 NPT Thread) Cable glands Safety pressure exit Not used... -
Page 13: Probe Dimensions And Mounting Flange Details
Single Stream Millwatch / Silowatch Probe Dimensions and Mounting Flange Details 6.1 Coal Mill Probe Abrasive Applications 099.392 0.5 m probe and mounting flange 321.006 Filter 321.005 Abrasion shield Typical installation of Mill Probe in a Classifier Outlet User Guide... -
Page 14: Standard Probe Non Abrasive Applications
Millwatch / Silowatch Single Stream 6.2 Standard Probe Non Abrasive Applications Part Nº Probe length 704.424 500 mm 702.759 1000 mm User Guide... -
Page 15: Recommended Installation For Probe
Single Stream Millwatch / Silowatch Recommended Installation for Probe Position the analyser and probe below the blowback unit to allow any condensate to drain. 7.1 Recommendations for Installing the Instrument Air Supply and Calibration Gas Cooling air supply Calibration air supply Compressed air supply Mill/Silowatch Detector Calibration gas (CO), 2... -
Page 16: Connecting The Probe
Millwatch / Silowatch Single Stream 7.2 Connecting the Probe Sample gas Calibration gas Compressed air Alternative entry for antifreeze line Blowback power An alternative probe is available for non-abrasive applications. All installations have the probe blowback facility, however the probe type is optional. In hazardous areas, the blowback valve is located within the analyzer. -
Page 17: Installing The Antifreeze Line
Single Stream Millwatch / Silowatch Installing the Antifreeze Line The antifreeze sample line provides trace heating to prevent moisture in the sample from freezing and causing a blockage in cold ambient temperatures. It includes two 1/4” tubes, one for sample and one for calibration gas. The sample line must be installed and terminated in accordance with the instructions from the sample line manufacturer. -
Page 18: Connecting The Antifreeze Line
Millwatch / Silowatch Single Stream 8.1 Connecting the Antifreeze Line Connections viewed from the inside of the analyser. Note: Plugs are fitted to the outside of the case when anti-freeze lines are used. User Guide... -
Page 19: Blowback Unit
Single Stream Millwatch / Silowatch Blowback Unit In hazardous areas, the blowback valve is located within the analyzer. 9.1 Blowback unit with antifreeze line Do not adjust the regulator. Sample gas from probe Calibration gas to probe Antifreeze line, sample gas to monitor Antifreeze line, calibration gas from monitor Compressed air (60 to 120 psi, 4 to 8 bar) Blowback trigger from monitor... -
Page 20: Connecting The Blowback Trigger
Millwatch / Silowatch Single Stream 10 Connecting the Blowback Trigger Connect the blowback unit to Conn 21. Service Requirement Size/Specification Blowback trigger CONN 21 Pin 1 (0 V dc) Blowback unit Pin 1 CONN 21 Pin 2 (24 V dc) Blowback unit Pin 2 User Guide... -
Page 21: Input Connection To Trigger Standby
Single Stream Millwatch / Silowatch 11 Input Connection to Trigger Standby The standby mode can be used to protect the analyser during abnormal modes of operation for example when a mill is being purged with steam or during periods where the plant is not operational. What happens when the monitor is in standby? •... -
Page 22: Electrical And Signal Connections
Millwatch / Silowatch Single Stream 12 Electrical and Signal Connections All electrical work must be carried out by a competent person. Power and signal cabling are the responsibility of the customer and should comply with local regulations. Cables should be selected of a conductor size and insulation suitable for the purpose used. -
Page 23: Millwatch / Silowatch (Co Single Stream, Including High-Co)
Single Stream Millwatch / Silowatch 12.1 Summary of Connections Millwatch / Silowatch (CO single stream, including High-CO) Item From High Alarm Conn 13 Pin 1 Customer's recording device Common Pin 2 Pin 3 Mid Alarm Conn 15 Pin 1 Customer's recording device Common Pin 2 Pin 3... -
Page 24: Silowatch (Co & O 2 Single Stream)
Millwatch / Silowatch Single Stream 12.2 Summary of Connections Silowatch (CO & O single stream) Item From High Alarm Conn 13 Pin 1 Customer's recording device Common Pin 2 Pin 3 Mid Alarm Conn 15 Pin 1 Customer's recording device Common Pin 2 Pin 3... -
Page 25: Digital Inputs And Outputs
Single Stream Millwatch / Silowatch 13 Digital Inputs and Outputs WARNING Trigger Connections must be volt-free. Alarm, maintenance and system OK relays J2 External Calibration Trigger Push-button or relay contacts must remain closed for more than 2 seconds. The calibration will not start until it opens again. -
Page 26: Analogue Outputs
Millwatch / Silowatch Single Stream 14 Analogue Outputs Item Function From CO 4 - 20mA output Conn 23 Pin 1 Customer's connection Pin 2 Pin 3 4 - 20mA output Conn 10 Pin 1 Customer's connection Pin 2 Pin 3 * Silowatch (CO &... -
Page 27: Description Of The Control Panel
Single Stream Millwatch / Silowatch 15 Description of the Control Panel 000 ppm SYSTEM OK The composite gas reading is displayed by pressing GAS READING. Arrows Toggle ON/OFF or YES/NO options, change values, scroll lists DIAGS Diagnostics, shows number of faults. Press to list fault messages in turn SYSTEM DATA Sensor, cooling and flow data MAINTENANCE... -
Page 28: Warm Up Routine
Millwatch / Silowatch Single Stream 16 Warm Up Routine The warm up routine is started automatically when the monitor is switched on. The sample gas chiller cools to its operating temperature. COOLER: n ºC system cooling The default setting 4 ºC (39 ºF). This can take up to 30 minutes. -
Page 29: Essential Setup Procedures
Single Stream Millwatch / Silowatch 17 Essential Setup Procedures 17.1 The Entry Code Press SETUP on the control panel. Use the arrow keys on the control panel to change the value displayed. If you change the code do not forget it. Press SETUP again. -
Page 30: Set The Automatic Calibration Times And Calibration Gas Concentrations
Millwatch / Silowatch Single Stream Use the down arrow to UNITS. ppm or mg/Nm Press SETUP. mg/Nm = ppm 1.25 Use the arrow keys to change the value and (STD = 0° C and 101.3 kPa) press SETUP to confirm. To exit the SETUP menu press GAS READINGS. 17.6 Set the Automatic Calibration Times and Calibration Gas Concentrations Checking and entering the calibration gas concentration is essential. -
Page 31: Diagnostics
The diagnostics display has no affect on the operation of the monitor. Fault Possible Cause Suggested Solution ADC FAULT Microprocessor failure may cause Contact AMETEK Land false readings *COOLER FAILURE Cooler is less than 10% below Check air supply to cooler ambient for more than 5 minutes Electronic fault, cooler fault... -
Page 32: Key To Menu Items
Millwatch / Silowatch Single Stream 18.3 Key to Menu Items SETUP ENTRY CODE: 4 Any invalid entry code will allow values to be seen but not changed. 18.3.1 Menu options - Millwatch / Silowatch (CO single stream, including High-CO) ALARM A 2000 ppm CO alarm level 0 to 4000 in units of 10 O/P1 MIN... -
Page 33: Menu Options - Silowatch (Co & O2 Single Stream)
Single Stream Millwatch / Silowatch 18.3.2 Menu options - Silowatch (CO & O2 single stream) ALARM A 2000 ppm CO alarm level 0 to 4000 in units of 10 O/P1 MIN 4 mA CO minimum current of analogue output 0, 2 or 4 mA O/P1 MAX 20 mA CO maximum current of analogue output 0, 2 or 4 mA... -
Page 34: Technical Specification
Millwatch / Silowatch Single Stream 19 Technical Specification Coal Mill Probe Probe material Hardened mild steel Probe filter Stainless steel Weight 3.5 kg (7.7 lb) Flue gas temperature 200 ºC maximum Analyser Ambient Temperature 0 ºC to 45 ºC (32 ºC to 113 ºF), -20 ºC to 45 ºC (-4 ºF to 113 ºF) with optional case heater 0 ºC to 50 ºC (32 ºF to 122 ºF) with optional cooler Weight... -
Page 35: Spare Parts
Single Stream Millwatch / Silowatch 20 Spare Parts Part Number Description Quantity 802769 Two Year Spares Kit - Single Stream Millwatch/Silowatch 317.476 Gas filter 801346 Membrane Disc Filter 801402 Twin Autoprene Tube Assembly 317.553 Replacement Pump Head 317.552 Replacement Viton Diaphragm 801387 Air Pump (Linear) 807478... -
Page 36: Location Of Spares
Millwatch / Silowatch Single Stream 20.1 Location of Spares User Guide... -
Page 37: System Flow Diagrams
Single Stream Millwatch / Silowatch 20.2 System Flow Diagrams 20.2.1 Millwatch / Silowatch (CO single stream, including High-CO) User Guide... - Page 38 Millwatch / Silowatch Single Stream 20.2.2 Silowatch (CO + O single stream) User Guide...
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Page 39: Calibration
Single Stream Millwatch / Silowatch 21 Calibration Regular calibration is essential to maintain the accuracy of the CO measurement, and also to demonstrate that the sensor is functioning correctly. The choice of calibration interval needs to balance a number of factors: •... -
Page 40: Preventative Maintenance
Millwatch / Silowatch Single Stream 22 Preventative Maintenance 22.1 Maintenance Relay Before starting work switch on the maintenance relay. MAINT > ON. Procedure 6 Months 2 Years 3 Years Part Nº Inspect the monitor for damage or corrosion Check air and gas pressure flows ... -
Page 41: Replacing The Pump Head
Single Stream Millwatch / Silowatch 22.3 Replacing the Pump Head Isolate the monitor. Remove the gas sample pipes. Remove the screws from the pump head assembly. The pump head is replaced as one unit. Part number 317.553 22.4 Replacing the pump diaphragm 317.552 Isolate the monitor. - Page 42 Millwatch / Silowatch Single Stream Appendix 1 Parameter Record Sheets Use the tables below to record your parameter settings. Unit Parameter Actual Units Description Setting ALARM 1 Sensor 1 alarm level. ALARM 2 Percent O2 alarm level. O/P 1 MIN Minimum current for sensor 1 gas current loop O/P.
- Page 43 Single Stream Millwatch / Silowatch Unit Parameter Actual Units Description Setting FUEL 2 k2 Calculation constant (k2) for Fuel Type 2. FUEL 2 CO MAX Stoichometric value of Fuel Type 2. FT MIN DegC Minimum value for the flue temperature CLIP. FT MAX DegC Maximum value for the flue temperature CLIP.
- Page 44 • Enhancing user skills by providing access to product and application experts. AMETEK Land’s global service network provides unparalleled after-sales services to ensure you get the best performance and value from your AMETEK Land products. Our dedicated service centre teams and on- site engineers are trained to deliver the highest standard of commissioning, maintenance and after-sales support.