Honeywell 4202 User Manual
  1. Manuals
  2. Brands
  3. Honeywell Manuals
  4. Accessories
  5. 4202
  6. User manual

Honeywell 4202 User Manual

Source 12 basis weight sensor
Hide thumbs

Quick Links

Honeywell
Source 12 Basis Weight Sensor
User Manual
loading

Related Manuals for Honeywell 4202

Summary of Contents for Honeywell 4202

  • Page 1 Honeywell Source 12 Basis Weight Sensor User Manual...
  • Page 2 All information and specifications contained in this manual have been carefully researched and prepared according to the best efforts of Honeywell, and are believed to be true and correct as of the time of this printing. However, due to continued efforts in product improvement, we reserve the right to make changes at any time without notice.
  • Page 3 Model 4202 Precision Basis Weight Sensor (sometimes referred to as a Nuclear Sensor). Scope This manual provides an overview of the operation of the Model 4202 Precision Basis Weight Sensor. It is limited as to the level of information provided in areas such as: ...

  • Page 4: Measurement Principles

    Measurement Principles This section describes the physical operating principles of beta-emitting basis weight sensors. Those already familiar with the measurement principles of Honeywell basis weight sensors may want to go on to next section “Features of the Precision Basis Weight Sensor.”...
  • Page 5 external influences are measured and corrected (calculated) out of the basis reading. Correctors, positive or negative, are all calculated in basis weight units (gsm) added to the uncorrected basis weight reading. Being in basis weight units allows easy comparison of the relative magnitudes. A brief description of these correctors follows.
  • Page 6 Features of the Precision Basis Weight Sensor This section contains an explanation of the major features of the Model 4202 Precision Basis Weight Sensor, starting at the source capsule and continuing through the chain of major features. A new source body is the most prominent feature of the Precision Basis Weight Sensor.
  • Page 7 influences which can affect the sensor’s reading in ways not corrected by the usual means, which would cause the flag weights (Flag2 and Flag12) to vary from their original values, the Source 12 software allows for a correction to be applied to subsequent online measurements. Designated as the Source 12 corrector, it can be calculated in four different ways to allow for maximum flexibility in real-world situations.
  • Page 8 Detailed Sensor Description Versions When ordering parts, or seeking help troubleshooting, you must know the correct sensor version or model number. At the writing of this manual, there are two versions of the Source 12 Basis Weight Sensor, -00 and - 01.
  • Page 9 Aperture and Shutter An important safety feature of the shutter mechanism requires the presence of both air pressure and electrical power to open. Thus if either air pressure or electrical power is lost while open, the shutter will close. The shutter opens by a chain of events: electrical, pneumatic, and finally mechanical. First, the computer closes a switch, sometimes referred to as making a contact output closure.
  • Page 10 Replacing this device requires removing the source body holder, and working close to the capsule. There is an assembly for easier field replacement, Honeywell part number 08672000, which contains the temperature device and three wires attached.
  • Page 11 There is a separate maintenance procedure for replacement of the fire safety pin. Warning. Only those qualified under radiation safety license and getting clearance from the Honeywell Measurex Radiation Safety Department are allowed to replace the fire safety pin. Fuse A pico fuse, labeled “F2”, is in series with the shutter signal and a spare fuse is provided on the board.
  • Page 12 Source 9 Promethium Basis Weight sensors. The detector amplifier card uses a 20 Meg ohm resistor. The gain is changed by soldering jumpers. See the schematic for the particular board used for gains and their jumper connections. See schematic for the electric flow diagram for receiver assembly Figure 2 Flow diagram of electric connection The air curtain is a major design improvement.
  • Page 13 Figure 3 Window Side Source 12 Receiver...
  • Page 14 Figure 4 Head Side Source 12 Receiver Receiver Assembly (086561XX) The receiver assembly used in Source 12 is the same as the Close Geometry Receiver assembly used in Promethium Source 9 basis weight sensors. This receiver has the following tests points. The board with these test points, 053239XX, is sometimes referred to as the “Nevada”...
  • Page 15 Figure 5 Receiver Assembly backplane PCB PN 053239XX Receiver Assembly Backplane Test pts 053239XX (Nevada PCB) Tests Points 053239XX Receiver assembly backplane Label +24 VCD RCVR RTN -350 BW (Basis Weight signal) T1 (not used) T2 (not used)
  • Page 16 High Voltage Current Inverter PN054100XX The high voltage current inverter in Source 12 converted 12VDC from RCVR power supply board to -350 for ion chamber to generate current. Figure 6 High Voltage Current Inverter board Receiver Power supply board PN 054046XX Receiver power supply board convert 24VDC from scanner to 12 and -12 VDC Figure 7 RCVR Power supply board Detector Amplifier...
  • Page 17 E2+E5, E3+E4, E8+E9 E2+E5, E3+E4, E5+E7, E8+E9 1.10 E2+E4 1.20 E2+E4, E5+E7 1.40 E2+E4. E8+E9 1.58 E2+E4, E5+E7, E8+E9 1.84 E2+E4. E6+E9 2.00 10.0 E2+E4. E5+E9 2.20 11.0 E2+E4+E6 2.40 12.0 E2+E4+E7 2.80 14.0 E2+E4+E5, E7+E8 3.20 16.0 E2+E4+E5, E6+E8 3.80 19.0 E2+E4+E8...

  • Page 18: Maintenance And Troubleshooting

    Maintenance and Troubleshooting Tools  Digital Volt Meter (at least 3 1/2 digits i.e. 1.999)  Hex Drivers with ball ends (Imperial units, that is, inches)  Personal Computer with spreadsheet and graphics programs (very helpful but not required)  Calculator (a calculator that can calculate standard deviations is very helpful) ...
  • Page 19 Figure 8 Verification display Add sample , put the data from the mylar calibration sheet that supplied Figure 9 Sample display Do background operation Do reference operation Put the mylar inside the head Do sample operation Verify the error against the factory standard ...

  • Page 20: Troubleshooting

     Check receiver voltages Check the receiver voltages on the backplane against table below Troubleshooting This chapter covers possible issues with the basis weight sensor. It is divided into two sections: • Alarm based troubleshooting: Troubleshooting steps to be taken in response to a specific alarm generated in the Experion MX system.
  • Page 21 Background volt out of limit Bad ion chamber Replace basis weight ion chamber Low air pressure Verify shutter operation Non-alarm based troubleshooting for 4202 Source 12 Basis Weight sensor model Source component Component Function Power Req’s Tests Failure modes...
  • Page 22 3. Solenoid can overheat and Fire safety pin Force capsule to Activated by Check if rod still 1. May creep retract in event of temperatures attached to housing (slowly high temperature exceeding 500 by solder. Try to move under condition degrees F move actuator with pressure)
  • Page 23 Loose lead to detector amp Detector amplifier Convert small none Monitor Offset current from ion background voltage (background) chamber to voltage and check ± 12 voltage wanders Thermal drift of amplifier Damage to wire that connect ion chamber to detector amplifier Receiver power 24 VDC to ±...
  • Page 24 PART NUMBERS Source 12 part numbers Part number Description 08655800 FLAG #1 (INNER) ASSY SX-12 08655900 FLAG #2 (OUTER) ASSY SX-12 22000127 VALVE,SOLENOID 24VDC 3 PORT,WIRE LEADS 51000183 SWITCH, SPDT, 5 AMP, 28V 61000696 CYLINDER,AIR .52BORE REV ACT,1"STRK,VITO 61000698 CYLINDER,AIR,9/16" BORE, 1" STROKE,SINGL 05277502 PCBA, DETECTOR AMPLIFIER TYPE II 05404600...