Document Outline

• Operator Manual
• Table 1-2. General Specifications for the 942A-200L-M4 and 942A-200L-M5 UDR
• Main Display
  • Figure 1-1. 942A-200L-M4 Universal Digital Ratemeter
  • Table 1-3 Set Point Functions
• Switch Position
• Position
• Jumper
• Part Number
• 942A-200L 20M4
• 942A-200L 20
• 942-100-15
• 11-282
• 105-37-1
• 92-7027-A
• 19-62
• 92-9042-A
• 67-80-37P
• 67-80-14S
• 67-80-4P
• 92-9106-A
• 92-9074-A
• 68-15
• 68-15
• 942A-100-4
• 942-200-50
• 942-100-70
• 82-73-1
• 942-200-60
  • Figure 2-2. Page 1 of 3. Block Diagram - Main Circuit Board
  • Figure 2-2. Page 2 of 3. Block Diagram - Main Circuit Board
  • Figure 2-2. Page 3 of 3. Block Diagram - Main Circuit Board
  • Figure 2-3. Read/Write Timing Diagram
• U14 Pin
• Address State
• Address
• Function
• Address State
• Hex Address
• Function
• Data Bit
• Function
• Data Bit
• Function
• Address State
• Hex Address
  • Function
  • Driver
• Data Bit
• Function
• Address State
• Hex Address
• Function
• Data Bit
• Function
• Hex Data
• Position
• Function
  • Data Bit
• Function
  • JP3-1
  • JP3-2
• Selection
  • Data Bit
• Function
  • Jumper
• Function
• Remarks
  • Figure 2-7. Front Panel, Model 942A-200L-M5
• Operation
• Jumper
  • Function
  • Position
  • Operation
• Switch Position
• Function
• Maintenance, Calibration and Troubleshooting
• Adjustment
• Purpose
• Test Pulse Width
• Detector Type
• DC Value at R94
• Equivalent CPM
• Jumper J7
• Connector Designations
• Pin
• Signal
• Internal Connection
• Pin
• Signal
• Internal Connection
• Pin
• Signal
• Internal Connection
• Connector
• Signal
• Connector
• Signal
• P5
• Pin
• Signal
• Pin
• Signal
  • D6
  • D7
  • BUS ENABLE
  • R/W
  • RESET
  • 40E0
  • 40A0
• Position
• Jumper
• Jumper
• Connect
  • JP5
  • 2-3
  • JP6
  • 1-2
  • JP6
  • 2-3
  • JP7
  • 1-2
  • JP7
  • 2-3
  • Table A-11 UDR Error Codes
• Function