Fluke 943-227-15, 943-27 manual Test Point Function, RS232 Transmit

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943-227-15 Digital Preamplifier

Operator Manual

The following Test are provided on the 977-200-15M board:

Table 2-4. 977-200-15M Test Points

Test Point

Function

TP1

Electrometer Output

TP2

Analog +5 VDC supply

TP3

- 5 VDC supply

TP4

Digital +5 VDC supply (From 977-210-10M)

TP5

High Voltage Sense (Not Used)

TP6

+ 12 VDC supply (From 977-210-10M)

TP7

DC Ground

TP8

Programmable Gain Amplifier Output

TP9

Microprocessor Clock Signal

TP10

Chip Enable - EPROM

2.4 977-210-10M Interface Board

Refer to the Communications Interface, P/N 977-210-13M, schematic diagram in Appendix B. U12 is an asynchronous communications interface adapter (ACIA) which communicates with the UDR or 960 system. U1 is an analog switch used to select either the Victoreen loop or the RS232 driver/receiver for external communications. Optical isolation U10 isolates data transmitted on the Victoreen loop while the circuitry comprised of Q6, Q7, Q14, and Q18 are the actual loop drivers. Optical isolator U8 isolates the receive data from the Victoreen loop.

U2 and U3 are, respectively, the receiver and driver circuits for the RS232 port. U14 decodes address block A000 to provide chip enables to the ACIA switch input register U6.

Regulated power for the electronics (+/- 12 VDC) is derived from three terminal regulators VR3 and VR4. The ±5 Vdc logic power is derived from the three terminal regulators VR1 and VR2.

Power for the detector is normally provided by the electronic high voltage power supply in the associated Model 942A-200C UDR or Model 960 System.

The following LEDs are provided to indicate operation of certain functions of the 977-210-10M board:

Table 2-5.

977-210-10M LEDs

LED #

 

Indicates

LED1

 

+15 VDC is being supplied to the circuit board

 

 

from the UDR when ON

LED2

 

Communications – Receive;

 

 

ON (bright): both + 15 and -15 volt loops

 

 

present

 

 

ON (dim): Only one loop supply present

 

 

OFF: no loop voltage from either supply

The following Test are provided on the 977-210-10M board:

Table 2-6. 977-210-10M Test points

Test Point

Function

TP2

RS232 Transmit

2-4

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Contents Victoreen Fluke Biomedical Table of Contents Blank General Description General InformationApplication Specifications Preamplifier Variations Application Detector ReadoutFeature Specification Preamplifier Power Switch Normal Switch Function OFF Selects 300 baud 1/ON Selects 4800 baud normal settingJumper Normal Setting Function Alternate Setting Jumper Normal Setting Function Cal. PositionTB1 943-227-15 Description Connects To 977-210-10MJ4-1 Detector ConnectionsAuxiliary Equipment Recommended Spare PartsReceiving Inspection Part Number Description Used OnStorage Blank Theory of Operation Functional DescriptionFunction Hex Address Theory of Operation Main Circuit Boards Bit Position DescriptionTest Point Function RS232 TransmitVictoreen Communications Loop 943-227-15VL RS232C CommunicationsEnables Victoreen Loop Jumper Normal Function Alternate SettingJumper Normal Function Cal Setting Position Installation OperationPreamplifier Mounting Electrical InterfaceSet-up Digital Preamplifier Fail Alarm Power FailureOperation Normal OperationConfiguration Functions To B Enables Victoreen Loop To C Enables RS232C NormalTo B Normal Operation To C PGA Offset Adjust Firmware VersionSet Point Error Codes Software CalculationsBlank Maintenance, Calibration and Troubleshooting MaintenanceElectronic Adjustments Electronic CalibrationTroubleshooting Troubleshooting / AdjustmentsConnector Designations Connector DESIGNATIONS, 943-227-15 and 943-227-15VLSwitch and Jumper POSITIONS, 943-227-15 and 943-227-15VL Applicable Drawings 943-227-15VL Related Manuals Not Supplied with this documentBlank Bill of Materials- 943-227-15 and 943-227-15VL Bill of MaterialsPart Number Description Blank Cable Termination Instructions Cable Termination InstructionsDetector Cable Termination Digital Preamplifier HV Connector Notes HV Digital Preamplifier Cable Termination Instructions D Digital Preamplifier Appendix Cable Termination Instructions Digital Preamplifier Modification Sheets, Engineering Instructions Modification Sheets, Engineering InstructionsBlank Blank Fluke Biomedical

943-227-15, 943-27 specifications

The Fluke 943-27 and Fluke 943-227-15 are advanced electrical testing tools designed to meet the demands of professionals in industrial and commercial settings. Recognized for their accuracy and reliability, these devices come loaded with essential features tailored to ensure optimal performance during electrical measurements.

The Fluke 943-27 is a compact yet powerful multimeter that excels in providing precise voltage and current readings. It is equipped with a large, backlit display that ensures visibility in low-light environments. The device supports a wide range of testing parameters, including AC and DC voltage, resistance, continuity, and capacitance measurements, making it invaluable for troubleshooting electrical circuits.

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The Fluke 943-27 and 943-227-15 are also designed to be user-friendly. They feature intuitive controls and a straightforward user interface, allowing technicians to navigate functions effortlessly. The ability to perform automatic ranging simplifies measurements, eliminating the potential for errors when setting the range manually.

In conclusion, the Fluke 943-27 and 943-227-15 represent essential tools for electrical technicians who require versatility, accuracy, and durability in their testing equipment. With advanced features, reliable technologies, and a user-centric design, these multimeters not only meet but exceed the expectations of professionals in the field.
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