Teledyne instruction manual Model 2002 Analog Output, TTL Outputs

Page 19

 

 

 

2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDC

2.3

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5

2.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.0

 

 

 

 

 

 

 

 

 

 

 

 

 

4.0

 

1

2

3

4

5

6

7

8

9

10

 

 

 

 

 

 

 

 

 

 

X 10-2

Torr

 

 

 

 

 

 

 

 

 

 

 

0.5 VDC Linear per Decade

 

 

 

 

 

 

3.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDC

2.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.0E-5

1.0E-4

1.0E-3

1.0E-2

1.0E-1

1.0E+0

1.0E+1

1.0E+2

1.0E+3

Pressure(Torr)

MODEL 2002 Analog Output

Figure 4.1

VDC (volts) -vs- Pressure (Torr)

4.3 TTL Outputs

TTL outputs are provided for process control. High and Low set points are entered on the front panel (see Section 3.4) andTTL signals are generated on the I/O cable in the following manner:

1)When the pressure as indicated by the Model 2002 is above the High set point, the High signal line (pin #3) will be set to aTTL high level (+5VDC). When the indicated pressure

is below the High set point, the High signal line (pin#3) will be set to a TTL low level (+0VDC).

2)When the pressure as indicated by the Model 2002 is below the Low set point, the Low signal line (pin #4) will be set to aTTL high level (+5VDC). When the indicated pressure is above the Low set point, the Low signal line (pin #4) will be set to a TTL low level (+0VDC).

TheseTTL signals are used for a variety of applications. With these signals, the user has the capability to turn off/on various equipment such as valves, flow controllers, pumps, heaters, and safety equipment.

Model 2002 page 19

Image 19
Contents Teledyne Hastings Manual Print History Table of Contents Volt Interface 4-20mA Interface Option Board12.0 General Information FeaturesModel 2002 Sensors Model 2002 Control Unit SpecificationsReceiving Inspection InstallationQuick Start Transducer Cable Attachment Transducer InstallationControl Unit Installation Environment Panel Mount InstructionsOverall Functional Description Front Panel OperationModel Control Unit Front Panel Speed Adjust RUN Mode Normal OperationScientific Notation Eeprom Calibration Restoration CAL ModeHigh and LOW Set Point Modes Maintainance and Repair Midrange Coefficient Adjustment Zero Coefficient AdjustmentGAS Mode Atmosphere Coefficient AdjustmentDefault Calibration Restoration Units ModeThis page was intentionally left blank Remote Zero Input Rear Panel DescriptionAnalog Output Voltage to pressure conversion example TTL Outputs Model 2002 Analog OutputModel Rear Panel Detail Power Entry ModulePiezoresistive Sensor Theory of OperationVo = SPV+V1 View A-A Er = σεTh4-Ta4As Pirani SensorEt = Es + Er + Eg Es = K ∆T Am/LPage = a L 273/T 1/2T -T a P Eg = Kg ∆T As/∆xDual Sensor Operation Model Dual Sensor Vacuum Gauge 28 Model Communications Option Board RS-232-E Interface SpecificationsFor RS-485 Half Duplex 2 wire Interface Connector Pin Assignments for RS-485Interrogation Commands Command SyntaxCalibration Adjustment Commands Parameter Modification CommandsReset / Restore Commands Digit# Device StatusRelay Interface Option Board Relay Board SpecificationsRelay Connector Pin Assignment Operation MA Interface Option Board Channel 10V Interface Option Board 0-10V Interface Connector Pin AssignmetsVchannel 1 = PTorr 100 Vchannel 2 = PmTorr Troubleshooting Guide 42 Model Warranty Repair Policy Warranty and RepairNon-Warranty Repair Policy 44 Model Diagrams and Drawings KF-16 HPM-2002-05 Mini Conflattm HPM-2002-03KF-25 HPM-2002-06 4 Conflattm HPM-2002-04 NPT HPM-2002-01O.D. Smooth Tube HPM-2002-07 VCR HPM-2002-02Panel Cut-Out Dimensions Model Out Line DimensionsMounting Clip Attachment Panel Mounting50 Model Model 2002 52 Model Model 2002 54 Model
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2002 specifications

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