Omega Engineering CYD201 and CYD208 manual Identifying Esds Components, Handling Esds Components

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OMEGA Model CYD201/CYD208 User’s Manual

1.3.1Identifying ESDS Components

Below are some industry symbols used to label components as ESDS:

1.3.2Handling ESDS Components

Observe all precautions necessary to prevent damage to ESDS components before installation. Bring the device and everything that contacts it to ground potential by providing a conductive surface and discharge paths. At a minimum, observe these precautions:

1.De-energize or disconnect all power and signal sources and loads used with unit.

2.Place unit on a grounded conductive work surface.

3.Ground technician through a conductive wrist strap (or other device) using 1 M￿series resistor to protect operator.

4.Ground any tools, such as soldering equipment, that will contact unit. Contact with operator's hands provides a sufficient ground for tools that are otherwise electrically isolated.

5.Place ESDS devices and assemblies removed from a unit on a conductive work surface or in a conductive container. An operator inserting or removing a device or assembly from a container must maintain contact with a conductive portion of the container. Use only plastic bags approved for storage of ESD material.

6.Do not handle ESDS devices unnecessarily or remove from the packages until actually used or tested.

1.4SAFETY SUMMARY

Observe these general safety precautions during all phases of instrument operation, service, and repair. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended instrument use. OMEGA assumes no liability for Customer failure to comply with these requirements.

Ground The Instrument

To minimize shock hazard, connect instrument chassis and cabinet to an electrical ground. The instrument comes with a 3-conductor AC power cable. Plug it into an approved three-contact electrical outlet or use a three- contact adapter with the green ground wire firmly secured to an electrical ground (safety ground) at the power outlet. The power cable jack and mating plug meet Underwriters Laboratories (UL) and International Electrotechnical Commission (IEC) safety standards.

Introduction

1-5

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Contents M789-038A June Return Requests / Inquiries WarrantyTable of Contents Table of Contents List of Illustrations This Page Intentionally Left Blank Table of Contents Model CYD201/CYD208 General Description Chapter IntroductionGeneral Resolution Model CYD201/CYD208 SpecificationsHandling Liquid Helium and Liquid Nitrogen LHe and LN2 Safety PrecautionsHandling Cryogenic Storage Dewars Electrostatic Discharge Recommended First AidGround The Instrument Safety SummaryIdentifying Esds Components Handling Esds ComponentsDo Not Substitute Parts Or Modify Instrument Safety SymbolsDo Not Operate In An Explosive Atmosphere Keep Away From Live CircuitsRepackaging for Shipment Chapter InstallationInspection and Unpacking Sensor Installation Recommendations Power and Ground RequirementsFour-Lead Measurement Two-Lead Vs Four-Lead MeasurementsTwo-Lead Measurement Sensor Mounting Connecting Leads To The SensorMeasurement Errors Due To AC Noise Terminal Description Sensor Input ConnectionsJ1 Input Rack Mounting Sensor Curve DefinitionModel CYD208-DIN Rack Mounting Hole SizesPower UP Errors Initial Power UP SequenceThis Page Intentionally Left Blank Installation Units KEY Chapter OperationAlarm Operation Alarm SetpointScan Mode Model CYD208 Only Setting Dwell Times Model CYD208 OnlySoftcal Compensations Latched And Unlatched AlarmsAlarm Fix Function Model CYD208 Only SoftCal Calibration Procedure Erasing SoftCal Compensations Verifying SoftCal OperationOperation Serial Interface Chapter Remote OperationSerial Interface Connections J2 Serial I/O Serial I/O RJ-11 Connector Pin DefinitionsSample Basic Program Serial Interface OperationReturned Serial Interface Command SummarySample Quick Basic 4.0 Program InputInput R Returned Nothing Input F0x Returned NothingInput Hxxx.x Returned Nothing Input Lxxx.x Returned NothingEnd Scanning Model CYD208 Only Switch ID and Alarm DataHigh or Low Parameter H = high alarm, L = low alarm Input YCx Returned NothingScan Status Model CYD208 Only Sign,sensor reading,units,alarm status CrlfCurrent channel,sign,sensor reading,units, alarm statusCRLF This Page Intentionally Left Blank Remote Operation Model CYD201 Rear Panel Connections Chapter ServiceModel CYD208 Rear Panel Connections Model CYD208 Rear Panel ConnectionsGeneral Maintenance Error Code TroubleshootingLine Voltage Configuration Fuse ReplacementModel CYD201 Model CYD208 Current Source CalibrationRecalibration Serial Interface Cable and Adapters 2 A/D Converter CalibrationModel CYD200-B RJ-11 to DE-9 Adapter Wiring Details Page Accessories Model Description of Accessory Chapter Options and AccessoriesDIN Model Description of AccessoryModel CYD201/CYD208 Wires Lsci P/N Description of Cable Series CY-7 Model CYD201/CYD208 Sensors Sensor no Description of SensorSeries DT-420 Series DT-450Options and Accessories A1.0 General Appendix a Curve TablesTable A-2. Curve 1 DT-500DI-8A Voltage-Temp. Characteristics Table A-3. Curve 2 DT-500DRC-D Voltage-Temp. Characteristics 6591 18.0 Table A-5. Curve 4 CTI Diode Voltage-Temp. Characteristics Table A-6. Curve 5 DT-500DI-8C Voltage-Temp. Characteristics Table A-7. Curve 6 CY-7 Voltage-Temp. Characteristics 305.0 50689 Page Page Flow TemperaturePRESSURE/STRAIN