User ManualTable of ContentsINTRODUCTION1General1Model CYD201/CYD208 System Description1Handling Liquid Helium and Liquid Nitrogen1Handling Cryogenic Storage Dewars1LHe and LN2 Safety Precautions1Recommended First Aid1Electrostatic Discharge1Identifying ESDS Components1Handling ESDS Components1Safety Summary1Safety Symbols1INSTALLATION2General2Inspection and Unpacking2Repackaging For Shipment2Power and Ground Requirements2Sensor Installation Recommendations2Two-Lead Vs. Four-Lead Measurements2Connecting Leads to the Sensor2Sensor Mounting2Measurement Errors Due to AC Noise2Sensor Input Connections2Sensor Curve Definition2Rack Mounting2Initial Power Up Sequence2Power Up Errors2OPERATION3General3Units Key3Channel Key (Model CYD208 Only)3Scan Mode3Setting Dwell Times3Alarm Operation3Alarm Setpoint3Latched and Unlatched Alarms3Alarm Fix Function (Model CYD208 Only)3SoftCal™ Compensations3SoftCal™ Calibration Procedure3Verifying SoftCal™ Operation3Erasing SoftCal™ Compensations3REMOTE OPERATION4General4Serial Interface4Serial Interface Connections4Serial Interface Operation4Sample Basic Program4Sample QuickBasic 4.0 Program4Serial Interface Command Summary4SERVICE5General5Model CYD201 Rear Panel Connections5Model CYD208 Rear Panel Connections5Error Code Troubleshooting5General Maintenance5Fuse Replacement5Line Voltage Configuration5Recalibration5Current Source Calibration5A/D Converter Calibration5Serial Interface Cable and Adapters5OPTIONS AND ACCESSORIES6General6Accessories6Wires6Sensors6Typical Cryogenic Dewar1Model CYD201 Sensor Connector J1 Details2Model CYD208 Sensor Connector J1 Details2Model 2090 Rack Mounting2Model CYD201 Front Panel3Model CYD208 Front Panel3Serial I/O (RJ-11) Connector Pin Definitions4Serial Interface Connections4Model CYD201 Rear Panel Connections5Model CYD208 Rear Panel Connections5Line Voltage Jumper Configuration5Calibration Connections5Model CYD200-J10 RJ-11 Cable Assembly Wiring Details5Model CYD200-D RJ-11 to DB-25 Adapter Wiring Details5Model CYD200-B RJ-11 to DE-9 Adapter Wiring Details5Serial Interface Adapters6Model CYD201/CYD208 Specifications1Line Voltage and Fuse Rating Selection2Model CYD201/CYD208 Temperature Curves2Serial Interface Specifications4Size: 262 KBPages: 60Language: EnglishOpen manual