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Omega Engineering CYD201 Operator's Manual

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M789-038A
15 June 1999

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Summary of Contents for Omega Engineering CYD201

  • Page 1            M789-038A 15 June 1999...
  • Page 2 INCIDENTAL, OR SPECIAL DAMAGES. THE BUYER'S SOLE REMEDY FOR ANY BREACH OF THIS AGREEMENT BY OMEGA ENGINEERING, INC., OR ANY BREACH OF ANY WARRANTY BY OMEGA ENGINEERING, INC., SHALL NOT EXCEED THE PURCHASE PRICE PAID BY THE PURCHASE TO OMEGA ENGINEERING, INC. FOR THE UNIT OR UNITS OR EQUIPMENT DIRECTLY AFFECTED BY SUCH BREACH.

  • Page 3: Table Of Contents

    OMEGA Model CYD201/CYD208 User’s Manual TABLE OF CONTENTS Chapter/Paragraph Title Page INTRODUCTION ................1-1 General...............1-1 Model CYD201/CYD208 System Description.....1-1 Handling Liquid Helium and Liquid Nitrogen ....1-3 1.2.1 Handling Cryogenic Storage Dewars ......1-3 1.2.2 LHe and LN Safety Precautions ......1-3 1.2.3 Recommended First Aid .........1-4 Electrostatic Discharge..........1-4...
  • Page 4 Sample Basic Program ...........4-3 4.1.4 Sample QuickBasic 4.0 Program ......4-4 Serial Interface Command Summary......4-4 SERVICE..................5-1 General...............5-1 Model CYD201 Rear Panel Connections ....5-1 Model CYD208 Rear Panel Connections ....5-2 Error Code Troubleshooting ........5-3 General Maintenance ..........5-3 Fuse Replacement .............5-4 Line Voltage Configuration .........5-4 Recalibration...............5-5...
  • Page 5 LIST OF ILLUSTRATIONS Figure No. Title Page Typical Cryogenic Dewar ............1-3 Model CYD201 Sensor Connector J1 Details......2-6 Model CYD208 Sensor Connector J1 Details......2-6 Model 2090 Rack Mounting ............2-8 Model CYD201 Front Panel ............3-1 Model CYD208 Front Panel ............3-1 Serial I/O (RJ-11) Connector Pin Definitions ......4-2 Serial Interface Connections.............4-2...
  • Page 6 OMEGA Model CYD201/CYD208 User’s Manual This Page Intentionally Left Blank Table of Contents...

  • Page 7: Introduction

    OMEGA Model CYD201/CYD208 User’s Manual CHAPTER 1 INTRODUCTION GENERAL This chapter covers a general description of the Model CYD201/CYD208 (Paragraph 1.1), Handling Liquid Helium and Liquid Nitrogen (Paragraph 1.2), Electrostatic Discharge (Paragraph 1.3), Safety Summary (Paragraph 1.4), and Safety Symbols (Paragraph 1.5).
  • Page 8 OMEGA Model CYD201/CYD208 User’s Manual Table 1-1. Model CYD201/CYD208 Specifications Display: Four-digit LED display Resolution: 0.1 for values > 100 or < –100 0.01 for values between -100<T<100 Temperature Range: 1.4 K to 475 K without probe 23 K to 473 K with probe System Accuracy: To within ±0.1K from 177 K to 313 K.

  • Page 9: Handling Liquid Helium And Liquid Nitrogen

    Helium and Nitrogen are colorless, odorless, and tasteless gases. They liquefy when properly cooled. Liquid helium (LHe) and liquid nitrogen (LN may be used in conjunction with the Model CYD201 or CYD208. Although not explosive, there are certain safety considerations in the handling of LHe and LN 1.2.1...

  • Page 10: Recommended First Aid

    OMEGA Model CYD201/CYD208 User’s Manual When transferring LHe and LN , protect eyes and skin from accidental contact with liquid or the cold gas issuing from it. Protect eyes with full face shield or chemical splash goggles; safety glasses (even with side shields) are inadequate.

  • Page 11: Identifying Esds Components

    OMEGA Model CYD201/CYD208 User’s Manual 1.3.1 Identifying ESDS Components Below are some industry symbols used to label components as ESDS: 1.3.2 Handling 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.

  • Page 12: Safety Symbols

    OMEGA Model CYD201/CYD208 User’s Manual Do Not Operate In An Explosive Atmosphere Do not operate the instrument in the presence of flammable gases or fumes. Operation of any electrical instrument in such an environment constitutes a definite safety hazard. Keep Away From Live Circuits Operating personnel must not remove instrument covers.

  • Page 13: Installation

    REPACKAGING FOR SHIPMENT To return the Model CYD201/CYD208, sensor, or accessories for repair or replacement, obtain a Authorized Return (AR) number from Technical Service in the United States, or from the authorized sales/service representative from which the product was purchased.

  • Page 14: Power And Ground Requirements

    OMEGA Model CYD201/CYD208 User’s Manual POWER AND GROUND REQUIREMENTS The Model CYD201/CYD208 requires a power source of 90 to 125 or 210 to 250 VAC, 50 or 60 Hz, single phase, 3 Watts. Three-prong detachable power cord for 120 VAC operation included. Connect to rear panel UL/IEC/ICEE standard plug.

  • Page 15: Two-Lead Vs Four-Lead Measurements

    OMEGA Model CYD201/CYD208 User’s Manual 3. Keep leads as short as possible. 4. Use twisted-pair wire. Use Duo-Twist™ wire (or equivalent) for two-wire, or Quad-Twist™ wire (or equivalent) for four-wire applications. 5. Thermally anchor lead wires. 2.4.1 Two-Lead Vs Four-Lead Measurements In two-lead measurement, the leads that measure sensor voltage also carry the current.

  • Page 16: Connecting Leads To The Sensor

    OMEGA Model CYD201/CYD208 User’s Manual 2.4.2 Connecting Leads To The Sensor Excessive heat flow through connecting leads to any temperature sensor may differ the temperature between the active sensing element and the sample to which the sensor mounts. This reflects as a real temperature offset between what is measured and the true sample temperature.

  • Page 17: Measurement Errors Due To Ac Noise

    OMEGA Model CYD201/CYD208 User’s Manual For temporary mounting in cold temperature applications, apply a thin layer ® of Apiezon N Grease between the sensor and sample to enhance thermal contact under slight pressure. The preferred method for mounting the CY-7-SD sensor is the OMEGA CO Adapter.

  • Page 18: Sensor Input Connections

    OMEGA Model CYD201/CYD208 User’s Manual SENSOR INPUT CONNECTIONS The Model CYD201 has one rear panel 4-pin sensor input connector designated J1 INPUT 1. The connector pins, numbered 1 thru 4, are shown below. Terminal Description J1 INPUT 1 + Current Out –...

  • Page 19: Sensor Curve Definition

    To determine current curve selection, press and hold UNITS and turn on (1) the rear panel SET switch (DIP switch 3). Release UNITS key. The CYD201 displays the curve number in the display window. The Model CYD208 displays the curve number in the display window and the channel number in the channel window.
  • Page 20 OMEGA Model CYD201/CYD208 User’s Manual 0.265 (6.73) 0.215 (5.46) Hole Sizes: A = 0.189 (0.480) Diameter - 4 Places B = 0.169 (0.429) Diameter - 2 Places Model CYD201 or CYD208 Front Panel 1.44 1.44 (35.58) (35.58) 4.18 (106.17) Figure 2-3. Model CYD208-DIN Rack Mounting...

  • Page 21: Initial Power Up Sequence

    Model CYD208s also indicate the current channel selected. POWER UP ERRORS On power up, the CYD201/CYD208 checks internal memory. If a problem exists, an error message displays on the front panel of the instrument. “Er01” indicates a hardware problem in the instrument memory. This error is not user-correctable.
  • Page 22 OMEGA Model CYD201/CYD208 User’s Manual This Page Intentionally Left Blank 2-10 Installation...

  • Page 23: Operation

    Compensations (Paragraph 3.6), Calibration (Paragraph 3.7), Verifying SoftCal™ Operation (Paragraph 3.8), and Erasing SoftCal™ Compensations (Paragraph 3.9). °C UNITS °F CYD201 THERMOMETER Figure 3-1. Model CYD201 Front Panel °C UNITS °F CHANNEL CYD208 THERMOMETER Figure 3-2. Model CYD208 Front Panel UNITS KEY UNITS selects different units of measurement.

  • Page 24: Channel Key (Model Cyd208 Only)

    OMEGA Model CYD201/CYD208 User’s Manual CHANNEL KEY (Model CYD208 Only) CHANNEL scrolls through the eight possible sensor channels. It also determines if scan mode is activated. Hold 1 to 2 seconds to toggle scan mode On or Off. A red light glows in the upper left channel display if scan mode is active.

  • Page 25: Latched And Unlatched Alarms

    OMEGA Model CYD201/CYD208 User’s Manual 2. Hold UNITS until the desired temperature displays. UNITS is a toggle; if it is released and pressed again, the temperature direction reverses. If the temperature display increases, the alarm is a high setpoint. If the temperature display decreases, the alarm is a low setpoint.

  • Page 26: Softcal™ Calibration Procedure

    OMEGA Model CYD201/CYD208 User’s Manual SoftCal™ calibrations are made at three temperature points: liquid helium (4.2 K), liquid nitrogen (about 77 K), and 305 K. Below is the accuracy* of the CY-7-SD-13 sensor: +0.5 K 2 K to <30 K +0.25 K...

  • Page 27: Verifying Softcal™ Operation

    OMEGA Model CYD201/CYD208 User’s Manual 3.6.2 Verifying SoftCal™ Operation Check the status of SoftCal™ by holding UNITS for 2-3 seconds. If SoftCal™ is not in operation, "-000-" displays. If the first digit of the display is 1, SoftCal™ is set for below 28 K. If either the second or third digit is 1, SoftCal™...
  • Page 28 OMEGA Model CYD201/CYD208 User’s Manual This Page Intentionally Left Blank Operation...

  • Page 29: Remote Operation

    OMEGA Model CYD201/CYD208 User’s Manual CHAPTER 4 REMOTE OPERATION GENERAL The Model CYD201/CYD208 Digital Thermometer Serial Interface can be used for both operation and service. This chapter covers the Serial Interface (Paragraph 4.1) and Serial Interface Commands (Paragraph 4.2). SERIAL INTERFACE The Model CYD201/CYD208 has a serial interface for RS-232C communications with a host computer.

  • Page 30: Serial I/O (Rj-11) Connector Pin Definitions

    OMEGA Model CYD201/CYD208 User’s Manual J2 SERIAL I/O DESCRIPTION RS-232C In (RxD) RS-232C In (RxD) RS-232C Ground RS-232C Ground RS-232C Out (TxD) RS-232C Out (TxD) Figure 4-1. Serial I/O (RJ-11) Connector Pin Definitions Model CYD200-B RJ-11 to DB-25 Adapter J2 SERIAL I/O...

  • Page 31: Serial Interface Operation

    CYD200-D (RJ-11 to DB-25 adapter), as well as a null modem adapter may be required to link the serial port of the host computer directly to the thermometer. When programming a Model CYD201/CYD208 from the serial interface, consider the following: •...

  • Page 32: Sample Quickbasic 4.0 Program

    OMEGA Model CYD201/CYD208 User’s Manual 4.1.4 Sample Quick Basic 4.0 Program STARTUP: OPEN “COM1:300,O,7,1,RS” FOR RANDOM AS #1 ‘open the serial port PRINT “TYPE ‘QUIT’ TO EXIT” ‘print ‘QUIT’ message RESTART: PRINT ‘print blank line INPUT “ENTER COMMAND”; A$ ‘get command to send IF A$ = “QUIT”...
  • Page 33 OMEGA Model CYD201/CYD208 User’s Manual Sets Sensor Units for Temperature Display. Input: Returned: Nothing Remarks: Sets sensor units for the temperature display, where x = C (Celsius), F (Fahrenheit), K (kelvin), or V (volts). Select High Alarm Setpoint Value. Input: Hxxx.x...
  • Page 34 Remarks: Provides the switch ID and alarm data. The switch ID parameter is 0 through 3 for the Model CYD201. It is the sum of 1 if the alarm set enable is set, plus 2 if relay latching is desired.
  • Page 35 Parameter: H = holding, S = scanning. Channel Which Caused the Alarm State Parameter = 1 through 8 or "-" if alarm is inactive. Channel dwell times are in seconds. Sending this command with a Model CYD201 returns N to signify no scanner. Remote Operation...
  • Page 36 OMEGA Model CYD201/CYD208 User’s Manual This Page Intentionally Left Blank Remote Operation...

  • Page 37: Service

    OMEGA Model CYD201/CYD208 User’s Manual CHAPTER 5 SERVICE GENERAL This chapter covers Model CYD201/CYD208 maintenance: Model CYD201 Rear Panel Connections (Paragraph 5.1), Model CYD208 Rear Panel Connections (Paragraph 5.2), Error Code Troubleshooting (Paragraph 5.3), General Maintenance (Paragraph 5.4), Fuse Replacement (Paragraph 5.5), Line Voltage Selection (Paragraph 5.6), Calibration (Paragraph 5.7), and...

  • Page 38: Model Cyd208 Rear Panel Connections

    OMEGA Model CYD201/CYD208 User’s Manual MODEL CYD208 REAR PANEL CONNECTIONS Figure 5-2. Model CYD208 Rear Panel Connections J1 INPUTS: Accepts 36-pin “D” style connector (208-MC) and multi-sensor adapters. Adapter sits on top of thermometer and accepts up to 8 temperature sensors. Adapter designed for either circular 4-pin (2084) or stripped wire (2081) sensors.

  • Page 39: Error Code Troubleshooting

    Clean the front and back panels and case with a soft cloth dampened with a mild detergent and water solution. NOTE: Do not use aromatic hydrocarbons or chlorinated solvents to clean the Model CYD201/CYD208. They may react with the silk screen printing on the back panel. Service...

  • Page 40: Fuse Replacement

    Line Voltage Configuration The rear-panel, 3-pronged line power connector permits Model CYD201/CYD208 operation at either 110 or 220 VAC. The configuration is indicated on rear panel in the Line Voltage Selection Block. Use the procedure below to change line voltage.

  • Page 41: Recalibration

    OMEGA Model CYD201/CYD208 User’s Manual RECALIBRATION OMEGA calibrates and certifies thermometers to original factory specifications for a reasonable fee. You can recalibrate the thermometer to original specifications, but OMEGA will not warrant these calibrations. Recalibration requires a digital voltmeter (DVM) with 4½ digit resolution or better;...

  • Page 42: A/D Converter Calibration

    OMEGA Model CYD201/CYD208 User’s Manual 5.7.2 A/D Converter Calibration NOTE: Current source calibration must be performed before A/D converter calibration. 1. Allow 30 minute warm-up to achieve rated specifications. 2. Perform current source calibration. 3. Configure 125 k resistor as shown in Figure 5-4. Set Model 208s to channel 1.

  • Page 43: Model Cyd200-B Rj-11 To De-9 Adapter Wiring Details

    OMEGA Model CYD201/CYD208 User’s Manual DE-9 CONNECTOR = NOT USED RJ-11 RECEPTACLE Figure 5-7. Model CYD200-B RJ-11 to DE-9 Adapter Wiring Details Service...
  • Page 44 OMEGA Model CYD201/CYD208 User’s Manual This Page Intentionally Left Blank Service...

  • Page 45: Options And Accessories

    This chapter lists options, accessories, sensors, wires, and special equipment available for the Model CYD201/CYD208. ACCESSORIES MODEL DESCRIPTION OF ACCESSORY 4-pin Mating Connector for Model CYD201 and Model 201-MC 2084. 36-pin “D” Style Connector for Model CYD208. 208-MC CYD200-J10 RJ-11 to RJ-11 Phone Cord, 10 feet (3 meters). See Figure 6-1.

  • Page 46: Wires

    Mass (excluding leads): 4.3 grams. Sensor Probe. 12-foot (3.7 m) cable with CY-7-SD-13 sensor in CY mounting adapter, with 4-pin CYD201-MC mating connector. Temperature limit: 325 K (52 °C). Diode sensor epoxied (Stycast) into center of 0.564 inch (1.43 2083-2 cm) diameter by 0.20 inch (5 mm) thick copper disk.

  • Page 47: Sensors

    OMEGA Model CYD201/CYD208 User’s Manual MODEL CYD201/CYD208 SENSORS SENSOR NO. DESCRIPTION OF SENSOR The smallest silicon diode Temperature Sensor Series DT-420 available. Installs on flat surfaces. Same silicon chip as Series CY-7 and DT-471. Silicon Diode Miniature Temperature Sensor. Same...
  • Page 48 OMEGA Model CYD201/CYD208 User’s Manual This Page Intentionally Left Blank Options and Accessories...

  • Page 49: Appendix Acurve Tables

    CURVE TABLES A1.0 GENERAL The following curve tables apply to the Model CYD201/CYD208: Curve 0 - DT-500DI-8B (Table A-1), Curve 1 - DT-500DI-8A (Table A-2), Curve 2 - DT-500DRC-D (Table A-3), Curve 3 - DT-500DRC-E1 (Table A-4), Curve 4 - CTI Curve C (Table A-5), Curve 5 - DT-500DI-8C (Table A-6), and Curve 6 - CY-7 Curve 10 (Table A-7).
  • Page 50 OMEGA Model CYD201/CYD208 User’s Manual Table A-2. Curve 1: DT-500DI-8A Voltage-Temp. Characteristics Temp. PROM Temp. PROM Temp. PROM BP # Voltage BP # Voltage BP # Voltage 2.46386 29.0 1.11741 170.0 0.72739 2.44821 30.0 1.11007 175.0 0.71308 2.43188 32.0 1.09942 180.0...
  • Page 51 OMEGA Model CYD201/CYD208 User’s Manual Table A-3. Curve 2: DT-500DRC-D Voltage-Temp. Characteristics Temp. PROM Temp. PROM Temp. PROM BP # Voltage BP # Voltage BP # Voltage 2.5984 21.0 1.3505 180.0 0.70757 2.5958 22.0 1.3006 185.0 0.69344 2.5932 23.0 1.2507 190.0...
  • Page 52 OMEGA Model CYD201/CYD208 User’s Manual Table A-4. Curve 3: DT-500DRC-E1 Voltage-Temp. Characteristics Temp. PROM Temp. PROM Temp. PROM BP # Voltage BP # Voltage BP # Voltage 2.6591 18.0 1.6527 145.0 0.8035 2.6567 19.0 1.5724 150.0 0.7896 2.6542 20.0 1.4922 155.0...
  • Page 53 OMEGA Model CYD201/CYD208 User’s Manual Table A-5. Curve 4: CTI Diode Voltage-Temp. Characteristics Temp. PROM Temp. PROM Temp. PROM BP # Voltage BP # Voltage BP # Voltage 10.0 1.4000 55.0 1.0235 190.0 0.6545 11.0 1.3850 60.0 1.0100 195.0 0.6408 12.0...
  • Page 54 OMEGA Model CYD201/CYD208 User’s Manual Table A-6. Curve 5: DT-500DI-8C Voltage-Temp. Characteristics Temp. PROM Temp. PROM Temp. PROM BP # Voltage BP # Voltage BP # Voltage 2.6187 24.0 1.2317 135.0 0.8377 2.6074 25.0 1.1900 140.0 0.8243 2.5956 26.0 1.1602 145.0...
  • Page 55 OMEGA Model CYD201/CYD208 User’s Manual Table A-7. Curve 6: CY-7 Voltage-Temp. Characteristics Temp. PROM Temp. PROM Temp. PROM BP # Voltage BP # Voltage BP # Voltage 1.69808 12.0 1.36687 70.0 1.03425 1.69674 12.5 1.35647 75.0 1.02482 1.69521 13.0 1.34530 77.4...
  • Page 56 OMEGA Model CYD201/CYD208 User’s Manual Table A-7. Curve 6: CY-7 Voltage-Temp. Characteristics (Continued) Temp. PROM Temp. PROM Temp. PROM BP # Voltage BP # Voltage BP # Voltage 305.0 0.50689 365.0 0.36110 425.0 0.21212 310.0 0.49484 370.0 0.34881 430.0 0.19961 315.0...
  • Page 57 NOTES...
  • Page 58 NOTES...
  • Page 59 TEMPERATURE Thermocouple, RTD & Thermistor Probes & Assemblies Connector Systems and Panels Wire: Thermocouple, RTD, and Thermistor Calibrators and Ice Point References Recorders, Controllers, and Process Monitors Data Acquisition Modules and Data Loggers Computer Sensor Interface PRESSURE/STRAIN Transducers Strain Gauges Load Cells Pressure Gauges Instrumentation...

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