M789-038A 15 June 1999
OMEGA Model CYD201/CYD208 User’s Manual WARRANTY OMEGA warrants this unit to be free of defects in materials and workmanship and to give satisfactory service for a period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that our Customers receive maximum coverage on each product. If the unit should malfunction, it must be returned to the factory for evaluation.
OMEGA Model CYD201/CYD208 User’s Manual TABLE OF CONTENTS Chapter/Paragraph Title Page 1 INTRODUCTION ..........................................................................1-1 1.0 General.......................................................................1-1 1.1 Model CYD201/CYD208 System Description.............1-1 1.2 Handling Liquid Helium and Liquid Nitrogen ..............1-3 1.2.1 Handling Cryogenic Storage Dewars ......................1-3 1.2.2 LHe and LN2 Safety Precautions ..............
OMEGA Model CYD201/CYD208 User’s Manual TABLE OF CONTENTS (Continued) Chapter/Paragraph 4 General.......................................................................4-1 Serial Interface ...........................................................4-1 Serial Interface Connections...................................4-1 Serial Interface Operation .......................................4-3 Sample Basic Program ...........................................4-3 Sample QuickBasic 4.0 Program ......................
OMEGA Model CYD201/CYD208 User’s Manual LIST OF ILLUSTRATIONS Figure No. Title Page 1-1 Typical Cryogenic Dewar ..........................................................1-3 2-1 2-2 2-3 Model CYD201 Sensor Connector J1 Details...........................2-6 Model CYD208 Sensor Connector J1 Details...........................2-6 Model 2090 Rack Mounting ......................................................2-8 3-1 3-2 Model CYD201 Front Panel ......................................................
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OMEGA Model CYD201/CYD208 User’s Manual CHAPTER 1 INTRODUCTION 1.0 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). Due to the OMEGA commitment to continuous product improvement, modifications may occur to the Model CYD201/CYD208 software with time.
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
OMEGA Model CYD201/CYD208 User’s Manual 1.2 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 (LN2) 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 LN2. 1.2.
OMEGA Model CYD201/CYD208 User’s Manual When transferring LHe and LN2, 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. Always wear special cryogenic gloves (Tempshield Cryo-Gloves® or equivalent) when handling anything that is, or may have been, in contact with the liquid or cold gas, or with cold pipes or equipment.
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. At a minimum, observe these precautions: 1.
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. Refer component replacement and internal adjustments to qualified maintenance personnel. Do not replace components with power cable connected.
OMEGA Model CYD201/CYD208 User’s Manual CHAPTER 2 INSTALLATION 2.0 GENERAL This chapter covers Inspection and Unpacking (Paragraph 2.1), Repackaging for Shipment (Paragraph 2.2), Sensor Installation Recommendations (Paragraph 2.3) Power and Ground Requirements (Paragraph 2.4), Sensor Curve Definitions (Paragraph 2.5), and Rack Mounting (Paragraph 2.6). 2.1 INSPECTION AND UNPACKING Remove packing list and verify receipt of all equipment.
OMEGA Model CYD201/CYD208 User’s Manual 2.3 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. See Table 2-1 for fuse rating. WARNING: To prevent electrical fire or shock hazards, do not expose this instrument to rain or excess moisture.
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.
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. Eliminate such temperature errors with proper selection and installation of connecting leads.
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. CAUTION: OMEGA will not warranty replace any device damaged by user-designed clamps or solder mounting. ® For semi-permanent mountings, use Stycast epoxy instead of Apiezon N Grease.
OMEGA Model CYD201/CYD208 User’s Manual 2.5 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. J1 INPUT 1 4 1 3 2 Terminal 4 1 2 3 CASE Description + Current Out – Current Out – Voltage Sense + Voltage Sense Shield Figure 2-1. Model CYD201 Sensor Connector J1 Details The Model CYD208 has a 36-pin “Miniature-D” style connector designated J1 INPUTS for inputs 1 thru 8.
OMEGA Model CYD201/CYD208 User’s Manual 2.6 SENSOR CURVE DEFINITION To display accurate temperature, select a response curve that matches the installed sensor. There are seven standard curves stored within the Model CYD201/CYD208 numbered 0 through 6 (see Appendix A). Different curves may be assigned to each channel of the Model CYD208. Find the unit factory curve configuration inside the front cover of this manual.
0.265 (6.73) 0.215 (5.46) A B A Hole Sizes: A = 0.189 (0.480) Diameter - 4 Places B = 0.169 (0.429) Diameter - 2 Places Model CYD201 or CYD208 Front Panel 1.25 (31.75) 1.50 (38.10) 2.50 (63.5) OMEGA Model CYD201/CYD208 User’s Manual A B 1.44 (35.58) CL A 1.44 (35.58) 4.18 (106.17) Figure 2-3.
OMEGA Model CYD201/CYD208 User’s Manual 2.8 INITIAL POWER UP SEQUENCE The test sequence below occurs at power up. 1. All display segments light. 2. The unit displays “-201-” or “-208-”. 3. The instrument begins normal operation. Units currently selected flash. Model CYD208s also indicate the current channel selected. 2.9 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.
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OMEGA Model CYD201/CYD208 User’s Manual CHAPTER 3 OPERATION 3.0 GENERAL This chapter covers the Units Key (Paragraph 3.1), the Channel key (Paragraph 3.2), Scan Mode (Paragraph 3.3), Setting Dwell Times (Paragraph 3.4), Alarm Operation (Paragraph 3.5), SoftCal™ Compensations (Paragraph 3.6), Calibration (Paragraph 3.7), Verifying SoftCal™ Operation (Paragraph 3.8), and Erasing SoftCal™ Compensations (Paragraph 3.9). K °C UNITS V °F ON OFF CYD201 THERMOMETER Figure 3-1.
OMEGA Model CYD201/CYD208 User’s Manual 3.2 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. 3.3 SCAN MODE (Model CYD208 Only) The thermometer can scan 8 channels or monitor 1 channel. To enable scan mode, press CHANNEL for 1 to 2 seconds to toggle scan mode On or Off.
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. 3. Release UNITS when the desired setpoint displays.
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 +0.25 K +0.15 K 2 K to <30 K 30 K to <60 K 60 K to <345 K +0.25 K +1.0 K 345 K to <375 K 375 K to 475 K * These values generally apply to all silicon diode sensors. Only two-point SoftCal™ calibrations appropriate for CY-7 series Band 11, 11A sensors.
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™ is set for above 28 K. 3.6.3 Erasing SoftCal™ Compensations When SoftCal™ compensations are erased, the thermometer returns to normal operation. 1. Move the SET switch to position 1. 2.
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OMEGA Model CYD201/CYD208 User’s Manual CHAPTER 4 REMOTE OPERATION 4.0 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). 4.1 SERIAL INTERFACE The Model CYD201/CYD208 has a serial interface for RS-232C communications with a host computer.
OMEGA Model CYD201/CYD208 User’s Manual J2 SERIAL I/O PIN 1 2 3 4 5 6 1 2 3 4 5 6 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.
OMEGA Model CYD201/CYD208 User’s Manual 4.1.2 Serial Interface Operation Remotely control all thermometer functions, except SoftCal™ compensations from a computer with communications software and modem. Located on the rear panel is a RJ-11 modular socket designated J2 SERIAL I/O for host computer connection.
OMEGA Model CYD201/CYD208 User’s Manual 4.1.4 Sample Quick Basic 4.
OMEGA Model CYD201/CYD208 User’s Manual F0 Sets Sensor Units for Temperature Display. Input: F0x Returned: Nothing Remarks: Sets sensor units for the temperature display, where x = C (Celsius), F (Fahrenheit), K (kelvin), or V (volts). H Select High Alarm Setpoint Value. Input: Hxxx.x Returned: Nothing Remarks: Sets high alarm setpoint, where xxx.x = temperature setpoint in units specified by F0 command. If the instrument is set for volts, the alarm defaults to kelvin.
OMEGA Model CYD201/CYD208 User’s Manual YC Channel Scanner Channel (Model CYD208 Only). Input: YCx Returned: Nothing Remarks: Asynchronously selects a scanner channel for readout independent of scan feature, where x = channel 1 - 8. YH End Scanning (Model CYD208 Only). Input: YH Returned: Nothing Remarks: Halts input scan at current input channel. Place scanner on hold when sending any other commands to scanner or unpredictable results may occur. YS Begin Scanning (Model CYD208 Only).
OMEGA Model CYD201/CYD208 User’s Manual WS Input: Sample Sensor Reading and Alarm Status. WS Returned: For a Model CYD201, returns: [sign],[sensor reading],[units],[alarm status] (CR)(LF) For a Model CYD208, returns: [current channel],[sign],[sensor reading],[units], [alarm status](CR)(LF) Remarks: Returns the sample sensor reading and alarm status, where A = active and I = inactive. WY Input: Scan Status (Model CYD208 Only).
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OMEGA Model CYD201/CYD208 User’s Manual CHAPTER 5 SERVICE 5.0 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 Serial Interface Cable and Adapters (Paragraph 5.8). 5.
OMEGA Model CYD201/CYD208 User’s Manual 5.2 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. J2 SERIAL I/O: RJ-11 jack for serial remote communications to a host computer.
OMEGA Model CYD201/CYD208 User’s Manual 5.3 ERROR CODE TROUBLESHOOTING 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. Er02 indicates a soft error in the instrument memory. To correct this error, use the following procedure. 1. Power up the unit and allow it to display Er02. 2.
OMEGA Model CYD201/CYD208 User’s Manual 5.5 FUSE REPLACEMENT WARNING: To prevent shock hazard, turn off instrument and disconnect it from AC line power and all test equipment before replacing fuse. 1. Turn POWER switch Off and disconnect power cord from unit. Disconnect all test equipment from unit. 2. Remove all screws from rear panel. Gently pull away rear panel and remove enclosure cover by sliding it to the back. 3. Remove fuse with a fuse puller.
OMEGA Model CYD201/CYD208 User’s Manual 5.7 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; and 25 k and 125 k precision resistors with ±0.01% tolerance or better.
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. 4. Wait 10 seconds for resistor voltage to settle. 5. Press CAL ENABLE, then within 2 seconds press UNITS. The display window shows "-CAL-" for approximately 15 seconds.
OMEGA Model CYD201/CYD208 User’s Manual 5 4 9 3 2 8 7 1 6 DE-9 CONNECTOR = NOT USED RxD Gnd TxD 1 2 3 4 5 6 RJ-11 RECEPTACLE Figure 5-7.
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OMEGA Model CYD201/CYD208 User’s Manual CHAPTER 6 OPTIONS AND ACCESSORIES 6.0 GENERAL This chapter lists options, accessories, sensors, wires, and special equipment available for the Model CYD201/CYD208. 6.1 ACCESSORIES MODEL DESCRIPTION OF ACCESSORY 201-MC 4-pin Mating Connector for Model CYD201 and Model 2084. 208-MC 36-pin “D” Style Connector for Model CYD208. CYD200-J10 RJ-11 to RJ-11 Phone Cord, 10 feet (3 meters). See Figure 6-1. CYD200-D RJ-11 to DB-25 Adapter.
OMEGA Model CYD201/CYD208 User’s Manual ACCESSORIES (continued) MODEL DESCRIPTION OF ACCESSORY 2083-1 Sensor Probe. 12-foot (3.7 m) cable with CY-7-SD-13 sensor in CY mounting adapter, stripped ends. Temperature limit: 325 K (52 °C). Diode sensor epoxied (Stycast) into center of 0.564 inch (1.43 cm) diameter by 0.20 inch (5 mm) thick copper disk. 30 AWG copper leads anchored to disk. Mass (excluding leads): 4.3 grams. 2083-2 Sensor Probe. 12-foot (3.
OMEGA Model CYD201/CYD208 User’s Manual 6.3 MODEL CYD201/CYD208 SENSORS SENSOR NO. DESCRIPTION OF SENSOR Series DT-420 The smallest silicon diode Temperature Sensor available. Installs on flat surfaces. Same silicon chip as Series CY-7 and DT-471. Series DT-450 Silicon Diode Miniature Temperature Sensor. Same silicon chip as CY-7 designed to install in recesses as small as 1.6 mm dia. by 3.2 mm deep. Series CY-7 Silicon Diode Temperature Sensor.
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OMEGA Model CYD201/CYD208 User’s Manual APPENDIX A 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). Table A-1. Curve 0: DT-500DI-8B Voltage-Temp. Characteristics BP # 29 28 27 26 25 24 23 22 21 20 Temp. (K) PROM Voltage 4.
OMEGA Model CYD201/CYD208 User’s Manual Table A-2. Curve 1: DT-500DI-8A Voltage-Temp. Characteristics BP # 30 29 28 27 26 25 24 23 22 21 20 19 18 Temp. (K) PROM Voltage 4.0 4.2 4.4 4.6 4.8 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0 26.0 27.0 28.0 2.46386 2.44821 2.43188 2.41500 2.39781 2.37578 2.33823 2.29906 2.26440 2.23248 2.20480 2.17716 2.14994 2.12245 2.10065 2.07844 2.03712 1.99736 1.95641 1.91202 1.85236 1.79177 1.
OMEGA Model CYD201/CYD208 User’s Manual Table A-3. Curve 2: DT-500DRC-D Voltage-Temp. Characteristics BP # 30 29 28 27 26 25 Temp. (K) PROM Voltage 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 11.5 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 2.5984 2.5958 2.5932 2.5906 2.5880 2.5854 2.5828 2.5735 2.5643 2.5551 2.5458 2.5366 2.5226 2.5086 2.4946 2.4807 2.4667 2.4527 2.4387 2.4247 2.4108 2.3968 2.3618 2.3269 2.2919 2.
OMEGA Model CYD201/CYD208 User’s Manual Table A-4. Curve 3: DT-500DRC-E1 Voltage-Temp. Characteristics BP # 30 29 28 27 26 25 Temp. (K) PROM Voltage 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 2.6591 2.6567 2.6542 2.6518 2.6494 2.6470 2.6446 2.6355 2.6265 2.6175 2.6084 2.5994 2.5868 2.5742 2.5616 2.5490 2.5364 2.5221 2.5077 2.4934 2.4791 2.4648 2.4290 2.3932 2.3574 2.3216 2.
OMEGA Model CYD201/CYD208 User’s Manual Table A-5. Curve 4: CTI Diode Voltage-Temp. Characteristics BP # 29 28 27 26 25 24 23 22 Temp. (K) PROM Voltage 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0 26.0 27.0 28.0 29.0 30.0 32.0 34.0 36.0 38.0 40.0 45.0 50.0 1.4000 1.3850 1.3656 1.3400 1.3161 1.2750 1.2350 1.1910 1.1500 1.1290 1.1162 1.1135 1.1109 1.1084 1.1058 1.1033 1.1007 1.0981 1.0955 1.0929 1.0903 1.0851 1.0799 1.0747 1.0693 1.0640 1.0505 1.
OMEGA Model CYD201/CYD208 User’s Manual Table A-6. Curve 5: DT-500DI-8C Voltage-Temp. Characteristics BP # 29 28 27 26 25 24 Temp. (K) PROM Voltage 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6 5.8 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 21.0 22.0 23.0 2.6187 2.6074 2.5956 2.5834 2.5709 2.5580 2.5484 2.5312 2.5173 2.5033 2.4890 2.4524 2.4151 2.3773 2.3394 2.2976 2.2643 2.2277 2.1919 2.1566 2.1221 2.0881 2.0545 2.
OMEGA Model CYD201/CYD208 User’s Manual Table A-7. Curve 6: CY-7 Voltage-Temp. Characteristics BP # 29 28 27 26 Temp. (K) PROM Voltage 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6 5.8 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 1.69808 1.69674 1.69521 1.69355 1.69177 1.68987 1.68912 1.68574 1.68352 1.68121 1.67880 1.67632 1.67376 1.67114 1.66845 1.66571 1.66292 1.66009 1.65721 1.65430 1.65134 1.
OMEGA Model CYD201/CYD208 User’s Manual Table A-7. Curve 6: CY-7 Voltage-Temp. Characteristics (Continued) BP # 5 Temp. (K) PROM Voltage 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 0.50689 0.49484 0.48278 0.47069 0.45858 0.44647 0.43435 0.42238 0.41003 0.39783 0.38561 0.37337 BP # 4 Temp. (K) PROM Voltage 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 0.36110 0.34881 0.33650 0.32416 0.31180 0.29958 0.28700 0.27456 0.26211 0.24963 0.23714 0.
NOTES
NOTES
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 FLOW Rotameters Flowmeter Systems Air Velocity Indicators Turbine/Paddlewheel Systems Vortex Meters and
