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M-3549/1299(HH303)
1/23/00
Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGA...Of Course!
TEMPERATURE
Thermocouple, RTD & Thermistor Probes,
Connectors, Panels & Assemblies
Wire: Thermocouple, RTD & Thermistor
Calibrators & Ice Point References
Recorders, Controllers & Process Monitors
Infrared Pyrometers
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Instrumentation & Accessories
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Rotameters, Gas Mass Flowmeters & Flow
Computers
Air Velocity Indicators
Turbine/Paddlewheel Systems
Totalizers & Batch Controllers
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pH Electrodes, Testers & Accessories
Benchtop/Laboratory Meters
Controllers, Calibrators, Simulators & Pumps
Industrial pH & Conductivity Equipment
DATA ACQUISITION
Data Acquisition & Engineering Software
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HEATERS
Heating Cable
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ENVIRONMENTAL
MONITORING AND CONTROL
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pH, Conductivity & Dissolved Oxygen Instruments
7:55 PM
Page 2
M3549/1299
User' s Guide
omega.com
www.omega.com
e-mail: info@omega.com
OMEGANETTE
HH303
Type K J Thermometer
TM
®
®
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Summary of Contents for Omega Engineering HH303
- Page 1 M-3549/1299(HH303) 1/23/00 7:55 PM Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! TEMPERATURE Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors...
- Page 2 M-3549/1299(HH303) 1/23/00 7:55 PM omega.com ® OMEGAnet ® On-Line Service Internet e-mail www.omega.com info@omega.com Servicing North America: USA: One Omega Drive, Box 4047 ISO 9001 Certified Stamford CT 06907-0047 Tel: (203) 359-1660 FAX: (203) 359-7700 e-mail: info@omega.com Canada: 976 Bergar...
- Page 3 Type K J Thermometer C O N T E N T S Introduction II.
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Page 4: Specifications
Type K J Thermometer I. Introduction: This instrument is a digital thermometer for use with any K-type and J-type thermocouple as temperature sensor. Temperature indication follows National Bureau of Standards and IEC584 temperature/voltage table for K-type and J-type thermocouples. II. Specifications:... - Page 5 Type K J Thermometer Temperature Coefficient: For ambient temperatures from 0°C ~ 18°C and 28°C ~ 50°C, for each °C ambient below 18°C or above 28°C add the following tolerance into the accuracy spec. 0.01% of reading + 0.03°C ( 0.01% of reading + 0.06°F )
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Page 6: Symbol Definition And Button Location
Type K J Thermometer III. Symbol Definition and Button Location: Main Display Second Display - - - - :This indicates that the minus temperature is sensed. :Centigrade and Fahrenheit indication. :Thermocouple Type Indication :This indicates that the display data is being hold. - Page 7 Type K J Thermometer ...
- Page 8 Type K J Thermometer IV. Operation Instructions : 4.1 Power-Up Press the key to turn the thermometer On or OFF. I I I I 4.2 Connection the Thermocouples For measurement, plug the thermocouple into the input connectors.
- Page 9 Type K J Thermometer 4.8 MAX/MIN/AVG Operation for Main Display: When one press the button the meter will enter the MAX/MIN mode. Under this mode the maximum value, minimum value and average value of latest 4 data is kept in the memory simultaneously and updated with every new data.
- Page 10 Type K J Thermometer 4.11 Digital Output: The Digital Output is a 9600bps N 81 serial interface. The RX is a 5V normal high input port. The TX is a 5V normal high output port. The command of Digital Output is list below.
- Page 11 Type K J Thermometer Command R: Equivalent to one pushing on the REL button and no message is returned. Command C: Equivalent to one pushing on the / button and no message is returned.
- Page 12 Type K J Thermometer represent ###.#...
- Page 13 Type K J Thermometer bit3:1→sub window value is OL , 0→not OL bit4:1→sub window value is minus, 0→sub window value is plus. bit5:1→6 byte and 7 byte represent #### 0→6 byte and 7 represent ###.# bit7 bit6: 00→Main window is T1-T2,sub window is T1 01→Main window is T1-T2, sub window is T2...
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Page 14: Calibration Procedure
1000 count), Now , press REL button again to finish calibrating . K,J Thermometer (HH303) calibrate procedure Hold REL+AVG+ T1-T2 then press power , release all button ,press HOLD +C/F in 5 seconds, LCD will show “CAL 1”.