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7

8

9

Sec. Minu. Selecting the Time scale

Reading the third displayed (Time) in either second or minute. When the
thermometer turned on, it is set to second. To change the Time scale, press
sec. Minu. key.
Maximum Time reading is 100 hours. If 100 hours is exceeded, reset Time
to zero and restart.

SET mode (Relative value set, Time set and Hi/Lo Limits value set)

1. Press SET key to enter Relative valuse SET mode (Press ENTER key can

escape relative valuse set mode), REL set mode. = = = =.= is displayed in
main display.

Relative value is entered via overlay numbers, then press overlay ENTER key,

stored the relative value, enter Time set mode.

2. Time set mode, (Press ENTER key can escape Time set mode)

=.=  = = : = = is displayed in second and third display. Time (hours, minutes,
seconds) value is entered via overlay numbers, then press overlay ENTER
key. Time start from set time value, enter Hi/Lo Limits value set mode.

3. Hi Limit value set mode, 

 is displayed (Press ENTER key can escape Hi

Limit value set mode), = = = =.= is displayed in main display, Hi Limit value
is entered via overlay numbers, then press overlay ENTER key, stored the
Hi Limit value, enter Lo Limit value set mode (Press  ENTER key can escape
Lo Limit value set mode). = = = =.= is displayed in main display, Lo Limit
value is entered via overlay numbers, then press overlay ENTER key,
stored the  Lo Limit value and exit SET mode.

Summary of Contents for 502

Page 1: ...HH502 Digital Thermometer OMEGA MODEL 502 ...

Page 2: ...ll Free in Germany 0800 82 66342 e mail nl omega com e mail germany omega com Czech Republic United Kingdom ISO 9002 Certified ul Rude armady 1868 733 01 Karvina One Omega Drive Hranice Czech Repubic Riverbend Technology Centre Northbank Irlam Tel 420 69 6311627 FAX 420 69 6311114 Manchester M44 5EX England e mail czech omega com Tel 44 161 777 6611 FAX 44 161 777 6622 France 9 rue Denis Papin 781...

Page 3: ...rmocouple leads To prolong lead life avoid sharp bends in the leads especially near the connector INTRODUCTION This instrument is a 4 digit compact sized portable digital thermometer designed to use external K type and J type thermocouples as temperature sensor TemperatureindicationfollowsReferenceTemperature VoltageTables N I S T Monograph 175 Revised to ITS 90 for K type and J type thermo couple...

Page 4: ... 0 05 rdg 0 3 C 50 C to 1370 C 0 05 rdg 0 7 C 50 C to 200 C 0 05 rdg 0 6 F 58 F to 2498 F 0 05 rdg 1 4 F 58 F to 328 F TemperatureCoefficient 0 1timestheapplicableaccuracyspecificationper C from 0 C to 18 C and 28 C to 50 C 32 F to 64 F and 82 F to 122 F Input Protection 24V dc or 24V ac rms maximum input voltage on any combination of input pins Maximum Differential Common Mode Voltage Maximum Vol...

Page 5: ...0 R H GENERAL Display 4 digit liquid crystal display LCD with maximum reading of 19999 Overload is display Battery Standard 9V battery Battery Life 100 hours typical Auto power off The meter key switch inactive for more than 30 minutes press power key to resume operation Dimensions 192mm H x 91mm W x 52 5mm D Weight 365g ...

Page 6: ...n the thermometer was last turned off To change the temperature scale press the C F key HOLD Mode only Main display Pressing the HOLD key to enter the Data Hold mode the HOLD annun ciator is displayed When HOLD mode is selected the thermometer held the present readings and stops all further measurements Pressing the HOLD key again to cancel HOLD mode causing thermometer to resume taking measuremen...

Page 7: ... selected T1 When the thermometer is turned on it is set to the type selected that was in use when the thermometer was last turned off MIN MAX with Time record Mode only Main display Press MIN MAX key to enter the MIN MAX Recording mode displays the Maximum reading with time Minimum reading with time and Average reading stored in record mode In the this mode the automatic power off feature is disa...

Page 8: ... REL Relative mode only Main display Pressing REL key to enter the Relative mode zero the display and store the displayed Reading as a reference value and annunciator REL is displayed Press REL key again to exit the relative mode The relative value can also be entered by the user See SET mode later in this manual When the desired Relative value has been entered press REL key to enter the Relative ...

Page 9: ...rlay ENTER key stored the relative value enter Time set mode 2 Time set mode Press ENTER key can escape Time set mode is displayed in second and third display Time hours minutes seconds value is entered via overlay numbers then press overlay ENTER key Time start from set time value enter Hi Lo Limits value set mode 3 Hi Limit value set mode is displayed Press ENTER key can escape Hi Limit value se...

Page 10: ...lternate of thermocouple by second display K J key switch K J T2 Input thermocouple type select second display The K J key switch the T2 input selects the K type or J type thermocouple as input when second display input selected T2 When the thermometer is turned on it is set to the type selected that was in use when the thermometer was last turned off Hi Lo Limits mode only Main display Press Hi L...

Page 11: ...the thermometer before removing the cover Battery Replacement Power is supplied by a 9 volt transistor battery The appears on the LCD display when replacement is needed To replace the battery remove the two screws from the back of the meter and lift off the battery cover Remove the battery from battery contacts ...

Page 12: ...t The class of calibrator had better 10 times greater than the measured meter 1 Set the jumper position on J1 position 2 The input selection change to T1 position then input DCV 60mV after the display is stabilized and press ENTER key 3 Input 0 F after the display is stabilized and press ENTER key to complete calibration 4 After adjustment set the jumper back to J3 position ...

Page 13: ...ity or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on...

Page 14: ...el Systems þ Totalizers Batch Controllers pH CONDUCTIVITY þ pH Electrodes Testers Accessories þ Benchtop Laboratory Meters þ Controllers Calibrators Simulators Pumps þ Industrial pH Conductivity Equipment DATA ACQUISITION þ Data Acquisition Engineering Software þ Communications Based Acquisition Systems þ Plug in Cards for Apple IBM Compatibles þ Datalogging Systems þ Recorders Printers Plotters H...

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