Omega-speaker-systems HH-23A User Manual

http://www.omega.come-mail: [email protected]®User’s GuideHH-21A, HH-22A and HH-23AHandheld Microprocessor DigitalThermometers

8BATTERY INSTALLATION/REPLACEMENTA 9V battery is supplied with the instrument but not installed. Read the fol-lowing installation instructions before

9Figure 2. Display-Keypad Formats for Models HH-21A & HH-23AMADE IN THE U.S.A.TYPE K TC NiCr-NiAlTYPE J TC Fe-CuNiTYPE T TC Cu-CuNiMADE IN THE U.

10MEMORY BACKUPDuring battery replacement, the contents of user-programmed memory(data, operating modes, etc.) can be saved. Prior to removing

11Display reads (1) No thermocouple or a damaged ther-mocouple is plugged into the selectedinput.NOTE: When viewing T1-T2, theremust be a t

122. Record AnnunciatorA flashing record symbol adjacent to a corresponding input selectionannunciator indicates that this channel is being r

1310. HOLD Hold AnnunciatorThis symbol will indicate that the instrument display is on hold.11. SCAN Scan AnnunciatorThis annunciator will be displa

14The DISPLAY RESOLUTION key selects whether the tempera-ture readings will be displayed in high resolution (0.1°C or °F) orlow resolution (1°C or

15NOTE: The thermometer will display “OPEN” onany selected channel that does not have athermocouple plugged in or if the thermo-couple is

16With the thermometer in either the T1, T2, or T1-T2 mode, corre-sponding MIN/MAX data can be viewed. To view MIN/MAX data,first select T1, T2, or T1

17Recording in one or more of the three measurement modes T1,T2, and T1-T2 can be stopped with this key. Before pressing CLRthis key, select the appro

Servicing North America:USA: One Omega Drive, Box 4047ISO 9001 Certified Stamford, CT 06907-0047Tel: (203) 359-1660 FAX: (203) 359-7700e-mail: info@om

18SERVICE INFORMATIONWARNINGAll service information is intended for qualified electronicmaintenance personnel only.1. CALIBRATION PROCEDURETest Equipm

1911. Set calibrator output to 32°F, type J.12. Wait for U.U.T. readout to stabilize, then press HOLD key once, and waita few seconds. U.U.T. should r

20Re-assemble the instrument by following the reverse of the above procedure.CAUTIONDo not use excessive torque when re-installing the nylonmachine-sc

213. MECHANICAL PARTS DIAGRAMBOTTOM COVERMODEL HH-21 819A-307HH-22 819A-307HH-23 819A-307TOP COVERMODEL HH-21 819A-305HH-21 820A-305HH-23 820A-305TC C

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WARRANTY/ DISCLAIMEROMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for aperiod of 37 months from date o

Where Do I Find Everything I Need forProcess Measurement and Control?OMEGA…Of Course!TEMPERATUREThermocouple, RTD & Thermistor Probes, Connector

1TABLE OF CONTENTSGeneral Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Specifications . . . . . . . .

2GENERAL INFORMATIONThis manual provides information on the use of three digital handheld ther-mometers. Functional features both common and unique to

3MAXIMUM COMMON MODE VOLTAGE: 42V peak to earth.POWER: 9 volt transistor battery (NEDA 1604).BATTERY LIFE, CONTINUOUS: 50 hrs typical, carbon-zinc; 10

4DIFFERENCE SPECIFICATIONSMODEL HH-21A:THERMOCOUPLE INPUTS: 1DISPLAY: 5 digit LCD, 0.4" height. Polarity indication, and decimal point.Annunciato

5FEATURES• Temperature trend indication (rising, falling, or stable)• Full range resolution of 0.1 degree• Work with thermocouple types K, J and T• Ke

6SAFETY INFORMATIONSAFETY SYMBOLS AND TERMSThe symbol on the instrument denotes that the user should refer to theoperating instructions.The WARNING us

7WARNINGDo not substitute a metal part for the nylon screw in therear case. Doing so will degrade electrical isolation of thecase.WARNINGThe b