Omega HH501AJ User Manual

OMEGA

HH501AJ

Digital Thermometer

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It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification
of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts no liability for any errors it contains,
and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient connected application.

For immediate technical or application assistance:

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INTRODUCTION

This instrument is a 3½ digit, compact-sized portable digital thermometer
designed to use external J-type thermocouples as temperature sensor.
Temperature indication follows Reference Temperature/Voltage Tables
(N.I.S.T. Monograph 175 Revised to ITS-90) for J-type thermocouples.

SAFETY INFORMATION

It is recommended that you read the safety and operation instructions before
using the thermometer.

WARNING

To avoid electrical shock, do not use this instrument when working

voltages at the measurement surface over 24V AC or DC.

WARNING

To avoid damage or burns, do not make temperature

measurement in microwave ovens.

CAUTION

Repeated sharp flexing can break the thermocouple leads. To prolong

lead life, avoid sharp bends in the leads, especially near the connector.
The symbol on the instrument indicates that the operator must refer to an

explanation in this manual.

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SPECIFICATIONS

ELECTRICAL

Temperature Scale: Celsius or Fahrenheit user-selectable.
Measurement Range:

-210°C to 1200°C, -346°F to 1999°F

Resolution: 0.1°C , 0.1°F

(-59.9°C to 199.9°C ,-59.9°F to 199.9°F)
1°C , 1°F on other range

Accuracy: Accuracy is specified for operating temperatures over the range of

18°C to 28°C (64°F to 82°F), for 1 year, not including thermocouple error.

±(0.1% rdg + 1.0°C) on -60°C to 1200°C
±2.0°C on -60°C to -210°C
±(0.1% rdg + 2.0°F) on -60°F to 1999°F
±4.0°F on -60°F to -346°F

Temperature Coefficient: 0.1 times the applicable accuracy specification per

°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.

Reading Rate: one time per second.
Input Connector: Accepts standard miniature thermocouple connectors (flat

blades spaced 7.9mm, center to center).

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