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HH378-Series

4-Channel Handheld Type J, K, T, E Thermocouple Data Logger

Models In Stock
  • Auto Range
  • USB Interface with Windows® Software
  • LED Back Light
  • HOLD Function
HH378-Series
From $ 622.80
Models In Stock
4-Channel Handheld Type J, K, T, E Thermocouple Data Logger HH378-Series HH378-Series
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Product Overview
  • Additional Features 1 MIN/MAX/AVG/REL/HOLD Functions , Auto Power-Off
  • Battery life 30 hr
  • Battery Size and Type Alkaline 9V
  • Data Interface USB
  • Display Type LCD
  • Display Type Note 4 1/2 digit LCD
  • Height 36 mm
  • Input Protection Voltage 250Vac
  • Length 196 mm
  • Measurement Type Temperature
  • Number of Measurements 4
  • Operating Temperature, Max 50 °C
  • Operating Temperature, Min -10 °C
  • Relative Humidity, Max 0.9
  • Relative Humidity, Min 10%
  • Samples,Max 16000
  • Sampling Rate 1 Hz (1 update/second)
  • Sampling Rate Note 1 time per second
  • Series ID HH378-Series
  • Software Compatibility Compatable with Windows NT 4.0/NT2000/XP/Vista/Windows 7
  • Storage Humidity, Max 0.75
  • Storage Humidity, Min 0.1
  • Storage Temperature, Max 60 °C
  • Storage Temperature, Min -40 °C
  • Supply Power Type Battery
  • Temperature Accuracy ± 0.7 °C
  • Temperature Accuracy Note ± (0.1% of reading + 0.7°C) ± (0.1% of reading + 1.4°F) Below -100°C (-148°F): ± (0.4% of reading +0.7°C) ± (0.4% of reading +1.4°F)
  • Temperature Measurement, Max 1372 °C
  • Temperature Measurement, Min -200 °C
  • Temperature Resolution ± 0.1 °C
  • Temperature Resolution Note 0.1°C/°F <1000, 1°C/°F ≥1000
  • Temperature Sensor Type Thermocouple
  • Weight 310 g
  • Width 65 mm

Supported Applications

The Omega HH378 Series is a four-channel handheld data logger thermometer designed for temperature measurement using Type J, K, E, and T thermocouples. The instrument features isolated input protection and includes Windows software for data processing via USB interface.

  • Type J, K, E, and T thermocouple measurements
  • Four simultaneous channel monitoring with 16,000 record storage capacity per channel

Operating Conditions & Performance

The HH378 Series operates within an ambient temperature range of -10 to 50°C (14 to 122°F) and a humidity range of 10 to 90% RH (no condensing). Storage conditions are specified as -40 to 60°C (-40 to 140°F) with 10 to 75% RH. Accuracy is defined as ±(0.1% of reading + 0.7°C) or ±(0.1% of reading + 1.4°F). For measurements below -100°C (-148°F), accuracy shifts to ±(0.4% of reading + 0.7°C) or ±(0.4% of reading + 1.4°F).

  • Resolution: 0.1°C/°F for readings <1000, and 1°C/°F for readings ≥1000
  • Sample rate: 1 time per second
  • Battery lifetime: Approximately 30 hours (alkaline battery)

Configuration Options

The series supports four thermocouple types with the following measurement ranges:

  • Type K: -200 to 1372°C (-328 to 2501°F)
  • Type J: -150 to 1000°C (-238 to 1832°F)
  • Type E: -150 to 750°C (-238 to 1382°F)
  • Type T: -180 to 400°C (-292 to 752°F)

Power is supplied by a 9V battery (included) or an optional AC/DC adapter providing 9 Vdc (8-10 Vdc maximum). The unit features a USB interface for data transfer and includes Windows software. Standard accessories include four free 1 m Type K insulated beaded wire thermocouples with subminiature connectors, a hard carrying case, operator's manual, NIST certificate, and USB cable.

Key Product Differences

The HH378 model is the primary configuration in this series. Optional accessories include Model No. HH300-ADAPTER (Power adapter 115 Vac) and Model No. HH300A-CABLE-USB (Spare USB interface cable). The instrument dimensions are listed as 196 H x 65 W x 36 mm D (7.72 x 2.56 x 1.42") with a weight of approximately 310 g (10.93 oz).

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