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HH501DK-Series
4-Channel K Type Thermocouple Meter NIST Traceable
Models In Stock
- 4 Inputs with Differential Temperature Measurement
- 3 1 /2 Digital Display with Backlighting
- Measures K Thermocouples in °F or °C
- Read HOLD, MAX Function
HH501DK-Series
From
$
230.07
Models In Stock
Product Overview
- Additional Features 1 Read HOLD,MAX Function
- Battery Indication “+ -” is displayed when battery voltage drops below operating level
- Diameter 53 mm
- Display Type Note 3 1⁄2 digit liquid crystal display (LCD) with maximum reading of 1999 Default Display Output : Zero : Automatic
- Electrical Connection Sub-D Male Miniature Connector
- Height 195 mm
- Measuring Temperature Range, Max 1300 °C
- Measuring Temperature Range, Min -50 °C
- Number of Channels 4
- Operating Temperature, Max 50 °C
- Operating Temperature, Min 0 °C
- Operating Temperature Note 0 to 50°C (32 to 122°F)@ <70% RH
- Overrange (OL) or (-OL) is displayed
- Polarity Automatic, positive implied, negative polarity indication
- Relative Humidity, Max 0.8
- Relative Humidity, Min 0%
- Sampling Rate 2.5 Hz (2.5 updates/second)
- Series ID HH501DK-Series
- Storage Temperature, Max 60 °C
- Storage Temperature, Min -20 °C
- Storage Temperature Note -20 to 60°C (-4 to140°F), 0 to 80% RH with battery removed from meter
- Supply Voltage 9 Vdc
- Temperature Accuracy ± 0.3%
- Temperature Accuracy Note ± (0.3% rdg + 1°C) -50 to 1000°C; ± (0.5% rdg + 1°C) 1000 to 1300°C; ± (0.3% rdg + 2°F) -58 to 1999°F Stated accuracy : 23°C ± 5°C <75% relative humidity (accuracy specification does not include
- Temperature Resolution 0.1 °C
- Temperature Sensor Type Thermocouple
- Thermocouple Type K
- Weight 250 g
- Weight Note Approximately 250 g (9 oz) including battery
- Width 92 mm
Supported Applications
The Omega HH501DK Series is a portable, compact-sized digital thermometer designed to use external K-type thermocouples as temperature sensors. The instrument provides temperature indication following Reference Temperature/Voltage Tables (N.I.S.T. Monograph 175 Revised to ITS-90) for K-type thermocouples.
Applications are limited by specific safety warnings: the device is not designed for use in, and should not be used for, patient-connected applications. Additionally, temperature measurements must not be made inside microwave ovens to avoid damage or burns.
Operating Conditions & Performance
The HH501DK Series operates within an ambient range of 0°C to 50°C (32°F to 122°F) at less than 80% R.H. Storage is supported from -20°C to 60°C (-4°F to 140°F) at less than 70% R.H.
Measurement capabilities cover a range of -50°C to 1300°C (-58°F to 2000°F). Accuracy specifications, valid for operating temperatures between 18°C and 28°C (64°F to 82°F) over one year and excluding thermocouple error, are:
- ±(0.3% rdg + 1°C) from -50°C to 1000°C
- ±(0.5% rdg + 1°C) from 1000°C to 1300°C
- ±(0.3% rdg + 2°F) from -58°F to 2000°F
The temperature coefficient is specified as 0.1 times the applicable accuracy specification per °C outside the standard operating range (from 0°C to 18°C and 28°C to 50°C). The display updates at a rate of 2.5 times per second.
Input Protection
The instrument accepts a maximum input voltage of 24V dc or 24V ac rms on any combination of input pins. Exceeding these voltages may result in electrical shock; users must not use the instrument when measurement surface voltages exceed this limit.
Configuration Options
The series is configured as a single portable unit with the following documented capabilities:
- Sensor Input: Accepts standard miniature thermocouple connectors (flat blades spaced 7.9mm, center to center) for K-type sensors.
- Display & Resolution: Features a 3½ digit liquid crystal display (LCD) with a maximum reading of 1999. User-selectable resolution options include 1°C or 0.1°C and 1°F or 0.1°F.
- Pow er Supply: Operates on a standard 9V battery, providing approximately 200 hours typical life with a carbon zinc battery.
- Housing & Dimensions: The unit measures 192mm(H) x 91mm(W) x 52.5mm(D) and weighs 365g.
The temperature scale is user-selectable between Celsius or Fahrenheit.
Key Product Differences
The HH501DK Series is identified by the model number guide "HH501DK". The series supports ISO 9001 certification in the USA and ISO 9002 certification in the United Kingdom. No alternative housings, process connections, or wetted materials are documented for this portable meter configuration.
PDFs & Manuals
Show Ratings & Reviews
Rated 5 out of
5
by
Jim Hightower from
Design problem
I used a shorting bar to check the four inputs to see if they were the same. They indicated the ambient temperature but, when the supplied thermocouples were plugged in, a different ambient temperature was indicated. I assume that this is due to the tolerance of the thermocouple wire. A bigger difficulty was the spacing of the TC receptacles. When all four TCs are plugged in, it is very difficult to remove one of the plugs. It was necessary for me to pry two of them out with a small screwdriver before the other two could be removed. This is a design problem that should never been approved for manufacture.
Date published: 2020-11-23
Does it come with a immersion thermocouple probe?
The probes that come with the HH501DK are not recommended for immersion and a metal sheathed probe would need to be purchased separately.
Date published: 2020-09-03
We just bought 2 of Omega HH501 Dk thermometers. When temping products it keeps going into OL while we are temping the product. Why does this happen?
The OL would be an open input so one of the Thermocouples is opening up intermittently or at specific temperatures. Make sure the probes are operating within their specified range and try others to filter out possible defective ones.
Date published: 2024-10-04
Does it have data output such as RS-232 or USB?
This unit does not provide a communications output.
Specifications are below:
Temperature Range: -50 to 1300°C (-58 to 1999°F)
Input: Type K thermocouple
Accuracy:
±(0.3% rdg + 1°C) -50 to 1000°C
±(0.5% rdg + 1°C) 1000 to 1300°C
±(0.3% rdg + 2°F) -58 to 1999°F
Display: 3 1/2 digit liquid crystal display (LCD) with maximum reading of 1999
Polarity: Automatic, positive implied, negative polarity indication.
Overrange: (OL) or (-OL) is displayed
Zero: Automatic
Low Battery Indication: visual indicator is displayed when battery voltage drops below operating level.
Measurement Rate: 2.5 times/sec
Operating Environment: 0 to 50°C @ <70% RH
Storage Temperature: -20 to 60°C, 0 to 80% RH with battery removed from meter
Accuracy: Stated accuracy @ 23°C ±5°C <75% relative humidity. (accuracy specification does not include type K thermocouple probe accuracy)
Dimensions: 195 x 92 x 53 mm (7.7 x 3.6 x 2.1")
Weight: Approx. 250 g (9 oz) including battery
Thank you for your question.
Date published: 2019-07-03
What is the length of the provided k thermocouples?
Thank you for your inquiry. The Type K Thermocouple 36" Long.
Date published: 2020-07-25
Does it come with type K thermocouples? Or, I have to buy thermocouples additionally. Is calibration needed before use, or it is already calibrated and tested before shipping? Thanks.
Hi, thanks for connecting with Omega. This unit comes complete with a NIST calibration certificate with no points, user’s manual, 4 beaded K Thermocouples, alkaline battery and a rubber boot. Please contact our Tech Support if you have any further questions. Thank you.
Date published: 2019-05-31