Anritsu HR Series High-Accuracy Handheld Thermometers

Anritsu HR Series Handheld Temperature Measurement

The Anritsu HR Series is designed for accurate portable temperature measurement in production, maintenance, quality control, laboratories, food processing and industrial troubleshooting. A wide range of interchangeable probes allows the same thermometer platform to measure stationary surfaces, rotating objects, liquids, air, food, fine components and other specialised targets.

Anritsu reduces errors caused by temperature changes around the input connector by using thermocouple-compatible material through the input section and integrating the reference junction with its compensation system. The result is stable measurement even when the instrument moves between different working environments.

Choose the Correct HR Series Model

Picture	Model family	Connector	Main functions	Waterproof	Best suited to
	HR-1100 / HR-1150	ASP / ANP	Basic LCD, Hold and Auto Off	Equivalent to IPX5	Routine temperature checks requiring a simple waterproof instrument
	HR-1200 / HR-1250	ASP / ANP	Selectable resolution, Max/Min Hold and backlight	Equivalent to IPX5	General industrial work requiring additional display functions
	HR-1300 / HR-1350	ASP / ANP	Calibration adjustment, high/low alarm, Max/Min Hold and backlight	No	Quality checks and processes requiring limits or field adjustment
	HR-1301 / HR-1351	ASP / ANP	HR-13 functions plus analogue output	No	Connecting a recorder, logger or other voltage-input device
	HR-1400 / HR-1450	ASP / ANP	Bright LED display, Hold and Auto Off	Equivalent to IPX5	Dark locations or situations where a bright display is preferred
	HR-1500 / HR-1550	ASP / ANP	19,999-reading memory, interval or manual logging, playback and PC transfer	No	Temperature surveys, verification and recorded inspection rounds
	HR-1650	ANP	Basic LCD with °C/°F switching	Equivalent to IPX5	Simple measurement requiring selectable Celsius or Fahrenheit units
	HR-1750	ANP	Selectable resolution, Max/Min Hold, backlight and °C/°F switching	Equivalent to IPX5	Feature-rich waterproof measurement in Celsius or Fahrenheit

HR Series Technical Specifications

The displayed system uncertainty is the combined effect of thermometer accuracy, reference-junction compensation, probe accuracy, environmental temperature and the contact achieved at the measuring point. The probe normally contributes more to the practical result than the display resolution alone suggests.

Waterproof Models and Connector Selection

HR-1100/1150, HR-1200/1250, HR-1400/1450, HR-1650 and HR-1750 provide protection equivalent to IPX5. Use an HR model with the waterproof ANP connector when water resistance is required at the probe connection.

• ASP connector: Used by HR-1100, HR-1200, HR-1300, HR-1301, HR-1400 and HR-1500 models.
• ANP connector: Used by HR-1150, HR-1250, HR-1350, HR-1351, HR-1450, HR-1550, HR-1650 and HR-1750 models.
• A waterproof thermometer still requires the correct compatible probe and properly seated connector.
• IPX5 protects against water jets; it does not make the thermometer suitable for immersion.
• HR-1300/1350 and HR-1500/1550 are not waterproof models.

Functions by Model

HR-1500 and HR-1550 Memory Models

The memory models store up to 19,999 readings. Measurements can be saved manually or at intervals of 1, 5, 10 or 30 seconds and 1, 5, 10, 30 or 60 minutes. Stored data can be reviewed on the thermometer or transferred to a Windows PC using the optional communication cable and AMS-350 software.

Use memory models for inspection rounds, heating and cooling trials, oven checks, equipment verification or any application where the measured values must be reviewed after the work is complete. They are portable loggers rather than networked continuous-monitoring devices.

Popular Anritsu Temperature Probes

The probe should be selected for the measurement target, not just the expected temperature. These commonly specified Anritsu probe families cover surface, internal, food and moving-surface measurements.

Picture	Probe series	Best suited to	Why choose it
	Anritsu A Series	Stationary surfaces	General-purpose contact probe for routine surface-temperature measurements
	Anritsu AX Series	Stationary surfaces where probe alignment may vary	Contact-support head helps the sensor remain closely seated against the target
	Anritsu CS Series	Small components and restricted surface areas	Compact sensor head reaches measurement points that are too small for a conventional surface probe
	Anritsu MG Series	Stationary ferromagnetic surfaces	Built-in magnet holds the probe in position for convenient hands-free monitoring
	Anritsu BS Series	Liquids and semi-solid materials	General internal-temperature probe with a configurable insertion sheath
	Anritsu BC Series	Food, liquids and semi-solid products	Washable food probe designed for hygienic centre-temperature measurement
	Anritsu ST / STN Series	Flat stationary surfaces and installed measurements	Thin, flexible tape-shaped sensor can be fixed directly to the measurement surface
	Anritsu U Series	Moving or rotating surfaces	Contact-pressure control helps reduce measurement error caused by friction while improving sensor durability
	Anritsu UX Series	Moving or rotating surfaces where alignment may vary	Flexible contact-support head follows the target more closely and remains stable during measurement
	Anritsu SH Series	Small moving or rotating surfaces	Compact contact head is intended for smaller targets where a standard moving-surface probe is unsuitable

Surface Temperature Measurement

Surface measurement accuracy depends on contact, not only instrument specification. Select a sensing head that fits the target, hold it squarely against a clean surface and wait for the reading to stabilise. Curved, rough, very small or rapidly moving targets need a probe specifically designed for that geometry.

• Do not use excessive force; it can damage the sensing head or change the contact condition.
• Keep the handle and cable away from hot zones beyond their stated limits.
• For rotating surfaces, approach only from the approved direction and remain within the probe’s speed rating.
• Repeat the measurement at several positions when the surface may have a temperature gradient.

Internal, Liquid and Food Measurement

Insertion depth must be sufficient to minimise heat conduction along the probe stem. For liquids, stir or move the probe gently when appropriate, while keeping the handle and connector outside the liquid. Food probes should be cleaned and sanitised using a method compatible with the probe materials.

Never use a sharp penetration probe on moving machinery or where it could injure the operator. Review both measurement and hygiene requirements before selecting a food or process probe.

HR Series Product Video

Calibration and Measurement Confidence

Calibrate the thermometer and probe together when the complete measurement system must be verified. A calibration of the display alone does not include probe error, connector condition or the practical contact uncertainty at the target.

• Inspect the probe tip, cable and connector before every measurement session.
• Allow the instrument to stabilise after moving between different ambient temperatures.
• Use a suitable traceable reference and document the thermometer and probe serial numbers.
• Set calibration intervals according to accuracy needs, frequency of use and operating severity.
• Do not use Calibration Set merely to hide unstable contact or a damaged probe.

Anritsu HR Series Supplier and Technical Support

Seacom Process Instruments supplies and supports Anritsu HR Series handheld thermometers and compatible temperature probes. Our team can assist with selecting the HR function level, Type K or Type E input, ASP or ANP connector, probe construction, calibration and accessories.

Contact Seacom with the target material, minimum and maximum temperature, stationary or moving condition, surface shape, required response time, environment and recording requirement so we can recommend a suitable thermometer and probe combination.