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FL Series Catalogue
Fiber Optic Thermometer FL Series
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Anritsu FL Series Fiber Optic Thermometers – FL-2000 & FL-2400
The Anritsu FL Series uses fiber optic probes to measure temperature in microwave, high-voltage and strong electromagnetic environments where conventional electrical probes may be unsuitable.
- FL-2000: one measurement channel.
- FL-2400: four measurement channels.
- 0.1°C resolution.
- Probe options for chemicals, intense light, high temperatures and semisolid samples.
- Analog output and RS-232C communication.
Probes are ordered separately. The usable temperature range depends on the selected probe.
Anritsu FL Series Fiber Optic Thermometers
The Anritsu FL Series measures temperature using dedicated fiber optic probes in applications exposed to microwaves, strong electromagnetic fields or high voltages. Choose the FL-2000 for one measurement channel or the FL-2400 for four channels.
The optical sensing method provides an alternative where electrical interference makes conventional temperature probes difficult to use. Select the probe for the actual temperature, material and installation conditions.
Key Features
- One-channel and four-channel instrument options.
- 0.1°C resolution.
- Dedicated probes for general use, chemicals, intense light, high temperatures and semisolid samples.
- Analog temperature output and RS-232C communication.
- AMS-850 software for transferring measurements to a PC.
Compare FL Instruments
| Specification | FL-2000 | FL-2400 |
|---|---|---|
| Channels | 1 | 4 |
| Instrument range | −195.0 to 450.0°C | −195.0 to 450.0°C |
| Internal memory | Up to 15,000 readings at one-second intervals | No internal memory |
| Power | Specified AC supply or six AA alkaline batteries | Specified AC supply |
| Approximate power consumption | 12 VA | 40 VA |
| Dimensions, excluding protrusions | 210 × 88 × 230 mm (W × H × D) | 320 × 99 × 280 mm (W × H × D) |
| Approximate weight | 3 kg | 5 kg |
FL-2000 One-Channel Thermometer
FL-2400 Four-Channel Thermometer
Temperature probes are ordered separately. Specify the required AC supply when ordering: the existing specification lists 100, 115 or 230 VAC configurations.
Measurement Specifications
| Parameter | Published specification |
|---|---|
| Resolution | 0.1°C |
| Accuracy without calibration | ±2°C from −195.0 to 399.9°C; ±5°C from 400.0 to 450.0°C |
| Accuracy with calibration | ±0.5°C within ±50°C of the calibration point |
| Calibration method | One-point calibration at an actual temperature within the measuring range |
| Operating environment | 0 to 40°C; 15 to 80% RH, non-condensing |
| Communication | RS-232C, 9600 bps |
| Analog output | 10 mV/°C; 1 mV resolution |
The instrument’s range does not extend the rating of a connected probe. Use the narrower applicable range and confirm the calibration conditions required for your measurement.
Fiber Optic Probe Selection
Each probe below is shown with its existing product picture. Model-code asterisks indicate ordering selections, such as cable length or coating length; confirm the complete code before ordering.
FS100-*M General-Purpose Probe
| Specification | FS100-*M |
|---|---|
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| Temperature range | −190 to 260°C |
| Selection guidance | General measurements involving microwaves or electromagnetic fields. |
| Repair classification | Listed as repairable; assessment depends on the damage |
FS150-*M Durable General-Purpose Probe
| Specification | FS150-*M |
|---|---|
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| Temperature range | −190 to 260°C |
| Selection guidance | A more robust tip arrangement with the sensing section the same thickness as the cable. |
| Repair classification | Listed as repairable; assessment depends on the damage |
FS100H-**-*M Liquid and Chemical-Resistant Probe
| Specification | FS100H-**-*M |
|---|---|
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| Temperature range | −190 to 260°C |
| Selection guidance | For compatible oils, liquids and chemicals; select the required coating configuration. |
| Repair classification | Listed as repairable; assessment depends on the damage |
FS150H-**-*M Durable Liquid and Chemical-Resistant Probe
| Specification | FS150H-**-*M |
|---|---|
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| Temperature range | −190 to 260°C |
| Selection guidance | Liquid and chemical-resistant construction with a more robust tip arrangement. |
| Repair classification | Listed as repairable; assessment depends on the damage |
FS200-*M Chemical-Resistant Probe
| Specification | FS200-*M |
|---|---|
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| Temperature range | −30 to 200°C |
| Selection guidance | For compatible chemicals; confirm the fluid and concentration before selection. |
| Repair classification | Listed as repairable; assessment depends on the damage |
FS300-*M Light-Resistant Probe
| Specification | FS300-*M |
|---|---|
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| Temperature range | −190 to 260°C |
| Selection guidance | For measurements exposed to intense light, including laser or plasma environments. |
| Repair classification | Listed as repairable; assessment depends on the damage |
FS400-*M High-Temperature Probe
| Specification | FS400-*M |
|---|---|
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| Temperature range | −20 to 400°C |
| Selection guidance | For high-temperature materials, including semiconductor applications; not for liquids. |
| Repair classification | Listed as repairable; assessment depends on the damage |
FS500-*M Needle Probe
| Specification | FS500-*M |
|---|---|
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| Temperature range | −60 to 260°C |
| Selection guidance | For insertion into semisolid samples such as food. |
| Repair classification | Listed as repairable; assessment depends on the damage |
FS600-*M Plastic Probe
| Specification | FS600-*M |
|---|---|
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| Temperature range | 0 to 80°C |
| Selection guidance | For specialised research applications involving MRI, NMR or hyperthermia equipment; confirm the complete installation requirements. |
| Repair classification | Not repairable |
Extension Cables and Installation Accessories
Check the complete optical connection arrangement, routing and mechanical support before selecting extensions or fittings.
FK1-*M General-Purpose Extension Cable
Extension cable for standard installations.
FK2-*M Heavy-Duty Extension Cable
Extension cable for more demanding installation environments.
FA1 Connection Adapter
Connects a probe to an extension cable.
FN1-T Compression Fitting
NPT 1/8 fitting with TFE sealant material.
FN1-V Compression Fitting
NPT 1/8 fitting with Viton sealant material.
For a vacuum or pressure-vessel installation, confirm the rating of the complete probe-and-fitting assembly at the operating temperature. The published FN1 test uses a stainless steel rod and must not be treated as an unconditional pressure rating for every fiber probe installation.
PC Connection and Data Collection
The existing product documentation specifies AMS-850 software and RS-232C communication. The FL-2000 provides internal memory, whereas the FL-2400 requires an external data-collection arrangement when records are needed.
Confirm software, operating-system and connection compatibility before ordering. The existing page lists older Windows versions; it does not establish Windows 11 support.
FL Series Video
Choosing an FL Measurement System
- Measurement points: decide whether one or four channels are required.
- Environment: describe the microwave, electrical, magnetic or light exposure.
- Probe contact: specify the surface, liquid or sample, including chemical composition where relevant.
- Installation: provide cable length, routing, mounting and any vessel-entry requirements.
- Records and outputs: identify whether you need PC data collection or an analog signal.
Related Anritsu Instruments
Need Help Selecting an FL Thermometer?
Contact Seacom Process Instruments Sdn Bhd with your temperature range, number of channels, sample material and measurement environment. For an existing system, include the instrument and probe model numbers.
16 other products in the same category:
The Sato SK-270WP is a waterproof handheld digital thermometer with interchangeable probes for food temperature checks, liquids and quality control.
- −40 to 250°C measuring range with the standard S270WP-01 probe.
- 0.1°C display resolution.
- IP67-rated main unit when connected to a probe.
- HOLD, automatic power-off and temperature/time alarms.
- Penetration, long-stem, immersion and surface probe options.
Measuring range and waterproof protection depend on the probe selected. The S270WP-41 surface probe is not waterproof.
The Hyoda S6 is a fluid-filled thermometer with a 150 mm dial and remote sensing bulb connected by capillary tube.
- Wall-mounted display for convenient temperature reading.
- S6 with IP43 protection; S6-WP with IP65 protection.
- Liquid-filled and gas-filled configurations.
- Indication-only or optional one or two pointer contacts.
- Optional maximum-temperature pointer.
The EDL Steel-Cased Pocket-Probe is a portable digital thermocouple thermometer for production, maintenance and laboratory temperature checks.
- Durable steel housing with a protective cover.
- Selectable °C and °F display with 0.1° resolution.
- Available in separate Type K, J, E and T versions.
- Accepts matching miniature-plug thermocouple probes.
- Optional peak hold, magnetic backing and Lexan display window.
Probes are sold separately. Match the probe’s thermocouple type and temperature range to the selected instrument.
The Sato 7610-20 is a traditional brass aneroid barometer with an integrated glass thermometer for local atmospheric-pressure and temperature observation.
- Atmospheric-pressure range from 930 to 1070 hPa
- Secondary pressure scale from 700 to 800 mmHg
- Movable index pointer helps indicate pressure change
- Glass thermometer covering −10 to +50 °C
- Fully mechanical and requires no battery or external power
- Buffed brass case with a glass front
- Specified for installation up to 500 m altitude
The Sato SK-1260 is a handheld digital thermometer with memory and high/low alarms, supporting dedicated thermistor and Type K thermocouple probes.
- Stores up to 180 readings manually or 120 readings automatically.
- High and low temperature alarms.
- MAX/MIN, HOLD and relative-temperature functions.
- IPX4 protection against water splashes.
- Probe options for liquids, food, air and surface measurements.
- Optional printer for stored readings.
Available with the SK-S100K standard probe or as a main unit without a probe. Measuring range depends on the selected probe.
The Hyoda ES-UT is a liquid-filled temperature instrument with a remote sensing bulb and microswitch contacts.
- One or two microswitch contacts.
- Available temperature scales within −70 to 400°C.
- Wall-mounted enclosure with IP65 protection.
- Published explosion-proof designation: d2G4.
- Confirm approval suitability for the installation.
The Anritsu AP-400 Series combines a high-accuracy thermocouple thermometer with a built-in thermal printer. Measurements can be printed immediately, printed automatically at selected intervals or stored and printed later.
- Single-channel handheld thermometer with built-in printer
- Manual, interval and sequential-number printing
- Stores up to 100 measurements for batch printing
- AP-400 supports Type E or K with an ASP connector
- AP-450 supports Type E, K, J, T or R with an ANP connector
- Thermocouple type is selected when ordering and is not switchable
- Powered by four AA batteries or an optional AC adaptor
The Anritsu HD Series is discontinued. The HR Series provides replacements for the main HD handheld thermometer models.
- HD-1200 → HR-1200.
- HD-1250 → HR-1250.
- Additional replacements for basic, alarm, LED and memory models.
- Confirm the thermocouple type, probe connector and required functions.
The Sato HIGHEST II combines a dial hygrometer and digital thermometer for convenient local checks of room temperature and humidity.
- Humidity range: 20 to 100% RH.
- Temperature range: 0 to 50°C.
- Human hair humidity sensor and thermistor temperature sensor.
- 2% RH dial graduations and 0.1°C temperature display resolution.
- 135 mm diameter body with wall-mount bracket.
- Powered by one AA battery.
The Sato SK-8950 measures surface temperature without contact, with a circular laser marker and adjustable emissivity to suit different materials.
- Measuring range: −60 to 550°C.
- Approximately 12:1 distance-to-spot ratio.
- Adjustable emissivity from 0.10 to 1.00.
- High/low alarms and MAX, MIN, AVG and DIF display.
- Backlit display and continuous measurement mode.
- IP54 protection against dust and water splashes.
For industrial surface measurements; not intended for clinical body-temperature measurement.
Anritsu AR-6500 series infrared thermometers are capable of non-contact temperature measurement and come with contact type thermometer functions
Sato SK-170GT WBGT Heat Stress Monitor is a portable all-in-one instrument for assessing heat stress in indoor and outdoor working environments.
It measures and displays the WBGT index, ambient temperature, globe temperature and relative humidity. Its built-in black globe detects radiant heat from direct sunlight, hot machinery and surrounding surfaces.
- WBGT, temperature, globe temperature and humidity measurement
- Selectable indoor and outdoor WBGT modes
- Conforms to JIS B 7922 Class 2 based on ISO 7243
- Adjustable WBGT alarm with approximately 75 dB buzzer
- MAX/MIN, display hold and automatic power-off
- Wind-speed compensation setting
- Optional RS-232C connection for real-time PC monitoring
- Tripod mounting hole and carrying case included
Hyoda fluid-filled thermometers provide temperature indication and optional switching for industrial applications.
- Liquid-filled and gas-filled configurations, depending on model.
- Remote sensing arrangements with a bulb and capillary tube.
- Indication-only, pointer-contact and microswitch options.
- Model-specific dial sizes, mounting arrangements and enclosure protection.
Select the temperature scale, sensing arrangement and contact requirements to suit your installation.
The Hyoda KME-2 and KME-4 provide temperature switching through a remote sensing bulb and one microswitch contact.
- KME-2 includes a temperature indicator.
- KME-4 operates without a temperature indicator.
- Liquid-filled and gas-filled configurations.
- Wall-mounted enclosure with IP43 drip-proof protection.
- Published contact rating: AC 125 V or 250 V / 5 A.
The Hyoda M Series provides remote temperature indication through a sensing bulb and capillary tube.
- M3, M4 and M6 models with 75, 100 and 150 mm dials.
- Liquid-filled and gas-filled configurations.
- IP43 standard models and IP65 WP versions.
- Indication-only or pointer-contact configurations.
The Anritsu HR Series combines accurate Type K or Type E thermocouple measurement with a large display and an extensive choice of probes for surfaces, moving objects, liquids, air, food and specialised applications.
- Type K range from −200 to +1,370 °C
- Type E range from −200 to +800 °C
- Selected models with waterproof protection equivalent to IPX5
- Basic, standard, alarm, analogue-output, LED and memory versions
- ASP or waterproof ANP probe connector according to model
- Test report, soft case, hand strap and batteries included