FT3700, FT3701

Non-contact Infrared Thermometer – Sharply Focus on
Measurement Spots with Two-Beam Laser Marker, Ideal
for HVAC Applications

How to Use the Hioki Infrared Thermometer FT3700/FT3701

Basic introduction to using a Hioki infrared thermometer
Introduces how to use Hioki’s FT3700/FT3701 Infrared Thermometer, from activating the laser marker and setting the emissivity to making measurements. The instrument makes it easy to measure the temperature of targets such as an air-conditioner outlet some distance away, a circuit-breaker in a distribution panel that poses the risk if touched, and an operating motor.

Choose according to your measurement location Two Models

FT3700-20: Long-focus, For measuring temperature over a wide area
FT3701-20: Long-focus, Precise-field, For measuring temperature at a single point

Identify the measurement location reliably Two-point laser marker

Non-contact infrared thermometer featuring simple, one-touch measurement

Easy operation: just pull the measurement trigger
Release it to hold the measured value

Since the instrument measures radiation temperature, it’s easy to make readings in hazardous or unreachable locations

Locations that cannot be touched due to moving parts
Locations that pose the risk of electric shock
Unreachable locations

It’s optimal for measuring temperature anywhere

Basic specifications (Accuracy guaranteed for 1 year)

FT3700-20 FT3701-20
Measurement temperature range -60.0 to 550.0 ˚C (-76 to 1022 ˚F), 0.1 ˚C resolution -60.0 to 760.0 ˚C (-76 to 1400 ˚F), 0.1 ˚C resolution
Accuracy -35.0 to -0.1 ˚C (-31.0 to 31.9 ˚F) : ±10 %rdg. ±2 ˚C
0.0 to 100.0 ˚C (-32.0 to 212.0 ˚F) : ±2 ˚C
100.1 to 500.0 ˚C (212.1 to 932.0 ˚F) : ±2% rdg.
Note) -60.0 to -35.1 ˚C (-76.0 to -31.1 ˚F), and over 500.1 ˚C (932.0 ˚F) : Accuracy not specified
Response time 1 sec (90%)
Measurement wavelength 8 to 14 µm
Thermal emissivity compensation ε=0.10 to 1.00 (0.01 step)
Measurement field diameter ε=0.10 to 1.00 (0.01 step) φ 100 mm at 3000 mm (3.94 in at 9.84 ft)
(Distance : Spot = 30 : 1)
Sighting Two-beam laser marker Max 1 mW (class 2), Red
Functions Continuous measurement mode, MAX/ MIN/ DIF (MAX – MIN)/ AVG measurement, Alarm, Backlight, Auto power-off
Power supply LR03 (AAA) alkaline battery ×2, 150 mVA, Continuous use of 140 hours (With laser marker, backlight and buzzer are OFF)
Dimensions and mass 48 mm (1.89 in) W × 172 mm (6.77 in) H × 119 mm (4.69 in) D, 256 g (9.0 oz), (including batteries)
Accessories Instruction manual ×1, LR03 alkaline battery ×2, Carrying case ×1
Catalog: INFRARED THERMOMETER FT3700, FT3701 Download PDF  [1MB] English

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