Model
FI-T25
Supported pipe diameter
3/4″, 1″
(20A, 25A)
ø22–38 ø0.87″–1.50″
Supported pipe materials
Metal piping
Supported temperature range
−20 to +180°C –4 to +356°F*1
Display method
Organic EL, status indicator light
Display resolution
0.1°C 32.18°F
Response time
5 s (50% response), 15 s (90% response)*2
Display amplifier averaging time
0.1 s / 10.0 s / 20.0 s / 30.0 s / 60.0 s / 120.0 s / 300.0 s
Measurement accuracy
±0.5°C ±0.9°F (pipe temperature −20 to +80°C –4 to 176°F) (ambient temperature of 25°C 77°F)*2*3
±1.0°C ±1.8°F (pipe temperature 80–180°C 176–356°F) (ambient temperature of 25°C 77°F)*2*3
Hysteresis
Variable
Measurement principle
Pt100 4-wire type
Power I/O connector
M8 4-pin connector
Power supply
Current consumption
20 mA or less (excluding load current)*4
When used standalone
I/O (switchable)
Output (Ch1/Ch2)
Control output: switching NPN/PNP setting
Open collector output: 30 VDC or less, maximum 100 mA/ch or less, residual voltage 2.5 V or less*5
Analog output (Ch2)
4–20 mA / 0–20 mA (switchable), load resistance 260 Ω or less*5
Power voltage
20–30 VDC, ripple (P-P) 10% included; Class2/LPS*5
Protection circuit
Protection against reverse power connection, power supply surges, output short circuits, and output surges*5
Network compatibility
IO-Link*6*5
Environmental resistance
Enclosure rating
IP65/IP67 (IEC60529)
Ambient temperature
–10 to +60°C -14 to +140°F (no freezing)
Relative humidity
35–85% RH (no condensation)
Vibration resistance
10–500 Hz; power spectral density: 0.816 G2/Hz; X, Y and Z directions
Shock resistance
100 m/s2 (approx. 10 G), 16 ms pulses, 1000 times each for X, Y and Z directions
Material
Display amplifier
PBT / PAR / POM / SUS303
Sensor head
Head: PPS / SUS303 / Sn; Pipe clamp unit: SUS304; Cable: fluororesin
Display amplifier mounting bracket
SUS304
Weight
Approx. 65 g 2.29 oz
*1 When pipe temperature is 100°C 212°F or more, the display amplifier cannot be mounted on the pipe clamp unit. Install the amplifier so it is insulated from the heat from the pipe.
*2 This is the guaranteed value from verification performed at KEYENCE inspection facilities. Measurement error may occur depending on the type and condition of the customer’s pipes and fluid, the ambient temperature and other factors.
*3 This is the value for a constant 25°C 77°F environment, taking into account absolute error and repeatability.
*4 During standalone use, 220 mA or less including load.
*5 When connecting to a FD-H Series/FI-1000 model, please follow the specifications of the display unit.
*6 Supports IO-Link specification v.1.1/COM2 (38.4 kbps). Setting files can be downloaded from the KEYENCE website (www.keyence.com).
IO-Link is a trademark or registered trademark of PROFIBUS Nutzerorganisation e.V. (PNO).
