E32-D82F
A-361
E32-D82F
Fluid level sensor (contact type)
E32-D82F
High-accuracy detection of
fluid level in washing tank.
●
Uses Teflon (PFA) with excellent chemical and oil
resistance.
●
Capable of detecting high-temperature fluids
such as sulfuric acid in a wafer washing tank.
(-40 to +200°C)
●
Achieves a high repetition precision of 0.5 mm
(in pure water).
●
Employs a dripping prevention mechanism.
Ordering Information
Rating/performance
Sensor type
Diffuse-reflective
Item
Model
E32-D82F1
E32-D82F2
Standard sensing object
Pure water at 25°C
Differential distance
3 mm max.
Repetition precision
0.5 mm or less
Permissible angle of detection
object inclination
±10° or less
Perim-
eter
Tem-
pera-
ture
Teflon section within
1.5 m of fiber tip*1
*1. Teflon is a registered trademark of Dupont Company and Mitsui Dupont Chemical Company for their
fluoride resin.
Operating: -40 to +200°C, Storage: -40°C to +85°C
(with no icing or condensation)
Parts other than the
above
Operating/storage: -40 to +85°C
(no ice formation or condensation)
Ambient humidity
Operating/storage: 35 to 85% RH
Peripheral pressure
Operating: -50 kPa to 500 kPa
Admissible bending radius
(10% under fluid level)
40 mm or higher (25 mm for plastic fiber section)
average)
Length of no-
bending section
150 mm from tip
350 mm from tip
Material
Sensor case
Teflon (PFA)
Fiber cladding
Black polyethylene
Connector
Brass-nickel coating
Protective structure
IEC Standard IP68*2
*2. Only applies to Teflon section; the standard requires no bubbling when air at 98 kPa is injected for 30 sec-
onds at a depth of 100 mm in water.
Weight (Packed state)
Approx. 75 g
Accessories
Fiber cutter
Principle of operation
• In air, the difference between the index
of refraction of the Teflon section and
that of air is larger, and the light is
reflected by the detected surface and
returns to the light receiver.
• In the fluid, there is almost no difference
between the index of refraction of the
Teflon section and that of the fluid, and
the light radiates into the fluid.
Air
Liquid
Fiber Units
Sensor type
Shape
Model
Remarks
Diffuse-reflective
E32-D82F1
Length of no-bending section:
150 mm from tip
E32-D82F2
Length of no-bending section:
350 mm from tip
Applicable amplifier unit
Model
E3X-DA-N
E3X-NA
