Leuze HTU318 Data Sheet

10 - 30 V

DC

IP 67

IEC 60947...

IEC 60947...

HTU318 Ultrasonic sensors with 1 switching output

Dimensioned drawing

en 01-2017/02 50124859

40 … 300mm

80 … 1200mm

 Function largely independent of surface

properties, ideal for detection of liquids,
bulk materials, transparent media, …

 Small dead zone at long scanning range
 Adjustment of the switching point can be

taught

 NO/NC function reversible
 1 switching output (PNP or NPN)
 Extra short construction
 NEW – Stable plastic design
 NEW – Temperature-compensated

scanning range

Accessories:

(available separately)

 Mounting systems
 Mounting adapter M18-M30:

BTX-D18M-D30 (Part no. 50125860)

 Cables with M12 connector

(KD …)

 Teach adapter PA1/XTSX-M12

(Part no. 50124709)

We reserve the right to make changes • PAL_HTU318_300_1200_1SWO_en_50124859.fm

A Active sensor surface
B Indicator diodes

Electrical connection

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone]

HTU318-300…-M12 - 01

HTU318-1200…-M12 - 01

Object distance x [mm]

Width y of the sound cone [mm]

Typ. response behavior (plate 100x 100mm)

-100

-50

0

50

100

0 50 100 150 200 250 300 350

y1

y2

Object distance x [mm]

Width y of the sound cone [mm]

Typ. response behavior (rod Ø 25 mm)

-200

-100

0

100

200

0 200 400 600 800 140012001000

y1

y2

Object distance x [mm]

Width y of the sound cone [mm]

Typ. response behavior (plate 100x 100mm)

-200

-100

0

100

200

0 200 400 600 800 140012001000

y1

y2

Object distance x [mm]

Width y of the sound cone [mm]

Typ. response behavior (rod Ø 25 mm)

Object distance [mm]

Target (fixed):

plate or rod

Sound cone

= f (α,x)

HTU318

Technical data

Ultrasonic specifications HTU318-300/…-M12 HTU318-1200/…-M12

Scanning range
Adjustment range 40 … 300mm 80 … 1200mm
Ultrasonic frequency 300kHz 200kHz
Typ. opening angle 7° ± 2 ° 8° ± 2 °
Resolution <2mm <2mm
Direction of beam Axial Axial
Reproducibility ± 0.5%
Switching hysteresis 1% 3) 1%
Temperature drift ≤ 5%

Timing

Switching frequency 8Hz 5Hz
Response time 62ms 100ms
Readiness delay < 100ms < 100 ms

Electrical data

Operating voltage U
Residual ripple ± 5% of U
Open-circuit current ≤ 35mA
Switching output …/4…

Function NO (normally open), preset
Output current Max. 150 mA
Switching range adjustment 1-point teach: teach-in (pin 2) 2 … 7s to U

Changeover
NO/NC

Indicators

Yellow LED OUT1: object detected
Yellow LED, flashing Teach-in
Green and yellow LEDs flashing Teaching error
Green LED Object within the scanning range

Mechanical data

Housing Plastic (PBT)
Active surface Epoxy resin, glass fiber reinforced
Weight 65g

Ultrasonic transducer Piezoceramic

Connection type M 12 connector, 4-pin
Fitting position Any

Environmental data

Ambient temp. (operation/storage) -20° … +70°C/-20° … +70°C
Protective circuit
VDE protection class III
Degree of protection IP 67
Standards applied EN 60947-5-2
Certifications UL 508, CSA C22.2 No.14-13

1) At 20°C

2) Target: 100mm x 100 mm plate

3) From end value

4) Over the temperature range -20°C … +70°C

5) For UL applications: use is permitted exclusively in Class 2 circuits according to NEC

6) The ceramic material of the ultrasonic transducer contains lead zirconium titanate (PZT)

7) 1=short-circuit and overload protection, 2=polarity reversal protection, 3=wire break and inductive protection

8) These proximity switches shall be used with UL Listed Cable assemblies rated 30V, 0.5 A min,
in the field installation, or equivalent (categories: CYJV/CYJV7 or PVVA/PVVA7)

1)

5)

B

7)

40 … 300mm 2)

1) 3)

4)

10 … 30V DC (incl. ± 5% residual ripple)

B

1 PNP transistor switching output

…/2…

1 NPN transistor switching output

2-point teach: teach-in (pin 2) 7 … 12s to U
Teach-in (pin 2) > 12s to UB

6)

1, 2, 3

80 … 1200mm 2)

1) 3)

±0.5%

3)

≤ 5% 4)

,

B

B

5) 8)

Diagrams

HTU318-300/…-M12

100

50

0

-50

-100
0 50 100 150 200 250 300 350

HTU318-1200/…-M12

y2

y1

HTU318-300…-M12 - 01 2017/02
HTU318-1200…-M12 - 01

Notes

Observe intended use!

 This product is not a safety sensor

and is not intended as personnel
protection.

 The product may only be put into

operation by competent persons.

 Only use the product in accor-

dance with its intended use.

HTU318 Ultrasonic sensors with 1 switching output

Part number code

HTU318-1200 . 3 /4T-M12

Operating principle
HTU Ultrasonic sensor, scanning principle, with background suppression
DMU Ultrasonic sensor, distance measurement

Series
318 318 series, cylindrical short M18 design

Scanning range in mm
300 40 … 300
1200 80 … 1200

Equipment (optional)
.3 Teach button on the sensor

Pin assignment of connector pin 4 / black cable wire (OUT1)
4 PNP output, NO contact preset
P PNP output, NC contact preset
2 NPN output, NO contact preset
N NPN output, NC contact preset
C Analog output 4 … 20 mA
V Analog output 0 … 10 V

Pin assignment of connector pin 2 / white cable wire (Teach-IN)
T Teach input

Connection technology
M12 M12 connector, 4-pin

Order guide

The sensors listed here are preferred types; current information at www.leuze.com.

Designation Part no.

Scanning range / switching output

40 … 300mm / PNP HTU318-300/4T-M12 50136070
40 … 300mm / NPN HTU318-300/2T-M12 50136071
80 … 1200mm / PNP HTU318-1200/4T-M12 50136074
80 … 1200mm / NPN HTU318-1200/2T-M12 50136075

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] HTU318-300…-M12 - 01

HTU318-1200…-M12 - 01

Dead zone

Sensor

OUT active
Yellow LED ON
Green LED OFF

OUT not active
Yellow LED OFF
Green LED ON

Distance

Hysteresis

Switching point

Scanning range

OUT not active

Yellow LED OFF

Green LED OFF

OUT not active
Yellow LED OFF
Green LED OFF

Dead zone

Sensor

OUT not active
Yellow LED OFF
Green LED ON

OUT active
Yellow LED ON
Green LED OFF

Distance

Hysteresis

Switching point

Scanning range

OUT active

Yellow LED ON

Green LED OFF

OUT active
Yellow LED ON
Green LED OFF

Dead zone

Sensor

OUT active
Yellow LED ON
Green LED OFF

OUT not active
Yellow LED OFF
Green LED ON

Distance

Hysteresis

Scanning range

OUT not active

Yellow LED OFF

Green LED OFF

OUT not active
Yellow LED OFF
Green LED OFF

Hysteresis

OUT not active
Yellow LED OFF
Green LED ON

Switching point 1 Switching

point 2

Dead zone

Sensor

OUT active
Yellow LED ON
Green LED OFF

OUT not active
Yellow LED OFF
Green LED ON

Distance

Hysteresis

Scanning range

OUT active

Yellow LED ON

Green LED OFF

OUT active
Yellow LED ON
Green LED OFF

Hysteresis

Switching point 1 Switching

point 2

OUT active
Yellow LED ON
Green LED OFF

HTU318

Device functions and indicators

All settings on the sensor are taught-in via the Teach-IN input. Device status and switching states are indicated as follows by
means of a LED:

Switching behavior

1-point teach (1 switching point)

Switching behavior NO contact Switching behavior NC contact

2-point window-teach (2 switching points)

Switching behavior NO contact Switching behavior NC contact

Note!

The switching behavior is not defined in the dead zone.

Switching behavior with 2-point window-teach as a function of the switching function

Switching function

configured as

NO (normally open)

NC (normally closed)

HTU318-300…-M12 - 01 2017/02
HTU318-1200…-M12 - 01

First taught object

distance

Second taught object

distance

Far Close

Close Far

Far Close

Close Far

Output switching behavior

HTU318 Ultrasonic sensors with 1 switching output

Adjusting the switching point via the teach input

The switching point of the sensor is set to 300mm or 1200 mm on delivery.

By means of a simple teach event, the switching points can be individually taught to an arbitrary distance within the scanning
range with 1-point teach (static) or 2-point window-teach (static). The Leuze PA1/XTSX-M12 Teach Adapter can be used for this
purpose. The adapter can also be used to easily switch the output function from NO contact to NC contact.

1-point teach (static) 2-point window-teach (static)

1. Place object at desired switching distance. 1. First, place object at desired switching distance for switching point 1.

2. To adjust output OUT1, connect the Teach-IN input to U

(Leuze Teach Adapter: position "Teach-UB").
The current state of output OUT1 is frozen while the adjustment is made.

3. The yellow LED flashes at 3Hz and is then ON.
The current object distance has been taught as the new switching point.

4. Error-free teach: LED states and switching behavior according to the dia­gram shown above.
Faulty teach (object may be too close or too far away – please note scan­ning range):
green and yellow LEDs flash at 8Hz until an error-free teach event is
performed.
The output OUT1 is inactive as long as there is a teaching error.

for 2…7s

B

2. To adjust output OUT1, connect the Teach-IN input to UB for 7…12s
(Leuze Teach Adapter: position "Teach-UB") until the yellow and green
LEDs flash alternately at 3Hz.

3. Release the button. The sensor remains in teach mode and the LEDs

continue to flash.

4. Then, place the object at the desired switching distance for switching
point 2.

Note:The minimum distance between the switching points is a s fo llo ws:

5. To complete the teach event, briefly connect the Teach-IN input to UB

again (Leuze Teach Adapter: position "Teach-UB").
The switching window was taught in.

6. Error-free teach: LED states and switching behavior according to the
diagram shown above.
Faulty teach (object may be too close or too far away – please note scan­ning range):
green and yellow LEDs flash at 8Hz until an error-free teach event is
performed.

scanning range of 400 mm:40mm
scanning range of 1200mm:120mm

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] HTU318-300…-M12 - 01

HTU318-1200…-M12 - 01

HTU318

Adjusting the switching function (NC/NO) via the teach input

The switching function of the sensor is preset as follows on delivery:

 OUT 1: NO contact

The output function can be switched from NO contact (NO - normally open) to NC contact (NC - normally closed) and vice versa.
Leuze Teach Adapter PA1/XTSX-M12 can be used for this purpose. If the switching function is changed, the switching output is
changed to the opposite state (toggled).

Changeover of the switching function

1. To change the switching function, connect the Teach-IN input to UB for more than 12s (Leuze Teach Adapter: position "Teach-UB").
The current state of output OUT1 is frozen while the adjustment is made.

2. The green and yellow LEDs flash alternately at 2Hz.

The switching function was changed over.
The switching behavior corresponds to the diagram shown above.

Resetting to factory settings

The sensor can be reset to the factory setting (one switching point at 300 mm or 1200 mm).
Leuze Teach Adapter PA1/XTSX-M12 can be used for this purpose.

Resetting to factory settings

1. When switching on the supply voltage (during Power-On), connect the Teach-IN input to UB for > 5s (Leuze Teach Adapter position "Teach-UB").
The green and yellow LEDs flash alternately and very quickly for a brief time.

2. Disconnect the Teach-IN input from U

1 switching point at 300 mm or 1200 mm (1-point teach, static).

. The sensor was reset to the factory setting:

B

HTU318-300…-M12 - 01 2017/02
HTU318-1200…-M12 - 01