Autonics PR Series (DC 2-wire) Cylindrical Inductive Proximity Sensors Instruction Manual

: June 10, 2024
: Autonics

Table of Contents

PR Series (DC 2-wire) Cylindrical Inductive Proximity Sensors
Safety Considerations
Ordering Information
Connections
Operation Timing Chart
Specifications
Cut-out Dimensions
Mutual-interference & Influence by Surrounding Metals
Flush+General type
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Series (DC 2-wire) Cylindrical Inductive Proximity Sensors
Instruction Manual

$Autonics PR Series $DC 2-wire$ Cylindrical Inductive Proximity Sensors -$

PR Series (DC 2-wire) Cylindrical Inductive Proximity Sensors

For your safety, read and follow the considerations written in the instruction manual, other manuals and Auto nicks website.
The specifications, dimensions, etc. are subject to change without notice for product improvement. Some models may be discontinued without notice.
Major Features

Spatter-resistant type : PTFE coated for high heat resistance (prevent malfunction from welding spatter)
Operation indicator (red LED)
IP67 Protection structure (IEC standards)

Safety Considerations

Observe all ‘Safety Considerations’ for safe and proper operation to avoid hazards.
symbol indicates caution due to special circumstances in which hazards may occur.

Warning Failure to follow instructions may result in serious injury or death.

Fail-safe device must be installed when using the unit with machinery that may cause serious injury or substantial economic loss. (e.g. nuclear power control, medical equipment, ships, vehicles, railways, aircraft, combustion apparatus, safety equipment, crime/disaster prevention devices, etc.) Failure to follow this instruction may result in personal injury, economic loss or fire.
Do not use the unit in the place where flammable/explosive/corrosive gas, high humidity, direct sunlight, radiant heat, vibration, impact, or salinity may be present. Failure to follow this instruction may result in explosion or fire.
Do not disassemble or modify the unit. Failure to follow this instruction may result in fire.
Do not connect, repair, or inspect the unit while connected to a power source. Failure to follow this instruction may result in fire.
Check ‘Connections’ before wiring. Failure to follow this instruction may result in fire.

Caution Failure to follow instructions may result in injury or product damage.

Use the unit within the rated specifications. Failure to follow this instruction may result in fire or product damage.
Use a dry cloth to clean the unit, and do not use water or organic solvent. Failure to follow this instruction may result in fire.
Do not supply power without load. Failure to follow this instruction may result in fire or product damage.

Cautions during Use

Follow instructions in ‘Cautions during Use’. Otherwise, it may cause unexpected accidents.
12-24 VDC power supply should be insulated and limited voltage/current or Class 2, SELV power supply device.
Use the product, after 0.8 sec of supplying power.
Wire as short as possible and keep away from high voltage lines or power lines, to prevent surge and inductive noise.
Do not use near the equipment which generates strong magnetic force or high frequency noise (transceiver, etc.).
In case installing the product near the equipment which generates strong surge (motor, welding machine, etc.), use diode or varactor to remove surge.
If the surface is rubbed with a hard object, PTFE coating can be worn out.
This unit may be used in the following environments.
– Indoors (in the environment condition rated in ‘Specifications’)
– Altitude max. 2,000 m
– Pollution degree 2
– Installation category II

Cautions for Installation

Install the unit correctly with the usage environment, location, and the designated specifications.
Do NOT impacts with a hard object or excessive bending of the wire lead-out. It may cause damage the water resistance.
Do NOT pull the Ø 3.5 mm cable with a tensile strength of 25 N, the Ø 4 mm cable with a tensile strength of 30 N or over and the Ø 5 mm cable with a tensile strength of 50 Neor over. It may result in fire due to the broken wire.
When extending wire, use AWG 22 cable or over within 200 m.

Ordering Information

This is only for reference, the actual product does not support all combinations. For selecting the specified model, follow the Auto nics website.

Characteristic
No mark: General type
A: Spatter-resistant type
Connection
No mark: Cable type
W: Cable connector type
CM: Connector type
DIA. of sensing side
Number: DIA. of sensing side (unit: mm)
Sensing distance
Number: Sensing distance (unit: mm)
Power supply
D: 12 – 24 VDC
X: 12 – 24 VDC (non-polarity)
Control output
O: Normally open
C: Normally closed
Cable
No mark: Standard type
I: Standard type (IEC standards)
V: Oil resistant cable type
IV: Oil resistant cable type (IEC standards)

Connections

LOAD can be wired to any direction.
Connect LOAD before suppling the power.
No need to consider polarity for non-polarity type of power supply.

■ Cable type

Cable connector type / Connector type

For LOAD connection, follow the cable type connection.
Fasten the connector not to shown the thread. (0.39 to 0.49 N m)
Fasten the vibration part with PTFE tape.

Standard type

Pin| Color| Func.
①| –| –
②| –| –
③| Blue| 0 V
④| Brown| +V
IEC standards

Pin| Normally open| Normally close
Color| Func| Color| Func
①| Brown| +V| Brown| +V
②| –| –| Blue| 0 V
③| –| –| –| –
④| Blue| 0 V| –| –

■ Inner circuit

$Autonics PR Series $DC 2-wire$ Cylindrical Inductive Proximity Sensors - Fig 2$

Operation Timing Chart

| Normally open| Normally closed
---|---|---
Sensing target| Presence
Nothing| Presence
Nothing
**Load| Operation
Return| Operation
Return
Operation indicator (red)**| ON
OFF| ON
OFF

Sold Separately

Connector cable, connector connection cable
Transmission coupler
Spatter protection cover
Fixed bracket

Specifications

Installation	Flush type
General	PR□T08-1.5 ▭

PR□T30-10 ▭
Spatter- resistant| –| P R A□T12-2 ▭| P R A□T18-5 ▭| PR A□T30-10 ▭
DIA. of sensing side| Ø 8 mm| Ø12 mm| Ø18 mm| Ø30 mm
Sensing distance| 1.5 mm| 2 mm| 5 mm| 10mm
Setting distance| 0 to 1.05 mm| 0 to 1.4 mm| 0 to 3.5 mm| 0 to 7 mm
Hysteresis| ≤ 10 % of sensing distance (DIA. of sensing side Ø 8 mm connector type: ≤ 15 %)
Standard sensing target: iron| 8 × 8 × 1 mm| 12 × 12 × 1 mm| 18 × 18 × 1 mm| 30 × 30 × 1 mm
Response frequency 01)| 1.5 kHz| 1.5 kHz| 500 Hz| 400 Hz
Affection by temperature| ≤ ± 10 % for sensing distance at ambient temperature 20 ℃ (DIA. of sensing side Ø 8 mm: ≤ ± 20 %)
Indicator| Operation indicator (red)
Approval| | | |
Installation| Non-flush type
---|---
General| PR□T08-2 ▭| PR□T12-4 ▭| PR□T18-8 ▭| PR□T30-15 ▭
DIA. of sensing side| Ø 8 mm| Ø 12 mm| Ø 18 mm| Ø 30 mm
Sensing distance| 2 mm| 4 mm| 8 mm| 15 mm
Setting distance| 0 to 1.4 mm| 0 to 2.8 mm| 0 to 5.6 mm| 0 to 10.5 mm
Hysteresis| ≤ 10 % of sensing distance (DIA. of sensing side Ø 8 mm connector type: ≤ 15 %)
Standard sensing target: iron| 8 × 8 × 1 mm| 12 × 12 × 1 mm| 25 × 25 × 1 mm| 45 × 45 × 1 mm
Response frequency 01)| 1.0 kHz| 500 Hz| 350 Hz| 200 Hz
Affection by temperature| ≤ ± 10 % for sensing distance at ambient temperature 20 ℃ (DIA. of sensing side Ø 8 mm: ≤ ± 20 %)
Indicator| Operation indicator (red)
Approval| | | |

The response frequency is the average value. The standard sensing target is used and the width is set as
times of the standard sensing target, 1/2 of the sensing distance for the distance.

Unit weight (package)| o 8 mm| o 12 mm| o 18 mm| o 30 mm
---|---|---|---|---
Cable| ≈ 52 g (≈ 64 g)| ≈ 72 g (≈ 84 g)| ≈ 110 g (≈ 122 g)| ≈ 170 g (≈ 207 g)
Cable connector| ≈ 32 g (≈ 44 g)| ≈ 42 g (≈ 54 g)| ≈ 58 g (≈ 70 g)| ≈ 122 g (≈ 134 g)
Connector| ≈ 10 g (≈ 32 g)| ≈ 26 g (≈ 38 g)| ≈ 49 g (≈ 61 g)| ≈ 142 g (≈ 154 g)01)

Spatter-resistant type: ≈ 134 g (≈ 146 g)

Power supply| 12 – 24 VDCᜡ (ripple P-P: ≤ 10 %), operating voltage: 10 – 30 VDCᜡ
---|---
Leakage current| ≤ 0.6 mA
Control output| 2 to 100 mA
Residual voltage| ≤ 3.5 V (non-polarity 01): ≤ 5 V)
Protection circuit| Surge protection circuit, output short over current protection circuit, reverse polarity protection
Insulation resistance| ≥ 50 MΩ (500 VDCᜡ megger)
Dielectric strength| 1,500 VACᜠ 50 / 60 Hz for 1 min (between all terminals and case)
Vibration| 1 mm double amplitude at frequency 10 to 55 Hz (for 1 min) in each X, Y, Z direction for 2 hours
Shock| 500 m/s² (≈ 50 G)in each X, Y, Z direction for 3 times
Ambient temperature| -25 to 70 ℃, storage: -30 to 80 ℃ (no freezing or condensation)
Ambient humidity| 35 to 95 %RH, storage: 35 to 95 %RH (no freezing or condensation)
Protection structure| IP67 (IEC standards)
Connection| Cable type / Cable connector type / Connector type model
Cable spec. 02)| DIA. of sensing side Ø 8 mm: Ø 3.5 mm, 2-wire DIA. of sensing side Ø 12 mm: Ø 4 mm, 2-wire
DIA. of sensing side Ø 18 mm, Ø 30 mm: Ø 5 mm, 2-wire
Wire spec.| Ø 3.5 mm cable : AWG 24 (0.08 mm, 40-core), insulator diameter: Ø 1 mm Ø 4 mm, Ø 5 mm cable : AWG 22 (0.08 mm, 60-core), insulator diameter: Ø 1.25 mm
Connector spec.| M12 connector
Material| Standard type cable (black): polyvinyl chloride (PVC)
Oil resistant cable type cable (gray): polyvinyl chloride (oil resistant PVC)
General| Case/Nut: nickel plated brass (DIA. of sensing side Ø 8 mm connector type case: SUS303), washer: nickel plated iron, sensing side: PBT
Spatter-resistant| Case/Nut: PTFE coated brass, washer: PTFE coated iron, sensing side: PTFE

Check the condition of connected device.
Cable type: 2 m, cable connector type: 300 mm

Cut-out Dimensions

Unit: mm, For the detailed drawings, follow the Auto nics web site.

| o 8 mm| o 12 mm| o 18 mm| o 30 mm
---|---|---|---|---
Mounting hole (H)| Ø 8.5 +0.50| Ø 12.5 +0.50| Ø 18.5 +0.50| Ø 30.5 +0.50
TAP| M8×1| M12×1| M18×1| M30×1.5

| o 8 mm| o 12 mm| o 18 mm| o 30 mm
---|---|---|---|---
ØA| 15| 21| 29| 42
B| 13| 17| 24| 35

Setting Distance Formula
Detecting distance can be changed by the shape, size or material of the target. For stable sensing, install the unit within the 70 % of sensing distance.

$Autonics PR Series $DC 2-wire$ Cylindrical Inductive Proximity Sensors - Fig 7$

Setting distance (Sa) = Sensing distance (Sn) × 70 %

Mutual-interference & Influence by Surrounding Metals

Mutual-interference
When plural proximity sensors are mounted in a close row, malfunction of sensor may be caused due to mutual interference.
Therefore, be sure to provide a minimum distance between the two sensors, as below table.

$Autonics PR Series $DC 2-wire$ Cylindrical Inductive Proximity Sensors - Fig 83$

Influence by surrounding metals
When sensors are mounted on metallic panel, it must be prevented sensors from being affected by any metallic object except target. Therefore, be sure to provide a minimum
distance as below chart.

$Autonics PR Series $DC 2-wire$ Cylindrical Inductive Proximity Sensors - Fig 9$

Sensing side
Item| o 8 mm| o 12 mm| o 18 mm| o 30 mm
---|---|---|---|---
Flush| Non- flush| Flush| Non- flush| Flush| Non- flush| Flush| Non- flush
A| 9| 12| 12| 24| 30| 48| 60| 90
B| 16| 24| 24| 36| 36| 54| 60| 90
ℓ| 0| 8| 0| 11| 0| 14| 0| 15
Ød| 8| 24| 12| 36| 18| 54| 30| 90
m| 4.5| 6| 6| 12| 15| 24| 30| 45
n| 12| 24| 18| 36| 27| 54| 45| 90

Tightening Torque
Use the provided washer to tighten the nuts.
The tightening torque of the nut varies with the distance from the fore-end. [Figure 1] If the nut tip is located at the front of the product, apply the front tightening torque.
the allowable tightening torque table is for inserting the washer as [Figure 2].

$Autonics PR Series $DC 2-wire$ Cylindrical Inductive Proximity Sensors - Fig 10$

Sensing side Strength| o 8 mm| o 12 mm| o 18 mm| o 30 mm
---|---|---|---|---
Flush| Non- flush| Flush| Non- lush| Flush| Non- flush| Flush| Non- lush
Front size| 7 mm| 5 mm| 13 mm| 7 mm| –| –| 26 mm| 12 mm
Front torque| 3.92 N m| 6.37 N m| 14.7 N m| 49 N m
Rear torque| 8.82 N m| 11.76 N m| 14.7 N m| 78.4 N m

Sensing Distance Feature Data by Target Material and Size

Flush+General type

$Autonics PR Series $DC 2-wire$ Cylindrical Inductive Proximity Sensors - Fig 11$ | $Autonics PR Series $DC 2-wire$ Cylindrical Inductive Proximity Sensors - Fig 12$
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