Specifications are subject to change without notice (25.06.99) 1
Housing Ordering no. Ordering no. Ordering no.
W x H x D Receiver without timer Receiver with timer Emitter
25 x 65 x 81
PG 13.5 cable gland PMT 20R G PMT 20R GT PMT 20 G
1/2" NPT cable gland PMT 20R I PMT 20R IT PMT 20 I
Photoelectrics
• Range: 20 m
• Adjustable sensitivity
• Modulated, infrared light
• Make or break switching function (switch selectable)
• LED-indication for power supply ON (emitter)
and target detected (receiver)
• Multi supply voltage:
12 to 240 VDC and
24 to 240 VAC, 50/60 Hz
• 25 x 65 x 81 mm reinforced PC housing, IP 67
• Timer options (adjustable)
• NO and NC output
Product Description Ordering Key
Through-beam photoelectric
switch. Range up to 20 m.
Adjustable sensitivity. Immune
to ambient light. Precise de-
tection through narrow beam.
LED-indication. Output func-
tion switch selectable. Relay
output (NO/NC). Protection
degree IP 67. Screw terminal
connection. 25 x 65 x 81 mm
plastic housing. PG 13.5 or
1/2" NPT cable gland. Timer
options: Delay on operate,
delay on release, one shot
(triggered on leading or trail-
ing edge).
Type
Receiver
Cable gland
Option: Timer function
Type Selection
Specifications Emitter Specifications Receiver
Rated operational volt. (U
B
)
10.8 to 264 VDC
AC: 45 to 65 Hz 21.6 to 264 VAC
Rated operational power ≤2 W (2.5 VA)
Light source GaAIAs LED, 880 nm
Light type Infrared, modulated
Optical angle ±2°
Indication
Power supply ON LED, green
Rated operational volt. (UB) 10.8 to 264 VDC
AC: 45 to 65 Hz 21.6 to 264 VAC
Rated operational power
(Relay ON) ≤2 W (2.5 VA)
Output
Contact ratings (AgCdO) µ (micro gap)
Resistive loads AC 1 3 A/250 VAC
DC 1 3 A/30 VDC
Small inductive loads AC 15 2 A/250 VAC
DC 13 3 A/30 VDC
Mechanical life ≥40 x 106operations
Electrical life ≥5 x 105operations
at 220 VAC - 3 A resistive
load: 360 impulses/h
Dielectric voltage
2 kVAC
(rms)
(cont./supply)
Sensitivity Adjustable, single turn pot.
Optical angle ±2°
Rated operating dist. (Sn)
(0 to 5,000 lux) 20 m
Operating frequency (f) 20 Hz
Response time OFF-ON (tON)≤20 ms
ON-OFF (tOFF)≤20 ms
Through-beam
Type PMT
PMT20 R G T
2Specifications are subject to change without notice (25.06.99)
PMT
Specifications Receiver (cont.) Connection Diagram
Power ON delay ( tv)≤300 ms (typ. 100 ms)
Output function Switch selectable, make or
break switching
Indication
Target detected (make swit.) LED, yellow
Target not detected (break swit.) LED, yellow
Optional timer
Delay on operate 0.1 to 7 s ± 2 s
Delay on release 0.1 to 7 s ± 2 s
One shot 0.1 to 7 s ± 2 s
Time adjustment
(optional)
LED
DIP switches
12 - 240 VDC
24 - 240 VAC
50/60 Hz
30 VDC
250 VAC
Max. 3 A
Sensitivity
adjustment
Switch
1 2 3
PMT 20R .
PMT 20R .T
1 Break switching
9 One shot, leading edge -
Break switching
8 One shot, trailing edge -
Make switching
7 One shot, trailing edge -
Break switching
5 Delay on release -
Break switching
3 Delay on operate -
Break switching
10 One shot, leading edge -
Make switching
2 Make switching
4 Delay on operate -
Make switching
6 Delay on release -
Make switching
Don't care
Upper postion ON (Mode 1)
Lower position OFF (Mode 0)
Selection of Function
Truth Table
Load Non- Active Active Non-
active active
Object present Yes No Yes No
LED OFF ON OFF ON
Make switching Break switching
General Specifications
Environment
Overvoltage category III (IEC 60664/60664A,
60947-1)
Pollution degree 3 (IEC 60664/60664A,
60947-1)
Degree of protection IP 67 (IEC 60529, 60947-1)
Temperature
Operating
-25° to +55°C (-13° to +131°F)
Storage
-30° to +80°C (-22° to +176°F)
Vibration 10 to 150 Hz, 0.5 mm/7.5 g
(IEC 60068-2-6)
Shock 2 x 1 m & 100 x 0.5 m
(IEC 60068-2-32)
Rated insulation voltage 250 VAC (rms)
Housing material
Body PC, grey, reinforced
Front PC, black
Cover PC, black
Cable gland PA, black, reinforced
Mounting bracket Steel, black
Connection
Screw terminal 5 x 2 x 1 mm2
Cable gland PG 13.5 or 1/2" NPT
for cable 6 to 10 mm
Weight
Emitter 110 g
Receiver 115 g
Approvals UL, CSA
CE-marking Yes
Specifications are subject to change without notice (25.06.99) 3
PMT
Accessories
•MB02 (longer mounting bracket), please refer to "Acces-
sories"
Delivery Contents
•Photoelectric switch: PMT 20
•Cable gland
•Installation instruction
•Mounting bracket
• Packaging: Corrugated cardboard (environmentally
friendly recycling material)
Power supply
Target present
Object present
Operation Diagram
Dimensions
t = Time delay
tv = Power ON delay
Func 1. Output ON
Func 2. Output ON
Func 3. Output ON
Func 4. Output ON
Func 5. Output ON
Func 6. Output ON
Func 7. Output ON
Func 8. Output ON
Func 9. Output ON
Func 10. Output ON
PMT 20 PMT 20 with angle bracket
or 1/2" NPT
