picture ISM-1510


  • Single channel opto sensor
  • Detection range up to 70 m (230 ft)
  • Manual sensitivity setting
  • Supply voltage 24 V AC / DC
  • Relay output (ISM-1510) or semiconductor relay output (ISM-1515)
  • Transmitter and receiver connections are short-circuit proof
  • Plug-connections
  • Mounting for DIN rail

Product description

ISM-1500 series optosensors are cost-efficient devices for simple light barrier applications. In consequence of the standard size of 22,5 mm, the low profile and the plug-in connections these devices are easy to mount and space-saving.

The amplifiers are used for detecting objects in machines or production facilities. The whole system consists of one amplifier combined with infrared transmitter and receiver. It is characterised by its long detection range and extreme dirt resistance where traditional photo-electric light barriers reach their limits. Modulated light is the reason for additional safety regarding external light, interfering impulses and other light barriers.

Power settings can be changed by potentiometer and controlled by a green gain LED. The status of light pathway is reported via potential-free switching output to units downstream such as a SPS.

Technical Specifications

Number of channels


Range (using transmitter ITL combined with receiver IRL / IRH)

20 m / 25 m (66 ft / 82 ft)

Range (using transmitter ITH combined with receiver IRL / IRH)

30 m / 35 m (98 ft / 115 ft)

Range (using transmitter ITA combined with receiver IRL / IRH)

50 m / 70 m (164 ft / 230 ft)

Operating mode


Transmit frequency

4,0 kHz

Switching outputs ISM-1510

Potential-free normally open contact (relay), 250 V AC / 24 V DC, 5 A

Switching outputs ISM-1515

Potential-free normally open contact (semiconductor relay), short-circuit proof, 60 V AC / DC, 100 mA

Response time

36 ms

Supply voltage

24 V AC / DC

Ordering Information


Order code



Semiconductor relay



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Datasheet German

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Datasheet English

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