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ISG-N138 amplifier
PANTRONISG-N138 series11-pole DIN plug

ISG-N138

The ISG-N138 is the most feature-rich model in this ISG group. It combines sensor control, relay and NPN transistor switching, alarm output, selectable switching behavior and frequency, and an adjustable 0 ... 10 second switching delay.

Up to 55 m range Sensor control 0 ... 10 s delay Relay + NPN transistor Alarm output 16 / 70 ms reaction

Key Features

  • Sensor control with transmitter and receiver error indication.
  • Adjustable sensitivity and selectable low / high basic transmit level.
  • Selectable light / dark switching behavior and four frequencies.
  • Relay change-over output plus NPN transistor switching output.
  • Separate alarm output for monitored system status.
  • Adjustable 0 ... 10 second switching delay.

Best Fit Applications

  • Critical supervised sensing points that need delayed switching.
  • Machine and process systems that use both relay and transistor signals.
  • Long-range optical applications exposed to contamination or washdown.
  • Installations where transmitter / receiver error monitoring is important.

Catalog source: Pantron catalog pages 21-25, depending on model. Values shown here follow the published catalog page for this specific amplifier variant.

Technical Specifications

Operating voltageSee order code table
Operating basisModulated infrared light
Transmit frequency3.0 / 3.3 / 3.7 / 4.0 kHz
Transmit powerManual
Basic transmit levelLow / High
Switching behaviourLight / Dark
Switching delay0 ... 10 s
Housing materialPlastic
Relay outputChange over, 5 A / 230 V AC (24 V DC)
Transistor outputNPN, 100 mA / 30 V DC
Reaction time16 ms (low) / 70 ms (high)
Alarm outputAC: NPN / DC: NPN / PNP, 100 mA / 30 V DC
Test input-
Connection11-pole DIN-plug
Protection classIP40 (EN 60529)
Dimensions40 x 76.5 x 80 mm

Order Codes by Supply Voltage

SupplyOrder code
230 V AC / ±10% / 3.8 VAISG-N138/230VAC
115 V AC / ±10% / 3.8 VAISG-N138/115VAC
24 V AC / ±10% / 3.8 VAISG-N138/24VAC
24 V DC / ±20% / 2.0 WISG-N138/24VDC

Accessories listed in the catalog for this family include PanBox 1x1 protective enclosure, ISO1 11-pole DIN socket, and RTC 11 retaining clip.

Maximum Through-Beam Range

Transmitter familyReceiver IRL-...Receiver IR-...
Transmitter IT-..., ITL-...10 m20 m
Transmitter IT-...HP, ITH-...20 m35 m
Transmitter ITA-...35 m55 m

Maximum range depends on the selected Pantron transmitter / receiver pair and installation conditions.

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