PANTRONISG-A123Transistor output

ISG-A123

The ISG-A123 adds more front-end configuration than the A113 family, including 4-step basic transmit level selection, selectable light / dark switching, selectable transmit frequency, and a test input for system checks. Its main switching output is transistor-based with NPN / PNP option.

Datasheet PDF Operating Guide PDF

Up to 50 m range3.7 / 4.1 kHzTest inputLow / High levelsLight / DarkNPN / PNP transistor

Key Features

Automatic transmit power adjustment.
Test function for system check and reset workflow.
Basic transmit level selectable as low1 / low2 / high1 / high2.
Switching behaviour selectable between light and dark.
Transmit frequency selectable between 3.7 kHz and 4.1 kHz.
Alarm output plus NPN / PNP transistor switching output.

Best Fit Applications

Optical sensing installations that need more configuration flexibility than fixed-mode amplifiers.
Harsh industrial environments with varying contamination levels and signal margins.
Control panels using transistor outputs and remote test input functionality.
Retrofit projects that benefit from selectable frequency and switching behaviour.

This model was created from Pantron catalog pages 26-29 within the ISG-series automatic amplifier family. It shares the same through-beam range table and enclosure format as its paired companion model, ISG-A124.

Technical Specifications

Channels	1
Operating voltage	See order table
Operating basis	Modulated infrared light
Transmit frequency	3.7 kHz / 4.1 kHz
Transmit power	Automatic
Basic transmit level	low1 / low2 / high1 / high2
Switching behaviour	Light / Dark
Switching delay	-
Multiplex speed	-
Primary / Secondary operation	-
Teach function	-

Switching output	Transistor, NPN / PNP
Output rating	100 mA / 30 V DC
Reaction time	25 ms / 52 ms (low / high)
Alarm output	PNP
Alarm output rating ...AC	5 mA / 24 V DC
Alarm output rating ...DC	100 mA / 24 V DC
Test input	0 ... 30 V DC
Analog output	-
COM interface	-
Housing material	Plastic
Protection class	IP40 (EN 60529)
Connection	11-pole DIN-plug
Operating temperature	-25 C ... 50 C
Dimensions	40 x 76.5 x 78.5 mm

Purchase Order Table

Operating voltage	Order code
230 V AC / +-10% / 4.1 VA	ISG-A123/230VAC
115 V AC / +-10% / 4.1 VA	ISG-A123/115VAC
24 V AC / +-10% / 4.1 VA	ISG-A123/24VAC
24 V DC / +-20% / 1.9 W	ISG-A123/24VDC

Accessories shown on the catalog page: PanBox 1x1 protective enclosure, ISO1 11-pole DIN-socket, and RTC 11 retaining clip.

Amplifier Mode Configuration

Profile	1	2	3	4
high2	ON	ON	dark / ON	4.1 kHz / ON
high1	ON	OFF	dark / ON	frequency selectable
low2	OFF	ON	light / OFF	frequency selectable
low1	OFF	OFF	light / OFF	3.7 kHz / OFF

Catalog page 27 shows the factory setting highlighted in white. The relay-output companion product is ISG-A124.

Compatible Sensor Pairs and Maximum Through-Beam Range

Transmitter family	With receiver IRL-...	With receiver IR-...	Typical use note
IT-..., ITL-...	7 m	15 m	Compact standard option
IT-...HP, ITH-...	10 m	25 m	Higher power range extension
ITA-...	20 m	50 m	Longest stated range for this family

Maximum range values are taken directly from the corresponding ISG-series catalog pages for these automatic one-channel amplifiers.