Owner manual

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Specifications - DC Models

Supply Voltage and Current

10 to 30V dc at 20 mA maximum, exclusive of load;

except for SMA91E, ESR and EF emitters, which oper-

ate from 10 to 250V ac or dc

Supply Protection Circuitry

Protected against reverse polarity and transient voltag-

Output Configuration

Bipolar: One current sourcing (PNP) and one current

sinking (NPN) open-collector transistor

Output Rating

250 mA continuous, each output

Off-state leakage current: less than 10 microamps

Output saturation voltage: (PNP output) less than 1

volt at 10 mA and less than 2 volts at 250 mA

Output saturation voltage: (NPN output) less than

200 millivolts at 10 mA and less than 1 volt at 250 mA

Output Response Time

Receivers only: 8 milliseconds ON and 4 milliseconds

OFF, independent of signal strength.

All other models: 4 milliseconds ON/OFF

NOTE: millisecond delay on power-up; outputs do not

conduct during this delay.

Repeatability

Opposed and Glass Fiber Optic Emitter-Receiver

pairs: 1.0 millisecond

Retro, Diffuse, Convergent and Glass Fiber Optic

Models: 1.3 milliseconds

Adjustments

Light/Dark Operate select switch and Sensitivity control

potentiometer, both located at rear of sensor

Indicators

Alignment Indicating Device (AID™) lights a top-moun-

ted red LED indicator whenever the sensor sees a

“light” condition; its pulse rate is proportional to the light

signal strength (the stronger the signal, the faster the

pulse rate).

Model SMA91E and SM91ESR emitters: visible-red

“tracer beam” indicates “Power ON” and enables line-

of-sight alignment.

Construction

Reinforced thermoplastic polyester housing, totally en-

capsulated, molded acrylic lenses and stainless steel

hardware

Environmental Rating

Meets NEMA standards 1, 2, 3, 3S, 4, 4X, 12 and 13

IEC IP66

Connections

PVC-jacketed 2 m (6.5') or 9 m (30') cables or 4-pin

Mini-style quick-disconnect (QD) fitting available.

NOTE: Opposed-mode emitters use 3-pin Mini-style

QD fitting. See Quick-Disconnect Cables on page 10.

Operating Conditions

Temperature: -20° to +70° C (-4° to +158° F)

Maximum relative humidity: 90% at 50° C (non-con-

densing)

Certifications

DC Hookups

Emitters - Cabled Emitters - QD (3-Pin Mini-Style)

3-Pin Mini-Style Pinout (Cable Connector

Shown)

–

10-250V ac/dc

–

1 = Black

2 = Brown

3 = Blue

VALU-BEAM® 912 Series

P/N 03467_web

Rev. F