Banner VALU-BEAM SMI912 Series—Intrinsically Safe - Manual (Page 2)

Sensing Mode Models Range Voltage
Glass fiber optic, 880 nm Infrared
SMI912EFQD Emitter
SMI912RFQD Receiver
GLASS FIBER
Glass fiber optic, 880 nm Infrared SMI912FQD
WARNING: Not To Be Used for Personnel Protection
Never use this device as a sensing device for personnel protection. Doing so could lead to serious
injury or death. This device does NOT include the self-checking redundant circuitry necessary to allow its
use in personnel safety applications. A sensor failure or malfunction can cause either an energized or de-
energized sensor output condition.
Overview
VALU-BEAM SMI912 Series sensors are designed for intrinsically safe operation in hazardous atmospheres. They are certified by Facto-
ry Mutual Research, CSA, and KEMA as being intrinsically safe when used with approved intrinsic safety barriers.
SMI912 Series sensors may be wired for either two- or three-wire current-sinking operation. In the three-wire hookup, which requires two
intrinsic-safety barriers, the sink current is 15 mA. The two-wire hookup, which requires one barrier, sinks ≤ 10 mA (OFF state) and ≥ 20
mA (ON state).
AID
Current
Sense
AID
Current
Sense
27
Ohms
Brown
Black
Blue
Common
Output
+10 to 30V dc
36V
Oscillator
Amp
Receiver
Emitter
Sens.
Demodulator
Regulator
D.0.
L.0.
SMI912 Series sensors feature rugged, encapsulated construction, along with adjustable sensitivity and switchable light or dark operate.
They also include Banner's exclusive Alignment Indicating Device system, which lights an indicator LED whenever the sensor “sees” its
modulated light source, and pulses at a rate proportional to the received light signal strength.
Intrinsic safety barriers and current trip point amplifier model CI3RC2 are also available (see Accessories).
Installation Notes
WARNING: Explosion Hazard
Do not disconnect equipment unless power has been switched off or the area is known to be non-hazard-
ous.
FM Installation
1. Barriers must be installed in accordance with manufacturer's instructions.
2. Barrier entity parameters must meet the following requirements:
VALU-BEAM SMI912 Series
2 www.bannerengineering.com - tel: 763-544-3164 P/N 03396 Rev. K