Banner VALU-BEAM SMI912 Series—Intrinsically Safe - Manual (Page 3)

• Voc or Vt ≤ Vmax Ca ≥ Ci + Ccable
• Isc or It ≤ I max La ≥ Li + Lcable
3. Maximum non-hazardous area voltage must not exceed 250V.
4. For guidance on installation, see ANSI/ISA RP12.6, “Installation of Intrinsically Safe Instrument Systems for Hazardous (Classified)
Locations.”
5. The sensors are suitable for installation without barriers in Class I Div. 2 Groups A, B, C, D; Class II Div. 2 Group G; and Class III Div.
2, when installed in (or through the wall of) a suitable enclosure with provision for connection of rigid metal conduit per the National
Electrical Code, as acceptable to the local inspection authority having jurisdiction.
CSA Installation
1. Barriers must be installed in accordance with manufacturer's instructions.
2. Barrier entity parameters must meet the following requirements:
• Voc ≤ Vmax Ca ≥ Ci + Ccable
• Isc ≤ I max La ≥ Li + Lcable
3. Maximum non-hazardous area voltage must not exceed 250V.
4. Install in accordance with Canadian Electrical Code, Part I.
5. The sensors are suitable for installation without barriers in Class I Div. 2 Groups A, B, C, D when installed in (or through the wall of) a
suitable enclosure with provision for connection of rigid metal conduit per the Canadian Electrical Code, as acceptable to the local inspec-
tion authority having jurisdiction.
In Div. 2 installations (without barriers), observe warning at left.
6. If barriers with Volt/Ohm parameters are used, the following parameters shall apply:
One Single-Channel Barrier Systems
• one 28 V (max), 300 Ω (min)
Two Single-Channel Barrier or One Dual-Channel Systems
• two 28 V (max), 600 Ω (min)
• one 28 V (max), 300 Ω (min) and one 10 V (max), 50 Ω (min)
• one 28 V (max), 300 Ω (min) and one 28 V diode return
Sensor Entity Parameters
• Vmax (Ui) ≤ 30V dc
• Imax (li) ≤ 350 mA
• Pi ≤ 750 mW
• Ci = 0 μF
• Li = 0 mH
Specifications
Supply Voltage and Current
Sensor only: requires 10 to 30V dc, 25 mA maximum
Division 1 use (with barriers): requires a minimum sys-
tem supply voltage of 10 volts (see hookup information
and hookup diagrams).
Sensing Beam
Infrared (880 nm) or visible red (650 nm), depending
on model
Adjustments
Light/Dark Operate select switch on rear of sensor
Sensitivity control on rear of sensor allows precise gain
setting (turn clockwise to increase gain)
Indicators
Output Configuration
Current sinking NPN open-collector transistor
Output Rating
Three-wire hookup sinks 15 mA maximum, continuous
(10 to 30V dc)
Two-wire hookup sinks ≤ 10 mA (OFF state) and ≥ 20
mA (ON state), 10 to 30V dc.
Outputs are short-circuit protected.
Output Response Time
Opposed-mode receivers: 8 milliseconds ON/4 milli-
seconds OFF; independent of signal strength
All other models: 4 milliseconds ON and OFF
100 millisecond delay on power-up (output does not
conduct during this time).
VALU-BEAM SMI912 Series
P/N 03396 Rev. K www.bannerengineering.com - tel: 763-544-3164 3