SMI30 Series—Intrinsically Safe
Overview
- Extremely rugged and powerful opposed-mode intrinsically safe barrel sensors are designed for the most demanding hazardous area sensing applications.
- Sensor requires an approved intrinsic safety barrier and Banner MAXI-AMP model CI3RC2 current trip point amplifier
- Sensor is certified as intrinsically safe for use in all hazardous atmospheres as defined by Article 500 of the National Electrical Code, when used with approved "positive input" intrinsic safety barriers.
- Sensor is certified by Factory Mutual and CSA as non-incendive devices when used in Division 2 locations (except Groups E and F) without intrinsic safety barriers.
- 10 millisecond sensor pairs have a 140 m range; 1 millisecond pairs have a 60 m range.
- Modulation frequency "A" is standard; frequencies "B" and "C" are also available to minimize optical crosstalk from adjacent sensor pairs.
Product Specifications
| Supply Voltage and Current | Emitters:10 to 30V dc @ 25 mA Receivers:10 to 30V dc @ less than 15 mA. Division 1 use, with barriers, requires minimum system supply voltage of 10V. |
|---|---|
| Range | Opposed (10 millisecond response):140 m Opposed (1 millisecond response):60 m |
| Output Configuration | Receivers:NPN (current sinking); light operate (LO) or dark operate (DO), depending on model |
| Output Rating | Three-wire hookup sinks 15 mA max. continuous, 10 to 30V dc. Two-wire hookup sinks 10 mA max. |
| Output Protection Circuitry | Outputs are short circuit protected |
| Output Response Time | 10 milliseconds ON/OFF or 1 millisecond ON/OFF, depending on model. Response time is independent of signal strength. |
| Repeatability | Repeatability is independent of signal strength.
Frequency A Units: 10 millisecond response:1 milliseconds
1 millisecond response:360 microseconds
Frequency B Units:1.6 millisecondsFrequency C Units: 10 millisecond response:2.3 milliseconds
1 millisecond response:210 microseconds
|
| Indicators | Internal red LED, visible through the lens or from side of the sensor.
Emitters (1 LED Indicator): Red ON steady:power to sensor is ON
Receiver (1 LED Indicator):Red:Lights whenever receiver sees its modulated light source
|
| Construction | 30 mm diameter thermoplastic polyester housing, fully epoxy-encapsulated, positive sealed at both ends, quad-ring sealed acrylic lens. Two thermoplastic polyester jam nuts are included with each sensor. |
| Environmental Rating | Exceeds NEMA 6P; IEC IP67 standards |
| Connections | 3-pin Mini-style quick-disconnect fitting. QD cables are ordered separately.
Cable electric properties:40 pf/ft; 20 µH/ft. |
| Operating Conditions | Temperature:-40° to +70° C Relative humidity:90% @ 50° C (non-condensing) |
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