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NAMUR Intrinsically Safe DC Sensors
• Intrinsically safe sensors with MINI-BEAM performance and small size
• For use with approved switching amplifiers with intrinsically safe input circuits
• Output 1 mA or less in the dark and 2 mA or more in the light
• Models with integral cable or quick-disconnect
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.
Models
Model 1 Sensing Mode Sensing Beam Sensing Range Output Type
MI9E Emitter
Opposed Infrared, 880 nm Range: 6 m (20 ft)
Constant Current
≤ 1.2 mA dark
≥ 2.1 mA light
MIAD9R Receiver
MIAD9LVAG Polarized Retroreflective Visible red, 650 nm 50 mm to 2 m (2 in to 7 ft)
MIAD9LV Retroreflective Visible red, 650 nm 5 m (16.4 ft)
MIAD9D Diffuse Infrared, 880 nm 380 mm (15 in)
MIAD9W Divergent Diffuse Infrared, 880 nm 75 mm (3 in)
MIAD9CV
Convergent Visible red, 650 nm
16 mm (0.6 in)
MIAD9CV2 43 mm (1.7 in)
Fiber Optic (Glass) MIAD9F Infrared, 880 nm Range varies by sensing mode
and fiber optics used
Overview
MIAD9 Series NAMUR Sensors are small, rugged, self-contained two-wire sensors designed for use with approved
switching amplifiers with intrinsically safe input circuits. MIAD9 Series sensors are designed in accordance with DIN 19
234.
These sensors vary the impedance across the sensor output, which passes 1 mA or less in the “dark” condition and 2
mA or more in the “light”condition. A red LED on the rear of the sensor lights whenever the sensor sees the “light”
condition. A rugged, clutched, 15-turn slotted brass screw Gain control potentiometer enables precise adjustment of
system sensitivity.
Models are available with either a 2 m (6.5 ft) or 10 m (30 ft) long attached PVC-covered cable, or a 4-pin Euro-style
quick disconnect (QD) connector. Quick disconnect models (with “Q” in the model number suffix) use MQD9-4.. mating
cable (either straight or right angle connector; see
Quick-Disconnect (QD) Cables on page 7). Contact Banner Engi-
neering for availability of sensor models with 10 m (30 ft) long attached cable.
NOTE: If sensors with output characteristics according to DIN 19 234 are used in
hazardous areas, they must be used with approved switching amplifiers with intrinsi-
cally safe input circuits.
Gain
Adjustment
Blue (2)
Brown (1)
No
Connection
No
Connection
LED
Indicator
Figure 1. Features (rear of sensor, quick-
disconnect model shown)
Special Conditions for Safe Use
Parts of the enclosure are non-conducting and may generate an ignition-capable level of ESD. Cleaning of the equipment shall be done only with a damp cloth.
1 Only standard 2 m (6.5' ft cable models are listed. For 4-pin Euro-style Integral QD models: add suffix “Q” to the model number (for example, MIAD9RQ); accesso-
ry mating cable required, see
Quick-Disconnect (QD) Cables on page 7.
MINI-BEAM® MIAD9 Series
P/N 39616_web Rev. I 6/7/2013