IRS - Infrared Optical Sensor
SAFEGUARDS AND PRECAUTIONS:
Read and follow all instructions in this instruction sheet carefully, and retain this sheet for future reference.
Do not use this instrument in any manner inconsistent with these operating instructions or under any
conditions that exceed the environmental specifications stated.
This instrument is not user serviceable. For technical assistance, contact the sales organization from
which you purchased the product.
SPECIFICATIONS:
Speed Range: 1-1,000,000 RPM
Illumination: Infrared LED (not visible)
On-Target Indicator: Green LED on wire end cap
Target: Contrasting colors or beam interrupt
Operating Range: up to 0.5 inch [12 mm] from target
Power Requirement: 3.3 - 15 Vdc @ 40mA
Output Signal: Negative pulse input voltage (+V) to 0
Operating Temp.: -40° to 185° F [-40° to 85° C]
Humidity: Maximum relative humidity 80% for temperature up to 88 °F [31 °C] decreasing linearly to 50%
relative humidity at 104 °F [40 °C], humidity must be non-condensing
Connection: 3.5 mm [1/8 inch] male stereo plug (IRS-P); Tinned wires (IRS-W)
Cable Length: 8 feet [2.4 m]
Material: 303 Stainless Steel tube supplied with Mounting Bracket and two M16 Jam Nuts
Dimensions: Threaded Tube 2.90 in x 0.62 in diameter [M16 x 1.5 x 74 mm] long
OVERVIEW:
The Infrared Optical Sensor has an invisible infrared light source that is ideal for working up to 0.5 inch (12 mm) from high-
speed equipment or other applications providing only contrasting light and dark surfaces or beam interruption by solid
objects as small as 0.039 inch [1 mm]. The sensor is housed in a threaded 303 stainless steel tube and supplied with a 90
degree angle aluminum-mounting bracket and two M16 jam nuts. The IRS is supplied with an 8 foot [2.4 m] cable terminated
with a 1/8 inch [3.5 mm] male stereo plug (IRS-P) or 4 tinned wires (IRS-W). An optional 25 foot [7.6 mm] extension cable
EC-25P is available with a female socket for the plug on one end, and a 1/8 inch [3.5 mm] male stereo plug on the other.
The IRS-P will work directly with all Monarch Tachometers (PLT200), Deluxe Nova-Strobes (dax, dbx, DBL) and Phaser
Strobes (pbx, PBL). The IRS-W will work with all Monarch panel instruments that accept pulse inputs (e.g. ACT Series,
DataChart 1250, DataChart 6000). A sensor power supply (SPSR-IM) with BNC output is available for those applications
that require a separate power source for the sensor.
0.62” [15.9mm] 2.90” [74.0mm]
CONNECTION DETAIL for Plug (IRS-P):
CONNECTION DETAIL for Tinned Wires (IRS-W):
Wire Color Function Connect to
Brown Positive Power Excitation (+V)
Blue Common (Com)
Black Signal (+V to 0 Vdc Pulse) (Sig)
Shield Housing Ground (Com) or (Gnd)
Middle (+V) Excitation- Brown
Tip (Signal) - Black
Base (Common) - Blue
Shield (Common)
(continues on back)
Monarch Instrument
15 Columbia Drive
Amherst, NH 03031 USA
Phone: (603) 883-3390
Fax: (603) 886-3300
Website: www.monarchinstrument.com
(2 pages)
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