Monarch Instrument ROS - Manual

Specifications are subject to change without notice. 1071-4854-118R
ROS - Remote Optical Sensor
SPECIFICATIONS:
Speed Range: 1-250,000 RPM Power Requirement: 3.0 - 15 Vdc @ 40mA
Illumination: Visible Red LED Output Signal: Negative pulse input voltage (+V) to 0
Operating Temp.: 14° to 158° F [-10° to 70° C] On-Target Indicator: Green LED on end cap
Operating Range: up to 36” [0.9 m] and 45 degrees from target
Cable Length: ROS-W and ROS-P: 8 feet [2.4 m]; ROS-P-25: 25 feet [7.6 m]
Connection: Tinned wires (ROS-W); 3.5 mm [1/8 inch] male stereo plug (ROS-P, ROS-P-25)
Material: 303 Stainless Steel supplied with two M16 Jam Nuts and Mounting Bracket
Lens: Acrylic Plastic
Dimensions: Threaded Tube 2.90 in x 0.62 in diameter [M16 x 1.5 x 74 mm] long
CONNECTION DETAIL for Tinned Wires (ROS-W) :
Wire Color Function
Brown
Positive Power Supply (+V)
Blue Common (Com)
Black Signal (+V to 0 Vdc Pulse) (Sig)
Shield Housing Ground (Com)
CONNECTION DETAIL for Plug (ROS-P, ROS-P-25) :
OPERATING INSTRUCTIONS:
The ROS Remote Optical Sensor is capable of detecting a reflected pulse from a target consisting of T-5 Reflective Tape
at distances of up to 36 inches [1 m] from the rotating object and angles up to 45 degrees. For most applications, a ½” [12
mm] square piece of Reflective Tape (T-5) should be applied to a clean area on the rotating object.
The ROS should be mounted (using the supplied jam nuts and aluminum mounting bracket) and optically aligned to
illuminate the target once per revolution. The user must hold “steady” or mount the ROS to obtain an accurate
measurement. It is recommended that the optical Sensor be placed at a slight angle (15 degrees) from perpendicular, so
that the Sensor will receive only pulses from the reflective marker. The ROS should be at least 1 inch from the reflective
target to avoid false triggering. The green LED On-Target Indicator will blink at the input frequency rate when the ROS is
properly aimed.
NOTE: The green LED On-Target Indicator will blink on and off at slow speeds and remain on steady at
high speeds.
The ROS is supplied with an 8 foot [2.4 m] cable terminated with 4 tinned wires (ROS-W) or a 3.5 mm [1/8 inch] male
stereo plug (ROS-P) or optionally a 25 foot [7.6 m] cable terminated with a 3.5 mm [1/8 inch] male stereo plug (ROS-P-25).
The plug may be cut from the cable and the leads stripped and connected as shown in connection detail for tinned wire
above. 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 3.5 mm [1/8 inch] male stereo plug on the other.
The ROS-W will work with all Monarch panel instruments that accept pulse inputs (e.g. ACT Series, DataChart 1250). The
ROS-P and ROS-P-25 will work directly with all Monarch Handheld Tachometers, Deluxe Nova-Strobe models (DA+, DB+,
dax, dbx) and Phaser Strobe (PB, pbx) Stroboscopes. A sensor power supply (SPS, SPSR) with BNC output is available
for those applications that require a separate power source for the sensor.
Correct operation of the ROS can be checked at any time by aiming it at an original design fluorescent light and observing
a 120 Hz or 100 Hz (two times your mains frequency) square wave on the signal output. If the sensor is being used with a
tachometer, the tachometer will read 7200 RPM or 6000 RPM. The Sensor will not pick up newer “energy efficient” design
fluorescent lights.
ACCESSORIES:
EC-25P 25 foot [7.6 m] Extension Cable T-5 Reflective Tape - 5 foot [1.5 m] roll
ROS-NUT Set of two M16 Jam Nuts T-5WP Waterproof Reflective Tape - 5 foot [1.5 m] roll
ROS-MNT 90° Slotted Mounting Bracket SPSR-IM Self Powered Sensor - Interface Module
WIRE 3-wire shielded Sensor Cable, bulk lengths PLUG 3.5 mm [1/8 inch] male stereo plug
Monarch Instrument
15 Columbia Drive, Amherst, NH 03031 USA
Tel: (603) 883-3390
www.monarchinstrument.com
M16 x 1.5
On Target LED
0.62” [15.9mm] 2.90” [74.0mm]
Middle (+V) Excitation- Brown
Tip (Signal) - Black
Base (Common) - Blue
Shield (Common)