Monarch Instrument M-190W User Manual

M-190W Magnetic Sensor

SPECIFICATIONS:

Speed Range: 1-99,999 RPM

Operating Distance: 0.005” [0.127 mm] gap from target
Minimum Target Size: 0.106” [2.692 mm] minimum diameter
Power required: None - Self Generating AC voltage
Output Signal: 190V P-P maximum
Pole Piece Magnet Diameter: 0.106 inch [2.692 mm]
Operating Temperature: -100° to 225° F [-73° to 107° C]
Standard Cable Length: 8 feet [2.438 m]
Dimensions: 2.0” (L) x 0.625” [50.8 x 15.875 mm]
Weight: 3 oz. [85 g]

Specifications are subject to change without notice.

Figure 1 M-190W Dimensions

OVERVIEW:

The M-190W Magnetic Sensor is a self-powered gear sensor that is most popular for use with 60 tooth 20 pitch gears. The sensor mounts
within 0.005 inches [0.127 mm] of a minimum 0.106 inch [2.692 mm] diameter ferrous target. The sensor self-generates an AC signal and
requires no power from the display module.

The M-190W is compatible with all Monarch ACT Series panel tachometers and MT-190 Magnetic Trigger Sensor/Amplifier models.

CONNECTION DETAIL:

Wire Color Function

Black AC Signal
White AC Signal
Shield Housing Ground

When using the M-190W with any Monarch ACT Series panel tachometer, refer to the panel tachometer instruction manual for sensor
connection detail.

OPERATION:

Magnetic sensors convert motion of a ferrous target into an AC voltage output proportional to speed. The target must not be smaller than
the magnetic poll piece (0.106 inches, 2.692 mm) or larger than the diameter of the sensor (0.625 inches, 15.875 mm). Gear teeth are
preferred, but bolt heads, slots or keys also work. The Monarch ACT Series panel tachometers will typically operate from all 2-wire design
magnetic sensors. The stainless steel and waterproof housing of the M-190W sensor allow operation in harsh locations. The user can
increase the cable length up to a total of 500 feet [152.4 m] in length.

In order to comply with EU Directive 2002/96/EC on Waste Electrical and Electronic Equipment (WEEE):

This product may contain material which could be hazardous to human health and the environment. DO NOT DISPOSE of
this product as unsorted municipal waste. This product needs to be RECYCLED in accordance with local regulations, contact
your local authorities for more information. This product may be returnable to your distributor for recycling - contact the
distributor for details.

MONARCH INSTRUMENT * 15 Columbia Drive * Amherst, NH 03031 USA * Tel: [phone] * Fax: [phone]

E-mail: [e-mail] * Website: www.monarchinstrument.com

1071-4853-210R (1011)

MT-190 Magnetic Amplifier Module

Connection Detail for Amplifier Tinned Wires:

Wire Color Function
Brown Positive Power Supply (+V)
Blue Common (Com)
Black Signal (+V to 0 Vdc Pulse) (Sig)
Shield Sensor Shield (Com)

Connection Detail for Amplifier Plug:

Middle (+V) Excitation- Brown

Tip (Signal) - Black

Base (Common) - Blue

Shield (Common)

SPECIFICATIONS:

Power required: 3.3 to 12 Vdc, 15 mA
Operating Distance: extended to 0.25” [6.35 mm] gap from target
Output Signal: Same as power supplied, TTL compatible with 5 Vdc supplied
Operating Temperature: 20° to 160° F [-6° to 70° C]
Standard Cable Length: 1.5 feet [0.457 m]
Dimensions: 2.65” (L) x 1.38” x 1.05” [67.3 x 35.0 x 26.7 mm]
Weight: 1.728 oz. [48.988 g]

Specifications are subject to change without notice.

M-190W Magnetic
Sensor

Amplifier Module
with plug

Figure 1 Amplifier Module Dimensions

MT-190P Magnetic Trigger Sensor/Amplifier

with plug

OVERVIEW:

The MT-190 Magnetic Amplifier Module enhances the performance of the M-190W Magnetic Sensor (see other side). The Amplifier
extends the operating gap for the sensor to 0.25 inches [6.35 mm] from the ferrous target. The MT-190 Magnetic Trigger Sensor with
Amplifier can sense gear teeth, bolt heads or shaft keys. The MT-190 provides a pulsed output signal and is TTL compatible with 5 Vdc
supplied.

The M-190W Magnetic Sensor is combined with an Amplifier Module to become an MT-190P or MT-190W. The Amplifier Module has an
8 foot [2.438 m] cable with 3 tinned wires and a ground shield (MT-190W) or 1/8 [3.5 mm] phone plug (MT-190P) termination.

The MT-190W is compatible with all Monarch ACT Series panel tachometers and Data-Chart 1250 Paperless Recorders.

The MT-190P is compatible with the following Monarch instruments: Pocket Laser Tachometer 200 (PLT200), SPSR Self-Powered
Sensor, Deluxe Nova-Strobes (dax, dbx, DBL) and Phaser-Strobes (pbx, PBL).

The MT-190W and MT-190P can also output pulses to a user’s data acquisition system.

CONNECTION DETAIL:

The Magnetic Sensor must be
connected to the Magnetic Trigger
Amplifier Module. Refer to Figure
2 for connection detail. The
connection details for the Amplifier
Module are shown below Figure 2.

Figure 2 Magnetic Sensor to Amplifier Connection Detail

When using the MT-190W with any
Monarch instrument, refer to the instrument instruction manual for sensor
connection detail.

When using the MT-190P with any Monarch instrument, plug the 1/8 [3.5
mm] phone plug into the input jack on the respective instrument.

WHITE to +

BLACK to

Shield

Amplifier Module shown
with tinned wires (plug
also available)

OPERATION:

Magnetic sensors convert motion of a ferrous target into an AC voltage
output proportional to speed. The Amplifier Module amplifies the signal
and converts it to square wave pulses. The target must not be smaller than
the magnetic poll piece (0.106 inches, 2.692 mm) or larger than the
diameter of the sensor (0.625 inches, 15.875 mm). Gear teeth are preferred,
but bolt heads, slots or keys also work.

MONARCH INSTRUMENT * 15 Columbia Drive * Amherst, NH 03031 USA * Tel: [phone] * Fax: [phone]

E-mail: [e-mail] * Website: www.monarchinstrument.com

1071-4853-210R (1011)