Page 1
MONARCH INSTRUMENT
Instruction Manual
Pocket Laser Tach 200
(PLT200)
Tachometer / Rate Meter / Totalizer / Timer
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Page 2
SAFEGUARDS AND PRECAUTIONS
LASER RADIATION
AVOID DIRECT EYE EXPOSURE
CLASS 2 LASER PRODUCT
MAX OUTPUT POWER: 1mW
EMITTED WAVELENGTH: 650nm
CLASSIFIED TO IEC 60825-1:2001
WARNING - This product emits a visible beam of laser light.
Avoid exposure to the laser radiation. The use of optical viewing
aids (binoculars, for example) may increase the ocular hazard.
CAUTION - The laser beam should not be intentionally aimed at
people or animals.
CAUTION - Use of controls or adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.
Read and follow all instructions in this manual carefully, and
retain this manual 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.
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.
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Page 3
TABLE OF CONTENTS
TABLE OF CONTENTS
1.0 OVERVIEW .......................................................................... E-1
2. 0 FEATURE LOCATIONS ......................................................... E-1
3.0 LCD DISPLAY SYMBOLS .................................................... E-2
4.0 PLT200 SPECIFICATIONS ...................................................E-3
5.0 INPUT / OUTPUT ................................................................. E-7
6. 0 PREPARATION FOR MEASUREMENT ................................. E-8
6.1 Non-Contact Preparation .......................................... E-8
6.2 Direct Contact Preparation....................................... E-8
6.3 Connecting External Sensors .................................. E-9
7. 0 TAKING MEASUREMENTS ................................................E-10
7.1 Non-Contact Measurements .................................. E-10
7.2 Direct Contact Measurements ............................... E-10
8.0 TACHometer Mode........................................................... E-11
8.1 TACHometer Setup .................................................. E-11
8.2 TACHometer Operation ...........................................E-13
9.0 RATE Mode........................................................................ E-13
9.1 RATE Setup .............................................................. E-14
9.2 RATE Operation ....................................................... E-16
10.0 TOTALizer Mode ...............................................................E-17
10.1 TOTALizer Setup......................................................E-17
10.2 TOTALizer Operation ...............................................E-20
11.0 TIMER Mode ......................................................................E-21
11.1 TIMER Setup .............................................................E-21
11.2 TIMER Operation ......................................................E-22
12.0 BATTERIES ........................................................................E-23
13.0 CLEANING .........................................................................E-24
14.0 OPTIONS /ACCESSORIES ................................................E-24
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Page 4
1.0 OVERVIEW
The Pocket Laser Tach 200 is a multifunction Tachometer, Ratemeter,
Totalizer and Timer. It is programmable to read in English or Metric units.
An input socket accepts remote sensing devices and an output socket allows
for pulse output to external indicating devices. The PLT200 can be tripod
mounted and “Locked-On” for accurate and continuous operation. This
tachometer also stores minimum, maximum and last measurement in memory.
2.0 FEATURE LOCATIONS
LCD display
Min / Scroll
Down arrow
Tripod mounting bushing
(underside)
Start / Reset button
Belt clip
Output socket
Max / Scroll Up
arrow
Battery compartment
Menu / Select
and Lock-on
button
Input socket
AVOID EXPOSURE - LASER RADIATION IS
EMITTED FROM THIS APERTURE
E-1
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Page 5
3.0 LCD DISPLAY SYMBOLS
On Target Indicator. Blinks on whenever there is an input
signal. Will appear to be solid on at higher frequencies.
Low Battery icon. Indicates that the batteries are low and
need to be replaced.
Times Ten icon. Indicates that the value shown is ten times
that which is displayed.
Laser Indicator. Red laser is on when this indicator is
illuminated.
Lock icon. Indicates that the unit is “Locked” on and making
continuous measurements (Lock mode).
E-2
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4.0 PLT200 SPECIFICATIONS
Laser Specifications:
Classification: Class 2 (per IEC 60825-1 Ed 1.2 2001-8)
Complies with FDA performance standards for laser products except
for deviations pursuant to Laser Notice No. 50, dated July 26, 2001.
Maximum Laser Output: 1mW
Pulse Duration: Continuous
Laser Wavelength: 650 nm
Beam Divergence: < 1.5 mrad
Beam Diameter: 4 x 7 mm typical at 2 meters
Laser Diode Life: 8,000 operating hours MTBF (1 year
warranty)
Non-Contact Specifications:
Ranges: RPM 5 – 200,000
RPS 0.084 – 3,333.3
RPH 300-999,990
Resolution: Fixed: 1 (10 above 99,999)
Auto-ranging: 0.001 to 1.0 (10 above 99,999)
Accuracy: ±0.01% of reading or resolution limit
Operating Range: up to 25 feet (7.62 m) or up to 70 degrees off
perpendicular to T-5 tape target
Contact Specifications using optional Remote Contact Assembly:
Range: Contact Tips: 0.5 to 20,000 RPM
10 cm / 12-inch Wheel: 0.5 to 12,000 RPM
Resolution: Fixed: 1 (10 above 99,999)
E-3
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Auto-ranging: 0.001 to 1.0 (10 above 99,999)
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Page 7
Contact Specifications (continued):
Accuracy: Revs: ±0.05% of reading (RPM) or resolution limit
(with no slippage)
Linear: ±0.5% of reading or resolution limit (with no
slippage)
Contact Measurements Ranges:
TACHOMETER:
Revolutions per Minute (RPM) 0.5 to 20,000 RPM
Revolutions per Second (RPS) 0.0833 to 333.33 RPS
Revolution per Hour (RPH) 30 to 999,990 RPH
RATES: Wheel Circumference:
Inches per Second 10 cm: 0.033 to 1312.3 IPS
12 in: 0.100 to 2,400.0 IPS
Inches per Minute 10 cm: 1.969 to 78,740 IPM
12 in: 6.000 to 144,000 IPM
Inches per Hour 10 cm: 118.11 to 999,990 IPH
12 in: 360.00 to 999,990 IPH
Feet per Second 10 cm: 0.003 to 109.36 FT/S
12 in: 0.009 to 200.00 FT/S
Feet per Minute 10 cm: 0.164 to 6,561.7 FT/M
12 in: 0.500 to 12,000 FT/M
Feet per Hour 10 cm: 9.843 to 393,700 FT/H
12 in: 30.000 to 720,000 FT/H
Yards per Second 10 cm: 0.001 to 36.453 YPS
12 in: 0.003 to 66.667 YPS
Yards per Minute 10 cm: 0.055 to 2,187.2 YPM
12 in: 0.167 to 4,000.0 YPM
E-4
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Contact Measurements Ranges (continued):
RATES: Wheel Circumference:
Yards per Hour 10cm: 3.281 to 131,233 YPH
12 in: 10.000 to 240,000 YPH
Miles per Hour 10 cm: 0.002 to 74.564 MPH
12 in: 0.006 to 136.36 MPH
Centimeters per Second 10 cm: 0.084 to 3,333.3 CM/S
12 in: 0.21 to 3,048.0 CM/S
Centimeters per Minute 10 cm: 5.000 to 200,000 CM/M
12 in: 15.240 to 365,760 CM/M
Centimeters per Hour 10 cm: 300.00 to 999,990 CM/H
12 in: 914.40 to 999,990 CM/H
Meters per Second 10 cm: 0.001 to 33.333 M/SEC
12 in: 0.003 to 60.960 M/SEC
Meters per Minute 10 cm: 0.050 to 2,000.0 M/MIN
12 in: 0.153 to 3,657.6 M/MIN
Meters per Hour 10 cm: 3.000 to 120,000 M/H
12 in: 9.144 to 219,460 M/H
TOTALIZER:
Counts: 0 to 999,999
Scale Totals in Inches, Feet, Yards, Centimeters or Meters
Input: Internal or External optics or linear contact wheel
Timer Specifications:
Minutes:Seconds.Tenths to 99:59.9
Accuracy: ±0.2 second
Resolution: 0.1 second
E-5
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Display: Dual LCD Display (5-digit upper/scrolling, 5-digit
alphanumeric lower display)
Batteries: 2 “AA” 1.5 V (DC) alkaline included
(Note: Batteries are NOT rechargeable.)
Battery Life: 30 hours continuous typical with batteries provided
External Input:
Absolute max: -0.3 V to 5 V (DC)
Minimum: low below 1.2 V and high above 2 V (TTL compatible)
Edge: Triggers on Positive edge
Power Out: 3.0 V nominal, approx. 2.8 V @ 20 mA max
Pulse Output: 0 V to 3.3 V (DC) pulse
Same shape as External Input signal or high when internal
optics sees a reflection
Dimensions: 6.92” (17.58 cm) H x 2.4” (6.10 cm) W x 1.6” (4.06 cm) D
Weight: Approx. 7 oz. (210 g)
This product is designed to be safe for indoor use under the following
conditions (per IEC61010-1).
Installation Category II per IEC 664
Pollution Degree Level II per IEC 664
Temperature: 40 °F to 105 °F (5 °C to 40 °C)
Humidity: Maximum relative humidity of 80% for temperatures up
to 88 °F (31 °C) decreasing linearly to 50% relative
humidity at 100 °F (40 °C). Humidity non-condensing.
Specifications subject to change without notice.
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E-6S-17
Page 10
5.0 INPUT / OUTPUT
Input socket (
Output socket (
Input: Accepts remote sensor or
Remote Contact Assembly
(RCA). 1/8” (3.5mm) stereo
phone plug.
Output: 1 pulse per revolution TTL
output on internal operation.
Pulse repeater with external
sensors. 1/8” (3.5mm) mono
phone plug.
TT
T)
TT
SS
S)
SS
Signal Input
+3V Out to
Sensor
Common
(GND)
Common
(GND)
+3V Out to
Sensor
Signal Input
Input Connector Detail (Stereo plug)
Pulse Output
Common
(GND)
Common
(GND)
Pulse Output
Output Connector Detail (Mono plug)
E-7
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6.0 PREPARATION FOR MEASUREMENT
6.1 Non-Contact Preparation
For Internal operation (Red laser) or External operation
using optional Remote Optical Sensor (ROS-Red LED).
1. Clean
Shaft
2. Apply 1/2”
square T-5
Reflective
tape
For Small Shafts:
As small as 1/8” wide
on side or radius edge
6.2 Direct Contact Preparation
For External operation ONLY using optional Remote
Contact Assembly (RCA).
Select and install contact option:
1. Contact Tip (Convex tip shown.
Use Concave tip for small shafts.)
Align flats
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E-8
Page 12
2. 10 cm Wheel 3. 12 inch Wheel
OR
Install with
pin in shaft
Tighten screw
securely into flat
on shaft.
fully seated
in slot.
Tighten
screw.
6.3 Connecting External Sensors
Plug sensor into
Input socket
SS
S
SS
In
(shown with optional 12 inch wheel)
Remote Contact
Assembly (RCA)
Remote Optical
Sensor (ROS-P)
E-9
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Infrared Sensor
(IRS-P)
Magnetic Sensor
with Amplifier
(MT-190P)
Page 13
7.0 TAKING MEASUREMENTS
7.1 Non-Contact Measurements
Hand-held
Laser
External Sensor (ROS shown)OR
Light
7.2 Direct Contact Measurements
Rotational Linear
(Use concave
tip for small
shafts)
to RCA
from PLT200 from PLT200
ONLY USE MODERATE PRESSURE
WARNING: Making measurements in direct contact with rotating
equipment can be dangerous. Keep all loose clothing and hair
away from exposed moving machinery. Keep the hand holding
the instrument well behind the back end of the Remote Contact
Assembly. Properly replace all machinery guards after completing
measurement. Do not use for rotation greater than 20,000 RPM.
E-10
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Page 14
8.0 TACHometer Mode
Tachometer measures speed or linear rate with respect to time. Time intervals
are seconds, minutes, or hours. Rotational speed can be measured in Revolutions
(Revs) per second, per minute, or per hour. The most common measurement is
RPM or Revs per minute using the optical tachometer mode.
8.1 TACHometer Setup
1. Turn
Power
Last Units selected
are displayed
ON
1a. To toggle Lock
On/Off
Press and Hold
Locked On
2. Enter
Setup
3. Enter
selection
Last Mode selected is
displayed
of Mode
4. Select
TACH
OR
Repeat until TACH
displayed
Mode
5. Save and
advance
E-11
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6. Enter selection
of Units
RPS, RPM or RPH
7. Select Units
OR Repeat until
desired Units
displayed
8. Save and
advance
9. Enter selection
NONE, 1, 2 or 3
of number of
decimal places
10. Select decimal
places
OR Repeat until
desired decimal
places displayed
11. Save and
advance
12. Exit Setup –
Ready to
DONE, then Units
selected
measure
Unit will remember these settings (including lock on/off) even if turned off
and back on.
E-12
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8.2 TACHometer Operation
Measure
Press and hold
Recall Max
Recall Min
If unit Locked
OR
Lock on
Max Speed
Min Speed
Resets Max/Min
on:
Power OFF
Automatic after 90 seconds
OR
if unit not Locked on
9.0 RATE Mode
Measurement of units in addition to Revs requires the attachment of the
Remote Contact Assembly and tips/wheels. With this attachment, the unit
can measure RATE inputs-revs, inches, feet, yards, centimeters and meters
either per second, per minute or per hour, as well as miles per hour.
NOTE: External Remote Contact Assembly (RCA) must be inserted into
input socket.
E-13
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9.1 RATE Setup
1. Turn
Power
ON
1a. To toggle Lock
On/Off
2. Enter
Setup
3. Enter
selection
of Mode
4. Select
RATE
Mode
5. Save and
advance
6. Enter
selection
of Units
Press and Hold
Linear: IPS, IPM, IPH, FT/S, FT/M, FT/H,
YPS, YPM, YPH, MPH, CM/S, CM/M, CM/H, M/SEC,
M/MIN, M/H
EXTRN, then scrolling
message, then last
Units selected
Locked On
Last Mode selected is
displayed
OR Toggles between
RATE and TOTAL.
Select RATE.
Rotational: C RPS,
C RPM or C RPH
E-14
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RATE Setup (continued):
7. Select Units
8. Save and
advance
Only for Linear Units:
8a. Enter
selection of
Wheel
8b. Select
Wheel
8c. Save and
Advance
9. Enter selection
of number of
decimal places
10. Select decimal
places
OR Repeat until
desired Units
displayed
OR
Rotational Units
Linear Units
Last Wheel
selected is
displayed
OR Toggles
between 10CM
and 12IN
NONE, 1, 2 or 3
OR
Repeat until
desired decimal
places displayed
11. Save and
advance
E-15
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Page 19
12. Exit Setup –
Ready to
measure
DONE,
USE CONTACT TIP or
[wheel selected],
then Units selected
Unit will remember these settings (including lock on/off) even if turned off
and back on.
9.2 RATE Operation
Measure
OR
Press and hold Lock on
Recall Max
Recall Min
If unit Locked
Resets Max/Min
Max Speed
Min Speed
on:
Power Off
Automatic after 90 seconds
OR
if unit not Locked on
E-16
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Despliegue: 5 x 0.5” (12.7mm) dígitos numéricos más 5 alfanuméricos LCD
Baterías: 2 “AA” 1.5 V (CC) alcalinos incluidas
(Notese: Baterías NO se pueden volver a cargar.)
Vida de Batería: típicamentes 30 horas continuas con las baterías
suministrados
Entada externa:
Máximo absoluto: -0.3 V a 5 V (CC)
Mínimo: bajo a menos de 1.2 V y alto por encima de 2 V
(compatible con TTL)
Borde: Cambia en borde positivo
Potencia Salida: 3.0 V nominal, aprox. 2.8 V @ 20 mA max
Salida Pulso: 0 V a 3.3 V (CC) pulso, Misma forma que la señal de
entrada externa o alta cuanda la óptica interna ve una réfleccion
Dimensiones:6.92” (17.58 cm) de alto x 2.4” (6.10 cm) de ancho x 1.6”
(4.06 cm) de profundo
Peso: Aprox. 7 onzas. (210 g)
Este producto fue concebido para ser segura para uso interno bajo las
siguientes condiciones (según IEC61010-1).
Categoría de instalación II según IEC 664
Grado de nivel de contaminación II según IEC 664
Temperatura: 40 °F a 105 °F (5 °C a 40 °C)
Humedad: Humedad relativa maxima de 80% para temperatures hasta
88 °F (31 °C) disminuyendo linearmente hasta un 50% de
humedad relativa a una temperatura de 100 °F (40 °C).
Humedad sin condensar.
Especificaciones sujetos a cambios sin aviso previo.
S-6
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5. Save and
advance
6. Enter
selection of
Different options displayed for
Internal or External operation.
Units
Internal or External ROS: External Remote Contact Assembly:
COUNT
Only
Rotational: REV
Linear: INCH, FEET,
YARDS, CM, METER
7. Select Units
OR Repeat until
8. Save and
advance
OR
COUNT or REV Linear Units
Only for Linear Units:
8a. Enter selection
of Wheel
8b. Select Wheel
OR
8c. Save and
Advance
desired Units
displayed
Last Wheel
selected is
displayed
Toggles
between
10CM and
12IN
E-18
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TOTALizer Setup (continued):
9. Enter selection
NONE, 1, 2 or 3
of number of
decimal places
10. Select decimal
places
OR
Repeat until
desired decimal
places displayed
11. Save and
advance
12. Exit Setup –
Ready to
measure
Units = COUNT: Rotational/Linear Units:
DONE,
then COUNT
DONE,
USE CONTACT TIP or
[wheel selected],
then Units selected
Unit will remember these settings (including lock on/off) even if turned off
and back on.
E-19
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10.2 TOTALizer Operation
Measure
Recall Max or
Min
Recall Time
in seconds
If unit is
Locked on:
Power Off
NOTE:
Pressing
OR
Press and hold Lock on
Resets Max/Min, Total and Measurement Time
Automatic after 90 seconds
OR
if unit not Locked on
OR
Max or Min Speed (in
last selected Tach or
Rate mode units)
Shows time in seconds
from when the Start /
Reset button is pressed
until the last input
signal measured.
once before 90
seconds will keep
measurements in
memory and the
display turned on
longer.
E-20
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Page 24
11.0 TIMER Mode
Accumulates time in minutes, seconds, and tenths of a second. There are two modes
of operation. The Manual mode operates like a stopwatch, the timing period being
started and stopped by the user. The Auto mode can be stopped and started by the
user or a piece of reflective tape on objects. The user can freeze the display-and view/
record a LAP time-at any time without affecting the count.
11.1 TIMER Setup
1. Turn Power
ON
Last Units selected
are displayed
1a. To toggle Lock
On/Off
Press and Hold
Locked On
2. Enter Setup
Mode
3. Enter selection
of Mode
4. Select TIMER
Mode
OR
Last Mode selected
is displayed
Repeat until
TIMER displayed
5. Save and
advance
E-21
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6. Enter selection
of Timer
function
MAN or AUTO
7. Select Timer
function
OR Toggles between
Manual and
Auto
8. Save and
advance
9. Exit Setup –
Ready to
DONE, then Units
selected
measure
Unit will remember these settings (including lock on/off) even if turned off
and back on.
11.2 TIMER Operation
Measure:
Manual
Each press toggles Start and
Stop
Auto
Start and Stop triggered by
OR
external remote optical sensor
(ROS) or internal optics
Reset
With Timer stopped Resets time to 00:00.0
E-22
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TIMER Operation (continued):
Lap
Power Off
12.0 BATTERIES
When displayed, replace batteries.
Remove battery
cover
With Timer running Stops at elapsed time to date.
To continue, press again.
OR
OR
Install two 1.5V
“AA” alkaline
batteries
If Timer stopped Automatic after 90 seconds
(if unit not Locked on)
Automatic after 99:59.9
NOTE: Both
batteries face the
same direction.
E-23
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13.0 CLEANING
To clean the instrument, wipe with a damp cloth using mild soapy solution.
14.0 OPTIONS /ACCESSORIES
T- 5 Reflective Tape, 5 foot [1.5 m] roll, ½ inch [13 mm] wide
RCA Remote Contact Assembly with 10 cm wheel, concave
and convex tips
CTE Concave/convex contact tips and 10 cm linear contact
wheel
12 inch Wheel 12 inch circumference wheel for use with RCA
CA-4044-6 6 foot Input/Output cable, 1/8” mono phone plug to
BNC connector
ROS-P Remote Optical Sensor
ROS-P-25 Remote Optical Sensor with 25 foot cable
ROSM-5P Remote Optical Sensor, modulated
MT-190-P Amplified Magnetic Sensor
IRS-P Infrared Sensor
EC-25P 25 foot extension cable for all sensors
CC-10 Padded Nylon Carrying Case
CC-11 Latching Carrying Case for Pocket Tach and accessories
CAL-N.I.S.T. N.I.S.T. Traceable Certificate of Calibration
E-24
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