Morris 57088 User manual

Users Manual
Motor & Phase Rotation Indicator
Model 57088

Table of Contents
Introduction….…............................................. 1
Accessories..................................................... 1
Safety Information .......................................... 2
Symbols.......................................................... 5
Elements of the apparatus ............................. 6
Using the Motor & Phase Rotation
Indicator.......................................................... 7
Determine Rotary Field Direction ................... 7
Non-Contact Rotary Field Indication ............. 9
Determine the Motor Connection ................ 11
Magnetic Field Detection............................... 13
Maintaining the apparatus............................ 13
Cleaning........................................................ 13
Replacing and Disposing of the
Batteries ……………………………….……... 14
Specifications .............................................. 18

List of Tables
1. Symbols .................................................... 5
2. Reliable Motor Test
Requirements ........................................... 11
List of Figures
1. Motor and Phase
Rotation Indicator...…..……..…….……... 6
2. Phase Indication Table ............................. 8
3. Motor Rotation ........................................ 10
4. Battery Replacement .............................. 17

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Introduction
Motor and Phase Rotation Indicator is a
handheld, battery-operated instrument
designed to detect the rotary field of
three-phase systems and determine
motor-rotation direction.
Accessories
Motor and Phase Rotation Indicator ships with
the following items:
•3 test leads
•3 test probes
•3 alligator clips
•9V battery
•Users Manual
If an item is damaged or missing, contact the
place of purchase immediately.

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Safety Information
Caution identifies conditions and actions
that may damage the apparatus.
Warning identifies conditions and
actions that pose hazard(s) to the user.
Read First: Safety Information
To avoid possible electric shock or fire, do
the following:
•Read the following safety information
carefully before using or servicing the
instrument.
•Adhere to local and national safety codes.
•Individual protective equipment must be
used to prevent shock and injury.
•Use of instrument in a manner not

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specified by the manufacturer may impair
safety features/protection provided by the
equipment.
•Avoid working alone.
•Inspect the test leads for damaged
insulation or exposed metal. Check test
lead continuity. Damaged leads must be
replaced. Do not use the apparatus if it
looks damaged.
•Be careful when working above 30 V ac
rms, 42 V ac peak and 60 V dc. Such
voltages pose a shock hazard.
•When using the probes, keep fingers away
from probe contacts. Keep fingers behind
the finger guards on the probes.
•Measurements can be adversely affected
by impedances of additional operating

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circuits connected in parallel or by
transient currents.
•Verify operation on a known source prior
to measuring hazardous voltages (voltages
above 30 V ac rms, 42 V ac peak and 60 V
dc).
•Do not use the apparatus with any of the
parts removed.
•Do not use the apparatus around explosive
gas, vapor, or dust.
•Disconnect the test leads from power
sources and the apparatus before
changing the battery.
•Do not use the apparatus in a wet
environment.

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Symbols
The following symbols appear on the Motor and
Phase Rotation Indicator or in this manual.
Table 1. Symbols
Attention!
Dangerous Voltage!
Ground
AC
DC
Low Battery
Fuse
European union directives
Double insulation

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Elements of the apparatus
Indicators, buttons, and jacks are shown
in Figure 1.
Figure 1.
L1
、
L2
、
L3
Indicators
Test lead input jack
Clockwise
Rotation
LED Indicator
ON/OFF
button
Explain
Faceplate
Orientation
Symbol
ON/OFF
Indicator
Indicator
Clockwise
Counter
LED

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Using the Motor & Phase Rotation
Indicator
Determine Rotary Field Direction
To determine the rotary field direction:
1. Connect one end of the test leads to the
apparatus Make sure the L1, L2, and L3 test
leads are connected to the corresponding
input jacks.
2. Connect the test probes to the other end of
the test leads.
3. Connect the test probes to the three mains
phases. Press the ON/OFF button. The
green ON indicator shows that the instrument
is ready for testing.
Either the Clockwise or Counter Clockwise
Rotary indicator illuminates showing the
type of rotary field direction present.

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Warning
The rotary indicator lights even if the neutral
conductor, N, is connected instead of L1, L2,
or L3. Refer to Figure 2 (also shown on the
face of the apparatus) for more information.
Figure 2. Phase Indication Table (shown on
the face of the apparatus)

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Non-Contact Rotary Field Indication
For non-contact rotary field indication:
1. Disconnect all test leads from the apparatus
2. Position the Indicator on the motor so that it
is parallel to the length of the motor shaft. The
Indicator should be one inch or closer to the
motor. See Figure 3.
3. Press the ON/OFF button. The green ON
indicator shows that the instrument is ready
for testing.
Either the Clockwise or Counter Clockwise
Rotary indicator illuminates showing the type
of rotary field direction present.
Note
The Indicator will not operate with engines
controlled by frequency converters. The bottom
of the apparatus should be oriented towards the

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drive shaft. See the Orientation Symbol on the
apparatus.
Figure 3. Motor Rotation

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See Table 2 for the minimum motor diameter
and number of pole pair to obtain a reliable
test result.
Table 2. Reliable Motor Test Requirements
Determine the Motor Connection
1. Connect one end of the test leads to the
apparatus. Make sure the L1, L2, and L3 test
leads are connected to the corresponding
jack.

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2. Connect the alligator clamps to the other end
of the test leads.
3. Connect the alligator clamps to the motor
connections, L1 to U, L2 to V, L3 to W.
4. Press the ON/OFF button. The green ON
indicator shows that the instrument is ready
for testing.
5. Turn the motor shaft half a revolution towards
the right.
Note
The bottom of the apparatus should be
oriented towards the drive shaft. See the
Orientation Symbol on the apparatus
。
Either the Clockwise or Counter Clockwise
Rotary indicator illuminates showing the
type of rotary field direction present.

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Magnetic Field Detection
To detect a magnetic field, place the apparatus
to a solenoid valve. A magnetic field is present if
either the Clockwise or the Counter Clockwise
Rotary indicator illuminate.
Maintaining the apparatus
This section provides basic maintenance
information.
Caution
To avoid damaging theapparatus:
•Do not attempt to repair or service the
apparatus unless qualified to do so.
•Make sure that the relevant calibration,
performance test, and service information
is being used.
Cleaning
Periodically wipe the case with a damp cloth

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and mild detergent. Clean only with soap and
water and remove any residue afterwards.
Caution
To avoid damaging the apparatus:
•Do not use abrasives or solvents.
Abrasives or solvents will damage the
apparatus case.
•Prior to cleaning, remove test leads from
the apparatus.
Replacing and Disposing of the
Batteries
Warning
To avoid electric shock, disconnect the test
leads from the source before opening the
apparatus for battery replacement.

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Note
The apparatus contains alkaline batteries. Do
not dispose of these batteries with other solid
waste. Used batteries should be disposed of by
a qualified recycler or hazardous materials
handler.
The apparatus uses a 9 V battery (supplied). To
replace the battery, follow these steps and refer
to Figure 4:
1. Disconnect test leads from any power
source.
2. Remove the holster.
3. Place the apparatus face down on a
nonabrasive surface and loosen the
battery-door screw with a flat-blade
screwdriver.
4. Lift the battery access lid away from the

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apparatus.
5. Replace the battery as shown in Figure 4.
Observe the battery polarity shown in the
battery compartment.
6. Secure the battery access lid back in position
with the screw.
7. Place the apparatus back in the holster.

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Figure 4. Battery Replacement