ONOSOKKI
HT- 5200
Handheld Tachometer
Instruction Manual
ONO SOKKI CO., LTD.
1. This document may not be reproduced, in whole or part, in any from or by
any means without the prior written permission of the publisher.
2. The contents of this document are subject to change without notice.
3. This document has been produced based on a series of strict verifications
and inspections. Should a failure occur nonetheless, please inform our
sales representative or sales office.
4. Ono Sokki shall have no liability for any effect resulting from any operation, whether or not the effect is attributable to a defect in the documentation.
Copyright c ONO SOKKI CO., Ltd. 2004 All rights reserved.
Precautions to Observe Before Using the HT-5200
・ Be sure to read this instruction manual.
To ensure that you get the most out of the HT-5200, and operate it safely, be sure to read this instruction manual.
・ Avoid sudden changes in temperature.
Avoid bringing the HT-5200 suddenly from a hot location into
a cool one, or vice versa, as this can cause internal condensation which can lead to failures.
・ Take care that water and dust are not allowed to enter
the inside of the HT-5200.
Avoid using the HT-5200 in locations that would subject it to
excessive dust, water, and high humidity.
・ Do not drop the HT-5200 or otherwise subject it to
shock.
The HT-5200 contains precision electronics components. Do
not drop it, and avoid subjection it to severe shock.
・ Take care that the lens of the light projector-receiver
is not damaged.
Damage to this lens will cause a loss of performance.
・ Wipe dirt from the HT-5200 using either a dry cloth or
one moistened just slightly (wet and wrung out well)
with a neutral detergent.
Never wipe dirt off using thinners, benzene, or other volatile
liquids or alcohol.
・ If the HT-5200 is to be left unused for a long time, remove its batteries.
Remove batteries to prevent damage from fluid leaking from
worn batteries.
・ Do not apply any voltages to the pluse output connector.
・ Never use any AC adaptor other than the PB-703 (option).
1
WARNING
SAFETY PRECAUTIONS
・ When using an AC adaptor or the AX-1200 pulse output cable,
take care that the cable does not become tangled around the
rotating body, as this can be extremely dangerous.
・ When using a contact adaptor tighten the mounting screw securely by hand to hold it securely to the HT-5200.
・ When using a contact adaptor to make rpm measurements, be
extremely careful with safety precautions.
Particular care is required in making measurements over 10,000
r/min. When using the circumferential ring to measure tangential speed, take care with measurements at high speed. (For
details, refer to page 29.)
・ The contact tip and circumferential ring are expendable items
that wear. Measurement with a contact tip or circumferential
ring which has become deformed or has cracked is extremely
dangerous. Replace such items with new ones.
・ It is dangerous to use a cracked contact adaptor. Replace such
an item with a new one.
2
Table of Contents
GENERAL PRECAUTIONS
1.
INTRODUCTION ............................................... 5
1.1
1.2
1.3
Features .................................................................. 5
Configuration .......................................................... 6
Options (Separately Sold) ....................................... 6
2.
NAMES AND FUNCTIONS OF PARTS ............ 7
3.
POWER SUPPLY ........................................... 12
4.
RELATIONSHIP OF MEASUREMENT MODES
TO SWITCH SETTINGS AND UNITS ............ 13
5.
MEASUREMENT PREPARATION .................. 15
5.1
5.2
Non-Contact Measurements ................................ 15
Contact Measurements ........................................ 16
6.
MEASUREMENT METHODS ......................... 17
7.
OPERATION GUIDE ....................................... 22
8.
OTHER FUNCTIONS ...................................... 23
8.1
8.2
8.3
Pulse Output ......................................................... 23
Memory Recall ...................................................... 24
Alarm Function Setting ......................................... 24
9.
OPERATING PRECAUTIONS ........................ 26
9.1
9.2
Non-Contact Measurements ................................ 26
Measurements Using a Contact Adaptor ............ 29
WARNING .............................................................. 29
10. OVERRANGE DISPLAY ................................. 31
3
11. TROUBLESHOOTING .................................... 32
12. SPECIFICATIONS .......................................... 34
12.1
12.2
12.3
12.4
12.5
12.6
Measurement Section ........................................... 34
Detection Section ................................................. 36
Pulse Output ......................................................... 37
Storage Time ......................................................... 38
Calculation Method .............................................. 38
General Specifications ......................................... 38
13. OUTER DIMENSIONS .................................... 39
14. STORAGE METHOD ...................................... 39
15. WARRANTY ................................................... 40
16. OMISSION OF TEST
QUALIFICATION ISSUANCE ............................. 40
4
1.
INTRODUCTION
The HT-5200 is a visible-light type non-contact hand-held tachometer which measures rpm by means of a reflective mark on the
rotating body.
The advanced HT-5200 features a full compliment of functions
in a single compact unit , including an accessory contact adaptor
that enables contact-type measurements as well.
1.1 Features
・ Autoranging measurements (non-contact mode) from as low
as 6 r/min to as high as 99999 r/min.
・ Selectable measurement units : r/min, r/s, m/min., count, ms.
・ Direct-reading measurement of tangential speed.
・ MAX and MIN modes display maximum and minimum values (except for count mode).
・ A memory recall function enables easy verification of measurement results.
・ An alarm function can be used to sound a beeper when the
measured value exceeds a set value.
・ Pulse output according to the rpm value.
・ An accessory contact adaptor (HT-0501) enables use as a contact-type tachometer.
・ Tripod mounting is possible (non-contact measurements only).
・ Operates on type AA batteries or an AC adaptor.
・ Back lit function convenient for easy reading in dark location.
5
1.2 Configuration
① HT-5200 Tachometer
⑥ Screwdriver
② HT-0501 Contact Adaptor
⑦ Type AA Manganese
Batteries (3)
③ KS-300 Contact Tip
⑧ Instruction Manual
(this document)
④ KS-200 Circumferential Ring ⑨ Carrying Case
⑤ Reflective Marks
① HT-5200
② HT-0501
③ KS-300
④ KS-200
⑤ Reflective
Tachometer Contact Adaptor Contact Tip Circumferential Marks
Ring
⑥ Screwdriver
⑦ Manganese Batteries
(Type AA)
⑧ Instruction
Manual
⑨ Carrying Case
1.3 Options (Separately Sold)
AX-1200 Pulse Output Cable
PB-703
AC Adaptor
HT-011
Reflective Marks (10 sheets, with 250 marks measuring 12 mm × 12 mm)
KS-100
Circumferential Ring(mm/s)
6
2.
NAMES AND FUNCTIONS OF PARTS
The names and functions of HT-5200 parts are keyed to the circled
numbers in the figure below.
3
e
OVER
7
r
MAX MIN
H
COUNT m/min
PERIOD
2
BATT
r/s r/min
ms
1
ON
IND
8
HOLD
OFF
LIGHT
ON
HT-5200
DIGITAL TACHOMETER
w
RECALL
MODE
UNIT
ONOSOKKI
6
5
4
y
23
23
456
78
78
901
78
23
456
PULSE
OUT
901
456
t
PULSE
OUT
DC IN
901
To access t and y, open w.
9
u
OVER
i
o
MAX MIN
p
a
H
BATT
0
q
j
d
f
COUNT m/min
PERIOD
r/s r/min
ms
g
s
7
h
① Power switch(refer to page 22)
By sliding this switch to the ON position, power is applied to the
HT-5200. When you release your finger, power is switched off. If
you slide the switch to the HOLD position, it will lock in the on
condition even when you remove your finger.
② Display
This display provides a direct reading of the measured values in
all modes.
③ Detection section
This light projector-receiver is used in detected light reflected from
the reflected mark(i.e., the rpm signal.)
④ UNIT switch(refer to page 20 through 22)
Each time this switch is pressed, the measurement unit changes in
the sequence r/min → r/s → m/min → count → period (ms).
r/min
r/s
m/min
COUNT
PERIOD
⑤ MODE switch(refer to page 22)
This switch is pressed to switch between the MAX and MIN modes
in the sequence(NORMAL)→ MAX → MIN(in the NORMAL mode there is no display).
MAX
r/min
MIN
r/min
r/min
8
ms
⑥ RECALL switch(refer to page 24)
When the power is off, this switch can be pressed to recall a measured value stored in memory to the display. When power is on ,
this switch acts as a reset switch for the maximum value, minimum value, and accumulated count value.
⑦ Indicator(input signal indicator lamp)
This LED lamp flashes when the detection section is detecting
the reflected light from the reflective mark.
⑧ Backlighting switch
When this switch is slid into the ON position, the display backlighting is turned on.
⑨ PULSE OUT connector(refer to page 23)
This connector provides a pulse output signal for the CF-1200
Analyzer or other external device. Use the AX-1200 cable (option) to make connection to this connector.
⑩ PULSE OUT switch(refer to page 23)
This switch is used to select either positive logic or negative logic
of the pulse output signal.
⑪ DC IN jack
This is the DC input jack for connection to a PB-703 AC Adaptor.
⑫ Battery cover
⑬ Threaded tripod mounting hole
This threaded hole is used to tripod mount the HT-5200. It is also
used to mount the contact adaptor, and so both tripod mounting
and the contact adaptor cannot be used at the same time.
⑭ Contact adaptor pin guide hole
When the contact adaptor is mounted to the HT-5200, the protrusion of the contact adaptor enters this hole, the HT-5200 senses it
and switches to the contact-type measurement mode.
9
⑮ Alarm on / off switch(refer to page 24)
This switch is located at the bottom of the battery compartment
and is accessed by removing the battery cover. If it is slid to the
ON (forward) position, the (((・))) mark will appear on the display, and if the measured value exceeds the set value a beeper
will sound and H will appear on the display.
⑯ Preset switches
These switches are also located at the bottom of the battery compartment.
These three switches have the following two functions.
Alarm function (refer to page 24)
Tangential speed direct reading function (refer to page 17)
(only for non-contact measurement)
⑰ OVER indicator
This indicator appears in the display when the measured value
exceeds the measurement range.
⑱ Mode indicators(refer to pages 13 and 20-21)
MAX
:Maximum value is held.
MIN
:Minimum value is held.
⑲ Alarm setting indicator
This (((・))) indicator appears in the display when the alarm setting is on.
⑳ H indicator
This indicator appears in the display when the measured rpm value
exceeds the set alarm limit. If the measured value exceeds the
measurement range, it will appear together with the OVER indicator.
a BATT indicator
This mark warns that it is time to replace the batteries, and appears when the battery voltage drops below approximately 3.3 V.
When this mark appears, replace the batteries as soon as possible.
10
s Measurement unit indicators(refer to page 13 and 22)
d COUNT indicator(refer to pages 19 and 22)
This indicator appears when the HT-5200 is in the accumulated
count mode.
f PERIOD indicator(refer to pages 19 and 22)
This indicator appears together with the
ms
indicator when
the HT-5200 is measuring period.
g HT-0501 Contact Adaptor(refer to pages 16 and 22)
This adaptor is mounted to the HT-5200 and used to convert the
HT-5200 to a contact-type tachometer.
h Mounting screw
Used to mount the contact adaptor to the HT-5200.
j Protrusion
Provided to enable the HT-5200 to sense the presence of the contact adaptor and switch to contact-type measurement.
11
3.
POWER SUPPLY
・ The HT-5200 operates on 3 type AA batteries or a PB-703 AC
Adaptor (option).
・ If the batteries wear down and the BATT warning indicator
appears in the display, replace the batteries.
When replacing batteries, be sure to always replace all 3 at the
same time.
Battery Replacement Method
① Lift up the battery cover while pushing the button of the battery cover to remove the cover.
② Insert new batteries, taking care to observe proper ( + ) and (
− ) polarities (see figure below).
③ Close the battery cover.
Battery (+)
and (-) marks
12
4.
RELATIONSHIP OF MEASUREMENT
MODES TO SWITCH SETTINGS AND UNITS
(Display units and symbols)
[UNIT Switch]
[MODE
Switch]
NORMAL
RPM
Tangen.
speed
Period
Accum.
count
r/min
r/s
m/min
Period,
ms
Count
Period,
ms
---
Period,
ms
---
MAX display
Non-Contact
measurement
(HT-5100 only)
MAX
value
r/min
r/s
m/min
MIN display
MIN
value
r/min
r/s
13
m/min
(Display units and symbols)
[UNIT Switch]
[MODE
Switch]
NORMAL
RPM
Tangen.
speed
Period
Accum.
count
r/min
r/s
m/min
(mm/s)
Period,
ms
Count
Period,
ms
---
Period,
ms
---
MAX display
Contact
measurement
(HT-5100
+ contact
adaptor)
MAX
value
r/min
r/s
m/min
(mm/s)
MIN display
MIN
value
NOTE :
mm/s
r/min
r/s
m/min
(mm/s)
measurement is performed by mounting the
KS-100 Circumferential Ring (separately sold) and displaying s
r/min
measurement units. The unit does not appear on the display.
14
mm/
5.
MEASUREMENT PREPARATION
5.1 Non-Contact Measurements
① When using the HT-5200 for the first time, install batteries.
(This applies to contact type measurements as well.)
② Apply a reflective mark to the rotating body to be measured.
(Refer to Section 9 : Precautions for Non-Contact Measurements for details on applying the reflective mark.)
A) Clean any oil, water, and dust off of the surface to which
the reflective mark is to be applied, and apply the mark to
a flat part of the surface.
B) If the surface to which the mark is applied is shiny (e. g., a
plated surface), either make measurements at an angle removed from the perpendicular to this surface, or paint the
surface black before applying the reflective mark.
③ Press the power switch and shine the light from the light projector-receiver (detection section) onto the mark, verifying that
the input signal indicator lamp flashes. (At high rpm, the lamp
will appear to be lighted continuously.)
A) To ensure proper data, make each measurement for at least
3 seconds.
B) Maintain a proper distance between the reflective mark and
the detection section of the HT-5200. (Refer to Section 9 :
Precautions for Non-Contact Measurements for details on
the measurement distance.)
Reflective mark
Rotating body
15
5.2 Contact Measurements
① Align the contact adaptor with the detector section of the HT5200, so that the protrusion on the adaptor fits into the guide
hole of the HT-5200, and tighten the screw of the adaptor securely into the threaded tripod mounting hole of the HT-5200.
(The protrusion of the adaptor is sensed in the guide hole to
automatically switch the HT-5200 from non-contact measurement to contact measurement.)
② Turn the power of the HT-5200 on, and rotate the detection
shaft to verify that the display comes on.
③ Mount the KS-300 Contact Tip, and use the UNIT switch to
select the measurement units (r/min, r/s, or ms).
④ Press the contact tip up against the rotating shaft to be measured so that there is no slippage between it and the hole in the
center of the shaft end. When doing this, hold the HT-5200 so
that its axis is parallel with that of the shaft being measured.
A) Do not attempt to use the HT-5200 with shafts not having
a countersunk depression at the end.
B) Measurement error may occur, depending upon the material of the rotating body and the manner in which the contact adaptor makes contact with it.
90˚ center countersunk
Minimize up/down
& left/right movement.
90˚
Shaft center
Rotating shaft
16
6.
MEASUREMENT METHODS
Measured
Switch Display /
Item
Setting
Units
RPM
UNIT
r/min
or
r/s
Description
① Measures the rpm of a rotating body.
②The rpm display is updated
every 1 s.
Tangential
UNIT
m/min
① The setting described below enables direct reading
speed
of tangential speed.
② Setting method
◆ Non-contact
A) Set the diameter of the ro-
method
tating body on the preset
switches located under the
batteries.
B) The setting can be made in
the range 1 to 999 mm, in
1-mm steps.
C) The weights of the preset
switches are (from the left)
100, 10, and 1 mm.
17
Measured
Switch Display /
Item
Setting
Units
Tangential
UNIT
m/min
Description
①Mount the KS-200 Circum-
speed
ferential Ring to the detection shaft, being sure that
the pin of the shaft fits into
◆ Contact
the slot of the ring.
method
② As shown in the figure,
Using the
press the circumferential
KS-200
ring up against the object
under measurement perpendicularly from the display side.
As a safety measure, be
sure to hold the HT-5200
with both hands.
Contact tip
end angle
18
Measured
Switch Display /
Item
Setting
Units
Tangential
UNIT
mm/s
(r/min)
speed
Description
① Mount the KS-100 Circumferential Ring to the detection shaft.
◆ Contact
② Measure in r/min units.
method
③ Measurement precautions
are the same as for the KS-
Using the
200.
KS-100
Period
UNIT
PERIOD ① With this measurement
and
unit, measurement is per-
ms
formed of the period of the
periodic rotational pulse
signal.
② The measurement range is
0.6 ms to 9999.9 ms.
③ Analog output is not available.
Count (accumu-
UNIT
COUNT ① With this measurement
unit, only counting and ac-
lated count)
cumulated display of pulses
is performed.
② To begin counting, press
the RESET(RECALL)
switch.
19
Measured
Item
Switch Display /
Setting
Description
Units
③ The 5-digit display has a
maximum count of 99999.
A) When the count exceeds
10000, the OVER indicator
appears.
B) If during counting the power
is switched off and recall is
made from memory, all values with other measurement units will be displayed as 0.
④ Analog output is not available.
MAX
MODE
(maximum
UNIT
value)
r/min
① In this mode, press RESET
r/s
(RECALL) to clear the
m/min
maximum value recorded
thus far.
ms
② For PERIOD, when the
measurement is started,
press RESET with the rotational signal applied.
③ If the RESET switch is not
pressed, −−−− will be
displayed continuously.
20
Measured
Switch
Display
Item
Setting
Units
MIN
MODE
r/min
(minimum
UNIT
r/s
started, press RESET with
m/min
the rotational signal ap-
value)
ms
Description
① When the measurement is
plied.
② If the measurement is
stopped with the power applied, 0 r/min will be held
as the minimum value. If
you wish to hold the minimum value even after measurements are stopped, turn
power off during the measurement and use the
memory recall function.
21
22
HT-0501
Contact
Adaptor
Contact
Method
Non-Contact
Method
KS-200 (m/min)
KS-100 (mm/s)
Curcum ring
RPM
Period
Count
UNIT Switch
r/min or r/s
Period, s
Count (no max/min)
UNIT Switch
Hand hold
Tripod Mount
HOLD position
Power Switch
ON position
Measurement
Hand hold
3-digit preset
Alarm on/off awitch
Pulse output
Memory recall
Alarm
(preset function)
Power Switch
ON position
HOLD position
Other functions
Measurement
3-digit preset
Alarm on/off awitch
Pulse output
Memory recall
Alarm
(preset function)
Other functions
mm/s measurement performed with "r/min" units.
Tangen. speed m/min (KS-200)
Tangen. speed mm/s (KS-100)
RESET switch = RECALL switch
NORMAL measurement
MAX measurement
MIN measurement
MODE Switch
KS-300
Use
MODE Switch
NORMAL measurement
MAX measurement
MIN measurement
Contact tip
RESET switch = RECALL switch
UNIT Switch
r/min or r/s
m/min
Period, s
Count (no max/min)
RPM
Tangen. speed
Period
Count
MODE Switch
NORMAL measurement
MAX measurement
MIN measurement
7.
OPERATION GUIDE
8.
OTHER FUNCTIONS
8.1 Pulse Output
Non-contact method ......... One pulse is output each time the
sensor receive the reflected light.
Contact method ................ One pulse is output each time the
shaft under measurement is totated.
① The PULSE OUT switch is used to select the pulse out format
from either positive logic or negative logic.
② The pulse output is provided each time the reflected light from
a rotating body is detected by the sensor.
③ The pulse output is available for all the measurement modes
and units.
④ The pulse output is used as a timing clock signal for rpm analysis using the CF-1200 analyzer or similar product. The connection between the pulse output connector and the CF-1200
or similar product is made by using the AX-1200 pulse output
cable.
● Take care that the AX-1200 pulse output cable does not be-
come tangled around the rotating body, as this can be extremely dangerous.
● Do not apply any voltage to the pulse output connector.
23
8.2 Memory Recall
① In cases in which it would be hazardous to perform a measurement while viewing the display, or in locations which make
viewing the display difficult, use the memory recall function.
② To use this function, simply switch power off during a measurement. Then bring the HT-5200 somewhere you can read
the display easily, and press the RECALL switch to recall to
the display the value on the display at the instant the power
was switched off.
③ If a dark location makes reading the display difficult, use backlighting.
8.3 Alarm Function Setting
For example, suppose we wish to sound a beeper when the rpm
exceeds 6700 r/min.
① Remove the battery cover and remove the batteries if they were
installed to reveal the alarm on/off switch and the 3 preset
switches at the bottom of the battery compartment.
23
23
456
78
78
901
23
456
901
456
78
(ON)
901
(OFF)
Alarm
on/off switch
Preset switches
② Using a screwdriver, set the preset switches (from the left) to
0, 6, and 7.
24
③ Slide the alarm on/off switch to the ON position.
23
23
456
78
78
901
23
456
901
456
78
(ON)
901
(OFF)
The setting ranges are as follows.
In units of r/min :
100 to 99900 r/min, with switch weights (from the left) of
10000 r/min, 1000 r/min, and 100 r/min.
In units of r/s :
1.00 to 999.0 r/s, with switch weights (from the left) of
100 r/s, 10 r/s, and 1 r/s.
④ If you are using batteries for power, reinstall the batteries and
replace the battery cover.
After the above setting has been made, when an actual measurement is performed, the following will occur.
● At less than 6700 r/min, the (((・))) mark will appear in
the display.
● At 6700 r/min and higher, the (((・))) mark will appear in
the display with the H
sound.
25
indicator, and a beeper will
9.
OPERATING PRECAUTIONS
9.1 Non-Contact Measurements
(1) Measurement Distance
The maximum measurement distance of 30 cm as noted in the
specifications is applicable for a 12 mm×12 mm reflective mark
on a flat surface and light shone on the reflective mark perpendicularly to the mark. Under the following conditions, the maximum usable measurement distance will be shorter.
① When the reflective mark is applied to a curved surface (e.g.,
when the reflective mark is applied to a shaft.)
② When the reflective mark is cut smaller than its normal size.
③ When the light is shone on the reflective mark at a angle removed from the perpendicular.
(2) Method of Shining Light Onto the Reflective Mark
The HT-5200 measures r/min by the existence or lack of reflected
light. Detection will, therefore, not be possible if light is constantly shone on the reflective mark. Shine the light from the HT5200 onto the rotating body so that during each revolution of this
body, there is a time in which the light is striking the reflective
mark and a time in which the light does not strike the reflective
mark.
Particular care is required when the reflective mark is applied near
the center of the axis rotation.
[Proper Application]
(There is a time at which red light is
striking the reflective mark and a time
when it does not.)
Red light
Reflective mark
Center of
rotation
Rotating body
26
[Improper Application]
(Light is always striking the reflective mark.)
(3) Applying the Reflective Mark
① Ratio of the part onto which the reflective mark is applied
to the circumference.
Apply the reflective mark so that ratio of the part X onto
which the reflective mark is applied to the circumference
Y of the rotating body is below the following values.
0 to 80,000 r/min
: X/Y < 0.5 (less than 1/2 of the
circumference)
80,000 to 100,000 r/min : X/Y < 0.4 (less than 2/5 of the
circumference)
1/2
2/5
Reflective
mark
② Position of reflective mark application
In order for the HT-5200 to be able to detect the rotational
signal, light reflected from the reflective mark must have a
duration of at least approximately 0.2 ms.
The relation of the rpm range to the reflective mark position (in terms of radial distance from the center of rotation)
is shown in the figure graph below.
Radius r
(mm)
60
60
40
20
12
6
0
1
3
5
RPM
27
7
10×(104)
(r/min)
< Definition of radius r >
The radius r has the following meanings.
[ Applied to flat surface ]
[ Applied to shaft ]
Reflective mark
Reflective mark
Radius r
Rotating
body
Center of
rotation
Rotating
body
Center of
rotation
If the reflective mark cannot be applied at a location within the
shaded portion of the graph, apply two or more marks, overlapping them so that they join to serve as one mark.
(4) Cases in Which the Reflective Mark Flies off at High Speed
At high speeds such as 10,000 r/min, if the reflective mark flies
off, apply the reflective mark with a separate adhesive.
In doing this, take care that the upper limit of the ratio of reflective mark to circumference (indicated in ① ) is not exceeded.
(5) Cases in Which Application of the Reflective Mark is Not Possible
If for some reason it is not possible to apply the reflective mark to
the rotating body, provided another means of establishing a lightreflective and non-light-reflective portion on the rotating body.
Even in this case, the conditions noted in (3) must be satisfied.
In addition, be aware that the usable measurement distance and
angle will differ in comparison with measurement using an actual
reflective mark applied to the rotating body.
28
9.2 Measurements Using a Contact Adaptor
Using a contact adaptor it is not possible to measure the tangential speed of a rotating body as is done with the non-contact method
by setting the diameter of the rotating body on the preset switches.
Be sure to observe
the following safety
warnings.
In making contact-type measurements, a risk is involved by virtue of the fact that the HT-5200 is pressed directly up against a
rotating body. When making measurements, always observe the
precautions listed below.
① When mounting the contact adaptor to the HT-5200, insert the
adaptor securely onto the detector section of the HT-5200,
securing it tightly with a screw. Also be sure that measurement pressures listed in the figures below are not exceeded.
Measurement
pressure
30 N (approx. 3 kgf) max.
Measurement
pressure
30 N (approx. 3 kgf) max.
(Avoid applying pressure
in any direction other
than that shown here.)
Using a Contact Tip
Using a Circumferential Ring
② When making contact-type measurements, if the over-range
indicator appears in the display, terminate the measurement
immediately.
29
③ The contact tip should be accurately positioned in the depression at the end of the rotating shaft being measured.
If it is at an angle, excessive stress might be placed on both the
contact adaptor and the rotating shaft.
④ When making measurements at high speeds of over 5,000
r/min, hold the HT-5200 with both hands to ensure that
the contact tip remains in good contact with the center
of the rotating shaft throughout the measurement. If it
slips away from the center of the shaft, excessive force will be
applied to the HT-5200.
⑤ In high-speed measurements of 10,000 r/min and higher, when
pressing the contact tip up against the rotating body, if there is
eccentricity between the center of rotating and the shaft center, an extremely hazardous condition will occur. In particular
if the contact tip deteriorates or if the method of pressing it up
against the rotating body is not proper, it might fly off, causing injuries. We recommend non-contact measurement in highspeed measurements.
⑥ During a measurement, if the RECALL switch is operated,
even if the measured rpm is below 10,000 r/min, be sure to
hold the HT-5200 with both hands while pressing the switch.
Use switches other than the RECALL switch (e.g., UNIT and
MODE switches) before measurements, and avoid making
switch operations during measurements.
⑦ Measurements with a circumferential ring are specified up to
400 m/min. (mm/s). From a safety standpoint as well, it is
recommended that tangential speed measurements be made
only up to this specified speed.
30
10. OVERRANGE DISPLAY
① Non-contact type measurements
When the measured value exceeds 99999 r/min, 999.99 r/s, or
9999.9 m/min., the value will be fixed on the display, the
OVER
indicator will appear in the display, and a beeper
will sound as a warning.
② Contact measurements
When the measured value exceeds 20000 r/min, 400.00 r/s, or
2000.0 m/min, the value will be fixed on the display, the
OVER
indicator will appear in the display, and a beeper
will sound as a warning.
③ In making period measurements, when the rpm is 6 r/min, the
OVER
indicator appears in the display.
31
11. TROUBLESHOOTING
Should a failure occur in your HT-5200, return it to your sales
representative or nearest Ono Sokki sales office. However, before assuming that repair is necessary, reread this manual carefully, and verify the operation of the HT-5200 once again.
Pay particular attention to the following points.
Symptom
● No display
appears
Check
Correction
① Batteries installed ① Install batteries.
?
② Batteries installed ② Reinstall batteries with
with correct (+)
the proper polarity.
and (-) polarities ?
③ Batteries worn ③ Replace all batteries
down ?
with new ones.
④ AC adaptor in- ④ Plug AC adaptor into
serted into AC
AC outlet.
outlet ?
◆ Non-contact ① Is there a reflec- ① Apply a reflective mark
method
tive mark ap-
to the rotating body un-
● Displayed
plied to the ro-
der measurement.
value is not the
tating body ?
actual value
② Is the light projector shining
② Shine light from the
light projector onto the
reflective mark.
light on reflective mark ?
③ Is the method of ③ Shine the light on the
shining light on
reflective mark so that
the reflective
the light strikes the
mark proper ?
mark just one time each
rotation.
32
Symptom
Correction
Check
④ In the distance ④ The distance range over
which measurement is pos-
proper ?
sible is 20 to 300 mm.
Keep the distance in this
range. However, depending
upon how the reflective
mark is applied (e.g., when
it is applied to a narrow
shaft), measurement as far
away as 300 mm might not
be possible.
⑤ Does the rotat- ⑤ Take measures such as winding body have a
ing black tape around the shaft
shiny, plated
or shining the light onto the
surface ?
shaft at an angle.
◆ Non-contact ① Are scratches ① Take measures such as
method
and unevenness
winding black tape around
● Displayed
in the surface of
the shaft.
value is not the
the rotating body
actual value
causes random
reflections ?
② Have 2 reflec- ② Reapply them without a
tive marks been
space between them.
applied with a
space between
them ?
③ Is the distance ③ Maintain the proper disproper ?
tance.
33
Symptom
◆ Contact
method
● Displayed
Correction
Check
① Is the contact tip ① Replace the contact tip.
worn and disfigured?
value is not the ② Is there slippage ② Hold the HT-5200 securely
actual value
between the ro-
so that slippage does not oc-
tating body and
cur.
the contact tip?
12. SPECIFICATIONS
12.1 Measurement Section
Measurement units
Rotational speed(r/min、r/s),
tangential speed(m/min.),
accumulated count, period(ms)
Measurement ranges
Non-contact measurement:
6 to 99,999 r/min
0.10 to 999.99 r/s
0.6 to 9999.9 m/min
0 to 99999 counts
0.6 to 9999.9 ms
Contact measurement:
6 to 20000 r/min
0.10 to 400.00 r/s
0.6 to 400.0 m/min
0 to 99999 counts
0.6 to 9999.9 ms
Number of display digits
5
Display type
5-digit LCD(liquid-crystal
display)with backlighting
Time base
Quartz crystal oscillator(32.768
kHz)
34
Measurement display time
1s, automatically updated(except
2 times the maximum period for 60
r/min and below)
Accuracy
6 to 11,999 r/min: ± 1 r/min
12,000 to 29,999 r/min: ±2 r/min
30,000 to 49,999 r/min: ±4 r/min
50,000 to 99,999 r/min:±10 r/min
0.10 to 199.99 r/s: ± 0.02 r/s
200.00 to 499.99 r/s: ± 0.4 r/s
500.00 to 999.99 r/s: ± 0.06 r/s
In the case of tangential speed, the
accuracy depends upon the rpm
speeds of the rotating body.
(Example)
For a diameter of 10 cm, if the tangential speed is 1000 m/min., the
r/min corresponding to this speed
is 3183. 1 r/min, and the error
would be ±1 r/min. Therefore the
tangential speed error would be
± 1[r/min]× 10[cm]×Π
=±0.314[m/min]±0.3[m/min]
(assuming that there is no error in
diameter)
* The above errors are all for noncontact measurement, but do not
include the error caused by hand
movement. In contact measurements, contact tip slippage, error,
and other factors would have to be
added.
35
Overrange indication
Non-contact measurement:
When the measured value exceeds
99999 r/min, 999.99 r/s, or 9999.9
m/min., the value will be fixed on
the display, the OVER indicator will appear in the display, and
a beeper will sound as a warning.
Contact measurement:
When the measured value exceeds
20000 r/min, 400.00 r/s, or 2000.0
m/min, the value will be fixed on
the display, the OVER indicator will appear in the display, and
a beeper will sound as a warning.
12.2 Detection Section
Detection method
Visible light reflection
Reflection detection distance 20 to 300 mm(Refer to the graph
on the following page for the relationship between the angle and the
distance.)
Light source
Red light-emitting diode
Light receiver
Phototransistor
Detection mark
1 reflective mark per rotation
36
(The 0°point is taken as the angle at which the light axis and
reflective mark are mutually perpendicular.)
-10˚
0˚
+10˚
HT-5200
30 (cm)
-30˚
+30˚
20 (cm)
-50˚
+50˚
-70˚
+70˚
-90˚
+90˚
10 (cm)
12.3 Pulse Output
Output voltage
Hi +4.5 V min. (load resistance: 100 k min.)
Lo +0.5 V max. (sink current: 2 mA)
Output impedance Approx. 50
Output connector
Pin jack (2.5 mm dia.)
37
12.4 Storage Time
The last measured value, maximum value, and minimum value
are stored in memory until batteries wear down or until supply of
current from an AC adaptor is interrupted.
12.5 Calculation Method
60 r/min or higher
Gate calculation
Below 60 r/min
Period calculation
Measurement down to 6 r/min is possible, and if there is no signal
for 1 second, since 0 r/min is displayed, the CPU performs a prediction calculation.
12.6 General Specifications
Power requirements
Type AA batteries
Continuous operation time:
(using manganese batteries at 20 ℃)
Approx. 40 hours
Approx. 10 hours
(using backlighting)
Operation is also possible from the
PB-703 AC Adaptor(option).
Battery low indicator
BATT
appears in the display
when the battery voltage drops below approximately 3.3 V.
Operating temperature range 0 to + 40 ℃
Storage temperature range
− 10 to + 55 ℃
Dimensions
160 × 60 × 36 mm(HT-5200
alone)
218×60×47 mm
(HT-5200 with
contact adaptor mounted)
38
Weight
Approx. 130 g(not including
batteries)
Approx. 185 g(including contact
adaptor but not batteries)
13. OUTER DIMENSIONS
(20.5)
Contact Adaptor
Camera tripod thread 1/4, 6mm deep
MAX MIN
H
BATT
r/s r/min
ms
160
ON
IND
HOLD
HT-5200
DIGITAL TACHOMETER
OFF
LIGHT
ON
130
218
OVER
COUNT m/min
PERIOD
RECALL
MODE
UNIT
ONOSOKKI
60
31.5
11
36
PULSE
OUT
PULSE
OUT
DC IN
14. STORAGE METHOD
The storage temperature range for the HT-5200 is − 20 to + 60
℃. Avoid storing it in locations subject to particularly high or
low temperatures. Also avoid locations having high humidity, and
locations which are subject to direct sunlight. Store the HT523900 in a location having good ventilation.
If the HT-5200 is to be left for a long period unused, be sure to
remove its batteries to prevent damage, should battery fluid leakage occur.
39
15. WARRANTY
1. This product is covered by a warranty for a period of one year
from the date of purchase.
2. This warranty covers free-of-charge repair for defects judged
to be the responsibility of the manufacturer, i.e., defects occurred while the product is used under normal operating conditions according to descriptions in this manual and notices on
the unit label.
3. For free-of-charge repair, contact either your sales representative or our sales office nearby.
4. The following failures will be handled on a fee basis even during the warranty period.
(a) Failures occurring through misuse, mis-operation, or modification
(b) Failures occurring through mishandling (dropping) or transportation
(c) Failures occurring through natural calamities (fires, earthquakes, flooding, and lightening), environmental disruption, or abnormal voltage.
* For repairs after the warranty period expired, contact your
sales representative or our sales office nearby.
16. OMISSION OF TEST QUALIFICATION
ISSUANCE
Since this product has been tested through a series of strict inspections and a complete program of quality control, issuance of
the test qualification has been omitted.
40
B00000285/IM93032401(3) 042(MS)010