1.Power Supply
The HR-6800 operates on four Type AAA batteries or the
dedicated AC adapter (option: PB-7080).
If the batteries are consumed and the LOW mark "
"
appears, replace them with new ones. Be sure to replace
all the four batteries at the same time.
Battery replacement procedure
①
While pushing lightly the two (anti-slip) slots of the
battery cover with your finger, slide it to remove.
②
Put the batteries properly in the battery compartment
with the correct polarity (+/-).
③
Put the battery cover.
2.MI-0301 Tripod Attachment Adapter
With the use of the supplied tripod attachment adapter,
the Detector can be installed using a commercially avail-
able tripod.
Attach the Detector to and detach it from the tripod attach-
ment adapter as shown below.
1.Measurement Section
Objects under measurement: Bodies of revolution for dental in-
struments
Bodies of revolution for textile ma-
chines
Bodies of revolution for high-speed
machine tools, etc.
* The object under measurement needs
to be polarized.
Operation method
: Periodic operation method
Measuring time
: 50 ms + Input signal 10-period time
or less
Input frequency range
: 1.6 Hz to 16.666 kHz
Measuring unit
: 10 r/min (rotational speed)
Measuring range
: 100 to 999990 r/min (selectable)
Measurement accuracy : Display value x (
±
0.02 %)
±
1 count
Over range function
: If the measurement value exceeds the
display range, over range "
"
appears.
Upper limit rotation warning function: If the rotational speed ex-
ceeds a preset upper limit, upper limit
warning "
" appears.
Trigger adjustment function: Can be adjusted using the rotary
volume on the right-hand side face of
the HR-6800 unit.
2.Detecting Element
(The sensor is not included in a price of HR-6800)
Detection method
: Electromagnetic induction
DC resistance
: 25 to 40
Ω
[20 ˚C]
Operating temperature range: 0 ˚C to +40 ˚C
Storage temperature range: -10 ˚C to +50 ˚C
Resistance to vibration : 19.6 m/s
2
Resistance to shock
: 490 m/s
2
Mass
: About 50 g (detecting element only)
Dimensions
: 107 x ø14 mm
3.Display Section
Number of display digits : 5 digits
Character height
: 10.2 mm
Indicator
: 7-segment LCD with back light
Refresh time
: About 1 s/0.5 s selectable
4.Measurement Mode
MAX (peak hold) : Displays the maximum value during mea-
surement.
MIN (peak hold)
: Displays the minimum value during mea-
surement.
Others
: Displays the current measurement value.
Memory function : Up to 20 measurement values can be
memorized each time the memory switch is
pressed. Since these values are stored in
non-volatile memory, they are retained even
after the power is turned OFF.
Specifications
5.Analog Output Section
【
REVO
】
Output contents
: Output to the display value of rotational
speed.
Voltage range
: 0 to F.S./0 to 1 V
(The full scale can be set with a setup
parameter.)
Conversion method : 10-bit D/A conversion method
Linearity
:
±
1 % of F.S.
Output refresh time : 50 ms + Input signal 10-period time or
less
Temperature stability :
±
0.05 % of F.S./˚C (ZERO & SPAN)
Setup error
:
±
0.5 % of F.S. (adjustment setup error
at the time of shipment, ZERO & SPAN)
Load resistance
: 100 k
Ω
or more
Output connector
: Super mini jack (ø2.5)
【
SIG
】
Output contents
: Analog output for monitoring after wave-
form shaping of the sensor signal (be-
fore pulse waveform conversion)
Load resistance
: 100 k
Ω
or more
Output connector
: Super mini jack (ø2.5/Commonly used
with REVO output)
6.Pulse Output Section
Output timing
: Outputs one pulse for each signal de-
tection.
(For bodies of revolution with one out-
put per rotation, outputs one pulse per
rotation.)
Output voltage
: Hi level=4.5 V or higher
Lo level=0.5 V or lower
Output logic
: Positive logic pulse
Load resistance
: 100 k
Ω
or more
Output connector
: Super mini jack (ø2.5)
7.General Specifications
Power supply
: Type AAA dry battery (x4) or dedi-
cated AC adapter (PB-7080)
Continuous operating time: About 13 hours (back light OFF)
About 8 hours (back light ON)
(When alkaline batteries are used at
20 ˚C)
Battery LOW display
: Lights up at about 4.5 V.
Operating temperature range: 0 ˚C to +40 ˚C
Storage temperature range: -10 ˚C to +50 ˚C
Operating humidity range: +35 to +85 %RH (without conden-
sation)
Storage humidity range : +35 to +85 %RH (without conden-
sation)
Mass
: About 230 g (HR-6800 unit only, bat-
teries not included)
Dimensions
: 189.5 x 66.0 x 47.5 mm (HR-6800
unit)
Before Use
Battery polarity display
4.Measurement
①
Connect the HR-6800 unit with the Detector using the
supplied cable.
②
Select Type A or B using the Type selector switch on the
side face.
③
Slide the power switch to turn the power ON.
④
Set the number of pulses per rotation (P/R) and other
parameters according to the object under measurement.
⑤
Bring the Detector close to the object under measurement.
Bring the end or its side face of the Detector to the body
of revolution as shown below.
【
Detection at the end
】
【
Detection at side face of the end
】
⑥
During measurement, turn the trigger level adjustment
volume so that the indicator blinks stably and the rotational
speed be displayed. Since the center value of the trigger
level adjustment volume is 5, gradually increase or
decrease the trigger level from 5 to adjust the trigger level.
⑦
Perform measurement.
TRIG LEVEL
5
Options
Storage
The storage temperature range of the HR-6800 is -10˚C
to +50˚C. When you store it, avoid locations where the
temperature is extremely high or low or the humidity is
high. Store it in a place which is well-ventilated and not
exposed to direct sunlight. If you do not use it for a pro-
longed period of time, be sure to remove the batteries to
prevent accident caused by battery leakage, etc.
①
AX-501: Output cord
②
PB-7080: AC adapter
(IN: 100 to 120 VAC, OUT: 6 VDC)
Body of revolution
under measurement
5
〜
20 mm
3.Measurable Bodies of Revolution
The HR-6800 enables measurement of the following bodies
of revolution:
・
A body of revolution with a magnet embedded
Most stabilized measurement is possible.
This system is recommended for a drill for rotation test.
・
A body of revolution partially polarized
A magnet is rubbed on a part of the body of revolution for
polarization before measurement. If the magnetic force
weakens with time, polarization is performed again.
・
A body of revolution with a bumpy shape
Since a magnet is embedded in the Detector of the HR-
6800, whether a body of revolution can be measured
depends on its shape. However, depending on the material
and shape of the body of revolution, a detected signal may
become minute making detection of rotation difficult.
Therefore, if possible, magnet-based detection is
recommended.
Note: Since the Detector has frequency characteristics,
it needs strong magnetic force particularly when
measuring low rotational speed.
Refer to the following rough standard of magnetic
force:
100 r/min: 10 mT or more
10000 r/min: 5 mT or more
100000 r/min: 1 mT or more
Note: Measurement is not possible in places where
strong magnetic field is present around the mea-
suring point.
RANGE
Hi
Lo
−
Type selection
A
B
10,000 to 999,990 r/min
100 to 50,000 r/min
200,000 to 999,990 r/min
Rotational speed range
* When the number of pulses is set to "1"
* Generally, use Type A.
Attachment
Detachment
10
5
〜
20 mm
Applicable Standards
①
CE Marking
EN61326
EN61010-1
: This mark declares the compliance with
EC instructions.
