Ono Sokki GS-251 Instruction Manual

Linear Gauge Sensor
GS-251
Instruction Manual
Thank you for your selection of Ono Sokki's linear gauge sensor. To ensure
that you get the most out of your new instrument, we strongly recommend that
you read and follow the instructions in this manual.
Before this unit was shipped from the factory, it was subjected to a series of
severe inspections to verity that it operates properly.
When unpacking the unit, verify that no physical damage has occurred during
transit and, after reading this manual thoroughly, check the operation of the
unit. Should damage have occurred or the unit not operate in accordance with
specifications, contact your nearest representative.
■ Operating Precaution
● If you disassemble the sensor, failure may result. If you open the cover, dust
such as chips and cutting oil might intrude to cause a failure. Therefore, never
open the cover.
● Oil and dust are detrimental to the spindle. Do not oil it or touch it. Spindle
fails to operate smoothly if oil or stains are allowed to adhere. To remove a
stain on the spindle, wipe it off with a piece of soft cloth slightly dampened
with alcohol. Do not use benzine, thinner or gasoline.
● The interface between the spindle and the bearing is machined with such
precision that no lateral force [maximum allowable lateral pressure : 0.98 N
(100 gf ) or torsional force should be applied to the spindle. Nor should the
stem be squeezed more than necessary.
● To replace the contact tip, wind
a rubber band round the spindle,
as shown in the drawing and turn
the contact tip while holding the
spindle firmly. Take sufficient
care not to allow torsional force
to be applied to the spindle.
● The maximum response speed of the spindle is 1 m/s ( at 20℃). If it is moved
at a speed greater than the allowed limit, a condition causing possible
measurement error. When the spindle is to be applied to the measuring object,
bring the spindle within 1 mm above the surface to be contacted before putting
down the spindle.
● Since the sensor is made of high precision components, do not disassemble
it or handle it roughly.
● Care should be taken not to store the sensor in a high humidity place for a
long period.
■ Mounting Method
There are two methods of holding the sensor. When mounting to a fixture,
always be sure that the mounting is made so that the direction of spindle move-
ment and the longitudinal direction of the object being measured agree and that
the spindle makes contact at the proper position.
① ②
φ6.5±0.1 mm
① Fixing method using a lug
Pass a bolt through the 6.5 ± 0.1 mm dia. Hole of the lug on the back cover
and fasten it tightly to the holding hole.
If it is insufficiently tight, the sensor might be tilted towards the bottom about
the ears. Therefore, it is recommended to use a flat washer and a spindle washer
on each side.
The lug can be turned by 90°in angle by removing the back cover machine
screw.
② Fixing method with grasping stem
0
The stem has a diameter of mm. 8
-0.03
Use the optional gauge stand (ST series). When making another stand, consult
the drawing above.
＋0.03
φ8
0
t=16mm
Tightening screw
Care should be taken
not to apply excessive
force to the stem.

■ Specifications

Measuring range 25 mm
Resolution 10 μ m
Measuring accuracy 5 μ m (20℃)
Maximum response speed 1 (4) *m/s
Measuring force 2.55 N (260 gf) max.
When the spring is off : 0.49 N (50 gf) max.
Downward only (release unusable)
Power supply voltage 4.5 to 6 VDC
Current consumption Approx. 30 mA (at 5 VDC)
Output signal 2-phase rectangular wave signal
Phase difference 90°± 20°(at 5 VDC)
Hi : 4.5 V to 6 V (when not loaded)
Lo : 0.4 V max.
Signal１
Signal２
Terminal connector R03-PB6M
*Note that signal
common and case shield
are not short-circuited
Power supply input +
in the sensor.
Power supply input -
Cable length 1.9 m
Extendable to 30 m (response speed : 0.5 m/s)
Operating temperature range ＋ 5℃ to ＋ 40℃
Storage temperature range − 10℃ to ＋ 55℃
Weight Approx. 330 g (including cable)
*It is available when our digital gauge counter is used.
The value, whcih is written at ( ), is maximum response speed when it is com-
bined with our model DG-4140/4160.
■ Options
● Finger lift (AA-969)
● Lift lever (AA-971)
● Mechanical release (AA-813) ● Air release (AA-816)
● Dustproof rubber cover (AA-843) ● Back cover without lug (AA-968)
● Extension spindle (AA-844 / 845) ● Contact tips
● Contact-tip adapter for dustproof rubber cover (AA-829)
● Gauge stands (ST-011 / 022 / 044B / 005)
When ST-044B is used, stand bush (AA-891) is required
■ Outside Drawing
13.5
Signal cable
（Length : 1.9ｍ）
ONOSOKKI
GS-251
Release cover
20
When finger lift is mounted
■ 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.
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.
*Outer appearance and specifications are subject to change without prior notice.
HOME PAGE: http://www.onosokki.co.jp/English/english.htm
P P = 40μm
When pushing in the spindle When pulling out the spindle
Sensor
Connector
Blue
Signal 1 A
White
B
Signal 2
Red
C
Power supply
D
Black
Signal common E Signal common
Power supply input -
Green
F
Case shield
29 20
ø10
23.5
10.5
0
5
-0.05
5.3
0
8
-0.03
Stem
(25.5)
ø5
Spindle
Contact tip
Warranty
1-16-1 Hakusan, Midori-ku,Yokohama 226-8507, Japan
Phone : 045-935-3976
Fax : 045-930-1906
E-mail : overseas@onosokki.co.jp
Counter
Signal 1
Signal 2
output +