3
FID-550 SERIES
■ 5.3 ELECTRICAL
Location Accuracy: ±2.5mm Measured over 9 points (See note 1)
Linearity: 1.5%
Current Consumption: 20mA max at DC 5V when applying 5VDC between pins 3 & 5
Switch Bounce (Chattering): 10ms min when using the silicon rubber measurement rod.
Insulation resistance: 10MΩ minimum at 25KV DC applied between pins 3 & 7 or
between 5 and 7
Dielectric Strength: 25KV DC for 1 minute
Note 1:
Measurement condition of linearity is corrected within the
control IC. In general the location accuracy is specified
as follows:
Actual co-ordinate point - theoretical co-ordinate point
= location accuracy.
In general a 9 point co-ordinate calibration system is used
to adjust the micro controller accuracy. (20 point can be
used in combination with an EEPROM design).
Note 2:
Pins 3, 5 and 7 are the glass and film connection points.
■ 5.4 ENVIRONMENTAL
Operating Temperature (*): -5˚C to 60˚C
Storage Temperature: -30˚C to 70˚C
Operating Humidity: 20% to 90% RH with a Maximum wet bulb temperature of 38˚C
Storage Humidity: 10% ~ 90% RH with a Maximum wet bulb temperature of 38˚C
Chemical Resistance: Coating with the following chemicals and storing at room temperature for 2
hours gives no problems. 10% NaCl-water solution, ethyl-acetate, ethyl-
alcohol, toluene, methyl-ethyl-ketone.
■ 5.5 PEN LIFE
Character Writing life: 1,000,000 words minimum
Touch Input life : 10,000,000 times minimum
Note 1:
Words are written in the notes area and the size of the word is
7.5mm x 6.75mm. A word is any Alphabet / Number / Mark.
The pen is as shown below and applies a force of 250g.
A failure is judged to happen when the current consumption or
insulation resistance or dielectric strength are not met as
shown in 5.3. The location accuracy with 9 point calibration
must be ±4.4 mm max.
9 mm
10 mm
Notes
Effective input area
Distance
Co-ordinate Point
Theoretical
Actual
Error
3.5
Ø6.0
Ø2.0
9.01.0
110.0±1.03.01.5
Ø 4.6
Ø 2.0
R 0.8