LC2H
70
2. PC board mounting type
3. Common
Type
PC board mounting type
Item
Input method
Non DC voltage input
No. digits
8 digits
Rated operation voltage
3 V DC
Allowable operation voltage range
2.7 to 3.3 V DC
Current consumption
Max. 30 µA (max. 250 µA during reset input)
Max. counting speed
2 kHz
30 Hz
Count
input
Min. input signal width
(ON: OFF = 1:1)
0.25 ms
16.7 ms
Input method
Non-voltage input using contacts or open collector connection
Input impedance
When shorted: Max. 10 k
When open: Max. 750 k
Residual voltage
Max. 0.5 V
Reset
input
Min. input signal width
10 ms
Input method
Non-voltage input using contacts or open collector connection
Input impedance
When shorted: Max. 10 k
When open: Max. 750 k
Residual power
Max. 0.5 V
Break down voltage (initial)
Between charged and uncharged parts: 1,000 V AC for 1 minute.
Insulation resistance (initial)
Min. 100 M (measured at 500 V DC) Measurement location same as for break down voltage.
Type
Panel mounting/PC board mounting types
Item
Vibration resistance
Functional
10 to 55 Hz (1 cycle/min.), single amplitude: 0.15 mm
.006 inch
(10 min. on 3 axes)
Destructive
10 to 55 Hz (1 cycle/min.), single amplitude: 0.375 mm
.015 inch
(1 hr. on 3 axes)
Shock resistance
Functional
Min. 98 m/s
2
(4 times on 3 axes)
Destructive
Min. 294 m/s
2
(5 times on 3 axes)
Operation temperature
–10 to +55°C
+14 to +131°F
(without frost or dew)
Storage temperature
–25 to +65°C
–13 to +149°F
(without frost or dew)
Ambient humidity
35 to 85% RH
Part names
1. Front reset button
This button resets the count value. It does
not work when the lock switch is ON. Be
aware that battery life will decrease if this
switch is used frequently.
2. Lock switch (Refer to chart on right.)
Disable the front reset button.
Note) Turn ON at the LCD side (reset disabled) and
OFF at the terminal block side (reset enabled).
3. Count speed switch (Refer to chart
on right.)
Use this switch to switch the count speed
between 30 Hz and 2 kHz. (On the non-
voltage and voltage input types, 30 Hz is
on the LCD side and 2 kHz is on the ter-
minal block side. Fixed at 30 Hz for free
voltage input type.)
Note) You must press the front reset button when you
change the count speed switch setting.
Notes) 1.
❇
Default setting when shipped.
2. Make the switch setting before installing to panel.
Non-voltage input/voltage input
Free voltage input
Lock switch
(Unit display 1)
Count speed
switch
(Unit display 2)
Count speed switch
Lock switch
Front reset button
RESET
COUNTER
LC2H
(Terminal block side)
(LCD side)
OFF
❇
ON
(Terminal block side)
(LCD side)
2k Hz
30Hz
❇
—
(Fixed at 30 Hz)
LC2H.fm Seite 70 Samstag, 23. März 2002 4:15 16
02/2003
