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LC2H Total Electronic Counters

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Panel Mounting Type

Type Standard type Backlight type Standard type
Item Non-voltage input Voltage input Voltage input Free voltage type
No. digits 8 digits
External power supply Not required (built-in battery)
Max. counting speed 2 kHz/30 Hz (Switchable by switch) 30 Hz (Note 2)
Count input Min. input signal width (ON: OFF = 1:1) 0.25 ms/16.7 ms (Switchable by switch) 16.7ms
Input method (signal) Non-voltage input using contacts or open collector connection High level: 4.5 to 30 V DC
Low level: 0 to 2 V DC
High level:24 to 240 V AC/DC
Low level:0 to 2.4 V AC/DC
Input impedance When shorted:Max. 10 kΩ
When open:Max. 750 kΩ
Approx. 4.7kΩ -
Residual voltage Max. 0.5 V - -
Reset input Min. input signal width 200ms
Input method (signal) Non-voltage input using contacts or open collector connection High level: 4.5 to 30 V DC
Low level: 0 to 2 V DC
Non-voltage input using contacts or open collector connection
Input impedance When shorted:Max. 10 kΩ
When open:Max. 750 kΩ
Appox. 4.7 kΩ When shorted:Max. 10 kΩ
When open:Max. 750 kΩ
Residual voltage Max 0.5 V - Max 0.5 V
Display method 7-segment LCD 7-segment LCD 7-segment LCD
With green/red backlight
7-segment LCD
Breakdown voltage (initial) Between charged and uncharged parts: 1,000 V AC for 1 minute. Between charged and uncharged parts: 2,000 V AC for 1 minute.
Insulation resistance (initial) Min. 100 MΩ (measured at 500 V DC) Measurement location same as for break down voltage.
Backlight power - 24 V DC (±10%) -
Protective construction (Note 3) IEC Standard IP66 (only panel front: when using rubber gasket)
Accessories (Note 3) Rubber gasket, mounting bracket
Battery life 7 years (at 25°C/ 77°F) Note 1 6 years (at 25°C/ 77°F)
Notes) 1. The value given for battery life is calculated based on continuous operation (count input signal ON/OFF = 1:1), therefore, this value is not guaranteed. Also, battery life is decreased 30% when operation is continuous with 2 kHz count inputting in 2 kHz mode.
2. Operation is at 25 Hz when using 24 V AC.
3. Only for installation frame type.

PC Board Mounting Type

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 ?A (max. 250 ?A during reset input)
Max. counting speed 30Hz 2kHz
Count input Min. input signal width (ON: OFF = 1:1) 16.7ms 0.25ms
Input method Non-voltage input using contacts or open collector connection
Input impedance When shorted: Max. 10 kΩ
When open: Max. 750 kΩ
Residual voltage Max. 0.5 V
Reset input Min. input signal width 10ms
Input method Non-voltage input using contacts or open collector connection
Input impedance When shorted: Max. 10 Ω
When open: Max. 750 Ω
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) 1Min. 100 MΩ (measured at 500 V DC) Measurement location same as for break down voltage.

Common

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/s2 (4 times on 3 axes)
Destructive Min. 294 m/s2 (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 (non-condensing)

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