LT4H Timers Specifications
Specifications for this product appear below.
LT4H / LT4H-L Digital Timers (DIN 48)
| Type | Ralay output type | Transistor output type | ||||
|---|---|---|---|---|---|---|
| Item | AC type AC/DC type | DC type | AC type AC/DC type | DC type | ||
| Rating | Rated operating voltage | 100 to 240 V AC, 24 V AC, 24 V AC/DC | 12 to 24 V DC | 100 to 240 V AC, 24 V AC, 24 V AC/DC | 12 to 24 V DC | |
| Rated frequency | 50/60 Hz common | - | 50/60 Hz common | - | ||
| Rated power consumption | Max. 10 V A | Max. 3 W | Max. 10 V A | Max. 3 W | ||
| Rated control capacity | 5 A, 250 V AC (resistive load) | 100 mA, 30 V DC | ||||
| Time range | 9.999 s, 99.99 s, 999.9 s, 9999 s, 99 min 59 s, 999.9 min, 99 h 59 min, 999.9 h (selected by DIP switch) | |||||
| Time counting direction | Addition (UP)/Subtraction (DOWN) (2 directions selectable by DIP switch) |
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| Operation mode | A (Power ON delay 1), A2 (Power ON delay 2), B (Signal ON delay), C (Signal OFF delay), D (Pulse one-shot), E (Pulse ON delay), F (Signal Flicker), G (Totalizing ON delay) (selectable by DIP switch) | |||||
| Start/Reset/Stop input | Min. input signal width: 1 ms, 20 ms (2 directions by selected by DIP switch) (The 8-pin type does not have a stop input.) | |||||
| Lock input | Min. input signal width: 20 ms (The 8-pin type does not have a lock input.) | |||||
| Input signal | Open collector input Input impedance: Max. 1 kΩ; Residual voltage: Max. 2 V Open impedance: 100kΩ or less, Max. energized voltage: 40V DC |
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| Indication | 7-segment LCD (LT4H, LT4H-L common), Elapsed value (backlight red LED), Setting value (backlight yellow LED) | |||||
| Power failure memory method | EEP-ROM (Min. 105 overwriting) | |||||
| Time accuracy (max.) | Operating time fluctuation | ± (0.005 % + 50 ms) in case of power on start ± (0.005 % + 20 ms) in case of input signal start [Operating voltage: 85 to 110% Temperature: -10 to +55°C/ +14 to +131°F Min. input signal width: 1ms] |
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| Temperature error | ||||||
| Voltage error | ||||||
| Setting error | ||||||
| Contact | Contact arrangement | Timed-out 1 Form C | Timed-out 1 Form A (Open collector) | |||
| Contact resistance (Initial value) | 100 mΩ (at 1 A 6 V DC) | - | ||||
| Contact material | Ag alloy/Au flash | - | ||||
| Life | Mechanical (contact) | Min. 2 × 107 ope. (Except for switch operation parts) | - | |||
| Electrical (contact) | 1.0 × 105 ope. (At rated control voltage) | Min. 107 ope. (At rated control voltage) | ||||
| Electrical | Allowable operating voltage range | 85 to 110 % of rated operating voltage | ||||
| Breakdown voltage (Initial value) |
2,000 Vrms for 1 min: Between live and dead metal parts (11-pin) 2,000 Vrms for 1 min: Between input and output 1,000 Vrms for 1 min: Between contacts |
2,000 Vrms for 1 min: Between live and dead metal parts (Pin type) 2,000 Vrms for 1 min: Between input and output |
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| Insulation resistance (Initial value) |
Min. 100 MΩ: Between live and dead metal parts Between input and output Between contacts (At 500V DC) |
Min. 100 MΩ: Between live and dead metal parts Between input and output (At 500V DC) |
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| Operating voltage reset time | Max. 0.5 s | |||||
| Temperature rise | Max. 65° C (under the flow of nominal operating current at nominal voltage) | - | ||||
| Mechanical | Vibration resistance | Functional | 10 to 55 Hz: 1 cycle/min single amplitude of 0.35 mm .014 inch (10 min on 3 axes) | |||
| Destructive | 10 to 55 Hz: 1 cycle/min single amplitude of 0.75 mm .030 inch (1 h on 3 axes) | |||||
| Shock resistance | Functional | Min. 98 m 321.522 ft./s2 (4 times on 3 axes) | ||||
| Destructive | Min. 294 m 964.567 ft./s2 (5 times on 3 axes) | |||||
| Operating conditions | Ambient temperature | -10°C to 55°C/ +14°F to +131°F | ||||
| Ambient humidity | Max. 85 % RH (non-condensing) | |||||
| Air pressure | 860 to 1,060 h Pa | |||||
| Ripple rate | - | 20 % or less | - | 20 % or less | ||
| Connection | 8-pin/11-pin/screw terminal | |||||
| Protective construction | IP66 (front panel with rubber gasket) | |||||
LT4H-W Digital Timers (DIN 48)
| Item | Ralay output type | Transistor output type | ||||
|---|---|---|---|---|---|---|
| AC type | DC type | AC type | DC type | |||
| Rating | Operating voltage | 100 to 240 V AC, 24 V AC | 12 to 24 V DC, 24 V AC | 100 to 240V AC, 24 V AC | 12 to 24 V DC, 24 V AC | |
| Frequency | 50/60 Hz common | - |
50/60 Hz common | - |
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| Power consumption | Max. 10 V A | Max. 3 W | Max. 10 V A | Max. 3 W | ||
| Control capacity (resistive) | 5 A, 250 V AC (Resistive load) | 100 mA, 30 V DC | ||||
| Time range | 99.99 s, 999.9 s, 9999 s, 99 min 59 s, 999.9 min. 99 h 59 min, 999.9 h (selected by DIP switch) | |||||
| Time counting direction | Addition (UP)/Subtraction (DOWN) (2 directions selectable by DIP switch) | |||||
| Operation mode | Pulse input: Delayed one shot, OFF-start flicker or ON-start flicker Integrating input: Delayed one shot, OFF-start flicker or ON-start flicker | |||||
| Signal/Reset/Stop input | Min. input signal width: 1 ms, 20 ms (2 directions by selected by DIP switch) | |||||
| Lock input | Min. input signal width: 20 ms | |||||
| Input signal | Open collector input Input impedance: Max. 1 kohm; Residual voltage: Max. 2V Open impedance: 100 kohm or less, Max. energized voltage: 40 V DC | |||||
| Indication | 7-segment LCD, Elapsed value (backlight red LED), Setting value (backlight yellow LED) | |||||
| Power failure memory method | EEP-ROM (Min. 105 overwriting) | |||||
| Time accuracy (max.) | Operating time fluctuation | ±(0.005%+50 ms) in case of power on start ±(0.005%+20 ms) in case of reset or input signal start [Operating voltage: 85 to 110% Temperature: -10 to +55°C +14 to +131 ° F Min. input signal width: 1ms] | ||||
| Temperature error | ||||||
| Voltage error | ||||||
| Setting error | ||||||
| Contact | Contact arrangement | Timed-out 1 Form C | Timed-out 1 Form A (Open collector) | |||
| Initial contact resistance | 100 mohm (at 1 A 6 V DC) | - |
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| Contact material | Ag alloy/Au flash | - |
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| Life | Mechanical | 2.0 × 107ope. (Except for switch operation parts) | - |
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| Electrical | 1.0 × 105ope. (At rated control voltage) | 1.0 × 107ope. (At rated control voltage) | ||||
| Electrical | Operating voltage range | 85 to 110% of rated operating voltage | ||||
| Initial breakdown voltage | 2, 000 Vrms for 1 min: Between live and dead metal parts (11-pin) 2, 000 Vrms for 1 min: Between input and output 1, 000 Vrms for 1 min: Between contacts | 2, 000 Vrms for 1 min: Between live and dead metal parts (Pin type) 2, 000 Vrms for 1 min: Between input and output | ||||
| Initial insulation resistance (At 500 V DC) | Min. 100 Mohm: Between live and dead metal parts Between input and output Between contacts | Min. 100 Mohm: Between live and dead metal parts Between input and output | ||||
| Operating voltage reset time | Max. 0.5 s | |||||
| Temperature rise | Max 65°C (under the flow of nominal operating current at nominal voltage) | |||||
| Mechanical | Vibration resistance | Functional | 10 to 55 Hz: 1 cycle/ min single amplitude of 0.35 mm .014 inch (10 min on 3 axes) | |||
| Destructive | 10 to 55 Hz: 1 cycle/ min single amplitude of 0.75 mm .030 inch (1 h on 3 axes) | |||||
| Shock resistance | Functional | Min. 98 m 321.522 ft./s2(4 times on 3 axes) | ||||
| Destructive | Min. 294 m 964.567 ft./s2(5 times on 3 axes) | |||||
| Operating conditions | Ambient temperature | -10°C to 55°C + 14 ° F to + 131 ° F | ||||
| Ambient humidity | Max. 85% RH | |||||
| Air pressure | 860 to 1, 060 h Pa | |||||
| Ripple rate | - |
20% or less | - |
20% or less | ||
| Connection | 8-pin/11-pin/screw terminal | |||||
| Protective construction | IP66 (front panel with rubber gasket) | |||||
