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Discontinued
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TH8 DC Hour Meters (Discontinued Products)

Rating/ Performance

Type TH833C TH834C
Rating Rated voltage 12 V DC 24 V DC
Usage voltage range 10.2 to 15.6 V DC 20.4 to 31.2 V DC
Measurement time 0 to 9999.9 hours
Min. measurement time 0.1 hour (6 min.)
Power consumption Approx. 1.5 W (With rated voltage applied at 25℃ 77℉)
Electrical
characteristics
Insulation resistance
(initial)
Min. 100 MΩ between charged and uncharged parts (measured at 500 V DC)
Breakdown voltage
(initial)
Between charged and uncharged parts: 2,000 V AC for 1 minute.
Temperature rise Max. 55℃ 131℉ (measured at rated voltage and resistance law)
Mechanical
characteristics
Functional vibration resistance 10 to 55 Hz (1 cycle/min.)
Single amplitude: 0.35 mm (10 min. ON 3 axes)
Functional shock resistance Min. 98 m/s2 (4 times ON 3 axes)
Destructive vibration resistance Min. 980 m/s2 (5 times ON 3 axes)
Usage conditions Operation temperature –20℃ to +60℃ –4℉ to +140℉ (Without due and frost)
Ambient humidity 35 to 85% RH (relative humidity) (non-condensing)
Power supply ripple Approx. 48% or less (single phase, all-wave rectification)
Protective construction IP66 (front panel with a rubber gasket)

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