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Omron H8BM-RB DC24 Counter

The Omron H8BM-RB DC24 Counter is an English-labeled multi-maintenance time counter equipped with a 3-stage preset system for predictive maintenance and cycle tracking. It features total counter, preset counter, and cumulative time counter modes supported by nine internal counters/timers. With a wide 0–999999 count range, selectable 0.1-hour/0.1-second timing, and 30/500 Hz inputs, it ensures precise multi-speed monitoring. The short-input function enables multi-stage use without external wiring, and accessories include a protective cover and rubber packing. Manufactured by Omron and listed under Omron Counter products, this model belongs to the Omron H8BM Series.

BrandOmron
ProductCounters
Model NumberH8BM-RB DC24

Omron H8BM-RB DC24 Counter - Technical Specifications

SpecificationValue
FunctionTotal Counter, Preset Counter, Total Time Counter, Time Counter
Preset stages3 step
Rated supply voltage24 VDC (Ripple 20 % max.)
Operating voltage range85 to 110% of rated power supply voltage
Power consumptionat 26.4 VDC: Approx. 1.7 W
Count range0 to 999999
Max. counting speedCount input 1 to 7: 30 Hz Count input 8, 9: 30 Hz/500 Hz (switching) (ON/OFF ratio 1:1)
Minimum input signal width30 Hz: 16.7 ms 30 Hz/500 Hz: 16.7 ms/1 ms (selectable)
Counter Input modeIncrement (UP)
Counter One-shot output time20 ms
Input signalCount, Reset, Short, Counter No. selection, I/O inhibit input
Voltage inputHight level: 16 to 26.4 VDC Low level: 0 to 3 VDC (Input resistance Approx. 2.2 kΩ)
Display method7-segment transmissive LCD
Display Digits6 digit
Memory backup methodsMethod: EEP-ROM, Number of rewite: 100,000 operations min., Store data: 10 years min.
External connectionsScrew terminal
Counter Reset systemExternal and manual reset
Input modeVoltage input
Time counter ranges0.1 h to 99999.9 h/0.1 s to 99999.9 s (0.1h/0.1s selectable)
Reset time External reset100 ms
Control output Solid-state outputOpen collector output Residual voltage 2 V max.DC Leakage current 0.1 mA max.
Ambient temperature (Storage)-10 to 55 ℃ (with no freezing or condensation)
Ambient humidity (Operating)25 to 85 %
Noise immunityBetween power terminals: ±480 V Between input terminals: ±480 V square-wave noise by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise)
Static immunityMulfunction: 8 kV, Destruction: 15 kV
Vibration resistanceDestruction: 10 to 55 Hz, 0.75 mm single amplitude each in 3 directions for 2 h Malfunction: 10 to 55 Hz, 0.5 mm single amplitude each in 3 directions for 10 min
Shock resistanceDestruction: 300 m/s2, 3 times each in 3 axes 6 directions Malfunction: 200 m/s2, 3 times each in 3 axes 6 directions
Degree of protectionCase front: IP54 Oil-proof type
Case colorDark gray (Munsell 5Y3/1)
WeightApprox. 250 g