Omron – H8BM-BD-303 – Multi-Maintenance Counter

The Omron H8BM-BD-303 is a multi-maintenance counter designed to monitor equipment utilization by providing up to nine built-in counters or accumulative timers. This device can function as a multi-stage preset counter, offering individual outputs to indicate maintenance timing. It features pre-forecast, forecast, and machine stoppage outputs, allowing for proactive maintenance scheduling. The compact design, with dimensions of 72 mm × 72 mm × 79 mm, and an IP54F enclosure rating make it suitable for industrial environments.  

Key Features:

• Multi-Functionality: Operates as up to nine counters or accumulative timers, configurable for various maintenance monitoring tasks.

• Multi-Stage Preset Capability: Functions as a multi-stage preset counter, providing flexibility in maintenance scheduling.

• Individual Maintenance Outputs: Offers outputs to indicate maintenance timing, including pre-forecast, forecast, and machine stoppage alerts.

• Compact and Durable Design: Features a compact form factor with an IP54F enclosure rating, ensuring durability in industrial settings.

Technical Specifications:

• Model Number: H8BM-BD-303

• Mounting Method: Flush mounting

• External Connections: Screw terminals

• Enclosure Ratings: IP54F (panel surface)

• Display Mode: Up display

• Output Mode: F mode

• Reset System: External, manual resets

• Timing Function: Yes

• Input Signal Method: Voltage inputs: High and low signal voltages (count, reset, re-monitor, counter select, I/O inhibit)

• Control Output: No-contact outputs: NPN outputs (RUN, forecast)

• Display: Count, preset value, counter number, and error codes displayed on 7-segment LCD

• Built-in Counter Number: 9 (counters 1 to 9)

• Number of Stages: 1 stage

• Digits: 6 digits (999999)

• Max. Time Settings: 99999.9 hr (0.1 hr or more)

• Memory Backup: Backup time for power interruption: Approx. 10 years at 25 °C

• Approved Standards: UL508, CSA C22.2 No.14

• Rated Voltage: 24 V DC

• Operating Voltage Range: 85% to 110% of rated voltage

• Power Consumption: Approx. 1.8 W (at 24 V DC)

• Max. Counting Speed: 30 cps (ON:OFF = 1:1)

• Min. Input Signal Width: Counter No. selection input: 16.7 ms max.; Reset input: 100 ms max.; Re-monitor input: 30 ms max.; Output number request input: 30 ms max.; I/O inhibit input: 16.7 ms max.

• One-Shot Output Time: 20 ms

• Input Signal Levels: High level: 16 to 30 V DC; Low level: 0 to 3 V DC

• Control Output: Open-collector output: 100 mA max. at 30 V DC max.

• Case Color: Light gray (Munsell 5Y3/1)

• Insulation Resistance: 100 MΩ min. (at 250 V DC) (between current-carrying terminals and exposed non-current-carrying metal parts)

• Dielectric Strength: 1,000 V AC, 50/60 Hz for 1 min (between current-carrying terminals and exposed non-current-carrying metal parts)

• Impulse Withstand Voltage: 1 kV (between power terminals); 1.5 kV (between current-carrying terminals and exposed non-current-carrying metal parts)

• Noise Immunity: ±1 kV (between power terminals) and ±600 V (between input terminals), square-wave noise via noise simulator (pulse width: 100 ns/1 µs, 1-ns rise)

• Static Immunity: Malfunction: 8 kV; destruction: 15 kV

• Vibration Resistance: Destruction: 10 to 55 Hz with 0.75 mm single amplitude in three directions; Malfunction: 10 to 55 Hz with 0.5 mm single amplitude in three directions

• Shock Resistance: Destruction: 294 m/s²; Malfunction: 196 m/s²

• Ambient Temperature: Operating: –10 °C to 55 °C (with no icing); Storage: –25 °C to 65 °C (with no icing)

• Ambient Humidity: Operating: 35% to 85%

• Weight: Approx. 290 g