Key Features at a Glance
This module captures high-speed pulse signals from flowmeters, encoders, and other frequency-generating devices. It processes up to eight independent input channels simultaneously without signal degradation. The unit converts raw frequency data into scalable engineering values for process monitoring. Many plants deploy this module for accurate totalization and rate measurement applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | APM11 |
| Dimensions | 130 mm × 40 mm × 100 mm (W × H × D) |
| Weight | 0.40 kg |
| Power Supply | 24 V DC ±10% |
| Power Consumption | 4 W typical |
| Input Channels | 8 isolated pulse inputs |
| Input Frequency Range | 0 Hz to 100 kHz |
| Input Voltage Range | 0 V to 30 V DC |
| Pulse Width Minimum | 5 µs |
| Accuracy | ±0.01% of reading |
| Totalizer Range | 0 to 4,294,967,295 pulses |
| Isolation Voltage | 1,500 V AC (channel-to-channel) |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -20°C to +70°C |
| Humidity Range | 10% to 90% RH (non-condensing) |
| Status Indicators | 8 LED indicators (one per channel) |
| Terminal Type | Removable screw terminals |
| Wire Gauge | 0.2 mm² to 2.5 mm² |
| Certifications | CE, UL, CSA |
Input Processing and Channel Design
Each of the eight channels features galvanic isolation to eliminate ground loop interference. The module accepts input signals from 0 V to 30 V DC with a minimum pulse width of 5 µs. It handles frequencies up to 100 kHz for high-speed counting tasks. An onboard totalizer stores cumulative pulse counts across the full 32-bit range.
Power Requirements and Energy Efficiency
This unit draws only 4 W from a standard 24 V DC supply. The low power consumption reduces heat generation within control cabinets. This efficiency extends the lifespan of internal components significantly. Users can power multiple modules from a single supply without overloading it.
Mechanical Construction and Mounting
The compact housing measures 130 mm wide and weighs just 0.40 kg. This lightweight design simplifies installation in crowded panels. Removable screw terminals accept wires from 0.2 mm² to 2.5 mm². The module mounts easily on standard DIN rails or directly onto backplates.
Diagnostic Feedback and Channel Status
Eight individual LEDs provide instant visual status for each input channel. A lit LED confirms the presence of active pulse signals. This direct indication helps operators verify wiring during commissioning. Maintenance teams can quickly identify faulty channels without external test equipment.
Quality Assurance and Regulatory Compliance
The APM11 holds CE, UL, and CSA certifications for worldwide deployment. These marks validate the module’s adherence to rigorous safety and performance standards. Every unit undergoes extensive factory testing before shipment. This commitment ensures reliable operation in demanding industrial environments.
Details
| Weight | 40 kg |
|---|---|
| Dimensions | 130 × 40 × 100 mm |
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