Smart environmental monitoring solutions
The 2501P particle counter provides a range of particle size measurement from 0.5 to 25.0 μm at 0.1 CFM (2.83 LPM) flow. These sensors allow for efficient particle counting with high accuracy and resolution that meet or exceed ISO 21501-4 and JIS B9921 for the calibration of a particle counter.
These units are equipped with an internal pump and manifold and do not require an external vacuum source. Integration into a building automation or facility monitoring system is easy via standard MODBUS RS-485 communication.
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| Measures 0.5 um to 25.0 um |
| 0.1 CFM (2.83 LPM) flow rate |
| Long-life laser diode technology |
| Measures up to 4 channels of simultaneous data |
| Particle concentrations up to 15,000,000 Particles/ft3 @ 10% coincidence loss |
| Internal vacuum pump |
| Internal HEPA filter |
| Connect using Modbus RTU/ASCII over isolated RS-485 |
| Complies with ISO 21501-4 and JIS B9921 standards |
| Easy to clean and wipe down with minimal particle traps |
| Versatile mounting options |
| User-configurable alarm light |
| LED Indicators |
| Seamless integration into a facility monitoring system |
| Lightweight stainless steel enclosure |
| 2-year warranty. Extended warranties are available. |
| Model | 2501P |
| Size Range | 0.5 to 25.0 um |
| Size Channels | Factory calibrated at 0.5, 1.0, 2.5, 5.0 um |
| Number of Channels | 4 |
| Counting Efficiency | 50% @ 0.5 um; 100% for particles > 0.75 um per JIS |
| Flow Rate | 0.1 CFM (2.83 LPM) |
| Concentration Limits | 15,000,000 Particles/ft3 @ 10% coincidence loss |
| Light Source | Long-life laser diode |
| Zero Count | < 1 count / 60 minutes (< 1 particles /6/ft3) |
| Calibration | NIST traceable |
| Vacuum Source | Internal Vacuum Pump |
| Airflow | Internally monitored |
| Alarm | User-configurable alarm light |
| Communication Modes | MODBUS™ RTU or ASCII outputs (over isolated RS-485) |
| Standards | ISO 21501-4 and JIS B9921 |
| Instrument Calibration | Recommended minimum once per year |
| External Surface | Stainless steel |
| Dimensions (L x W x H) | 3.59” x 1.83” x 5.66” (9.1 cm x 4.6 cm x 14.3 cm) including probes and connectors |
| Weight | 1.94 lb. (0.88 kg) |
| Accessories | Wiring Connector, operating manual on USB flash drive |
| Optional Accessories | Power Supply, Remote Mounting Bracket, Stainless Steel Barbed Isoprobe (0.1 CFM/2.83 LPM), Purge Filter Assembly, and Sample & Vacuum Tubing |
| Sample Time | 1 second to 18 hours |
| Power | 9 – 24 VDC (< 2.5 watts) |
| Operating Conditions | 41° to 104°F (5° to 40°C) / 20% to 95% non-condensing |
| Storage Conditions | 32° to 122°F (0° to 50°C) / Up to 98% non-condensing |
| Warranty | 2-year limited warranty. Extended warranties are available. |
Talk to our sales team. Call +61 2 9622 6327
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