Model 5813 High Flow Remote Airborne Particle Counters
0,3µ
minimum threshold
1 cfm
Flowrate
2 size
channels
Stainless
Steel Case
RS-485
communications
A new addition to Met One's remote counter family provides the high flow of 1 cfm (28,3 lpm) plus the sensitivity of 0,3 microns. For years, the Met One 4800 family has provided remote sensors at 0,1 cfm for continuous monitoring at an economical cost. Now, with a high flow and sensitivity, the Model 5813 will provide additional sensitivity for continuous monitoring of critical areas. Remote counters are used in conjunction with a Facility Monitoring System (FMS) to provide 24-hour monitoring of critical areas. This means it is possible to provide immediate operator feedback concerning particle events, thus improving Production efficiency and minimizing down-time and waste.
The 5813 uses RS-485 serial communications, allowing daisy-chained wiring between particle counters using only a single pair of wires. This RS-485 cable can be up to 1500 meters (4500 feet) from the computer to the last counter.
A user-programmed alarm contact is provided. When high counts trigger an alarm, the LED on the counter flashes and an alarm signal is set at the connector. The alarm will automatically reset at the beginning of the next count cycle. Flow control is by critical orifice.
The sensor IS supplied with an RS-485 output signal that can transmit for 4,000 feet (1500 meters). Power LED illuminates when counter is powered. Calibrate LED illuminates when sensor calibration needs checking and flashes when the count exceeds the alarm level.
| Connector (DB-15 Female Connector) | |
| 1 | Ground |
| 2 | Alarm, open drain FET |
| 3 | N/C |
| 4 | N/C |
| 5 | N/C |
| 6 | RS485A |
| 7 | N/C |
| 8 | RS485B |
| 9 | N/C |
| 10 | N/C |
| 11 | N/C |
| 12 | N/C |
| 13 | Ground |
| 14 | N/C |
| 15 | +V Power |
Specifications
Sensitivity: 0.3 micron
Flow Rate: 1.0 cfm (28.3 lpm)
Flow Control: critical orifice requires 18" Hg (450
mbar) vacuum
Size Channels
Ch. 1 0.3 microns
Ch. 2 0.5 ( other sizes by request)
Light Source: laser diode (30,000 hours mean time between
failures)
Coincidence Loss: 5% at 1,000,000 particles per cubic
foot
Zero Count: not more than three counts in 5 minutes
Inlet Pressure: ambient to 0.1" Hg vacuum
Indicators power and calibration LEDs
Power: 9 to 28 Vdc at < 500 mA
Weight: 4.5 pounds (2 kg.)
Port Sizes: 1/4 inch ID sample inlet, 1/4 inch ID vacuum
connection
Environment Operating: 55 to 84°F (12 to 29°C), 20 to
95% relative, non-condensing
Storage: -40 to 160°F (-40 to 70°C), up to 98%
relative, non-condensing
Options
Switching power supply
(supports up to 16 sensors, 12 -15 Vdc, 5 A).
Various Isokinetic probe for 1 cfm
Wallplate for easy connection of data and vacuum