The DSM-500 Survey meter is an excellent multi purpose unit as it works with many WB Johnson probes. It's digital auto-rainging readout allows for easy interpretation of measurements, and a highly configurable intrument. These meters can be customized to specific applications, be it contamination monitoring, dose rate, or NORM measurements.
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| Dose/CPM Switch | External Dose/CPM Switch |
|---|---|
| Input Sensitivity | 0.05V |
| Display-LCD | 4-Digit x .75" LCD w/LED Backlight |
| LCD Refresh Rate | 0.8-3.0 Sec in 0.2 Sec increments - adjustable |
| Dose Ranges | 0.0µR/hr-9999 R/hr |
| CPM Ranges | 0-999.9 Kcpm |
| Probe Linearization | Internal adjust for cal constand and dead time |
| Scaler Ranges | 0-999.9 Kcpm |
| Scaler Count Time Ranges | 10-2550 Seconds (10 second increments) |
| Alarms (optional) | 5-95% of Range |
| Diagnostics | Low Battery, Overrange - Audible & Visual Alarms |
| Range Adjustment | Auto-Ranging All Scales |
| Electrical Non-Linearity | < 5% Full Scale |
| Response Time | Fast - 10-2550 Seconds (adjustable) | Slow 10-250 seconds (adjustable) |
| Drift | < 5% |
| Environmental | -20°F[-28°C] to 140°F[60°C]| 5-95% RH IPX4 Housing |
| High Voltage | Adjustable 300-1500 VDC | Regulation +-1% |
| Battery | 6 - "AA" Alkaline (nominal 100hrs Operation) |
| Circuitry | Digital Microprocessor Controlled |
| Dimentions | 5.25"(14cm) H X 4" (10cm) W x 7"(18cm) L |
| Weight | 2.5 lbs. (1.2 Kilos) |
| Construction | Rugged, Heavy Duty Cast Aluminum & Stainless Steel |
| Probes | Supports All Johnson Probes |
| Data Output | 9 Pin Serial RS-232 - Panel switch manual data extraction |
