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Sonic Level Meter 320 (SLM-320) |
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 | Ultrasonic Water Level | | Universal Inputs for Multiple Sensors | | Ultra-High Resolution | | Low Power - Up to a Year Battery Life | | Over 1 Year Memory Capacity | | Works with Primary Devices | |
| Available with GPRS or CDPD | | Email Overflow Alarms | | Wireless Data Check In |
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| Sanitary Sewer Flow | | Infiltration Inflow | | Billing Monitoring | | Sewer Capacity Storm Sewer Monitoring |
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The model 320 Sonic Level Meter combines years of flow meter experience with advanced sensors and a powerful data logger all in one complete system. The system was designed for long-term remote monitoring of flow data. The rugged design and long battery life significantly reduce site visits.
The NEMA 6P (IP-68) housing and connectors withstand prolonged surcharge conditions. Three additional analog type sensors such as a second sonic level, second submerged depth, temperature, water quality, pH, or conductivity sensors can be connected. Internal circuitry generates the 15 volts required for the optional sonic level or water quality sensors from the internal battery pack eliminating dual battery requirements. A rain gauge can also be connected.
Sanitary sewer flow studies, infiltration inflow studies, billing monitoring, sewer capacity studies and storm sewer monitoring are a few of the possible uses.
The model 320PW is perfect for event notification and alarming of combined sewer overflows when installed with our wireless communications module. |
| Enclosure |
| Materials: | Fibreglass |
| Connector Rating: | NEMA 6P (IP 68) |
| Certification |
| Class 1, Div. 1 Groups C and D |
| Intrinsically safe pending approval (prior to new design) |
| Operating Temperature Range |
| Datalogger: | -40 to 170°F (-40 to 75°C) |
| Sensors: | 32 to 140°F (0 to 60°C) |
| Power Source |
| Source: | 12 Volt 20 Amp battery pack |
| Battery Life |
| Duration: | 12 months continuous use at 5 minute recording interval (1 Level, 1 Other) |
| Battery Level: | Can be monitored like an input |
| Stand-by current: | 0.2 mA |
| Monitoring |
| Interval Rate: | Hours, minutes or second resolution |
| Time-Base Accuracy: | Highly accurate sealed crystal (+/- 0.8 seconds per day) |
| Program Settings |
| Stored in Non-Volatile EEPROM memory. Firmware stored in field reprogrammable Flash memory. |
| Sensors |
| Standard: | Sonic depth sensor |
| Optional: | Third party submerged Depth sensors available |
| Sensor stabilization: | Selectable |
| Sensor Band |
| Material: | Stainless steel |
| Data Storage |
| 16Mb (4MB) flash memory with wrap or slate mode. Data is safe when power is lost. If recording time, depth, and velocity, the memory would not be filled for 163840 readings or as for the days shown below: |
| Sample Rate (Minutes) | Days | Years | | 5 | 1130 | 3 | | 10 | 1700 | 4.5 | | 15 | 2230 | 6 | | 30 | 4460 | 12 |
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| Software |
| Real-time communications, programming, data retrieval and analysis software for Windows 98/2000/XP. |
| Alarm Set Point |
| On all four precision inputs including fluid level, one overflow float switch and data conditions. |
| Communication Speed |
| 19200 to 57600 Baud |
| Communications |
| Standard Serial port |
| Optional Communications |
| Landline modem 33.6K with error correction and data compression. |
| Spread spectrum radio 902 - 928Mhz or 2.4Ghz. |
| Wireless Internet GPRS, CDPD radio modem. |
| Automated data collection and alarming with www.viewdatanow.com web page when using a CDPD modem. Alarms sent via email, digital phone or pager. |
| Level Measurement |
| Ultrasonic range: | 1 to 25 ft (0.22 to 8 m) |
| Operating Temperature: | -30 to 160°F (-30 to 60°C) |
| Compensated Temperature: | Internal |
| Accuracy: | +/- .25% of reading |
| Rating: | NEMA 4X, IP65 |
| Cable: | 10 Conductor 22 AWG PVC Jacket |
| Cable Length: | 25 ft (7.6m) standard (special order lengths available) |
| Inputs |
| Any or all inputs can have additional calculations applied to provide user selectable results. |
| All Inputs are protected from electrostatic discharge. |
| Alarms |
| High and low level alarms |
| Note |
| Specifications may change without notice. |
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