Wireless Water & Wastewater Monitoring with Rugged, IP67 Rated Recording Telemetry Units
Telog’s Ru-33 Recording Telemetry Unit, (RTU), provides real-time monitoring and alarming of instruments and sensors found in the harsh environment of sewers and underground water vaults.
The Telog Ru-33 has low power requirements and automatically monitors level, flow, pressure and water quality sensors. Data is forwarded wirelessly to a host computer operating Telog Online, Telogers for Windows or Telog Enterprise. Data communication may be scheduled frequently (e.g. daily, hourly, every five minutes, etc.) and/or immediately in response to site alarm conditions.
The Telog Ru-33 supports multiple sensor interface options including RS-232, RS-485, analog and digital inputs. For example, when connected to an open-channel flow meter via RS-232, the RTU can interrogate the meter for its most recent level, flow velocity and battery voltage measurements.
Telog also provides optional sensors that may be directly attached to the Telog Ru-33 including ultrasonic and pressure level, water quality Sondes, temperature, level switches and a rain gauge.
Wireless communication is supported via packet switched (e.g. 1xRTT) or circuit switched (e.g. CDMA) cellular. An optional burial antenna may be embedded in the street pavement producing a complete underground wireless monitoring solution.
The Telog Ru-33 is powered from a single, 6-volt lantern battery providing an operating life of six months to two years depending on sensor interface and call schedule
All connectors and fittings are watertight and the product is environmentally rated IP67 to 3 meters of depth
AC power is not needed, significantly reducing installation and maintenance costs
Provided with the Telog WM/C cellular m2m modem which is certified on the Sprint and Verizon Wireless networks in the US and the Bell Mobility network in Canada
Data loss is not a concern because the recorder stores over 67,000 interval statistics before overwriting the oldest data with new.
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Recorder Model: Telog Ru-33
Type: Type: Multi- channel underground RTU
-- Sample rate: Programmable from 1/Sec up to 8 hours each channel
-- Data interval: Programmable from 1/sec up to 8 hours each channel
-- Size: 512 Kbytes
-- Storage method: Wrap around (first-in; first-out)
-- Data capacity: Dynamically allocated to active channels, any combination of:
--- Analog input:270,000 values
--- Pulse input: 200,000 values
--- Event input: 67,000 values
--- ComSensor input: 100,000 values
-- Standard: local RS-232, 4 pin circular connector rated IP-67, auto-selected baud rate to 19.2K
-- Optional: Land line telephone; Telog M-324 2400 baud modem; Auto-dial/Auto answer; FCC and CSA approved | Cellular data modem; Provides both 1xRTT packet switched and CDMA circuit switched data.
Inputs (Limited to one ComSensor + one analog + one digital)
-- ComSensor/meter: Selectable RS-232 or RS-485 to 19.2 Kbaud. Protocol determined by meter or sensor.
-- Analog: Selectable ranges: 0-1 VDC, 0-5 VDC, 4-20 ma | Excitation: Pulsed +5 or +12 VDC, (selectable duration) | Resolution: ±0.025%; 12 bits/Accuracy: 0.1% of full range at 25ºC ±50 ppm
-- Digital (one channel): Type: Selectable pulse counter or even recorder | Input: Contact closure or logic driven input | Excitation: 5 VDC at 20 µAmps (max) | Pulse width: 10 mS minimum
-- Factory installed: Single 6V alkaline lantern battery, Eveready Energizer model 529
Battery Life Example
-- Input ComSensor: Sigma 900 series flow meter with 1xRTT wireless communication and sampling rate of 5 minutes. The battery life for this unit with the following call schedules will be: 5 minutes = 1 month | 15 minutes = 3 months | 2 hours = 1 year/24 hours = 2 years.
External Power Input
-- 9 to 15VDC @ 1amp Max
-- Size: Cylindrical 4.5" x 15.4" | Weight: 7 lbs | Material PVC
-- Temperature: 0 - 70º C
-- Submersible: IP67 (NEMA 6)
-- Pressure Level Sensor: Submersible pressure sensor
-- Model: Telog PMP-1030
-- Ranges: 0-5 PSI thru 0-3-- PSI
-- Accuracy: ±0.25% of full scale
-- Construction: 316 stainless steel
-- Vent: In-line dry box with user replaceable desiccant
Ultrasonic Level Sensor:
-- Ultrasonic transmitter (ComSensor)
-- Model: Massa M5000/95
-- Frequency: 95 KHz
-- Range: one foot to 13 feet
-- Beam Angle: 8º conical
-- Accuracy: ±0.25% over any range segment exceeding 12 inches (homogeneous environment)
-- Model: AT-3u ambient temperature sensor
-- Range: -20 to +70º C
-- Accuracy ±0.2º C
-- Size: Stainless steel probe (4" x ¼") with three meters of cable