Wireless IoT Water Pressure Monitoring/Alarming
The Telog PR-41 Pressure Recorder establishes a new standard in low power, IoT communication sensors for monitoring and alarming remote water system pressures. It is available with a choice of pressure sensor ranges, from 1 to 500 PSI. The Telog PR-41 enables water utilities to cost effectively monitor their network, identify potential pressure and leakage issues and respond to them in a timely manner. In doing so, it aids them to comply with NRW, Customer Service and other regulatory targets.
Connected to Telog Cloud or on premise software applications, the Telog PR-41 may be configured to report its data on a schedule (5 or 15 minutes, hourly, etc. ) and/or on alarm (e.g. in response to a high or low pressure or level exceedance condition). The recorder can be programmed to sample the pressure sensor up to once per second and transmit the data statistics as per the schedule.
The Telog PR-41 uses a low power, long range LoRaWAN™ communication protocol which is an industry standard for the emerging Internet of Things (IoT). The modem, antenna, pressure signal conditioning, data recorder and battery are integrated into a small, environmentally rugged package making the Telog PR-41 easy to install and put into service.
The Telog PR-41 is compatible with all Telog software applications, including Telog DHS cloud hosted service, Telog Enterprise and Telogers for Windows application software. This ensures that utilities have a complete solution addressing all their remote monitoring needs across their operations, delivered in a manner that suits each individual utility’s operations and IT needs.
Model: Telog PR-41
Type: Single channel level recorder with external sensor
-- Sample rate: 1 per second to 1 per 8 hours; user programmable
-- Clock accuracy: 0.01%
-- Memory size: 128 kbytes; 28,000 data values
-- Storage method: Wrap around (first-in; first-out)
-- Sensor Interface: I²C serial protocol
-- Technology: LoRaWAN bi-directional class A protocol
-- Output Power: 18.5 dbm maximum
-- Frequency: 915 MHz (North America LoRa band)
-- Antenna: Integrated Antenna | External antenna optional
-- Factory installed single 3.6V Lithium ‘C’ cell, Saft LSH 14 or equal, user replaceable
-- Life: 5 years nominal @ 15 minute transmits @ medium to excellent signal strength
-- Size: 4.70”L x 3.2”W x 2.2”H
-- Weight: 1.5 lbs. (includes sensor + 15’ cable)
-- Material: Polycarbonate
-- Temperature: -40 to 160ºF
-- Rating: NEMA 4x (IP67)
-- Model: Telog PT-DS1
-- Type: Strain gauge pressure sensor
-- Interface: I²C serial protocol
-- Range: Selectable 1, 2.5, 5, 10, 15, 30, 50, 100, 200, 300, 500 PSI (gauge or absolute)
-- Accuracy: 0.1% of full scale. Includes effects of non-linearity, temperature and repeatability
-- Temperature Range: -40°F to 185°F (freezing water will damage sensor)
-- Temperature Effect: ±0.01%/°F (32 to 90°F)
-- Pressure Over Range: 2x full scale with negligible calibration change. Proof pressure 4x full scale
-- Pressure fitting: 1/4” NPT male with depth nose cone
-- Environmental: Submersible to NEMA 6P (IP-68)
-- Sensor length: 5”
-- Sensor diameter: 1.0”
-- Sensor body: 316 stainless steel
-- Cable: Vented Polyurethane 0.275” diameter
-- Cable weight: 0.027 lbs./ft
Monitoring Progress: Nailing Down Water Hammer And Its Implications
By Telog, A Trimble Company
If you don't know what a water hammer is, well, that's a big part of the problem. It's an all-too-frequent issue for water systems everywhere, striking in pipelines that are growing more susceptible to failure as they age.