Wireless Current Loop Recorder
The Telog iLR-32 is a single channel recorder that is used in above ground applications. This recorder connects to instruments with 4-20 mA current loop output and converts the current loop inputs into a series of amplitude values. Some applications are process start-up monitoring and environmental parameters such as flow, temperature, pressure level, humidity, and pH.
Low Power Requirements
Powered by a single user replaceable ‘D’ cell lithium battery, the Telog iLR-32 continuously monitors the output of a process instrument current loop collecting interval statistics of minimum, average, maximum and/or totals at user defined periods then transfers the data automatically over a cellular network and the Internet to a central host computer. The Telog iLR-32 battery can operate up to five years making on average two calls per day.
The Telog iLR-32 employs a Telog proprietary, low power m2m cellular modem certified for operation on the Sprint, Verizon Wireless and Bell Canada cellular networks. The cellular modem, antenna, process signal conditioning, data recorder and battery are integrated into a small, environmentally rugged package making the Telog iLR-32 easy to install and put into service by connecting only the current loop
The Telog iLR-32 may be configured to call its host application server on a schedule (e.g. once per day; every four hours, etc.) and/or on alarm (e.g. in response to a process signal exceedance condition). Sampling the current loop signal at up to 4 times/second, data statistics (min, average, maximum or totals) may be stored in the recorder at user defined intervals (e.g. five minutes, one minute, etc.) without concern for data loss because the recorder will store over 80,000 interval totals before overwriting the oldest data with new.
Data Management Software/Service
The Telog iLR-32 is supported by Telog Enterprise and Telogers for Windows host application software. Telog also offers a Cloud Solution users who prefer to outsource the computer data collection and management tasks providing end-use information on a secure website.
Model: Telog iLR-32
Type: Single Channel Current Loop Recorder
-- Range: 4-20 mA standard; other ranges available on request
-- Resolution: 0.025% of full scale (12 bits)
-- Accuracy: ± 0.1% of full scale (0 to 50ºC)/±0.15% of full scale (-25 to 60º)
-- Loop resistance: 55 ohms
-- Maximum input: ±28 VDC; auto-resettable fuse protected.
-- Connection: 2 position terminal block for flying leads via water-tight fitting.
-- Sample rate: 4 per second to 1 per 8 hours; programmable
-- Clock accuracy: 0.01%
-- Memory size: 128 kbytes; 80,000 data values
-- Storage method: Wrap around (first-in; first-out)
-- Local RS-232:
--- 4 pin circular connector rated IP-67
--- Auto-selected baud rate to 19.2K
--- Internal Telog WM/C cellular modem
--- 1xRTT via CDMA certified on Sprint, Verizon Wireless and Bell Canada
-- Factory installed single 3.6V Lithium D cell Saft LSH 20 or Equal, user replaceable
-- Life: 4000 data calls to host Computer
-- Examples: 5 years @ 2 calls/day, 1 year @ 10 calls/day
-- Size: 6.30 x 3.2 x 2.2 inches; LxWxH
-- Weight: 2 lbs.
-- Material: Polycarbonate
-- Temperature: -40 to 70º C
-- Rating: NEMA 4x (IP66)