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USER MANUAL : CDS552 CIRRUS LOOP LOGGER
DOCUMENT NAME CLASSIFICATION DATE PAGE
CDS552 CIRRUS LOOP LOGGER USER
MANUAL
CONFIDENTIAL 15-JUL-21 5 OF 29
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Onboard 24V 30mA power generator. The Cirrus Loop logger can generate a stable 24V output at a maximum of
30mA allowing for the powering of an external piece of equipment or current loop device eliminating the need for
a secondary power supply. This option will also function under battery operation.

Large onboard non-volatile memory - This logger can record in excess of 12350 datalog records (application
dependent).

Logging intervals from 1 minute to 1 month. Information is internally logged, time and date stamped and
transmitted at programmable intervals.

Remote programming of all setup parameters via GPRS link or SMS.

Ideal for leak detection, alarming to prevent water loss.

Onboard Bluetooth can stream diagnostic information about signal strength, network status etc.

Touch sensitive button and LED's for manual wakeup to server and diagnostic purposes etc.
1.3 Specifications

GPRS/EDGE/ LTE/4G Modem Technology

LTE-FDD B1/B3/B5/B7/B8/B20/B28

LTE-TDD B38/B40/B41

GSM 850MHz/900MHz/1800MHz/1900MHz

Bluetooth interface

Powered by battery or external 12V supply

Option of external power with battery failover and sleep

All management software supplied free
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Standard Alkaline Batteries - 3 x D cells (5+ years)

2 x Pulse inputs

Isolated 4-20mA Input port

24V 30mA Generated Power Output

Up to 12350 record datalog memory (application dependent)

Full SMS driven command set

Logging intervals 1 minute to 1 month

Rugged housing with seal eye

Touch sensitive button and LED Diagnostics

Configuration and diagnostics through Bluetooth interface

Fully configurable remotely

Stream data in real-time when powered by external supply

Size 185mm x 130mm x 55mm (including cable glands)

Housing Protection Class : IP68 - Max 1.2m, 30 days

Environment : -20°C to 80°C humidity = 90% non condensing. Check battery specifications for low power systems

Uses a Micro SIM card