Section 1: Introduction
HOBO Energy Logger User’s Guide
3
Battery type
Eight standard AA alkaline batteries included (for
operating conditions
-20°C/-4°F to 50°C/122°F); optional AA lithium
batteries available for operating conditions of -40° to
60°C (-40° to 140°F).
External power Supports optional 13.6 V DC regulated AC Wall
Adapter Connector. Internal batteries may remain
installed. Alternatively, an automotive battery or 9-
12 V DC regulated Wall Adapter may be used, but it is
recommended to remove the internal batteries since
they will discharge to the level of the external supply.
Time accuracy 0 to 2 seconds for the first data point and ±5 seconds
per week at 25°C (77°F)
Logging mode Immediate, timed delay, or trigger (button-push) start
options; supports sampling intervals for some sensors
Data
communication
Current readings while logging; read out while logging;
read out when stopped
CE marking identifies this product as complying with
all relevant directives in the European Union (EU).
Section 1: Introduction
4
HOBO Energy Logger User’s Guide
Key Features
Flexible expansion
The logger is not preconfigured. You can use any combination of
FlexSmart modules (up to 3) and Smart Sensors (to a maximum of 15
channels) by plugging them in before logging begins.
Automatic detection of Smart Sensors
The logger automatically recognizes Smart Sensors. No programming,
wiring, or calibration is required to set them up.
Digital network
The connections between the Smart Sensors and the logger are digital,
ensuring accurate, reliable data collection and storage.
Excitation
The Analog module (S-FS-CVIA) supports optional, user-configurable
sensor excitation power and warm up. The logger provides 12 V DC
sensor excitation voltage up to 200 mA for transducers that require
external power for proper operation. Refer to Sensor Excitation on
page 20 for details.
Flexible power capabilities
The logger supports multiple battery types (alkaline, enhanced alkaline,
or lithium) as well as several types of external power sources to allow for
longer deployments while providing increased power for sensor
excitation. Refer to External Power Sources on page 28 for details.
FlexSmart Modules
The logger is compatible with two types of FlexSmart modules, which
can accommodate up to two sensors each. Up to three FlexSmart
modules (in any combination) can be connected to the logger.
The
Analog Module
(S-FS-CVIA) offers configurable excitation power
and can be connected to any one or two of the following sensors:
The
TRMS Module
(S-FS-TRMSA) can be connected to the following
compatible AC current and potential (voltage) transformers:
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