ELPRO LIBERO CE User manual

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LIBERO CE
Operation Manual

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Table of Contents
Content
1 Safety Instructions............................................................................................................................ 3
2 Quick Start........................................................................................................................................ 4
3 System Overview.............................................................................................................................. 5
4 Device - LIBERO CE ........................................................................................................................... 6
4.1 Functionality and Modes.................................................................................................................. 6
4.2 Workflow.......................................................................................................................................... 9
4.2.1 “Alarming ON/OFF” function not configured............................................................................... 9
4.2.2 “Alarming ON/OFF” function configured ..................................................................................... 9
4.3 Technical Specification................................................................................................................... 10
5 External Pt100 Probes .................................................................................................................... 11
5.1 Areas of Application ....................................................................................................................... 11
5.1.1 Cryogenic shipments and storage .............................................................................................. 11
5.1.2 Dry ice shipments and storage................................................................................................... 13
5.1.3 Freezer / fridge / ambient shipments and storage .................................................................... 15
5.1.4 Extension of sensor cables ......................................................................................................... 16
6 Configuration of the Logger ........................................................................................................... 17
6.1 liberoCONFIG.................................................................................................................................. 17
7 Disposal .......................................................................................................................................... 21
8 Declaration of Conformity.............................................................................................................. 22

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1Safety Instructions
Intended Use
LIBERO CE is exclusively for commercial use (“business to business”).
Battery
Material safety data sheet according to provisions of directive 91/155/EEC and shipping information are
available from ELPRO-BUCHS AG. Do not subject the batteries to mechanical stress nor dismantle them.
The leaking battery fluid is highly corrosive and can generate severe heat when it comes into contact
with moister or it can ignite fire.
Environmental Conditions
Temperature
Temperatures exceeding 70°C can damage the battery. For the operation
range see specifications on www.elpro.com.
Water / Humidity
Device meets requirements of protection class IP54. Only for use in the
specified IP protection class, penetrating water or moister can damage the
device.
Mechanical Force
Avoid violent knocks and blows, they can damage the battery (short circuit).
IR and Steam
Infrared radiation (heat) and superheated steam can damage the surface
coating of the casing.
Microwave
There is a risk of battery explosion if the device is exposed to microwave
radiation.
UV Radiation
Exposure to UV radiation diminishes the stability of the casing.
Cleaning
For cleaning purpose use a slightly wetted cloth. Do not use thinner, fuel, alcohol or agressive cleaning
detergents, they can damage the casing.

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2Quick Start

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3System Overview
The LIBERO CE data logger described in this document is a device for temperature monitoring using an
external Pt100 probe. LIBERO CE saves the temperature measurements and can generate a PDF report
when connected to a USB port on your computer. The PDF report contains all measured values and thus
creates visibility and transparency to fulfil GxP requirements. The device is configured using free
liberoCONFIG software or by assigning a pre-programmed profile (SmartStart).
LIBERO CE with bracket and external probe

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4Device - LIBERO CE
4.1 Functionality and Modes
After configuration, the device measures the temperature using the connected external sensor, stores
the measured values and evaluates them with regard to the defined alarm criteria. The display indicates
the current mode.
In configuration mode, the device can be configured with the help of the free software liberoCONFIG.
This is visualized on the display as follows:
or
After the device has been configured, the device can be started by pressing the "Start" button for 3
seconds. The start mode is indicated on the display. In addition to starting the device, it can also be
reconfigured from the start mode. The device is automatically recognized in liberoCONFIG.
Display:
If a temperature-based or time-based delay has been configured, "delay" appears on the display after
the device has been started:
- Temperature-based delay: the "delay" will be displayed until the configured temperature threshold
has been reached. The device will then automatically switch to the measurement mode (see below).
- Time-based delay: the display shows the remaining time in minutes, before the device will
automatically switch to the measurement mode.

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After the delay (if configured) has elapsed, the device switches to measurement mode. Depending on
the device’s configuration, we can distinguish between the following two types of measurement mode.
- Measurement mode without "Alarming ON/OFF" function: Displays the current temperature value
(bottom, if configured), alarm indicator (top right, if configured) and the logging indicator (top left).
- Measurement mode with "Alarming ON/OFF" function: displays the current temperature value
(bottom, if configured), alarm indicator (top right, if configured), the logging indicator (top left) and the
"Alarming ON" status (top center). This state indicates that the measured values are evaluated
according to the alarm criteria.
Users who want the benefit of pausing the alarming (e.g. while refilling the liquid nitrogen or while
cleaning the refrigerator), can do so by pressing the "Alarming OFF" button on the device. In this case,
the display shows the current temperature value (bottom, if configured), alarm indicator (top right, if
configured), logging indicator (top left) and the "Alarming OFF" status (top center). Alternating every 2
seconds, the display informs the user that the alarming can be reactivated:
From the measuring mode, without configured "Alarming ON/OFF" function or from the measuring
mode with status "Alarming OFF," the device can be stopped by pressing the "Stop" button for 3
seconds.

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In stop mode there can be two different display states as seen below. Immediately after stopping,
"Make PDF" appears. This will only disappear after the PDF report has been created by plugging the
device into a USB port. This ensures that the user does not forget to read out the device.
After the device has been read out, "Stop" appears on the display. At this point the device can either be
started again (with the existing configuration) or reconfigured.

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4.2 Workflow
4.2.1 “Alarming ON/OFF” function not configured
The following figure shows the sequence of modes if the "Alarming ON/OFF" function has not been
configured (see chapter 6.1, section Alarm Conditions).
4.2.2 “Alarming ON/OFF” function configured
The following figure shows the sequence of modes if the "Alarming ON/OFF" function has been
configured (see chapter 6.1, section Alarm Conditions).

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4.3 Technical Specification

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5External Pt100 Probes
5.1 Areas of Application
LIBERO CE can be used for different applications, depending on the sensor.
ELPRO offers standard probes for three main applications:
Cryogenic shipments and storage
Dry ice shipments and storage
Freezer (-25 °C..-15°C, typical) / fridge (+2 °C..+8 °C) / ambient (+15 °C..+25 °C) shipments and
storage
5.1.1 Cryogenic shipments and storage
For cryogenic applications the LIBERO CE is usually mounted directly to the container, or the container
lid, using the optional bracket with the sensor leading into the tank. ELPRO offers an easy, turnkey
service for mounting the assembly and calibration.

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ELPRO offers two standard probes with different probe lengths for this application:
PRO_PT100_ST300D3_M8_CRYO (part number 802287)
PRO_PT100_ST350D3_M8_CRYO (part number 802288)

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Pt100 probe for cryogenic applications with M8 connector
5.1.2 Dry ice shipments and storage
Also in dry ice applications, the LIBERO CE is usually attached to the outside of the container using the
optional bracket and the sensor leads into the tank. ELPRO offers an easy, turnkey service for mounting
the assembly and calibration.
For this application, ELPRO offers two standard probes with a probe length of 10 cm and Teflon cable in
different lengths:
PRO_PT100_ST100D4_PTFE1_M8 (part number 802284)

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PRO_PT100_ST100D4_PTFE2.65_M8 (part number 802285)
Pt100 probe for dry ice applications with M8 connector

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5.1.3 Freezer / fridge / ambient shipments and storage
For temperature monitoring of freezers, refrigerators or rooms, ELPRO offers two waterproof silicon
Pt100 probes with different cable lengths as standard articles:
PRO_PT100_P20D5_PLA1_M8 (part number 802290)
PRO_PT100_P20D5_PLA2.65_M8 (part number 802291)

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Waterproof silicon Pt100 probe for freezer/fridge/ambient temperature monitoring with M8
connector
5.1.4 Extension of sensor cables
An extension cable with a length of 1m is also available.
ATTENTION: The total cable length (including sensor and cable tail on the data logger) must not exceed
3 m.
ECA_PLA_1M_M8 (part number 802282)
Extension cable with two M8 connectors to attach the PDF data logger and the probe. The total cable
length (including sensor and cable tail) must not exceed 3 m.

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6Configuration of the Logger
6.1 liberoCONFIG
liberoCONFIG is the free software to configure LIBERO PDF data loggers. It allows users to define all
necessary configuration parameters and to save them as profiles. A profile contains all settings for the
monitoring task and is documented in the PDF report generated by the logger.
The configuration of a single LIBERO Cx is done with liberoCONFIG. With SmartStart Pack & Go a profile
can be assigned to a larger number of LIBEROs quickly and safely. SmartStart Pack & Go exe files can be
used on any PC without installation and without special drivers.
System requirements
- Windows 7, 8 or 10
- CPU 1.5GHz
- Memory: 512 MB RAM
- Hard disk: 100 MB
- Monitor resolution: 800 x 600 Pixel
Details regarding configuration of LIBERO Cx can be found in the corresponding manual
(https://shop.elpro.com/daten/img/Documents/Operation%20Manuals/LIBERO/OM_LIBEROC_EN_web.
pdf). In the following, only the differences or additional configuration options for the LIBERO CE are
described.

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Logging
“Loop” was added as an additional logging mode, as LIBERO CE is a multi-use device.
NOTE: If the memory of the logger is full, newly measured values will continuously overwrite the oldest
values.

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Alarm Conditions
In the section "Alarm Mode" the possibility to select the inspection range has been added. The following
options are available:
All data: all recorded values are taken into consideration when assessing the alarm status
(based on the configured alarm conditions)
Last alarming ON period only:only the measured values between the last pressing of the
"Alarming ON" button and the last pressing of the "Alarming OFF" button on the device are
considered in the assessment. If the "Alarming ON" button was pressed last, i.e. the alarming is
still active, all measured values since that time are taken into account.
All alarming ON periods cumulative: all measured values recorded in phases with activated
alarming are considered in the assessment.
Alarming ON/OFF
Only if one of the last two options are selected, the alarming can be activated (Alarming ON) or
deactivated (Alarming OFF) during measurement mode.

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Stop Options
There are four options for LIBERO CE to stop data recording:
Stop when creating PDF report
Stop by long-pressing (> 3 seconds) the Stop button
Stop when the PDF is generated and both buttons on the device are pressed at the same time
(so stopping is basically possible, but the logger will hardly ever be stopped accidentally)
Stop mode disabled (CAUTION: This turns LIBERO CE into a 3-year single-use device, as it cannot
be stopped and therefore the configuration cannot be changed!)