Novus LogBox-RHT-LCD User manual

NOVUS AUTOMATION 1/7
LogBox-RHT-LCD
TEMPERATURE AND HUMIDITY LOGGER – INSTRUCTIONS MANUAL V1.1x C
1PRESENTATION
LogBox-RHT-LCD is an electronic logger of temperature and
relative humidity. There are sensors that measure such data and
values (data) obtained are displayed in an LCD screen and stored in
an electronic memory. Data can be later viewed and analyzed on a
PC where they can be opened in tabular and graphical forms. The
humidity output can be configured to display Relative Humidity
values or the temperature value of Dew Point.
The logger is supplied with LogChart II software, which enables to
set up the logger operation mode. It is also used for visualization of
collected data. Other parameters such as end of measurements,
logging interval, etc., are easily defined through the LogChart II
software.
Measurements can be exported to and opened in other applications,
such as spreadsheet programs.
1.1 Identification
The identification label is on the logger body. Check if the features
described are in accordance with your order. The RHT-LCD model
is designed to measure temperature and relative humidity.
The following elements are shown in the logger front:
Fig. 1 – Logger Front
START / STOP button: Can be configured to start or stop logging
when pressed. It can also be used to browse and change screens.
Status indicator (LOG): Indicates when the device is logging.
Note: When logs are finished or not started, the indicator remains
deactivated.
Alarm Indicator (AL1 and/or AL2): Warns the user as to alarm
conditions. It remains active whenever an alarm condition occurs,
until a new configuration is applied to the logger.
IR Communication Window (COM): Activated when there is a
communication attempt or when communication between logger and
PC is activated.
2SPECIFICATIONS
Operating temperature From –40 °C to 70 °C
Sensor measure range Temperature: –40.0 °C to 80.0 °C.
Relative Humidity (RH): 0.0 to 100.
0 %,
without condensation.
Dew Point: –40.0 °C and 100.0 °C
Accuracy See Fig. 2.
Note: A measure error can be ruled out using
the OFFSET parameter in the LogChart II
software.
Measurement resolutions Temperature: 0.1 °C.
14 bits (16383 levels)
Relative Humidity (RH): 0.1 %.
12 bits (4095 levels)
Response time Temperature: up to 30 seconds with fairly still
air.
Humidity: up to 8 seconds with fairly still air
(20 to 80 %RH).
Memory capacity 64,000 (64 k) logs:
Half for each channel or total when one of the
channels is not enabled.
Measurement interval 1 second min. 18 hours max.
Supply 3.6 Vdc lithium battery (1/2 AA), built-in
Estimated autonomy
Higher than 200 days, with weekly data
reading. Frequent logged data readings may
shorten battery life and the interval between
acquisitions is too short.
Case Polycarbonate
Protection
Suitable for products with protection level
IP40.
Dimensions 60 x 70 x 35 mm
Logger-PC data transfer
time
According to the number of logs. 40 seconds
for 16,000 logs.
PC interface Interface Ir/USB or Ir/Serial.
LogChart ll software
operation environment
Set up Software for Windows 98, NT, 2000,
XP, Vista and 7.
Menus in Portuguese, English or Spanish.
Sets up, reads and displays data on the
screen.

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2.1 Measurement Accuracy
Fig. 2 - Accuracy
Fig. 3 – Logger front (CH1)
Channel Indicator: Indicates the channel selected.
Battery Indicator: The battery symbol is shown when the battery
voltage is low.
MIN / MAX values indicator: Minimum and maximum value of
each channel during readings.
3OPERATION
It is only possible to operate the logger after the LogChart II
software is installed to a PC, according to the steps described in
LogChart II Software section of this manual.
The communication between logger and PC is performed with the
use of the IR-Link Interface.
The logger operation mode set up is defined in advance by using
the LogChart II software.The configuration is sent to the logger
through the IR-Link Interface.
The logger starts and stops logging as defined in the setup.
3.1 Registers Screens
Battery Saving Mode -
idle
Low battery consumption mode the register does not communicate. It
always stays in this mode after reset; register does not make
acquisitions and does not up-date screen measures. For skipping
idle
mode, press button for activating communication
temporarily. After an acquisition configuration has been sent, it will
definitely be out of
idle
mode.
Battery Saving Mode
Main Screen
Indication screen for values measured by the register:
1st Screen – Temperature and
Humidity
2nd Screen – Temperature and dew
point
Indicator Screen MIN / MAX – CH1
It indicates the minimum and maximum value of Chanel 1 during the
acquisitions.
3rd Screen – CH1 Minimum Value 4th Screen – CH1 Maximum Value
Indicator Screen MIN / MAX – CH2
It indicates the minimum and maximum value of Chanel 2 during the
acquisitions.
5th Screen – CH2 Minimum Value 6th Screen – CH2 Maximum Value
Communication Screen IR - COM
It sets IR communication to automatic or manual:
•In the automatic mode (
aut
), communication will be
always active. For communicating, just direct the interface
and use LogChart II software. It always stays in this mode
after reset.
•In the manual mode (
nnan
) communication will be active
20 seconds, after pressing the button. During this
time, a communication shall be initiated for keeping the IR
Communication active.
7th Screen – IR Communication Screens

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Display Updating Interval Screen -
disp
It sets the reading time of the sensor for the display updating. When
selected by
lo6
, it performs the sensor reading and the display
updating, according to the interval set for acquisition.
When selected by
10 s
,
30 s
or
60 s
it performs sensor reading
for display updating every 10, 30 or 60 seconds. In this mode if the
acquisition interval is shorter than the time set in the screen
disp
,
display will be updated according the acquisition interval.
8th Screen – Updating Interval Screens
4BATTERY AUTONOMY
The estimated battery autonomy is above 200 days. This autonomy is
directly related to the register using mode. The shorter is the interval of
the sensor reading, the smaller will be the autonomy, and it can last
only 30 days, in the worst case.
For saving battery energy it has to set the longest interval possible
between acquisitions, as well as for display updating.
Examples:
Ex. 1: Acquisitions interval equal to 10 minutes and
disp
screen in
lo6
mode. In this case register remains sleeping and actives only in
every 10 minutes to read the sensor, update the display and make
the acquisitions.
Ex. 2: Acquisitions interval equal to 10 minutes and
disp
screen in
60
s
(60 seconds). In this case, register remains sleeping and
activates in every 1 minute to measure the sensor and update the
display. And every 10 minutes, it activates and measures the sensor
for making the acquisitions.
Comparing the Ex. 1 and the Ex. 2 with same acquisitions interval,
the second example consumes 10 times more battery regarding the
first one, due to the constant sensor reading for display updating.
Ex. 3: Medium, minimum and maximum mode.
When one of these acquisition modes is used, 10 sensor readings
are performed to make one acquisition. If the acquisition interval is
equal to 10 minutes and
disp
screen is in
lo6
mode, in every 1
minute a measure will be made to make the 10 necessary measures
for an acquisition. In this case consumption will be same as Ex. 2.
Ex. 4: Starting and ending of acquisitions.
It has to observe the best start and end acquisitions mode to save
battery, due to necessity of the measures.
If the process in which the measures are performed, only a short
interval happens. The best is to use start and end of acquisitions by
button.
If process occurs on a daily basis during the day, the best way is to
use the start and end by date and daily repetition.
5INTERFACE INSTALLATION
In the Ir-Link3 / RS232 model there is a RSR232 / Ir communication
interface. It must be connected to the serial port at the PC.
In the Ir-Link3 / USB model there is a USB / Ir communication
interface, which must be connected to the available USB port.
Windows will request the proper driver installation, which is found on
our website.
5.1 USB Drivers Installation
The drives installation steps may vary according to the machine, even
for the same version of an operating system. The following
screenshots and steps are only to provide guidance.
1. Run the driver file available on our web site.
2. Connect the serial communication interface IrLink-3 to the PC
USB port. Windows® will acknowledge the presence of new
hardware and a few seconds later it will start the drivers
installation process.
3. The found new hardware wizard will be displayed, and you
will be asked if you want to install the driver from the
Windows Update website. Select “No, not this time”, and then
click Next (Fig. 4).
4. Select “Install from a list or specific location (Advanced)” and
click “Next” (Fig. 5).
5. Select “Search for the best driver in these locations” and
check “Search removable media”. Click “Next”. If installation
files are not in a CD, check “Include this location in the
search” and show the file path (Fig. 6).
6. If a prompt warns you that it does not support Windows® XP,
click “Continue anyway”.
7. The interface driver files will be copied to the computer and after
a few seconds a screen is displayed informing that the software
installation has been concluded. Click “Finish” (Fig. 7).
8. In some situations, the steps described above may be
repeated again. Follow the same procedures.
In later uses of the interface, Windows® may require the driver
installation again. In this case, the same installation wizard will be
displayed, and you will have to select the option “Install software
automatically (recommended), as the driver may already be in the
computer.
The following screenshots show examples of Windows XP®
installation wizard. The screens in Windows 2000® are slightly
different, but the content is basically the same.
Fig. 4 – USB drivers installation wizard screen (First)

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Fig. 5 – USB drivers installation wizard screen (Second)
Fig. 6 – USB drivers installation wizard screen (Third)
Fig. 7 – USB drivers installation wizard screen (Conclusion)
6LOGCHART II SOFTWARE
6.1 Installing LogChart II
LogChart II is the software the logger to for configuration and data
offload. To install, run the LC_II_Setup.exe.
Note: Be sure your Windows date separator is configured as a
slash: dd/mm/yy or dd/mm/yyyy.
6.2 Running LogChart II
When you open LogChart II the main window is displayed:
Fig. 8– LogChart II main window
Next, select the serial port that the communication interface will use
in the “Port” menu.
•For IR-Link3/RS232 model:
Check which is the free serial port in your computer. The selected
COM port will be considered as the standard port next times the
LogChart II is run.
•For IR-Link3/USB model:
Select the USB serial port where the interface is connected.
Figure 9 – Icons enabled when the communication port selected is a valid port
6.3 Configuring the logger
Make sure the communication interface is connected to the PC port
selected. The interface must be constantly directed towards the front
part of the logger (communication window) at a maximum distance of
50 cm. (See Fig. 10).
Fig. 10 – Infrared communication interface position
When communication is established, select
The Parameters Configuration screen is displayed. In this screen
the user can define the logger operation mode and also obtains
general information about the device (Fig. 11).
Fig. 11 – Logger Set Up (Readings)

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Fields are:
Title: In this field, the user identifies the logger by assigning it
a name.
General Information: Area with information about the logger,
such as Model, Serial Number, Logger current Date/Time, PC
Date/Time, firmware version, memory capacity and number of
acquisitions stored in memory.
In this field, time is constantly updated while the communication
between logger and computer is taking place.
Acquisitions:Presents a series of parameters that define
how measurements will take place.
Interval: Defines the interval between readings: Minimum
interval is 1 (one) second.
Note: When the type of value logged is mean, maximum and
minimum values, the minimum interval is 10 seconds.
In Daily repetitions the user defines the time that daily logs will
take place.
Estimated time: In this parameter, the logger informs the
user how long it will take to occupy the full memory, in the
conditions set up during configuration.
Start of Readings: Readings can be started in one of five
different modes:
•Immediately: start as soon as programming is
considered to be ready, and is then sent (OK) to the
logger.
•Date: readings start at predefined date and time.
•Through Start Button: starts and interrupts readings by
pressuring the Start button, in the frontal part of the
logger, for two seconds. See Fig. 1.
•Setpoint: measurements start when a temperature
setpoint is reached. In this option, the setpoint value is
defined in the Channels field, where the Alarm parameter
is replaced by setpoint.
Daily Repetition: In Daily repetitions the user defines the
time that daily logs will take place.
Stop loggings: Options for the end of readings are:
•Full Memory: readings can be stored up to the full
memory capacity is reached.
•Wrap around: readings are continuous, replacing old
records with new ones as the number of readings
overpass the memory capacity.
•After: the logger stops readings after a certain number of
readings.
•Date: Readings stop at user-predefined date and time. In
case the logger memory capacity is reached before the
date defined, readings are stopped.
Channels: Shows parameters referring to each channel
separately. Channel 1 is the Temperature channel, and Channel 2
the Relative Humidity channel.
Fig. 12 – Logger Set Up (Channels)
Tag: Defines a name for the temperature registers.
Offset:Makes possible to correct the value logged.
Value: It defines how the value measured will be
registered. Options are:
•Instantaneous: The value logged will be exactly the
value measured at each interval defined. The minimum
interval between measurements is 1 seconds.
•Average: The value logged will be the mean of ten
measures taken within a predefined interval. The
minimum interval between measurements is 10 seconds.
•Maximum: The value logged will be the maximum value
found within ten measurements taken within a predefined
interval. The minimum interval between measurements is
10 seconds.
•Minimum: The value logged will be the minimum value
found within ten measurements taken within a predefined
interval. The minimum interval between measurements is
10 seconds.
Unit: Defines the unit of the value measured: ºC or ºF for
channel 1 (temperature) and only %for channel 2 (relative
humidity or dew point).
Alarm: Defines limit values that, when exceeded,
characterize an alarm condition. Alarm events are informed to the
user through the Alarm Indicator. The alarm limit value is shown
with a dotted line with the same color of the channel in the chart
from LogChart II software.
Input: Parameter available in channel 1 (temperature)
and channel 2 (humidity or dew point). It is also possible to
deactivate channel 1 and kepp the entire memory for humidity.
It is possible to select the Dew Point logging.
After filling all the fields select OK and settings are sent to the logger.
7OFFLOAD AND DATA VISUALIZATION
The transference of data to a PC is accomplished with the LogChart
II software. Measurements are displayed in tabular and graphical
form. Data can be saved in files for future analysis and
comparisons.
7.1 Offloading data
To offload data, click the icon Offloading Data, and turn the
interface towards the logger front. During data transference, a status
bar indicates remaining data to be transferred. Data offloading time
is proportional to the number of readings logged.
7.2 Visualizing data
At the end of values transfer, data can be displayed in a graphical
form.

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7.2.1 Chart window
It is possible to select a region of the chart to zoom in. Zoom
commands can be accessed through the View menu or through
zoom icons from the task bar.
It is also possible to select an area from the chart to zoom in by
clicking and dragging the mouse, thus creating a zoom region starting
from the upper left corner on the chart area.
This window shows minimum and maximum values of each channel.
It also shows the horizontal line of alarm values defined.
A text can be associated to the chart points by double-clicking a
curve point.
Fig. 13 - Logged data graph window.
Offloading measurements does not stop the process of data logging
and reading.
7.2.2 Measurements Table Window
To display measurements in a tabular form, press the icon Table
View. Values are presented in a tabular form, listing the
measurement time and value (Fig. 14).
Fig. 14 – Acquisitions table
7.2.3 General information table
This window shows some information about the logger whose data
were just read and its configuration. The screen can be displayed by
pressing the icon Parameter Viewing.
A text with notes about offloaded data can be inserted in the
General Information window (Fig. 15).
Fig. 15 – General Information
8MOST FREQUENTLY FOUND PROBLEMS
Communication with the logger fails:
Make sure the COM port is selected correctly and there is no other
program using the same port during communication attempts.
Make sure there is no physical obstacle blocking the infrared signal.
Make sure the cable is well connected to the PC port.
Make sure the port selected does not present any problem.
8.1 Logger Reset
When the user is not sure about the real condition of the logger
operation, it is possible to perform an enforced Reset by removing
the battery and waiting for 2 seconds to replace it. The logger will
return to the stand-by mode. If measurements were being made, it
will interrupt the process and start measurements again only when
a new set up is made. Implemented setup remains the same after
reset.
8.2 Additional Information
For further information, see the manufacturer web site.
9SPECIAL CARE
The logger is an electronic device and some basic care is required:
•When opening the device for battery replacement or connecting
sensors avoid touching the circuit for not causing damages
resulting from static electricity.
•Check battery polarity carefully.
•When closing the case, the cover must be properly tightened
back in its place such as to assure the sealing protection.
•Worn batteries should not be recharged, dismantled or
incinerated. After use, batteries must be disposed according to
local legal rules or returned to supplier.
Note: The transmitter must be fixed with the sensor capsule
directed downwards in order to assure the specific accuracy
and protection level.

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9.1 ATTENTION WITH SENSORS
Calibration of the humidity sensor can be changed whenever it is
exposed to contaminant vapor or external conditions of temperature
and humidity for prolonged time. To configure this function, follow
the steps below:
•Take the sensor out from the case.
•In case there are solid specks on the sensor, clean it with water.
•Put the sensor in an oven at 80 °C (+ -10 °C) for 24 hours.
•Let the sensor for 48 hours in a place with temperature between
20 and 30 °C and humidity over 75 % RH.
•Replace the sensor in the case.
Note: The sensor from this device may be damaged or uncalibrated
if exposed to chemical agents-contaminated atmosphere. Chloridric
Acid, Nitric Acid, Sulphuric Acid and Ammonia in high
concentrations may damage the sensor. Acetone, Ethanol and
Propylene Glycol may cause a reversible measure error.
10 WARRANTY
Warranty conditions are available on our website
www.novusautomation.com/warranty.