NOVUS LogBox-RHT - Manual

NOVUS AUTOMATION 1/6
LogBox-RHT
TEMPERATURE AND HUMIDITY LOGGER – INSTRUCTIONS V 1.1x A
1 INTRODUCTION
LogBox–RHT is an electronic logger of temperature and relative
humidity. There are sensors that measure such data and store them
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 logger is supplied with Logchart-II software, which enables to set
up the logger operation mode. It is also used for data visualization.
Other parameters such as end of measurements, logging interval, etc.,
are easily selected through the LogChart-II software.
Measurements can be exported to and opened in other applications,
such as spreadsheet programs.
1.1 PACKAGE CONTENTS
Besides this manual, the user must check if the items below
accompany the product.
- The electronic logger LogBox-RHT;
- A CD-ROM with the Logchart-II software and a USB driver;
- A communication interface upon request.
1.2 Identification
The identification label is on the logger body. Check if the features
described are in accordance with your order. The RHT model is
designed to measure temperature and relative humidity.
The following elements are shown in the logger front.
Figure 01 – Logger Front
START / STOP button: Can be configured to start or stop logging
when pressed.
IR Communication Window: PC-Logger communication area. The
communication interface should be pointed towards this window.
State indicator (LOG): While in stand-by (not logging) or after a
series of measurements is ended, it flashes once at every four
seconds. During logging it flashes twice at every four seconds.
Alarm Indicator (AL): Warns the user as to alarm conditions.
Whenever an alarm situation takes place it will flash once at every
four seconds, until a new configuration is applied to the logger.
2 TECHNICAL DATA
Measure Range Temperature: -40 °C to 120 °C.
Relative Humidity (RH): 0 a 100 %.
Accuracy See Figure 02.
Note: A measure error can be ruled out using the
OFFSET parameter in the Logchart-II software.
Measurement
Resolutions Temperature: 0.1 °C.
Relative Humidity (RH): 0,1 %.
Memory capacity 32,000 (32 k) logs.
16,000 temperature and 16,000 humidity logs
or 32,000 temperature logs when relative
humidity is disabled.
Measurement Interval 1 second min.
18 hours max.
Power supply 3.6 V lithium battery (1/2 AA), built-in
Estimated autonomy Higher than 200 days with one weekly
download and 5 minutes measuring interval.
Battery life depends heavily on data retrieval
frequency.
Operating temperature From –40 °C to 80 °C
Case Polycarbonate
Protection Suitable for products with protection level IP65.
See “Special Care” section.
Electronic circuit case: IP65; Sensors capsule:
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 Ir/USB or Ir/Serial
LogChart-ll software
operation environment Set up Software for Windows 95, 98, NT, 2000
and XP.
Menus in Portuguese, English or Spanish.
Sets up, reads and displays data on the
screen.
2.1 Measurement Accuracy
RH Accuracy
Figure 02 – Measurement Accuracy
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.