USB-502 RH/Temperature Data Logger

USB-502
RH/Temperature Data Logger
The USB-502 data logger measures and stores up to 16,382 relative humidity
and 16,382 temperature readings over 0 to 100% RH and -35 to +80 °C (-31 to
+176 °F) range. The user can easily set up the logging rate and start-time,
download the stored data by plugging the module straight into a PC's USB port,
and run the purpose-designed software under Windows 2000/XP/Vista. Relative
humidity, temperature, and dew point (the temperature at which water vapor in
the air begins to condense) data can then be graphed, printed and exported to
Excel. The data logger is supplied complete with a long-life lithium battery,
which will last for up to a full year. Logger status is indicated by two flashing
green/red LEDs. The data logger is protected against dust/moisture ingress to
IP67 when the protective cap is fitted.
Features
Control Software
0 to 100 % relative humidity range
-35 to +80 °C (-31 to +176 °F) range
Dew point calculated with application software
USB interface for set-up and data download
User-programmable alarm thresholds for RH & T
Bright green/red LED indication
Replaceable long-life lithium battery
IP67 protection
The easy-to-install and use USB-500 Series Data Logger Application
software runs in Windows 2000/XP/Vista (Home and Professional
Editions). It allows the user to configure the USB-502 logger and
download and display the data graphically in a powerful strip chart.
The software also provides an easy export to Excel™.
The latest version of the application software may be downloaded
from w w w. m c c d a q . c o m
Setup Options
Logger name
°C or °F
Logging rate intervals (10s, 1m, 5m, 30m, 1hr, 6hr, 12hr)
High and low alarm thresholds for RH and temperature
Start date and start time
Ordering Information
Part Number
USB-502
Description
Price
RH/Temperature Data Logger $82
(Logger unit, software CD, battery)
USB-502 Specifications
Specification
Relative Humidity
Temperature
Dew Point
Min.
Measurement range
Repeatability (short term)
Accuracy (overall error)(20–80 %RH)
Response time
Long term stability
Measurement range
Repeatability
Accuracy (overall error)
Response time
Max.
Unit
100
%RH
%RH
%RH
sec
%RH/yr
+80 (176)
°C (°F)
°C (°F)
°C (°F)
sec
±0.2
±3.5**
5
1
-35 (-31)
±0.2 (±0.4)
±1 (±2)
20
Accuracy (overall error)(25°C, 40–100 %RH)
Operating temperature range
Typ.
0
±2.5 (±5)
±2 (±4)***
-35 (-31)
1/2AA 3.6V lithium battery life
°C (°F)
+80 (176)
1*
°C (°F)
Year
* Depending on sample rate, ambient temperature and use of alarm LEDs
** This specifies the overall error in the logged readings, for relative humidity measurements between 20 and 80%RH.
*** This specifies the overall error in the calculated dew point, for relative humidity measurements between 40 and 100%RH at 25°C.
Dimensions All dimensions in mm (inches)
26.4 (1.04)
internal RH/temp
sensor location
103 (4.06)
26.4 (1.04)
www.mccdaq.com
info@mccdaq.com • (508) 946-5100
USB-502
RH/Temperature Data Logger
LED Flashing Modes
The USB-502 features 2 bi-color LEDs
Green/Red LED
%RH
%RH
°C/°F
No LEDs flash
- No logging started. Start logging.
or
- Battery fitted but completely discharged. Replace battery.
or
- No battery fitted. Fit battery, start logging.
Plug the data logger into the PC and run the control software to find out
which condition applies.
Alternating green double flash every 10 seconds
- Logger configured for delayed start. No action needed, logger
will start at a later date and time.
Alternating green single flash every 10 seconds
- Logger operating.
- Last stored Humidity and Temperature readings within set
alarm levels.
Green/Red LED
°C/°F
One LED is for temperature measurement, the
other is for RH. Each is clearly marked on the
logger. To save power, the status indication
alternates between the two channels every 10
seconds. So first you will see the status of the
temperature logging; 10 seconds later you will
see the status of the RH logging and so on.
Key
(if latching is enabled, then a flashing Green LED indicates that no
alarm condition has ever been logged)
Alternating between green and red single flash every 10 seconds
- The green LED indicates the parameter that is within set alarm
levels.
- The red LED indicates the parameter for which the Low Alarm
level has been exceeded.
(if latching is enabled, then the alarm condition may have been
triggered a while ago)
Alternating between green single and red double flash every 10
seconds
- The green LED indicates the parameter that is within set alarm
levels.
- The red LED indicates the parameter for which the High Alarm
level has been exceeded.
Single flash
The channel is logging, no alarm
Double flash
Delayed start
Triple flash
Logger full, no alarm
(if latching is enabled, then the alarm condition may have been
triggered a while ago)
Single flash
The channel is logging, low alarm
Alternating between green or red triple flash every 10 seconds
Double flash
The channel is logging, high alarm
In this condition, latching is automatically enabled, and a flashing
Green LED indicates that no alarm condition has been logged.
Triple flash
Logger full, alarm
Alternating indicator
- Warning: Logger memory is full. Download data.
Simultaneous red single flash every 60 seconds
- Warning: Battery is nearly discharged. No alarm conditions
are indicated. Fit new battery and download data.
Once the battery is exhausted, no LEDs will flash.
Battery Replacement
Measurement Computing recommends that the battery be replaced every 12 months, or prior to logging critical data.
The USB-502 does not lose its stored readings when the battery is depleted or when it is replaced; the data logging process will
however be stopped and cannot be restarted until the battery has been replaced and the logged data has been downloaded to PC.
Use only 3.6V 1/2AA lithium batteries. Check with the supplier that the battery is 'press fit' and is not fitted with solder tabs. Before
replacing the battery, remove the USB-502 from the PC.
Note: Leaving the USB-502 plugged into the USB port for longer than necessary will cause some of the battery capacity to be lost.
WARNING: Handle lithium batteries carefully, observing warnings on battery casing. Dispose of in accordance with local regulations.
www.mccdaq.com
info@mccdaq.com • (508) 946-5100