Our current dEX web interface is not compatible to flash player plugin version 30 or newer, thus you will experience slow response on key stroke to the display. We will release the next version of dEX free of flash player, however for a time being you will need to downgrade flash player plugin from your web browser.
Some plugin is bundled with web browser such as Google Chrome, you will need
dataTaker does not have automatic detection on daylight saving however it is possible to introduce time manipulation through the code.
This is the code Jairus Pascoe from Metro Train which address daylight saving in Melbourne. Daylight saving in Melbourne start on 2 am the first Sunday of October and end on 2 am the first Sunday of April.
Current measurement using internal shunt resistor may prove difficult to achieve because there is measurement relay which separate output circuit of the sensor with shunt resistor. Using a default measurement delay of 10 ms may not be enough for some sensor.
Thus the only solution is increasing measurement delay, however some sensor may need a couple second to establish stable current
Our distributor in Chile sent us a request to implement PenMan-Montieth formula for evapotranspiration measurement using dataTaker. This formula requires several parameters that need to be calculated first from 10 measurements:
temperature (average, maximum and minimum)
relative humidity (average, maximum and minimum)
wind speed average
altitude from sea level
We manage to
This time I will explain about some possible causes of error related modem messages:
SESSION: Failed [Network check] - will retry This error is related to connection testing by pinging to dataTaker website after the internal modem established a data connection. If the pinging is unsuccessful, data connection will be dropped. There are 2 possible issues:
This topic will cover programming method to read raw data of precipitation spectrum from a disdrometer: https://www.ott.com/en-us/products/meteorological-sensors-26/ott-parsivel2-laser-weather-sensor-2392/.
Precipitation spectrum is useful to classify the type of precipitation based on the size of the droplet (diameter equivalent) and its velocity. Each properties of droplet (size and velocit
10 kohms range is one of dataTaker series 3 measurement limitation, however there is method to pass this limit without even using a parallel resistor depicted on R6 wiring configuration of resistance measurement (DT8x User Manual).
Resistance measurement is obtained by excite a resistance device with current source, then measure the voltage across. Within dataTaker this voltage reading will g
This topic will show how to create UNIX timestamp as alarms text.
'11CV – ten thousands part of number of days since 1 January 1970 expressed in second
'12CV – thousands and hundreds part os number of days since 1 January 1970 expressed in second
'13CV – tens and ones part of number of days since 1 January 1970 expressed in second
'14CV – initial 4 digits of UNIX time
This topic is about reading MODBUS function 23 which is not possible using direct syntax of dataTaker. This is related to Mastervolt Mass battery charger : https://www.mastervolt.com/products/mass-24v/mass-24-25-2-230v/
There are several requirement prior of MODBUS reading:
you will need to do the reading using SERIAL syntax rather than MODBUS syntax
you will need to know MODBUS polling s