Table of Contents
Advertisement
Sample Time
Low Power Mode
Battery Type
Usable Capacity
Sensor mA from 5V Excitation
Usage Per 24 Hour Period
Mantracourt Electronics Limited
This is the length of time in milliseconds that the input is sampled before the
value is transmitted. This can vary between 5 milliseconds and close to the
Transmit Interval.
The Sample time should be set to at least twice the
maximum time period that is to be captured to ensure
accurate capture of incoming pulses.
A shorter sample time means that the module is awake for less time so battery
life is increased but at the expense of a reading with less noise free resolution.
You can vary this to see the effect on battery life.
Unless the transmitter module is non battery powered this should be set to Yes.
In between transmissions the transmitter module will enter sleep mode which,
for some modules such as the strain gauge transmitter module, will have a
massive effect on battery life.
A Reason for not using Low Power Mode would be if using the module in a
Master-Slave arrangement with PC for example.
This is not a parameter of the module but information used by the battery life
guide. You can choose from some preset batteries or choose custom to allow
you to select your own battery capacity. See below. This will also offer to change
the Battery Low Level if the level suitable for the chosen battery is not the level
currently set.
This is not a parameter of the module but information used by the battery life
guide. This is the capacity of the battery in amp hours and has a profound effect
on battery life calculations. This capacity needs to be calculated from battery
manufacturer's data sheets to take into account that you can only use batteries
down to 2.1 volts so in the case of twin AA cells this would be 1.05 volts.
Generally the usable capacity will not be as high as that advertised by the
battery manufacturer. Temperature and internal resistance of the battery are not
taken into account in the guide.
This is the current drawn by any sensor attached to the 5 V on board power
supply.
Enter the number of hours per 24 hour period that the module will be turned on
and transmitting.
445
T24 Telemetry User Manual
Advertisement
Table of Contents
