Modify transmission settings - HMT140

HMT140 User Guide

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User guide

Before making changes to transmission settings, consider the impact to battery life.

  1. Make sure the HMT140 cover is open and the correct batteries are installed.
  2. Turn on HMT140 and wait 5 seconds to make sure the startup process completes.
  3. Plug the USB connector in HMT140 Configuration Cable to the computer, if it is not already connected.
  4. From the Start menu, open HMT140 Utility.
  5. Connect the end of HMT140 Configuration Cable labelled USB Wi- Fi Programmer to the 4-pin HMT140 CONFIG header.
  6. On the HMT140 Utility Setup tab, click Retrieve to identify HMT140 and view current settings.
  7. On the Sensor tab, select from the following options:
    • Transmit Period: Select how frequently HMT140 transmits data. In the event of an alarm condition, transmission frequency is overridden automatically. If you require a faster transmit period, HMT140 Utility version and higher provide additional options. Select the Options menu and then Advanced. Check the option Extended Transmit.
    • Tries: Select the number of transmission attempts permitted for the specified Transmit Period.
      CAUTION Increasing the transmission frequency will deplete batteries more rapidly.

      For example, if you select 15 minutes for the Transmit Period, and 3 for the number of Tries, HMT140 will attempt to transmit every 15 minutes. If the transmission does not complete successfully, it will make 2 additional transmission attempts, then will go into ‘sleep’ mode until the next scheduled transmit period.

    • Logging Period: Specify how often HMT140 will log I/O into the log buffer. If you are using HMT140 Utility version or higher and require a more frequent log period, select the Options menu, then Advanced, and check the option Log Periods.
    • Enable Beeper/Enable Push Button Control of Beeper: Select the option to enable or disable the button control of the Beeper (whether you want to be able to turn the Beeper on or off with the push button on HMT140). It is also possible to turn the Beeper on and off by holding down the SERVICE button for approximately 5 seconds. The Beeper is enabled by default. There is no external Beeper status indicator. It must be enabled/disabled with the SERVICE button.
    • Enable Proximity Attention Sensor: Select this option to enable or disable the proximity attention sensor. The sensor is used to wake up HMT140, turn on the display (if present), and to force HMT140 to send a data packet to the host. If your HMT140 does not have an LCD or is installed in an area where the IR sensor may be triggered more frequently (due to low-light, high-traffic or transmission obstacles), turn off the sensor to save battery life.
    • Display On Time: Select the length of time the display stays on (choose a minimum length of time to save battery power).
    • HMP110 Polltime: If your HMT140 uses an HMP110 probe, select how frequently HMT140 polls the HMP110 probe (leave at the default setting, 2 minutes, to save battery power).
      The polling rate should be equal to or faster than the Logging Period, otherwise you will record the same measurement multiple times.
    • Low Battery Alert: Specify at what percentage of battery power remaining you want the Low Battery indicator to display and notify the host software.
    • Stop Xmit at Battery Remaining: Specify at what percentage of battery power remaining you want HMT140 to stop transmitting data to the host (to save battery power). Once this threshold is reached, HMT140 continues to log data and function normally, but it will not transmit data using the Wi-Fi radio.
  8. Use the Display Contrast interactive control to set the HMT140 display contrast. When the Up, Down or Set buttons are clicked, HMT140 Utility will attempt to set the contrast.
    The contrast value can only be set when you click Set. The value is not set with the Update or Retrieve buttons.
  9. Click Update. HMT140 Utility will send these settings to HMT140 and then reboot. After the settings are successfully configured, a dialog displays Configured!. If there was an error sending the settings, HMT140 Utility will display the error in a popup dialog window. The center panel in the bottom status bar will display the update status.
  10. Select the Status tab to check that the settings appear as configured. Click Get if they do not appear automatically.
  11. Disconnect HMT140 Configuration Cable from HMT140 and wait 8 seconds.
  12. Press the SERVICE button on HMT140.

    Optional: Enter a name for the saved settings on the Set up tab in the Saved Settings field and click the disk icon to save. If HMT140 is used with more than 1 wireless network, enter a name in the Saved Network Settings field and click Save. Other network settings files can be saved and recalled from the Saved Settings field.