Operation: Part 2

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Transmitter power output

The transmitter supports several power output modes to help you select the optimal settings for your requirements whilst helping to prolong battery life.

Adjusting power output

NOTE: On iLOC enabled models, you can adjust the transmitter’s power output remotely using the locator.

To adjust the power output:

  1. Press the up arrow.png or down arrow.png keys to increase or decrease power output.

Boost (Tx-10 & Tx-10B only)

Boost allows the Tx-10 transmitter to output its maximum output power. Boost mode can be set to operate for a specified period of time.

To configure boost:

  1. Press the power key.pngkey to enter the menu.
  2. Scroll to the BOOST menu using the up arrow.png or down arrow.pngkeys.
  3. Press the measure key.png key to enter the BOOST menu.
  4. Set the BOOST duration using the up arrow.png or down arrow.png You can choose 5, 10, 15 and 20 minute periods or ON for continuous operation.
  5. Press the frequency key.png key to accept your changes and exit the BOOST menu.
  6. Press the power key.png key to exit the menu.

To enable boost:

  1. First configure the boost duration using the procedure above
  2. Press and hold the up arrow.png key until BOOST appears on the transmitter LCD.
  3. The transmitter will automatically exit boost mode after the selected duration.

To disable boost:

  1. Press the down arrow.png key to disable boost.

 

Transmitter Eco mode

When using alkaline D-Cells in Tx-5 and Tx-10(B) transmitter models you can extend the effective use of the batteries by enabling Eco mode.

In Eco mode the power output of the transmitter reduces when the batteries can no longer provide the required output power.

When Eco mode is active and the power output has been reduced, the display alternates between ‘POWER‘ and the current output power level.

The transmitter will emit three beeps every time the power is reduced. It will then continue emitting two beeps each minute whilst it operates at a reduced power level.

To enable or disable Eco mode

  1. Press the power key.pngkey to enter the menu.
  2. Scroll to the BATT menu using the up arrow.pngor down arrow.pngkeys and enter it by pressing the measure key.pngkey.
  3. Scroll through the battery options using the up arrow.png or down arrow.png keys until ALK is displayed.  Press the measure key.png key. 
  4. Use the up arrow.png or down arrow.png keys until ECO is displayed and press the frequency key.png key to enable Eco Mode.

Or

Select NORM and press the frequency key.png key to disable Eco mode.

  1.   Press the power key.png key to exit the menu.

 

Maximum Voltage

On high impedance applications such as small diameter cables, tracer wires, etc, sometimes it can be difficult to get a signal to flow when using the direct connection method. Increasing the output voltage of the transmitter can maximize the amount of signal coupled onto the utility.

The transmitter can operate in either low voltage (30V) or in high voltage (90V). In normal operating mode the transmitter will operate in low voltage mode.

warning icon.pngWarning: When operating the transmitter in high voltage mode, always make sure that the transmitter is switched off when connecting or disconnecting direct connection leads.

To set maximum output voltage to 90 volts:

  1. Press the power key.png key to enter the menu.
  2. Scroll to the MAXV menu using the up arrow.png or down arrow.pngkeys.
  3. Press the measure key.png key to enter the MAXV menu.
  4. Set the MAXV to HIGH using the up arrow.png or down arrow.png keys.
  5. Press the frequency key.pngkey to accept your changes and exit the MAXV menu.
  6. Press the power key.png key to exit the menu.

When in high voltage mode the transmitter will display a high voltage warning triangle. 

Each time the transmitter is switched off the transmitter will revert back to the default low voltage setting.

 

Measure mode

The transmitter has the capability of providing impedance measurements by determining the resultant impedance across the crocodile clips of the Direct Connection lead while connected to the utility. These measurements can be useful when assessing sheath fault severity. It is also possible to measure potential voltage that may be present on utilities to warn of potentially dangerous or harmful voltages present.

In measure mode the measurement is derived from an AC signal applied to the utility from the transmitter

Impedance & voltage measurements

  1. Connect the Direct Connection leads to the utility and switch on the transmitter.
  2. Hold down the measure key.png key until MEAS is displayed and the measuring icon is activated.The transmitter display will now indicate the voltage level measured across the connection leads.
  3. Press the measure key.png key once and the display will indicate the impedance measured across the connection leads.

The measurement icon will display the following symbols:

measurement icon.png

Impedance and voltage measurements

      4. To exit MEAS mode hold down the measure key.png key until the display reverts back to the normal operating screen.

Impedance measurements using active frequency

  1. Connect the Direct Connection lead to the utility and switch on the transmitter.
  2. Select the preferred frequency and output the signal.
  3. Press the measure key.png key once and the display will indicate the impedance measured across the connection leads and also the output power of the transmitter.
  4. Press the measure key.png key once to return to the normal operating screen.

 

CALSafe

Usage logging equipped RD8200 locators can be set to disable them once they are beyond the expected service / calibration date.

When the unit is within 30 days of the service due date the unit will display at startup the number of days left. The locator will stop functioning on the service due date.

CALSafe™ is disabled by default. You can edit the CALSafe service due date, and enable or disable the function using the RD Manager Online PC software package. Refer to the RD Manager Online operation manual for further information.

 

Usage-Logging

RD8200G logging and GPS locator feature a powerful data logging system which records all the instrument’s critical parameters (including GPS position, if available) and warnings in its internal memory each second.

The automatic logging system is always active and cannot be disabled. Its memory is capable of storing at least 500 days of normal usage data – based on 8 hours operation per day. Logs can be retrieved using the RD Manager Online PC application for usage analysis and survey validation. Refer to the RD Manager Online operation manual for further information.

 

UTIL mode

The RD8200G GPS locator UTIL mode can be used to set the utility and service type being located during a survey.

 

The full list of available utilities is:

Display

Utility / Type of marking

>GAS<

Gas

>TEL<

Telecom

>SEW<

Sewer

>TMA<

Temporary Markings

>H2O<

Potable Water

>PWR<

Power

>EXL<

Excavation Limit

>IRR<

Reclaimed Water

>CTV<

Cable TV

 

To select a utility:

If UTIL is enabled the locator will not start until a selection is made.

  1. Press the power key.png key to turn on the locator:
  2. The display will show the word TICKT followed by UTIL
  3. Press the antenna key antenna.png and use the up arrow.png or down arrow.png keys to select the desired utility or marking type
  4. If required press the antenna key antenna.pngagain and use  the up arrow.png or down arrow.png keys to select DIST (for a service cable or pipe) or TRANS (for a main distribution cable or pipe).
  5. Press the frequency key.png key to confirm your choices and to start the locator – you may have to press the frequency key.png  key up to 3 times.

The selections are stored into its internal memory and can be viewed in the usage logs as mentioned in Usage-logging paragraph.

A utility can be switched from one type to another or the service type can be changed during a survey by a long press of the Survey Measurement key survey measurement key.png.

Enabling or disabling individual utilities:

  1. Press the power key.png key to enter the menu.
  2. Scroll to the ULIST menu using the up arrow.png or down arrow.pngkeys.
  3. Press the antenna.png key to enter the ULIST menu.
  4. Select a utility or marking type using the up arrow.png or down arrow.png keys.
  5. Press the antenna.png to enter the menu of the utility type and use the up arrow.png or down arrow.pngselect ON or OFF.
  6. Press the frequency key.png key to accept your changes.
  7. Press the frequency key.png key again to exit the ULIST menu.
  8. Press the frequency key.png once again to exit the main MENU.

 

GPS (GNSS)

The RD8200 locator can be paired to an external GPS device or use its internal GPS module when fitted to detect and store its latitude, longitude and accurate UTC time alongside its locating data using RD Map™+ or the automatic logging system (8200G model only).

The presence of GNSS data allows for the data to be mapped easily and to export and save the information directly into GIS systems.

GPS menu

To enter the GPS menu:

  1. Press the power key.png key to enter the menu.
  2. Scroll to the GPS menu using the up arrow.png or down arrow.png keys.
  3. Press the antenna.png key to enter the GPS menu.

Use the up arrow.png or down arrow.pngkeys to scroll through the 5 options:

  • RESET: Select YES to reset the internal GPS (8200G GPS equipped model only).
  • INT: Select this to use the internal GPS if present.
  • EXTM: Select this to use GPS from RD MAP+ (features need to be enabled in the app).
  • OFF: Select this to switch off the internal GPS module and save battery.
  • SBAS: Select this to switch ON or OFF SBAS (Satellite-Based Augmentation System).

SBAS can improve GPS accuracy, particularly in N.America

EXIT: Select this to exit the GPS menu

  1. Press the frequency key.png key to accept your changes and exit the GPS menu.
  2. Press the power key.png key to exit the menu.

Note: When SBAS is ON the GPS system may take longer to lock.

Internal GNSS ‘GPS’

RD8200G GPS locator have an internal GNSS module. When internal GPS is enabled, it will automatically try to “lock” onto a number of satellites as soon as the RD8200G unit is turned on.

The time required for the GPS module to lock onto the GPS system varies depending on the length of time that has passed since the last time the locator was used, and on the presence of obstacles (like high buildings, trees, etc.) that obstruct sight to the sky.

If the unit has not been used for several days the time to first fix may take up to several minutes.

The RD8200G locator display provides a number of icons indicating the presence of an internal and active GPS and when this has locked to the GPS system, the quality of the signal received or numbers of satellites received.

The accuracy of the GPS module is affected by the number of satellites received and best accuracy is only reached when the signal quality is at its maximum.

 

gps icons.png

GPS Icons

 

The LCD GPS operation icons provide visual information about the status of the internal GPS module:

gps status.png

GPS status and satellites in view

 

 

 

 

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