4 Applications Once you entered all factors, the Focus 4W calculates the curve. If the curve length (Len) is too large for a circle of the given radius, the curve is shortened. Note – Press [DSP] to switch between display screens. See also page 90. XYZ Select this option to specify the stakeout point by coordinates. 1. Press [4] or select XYZ in the Layout menu. 2. Do one of the following: 3. – Enter the point name that you want to establish and then press [ENT].
4 Applications 5. Ask the rod person to adjust the target position. When the target is on the intended position, the displayed errors become 0.000 m (0.000 ft). dHA Difference in horizontal angle to the target point R/L Right/Left (Lateral error) IN/OUT In/Out (Longitudinal error) CUT/FIL Cut/Fill Once a measurement is taken, the Cut/Fill value and Z coordinate are updated as the VA is changed. 6. To record the point, press [ENT]. The PT field defaults to the specified PT + 1000.
Applications 4 Advanced feature: Specifying a layout list by inputting points by range 1. Select the Fr/To softkey when the PT field is selected. 2. Enter the start point (Fr) and the end point (To). The range between Fr and To must be less than 1001 points. – If existing points are found between Fr and To, a point list appears. To highlight a point in the list, press [^] or [v]. To go to the layout observation screen, press [ENT].
Applications Remote distance measurement (RDM) - overview RDM or “Remote distance measurement” measures the horizontal distance, vertical distance, and slope distance between two points.
Applications 4 RDM (Radial) Choose this option to measure between the current point and the first point measured. 1. Press [1] or select RDM(Radial) in the Programs menu. 2. Sight the first point and press [MSR1] or [MSR2]. The distance from the station point to the first point appears. 3. 4. 5. Sight the second point and press [MSR1] or [MSR2]. The distances between the first and second point are displayed.
4 Applications REM Choose this option to measure a remote elevation. Note – A prism is required only at the sighting (target) point. Arbitrary point Sighting point Station point 1. Press [3] or select REM in the Programs menu. 2. Enter the height of the target. 3. Sight the target point and press [MSR1] or [MSR2]. 4. Loosen the vertical clamp and then turn the telescope to aim at an arbitrary point. The difference in elevation (Vh) appears. 5. Press [ESC] to exit.
Applications 4 Inverse Choose this option from the Cogo menu to calculate angle and distance between two coordinates. Press [1] or select Inverse in the Cogo menu. The Inverse menu appears. PT-PT inverse PT-PT calculates the distance and the angle between two input points. To calculate a PT–PT inverse: 1. Press [1] or select PT-PT in the Inverse menu. 2. Enter the first point number or name, and then press [ENT].
4 Applications 3Pt Angle If you choose 3Pt Angle, the Focus 4W calculates the angle between two lines defined by three points. To calculate a 3Pt angle: 1. Press [2] or select 3Pt Angle from the Inverse menu. P1 is the base point. Two lines are to be defined by P2 and P3, both from P1. 2. Enter the P1 point name. Alternatively, use the MSR softkey to take a measurement to the point. 3. Enter the second point (P2) to define the baseline, P1–P2. The angle (dHA) is measured from the baseline. 4.
Applications 4 Input Choose this option from the Cogo menu to calculate and manually input coordinates. To enter the Input menu, press [2] or select Input from the Cogo menu. There are three functions in this menu for recording new coordinate points. Azimuth+HD input To calculate a coordinate by an angle and distance input from the base point (P1), press [1] or select HA+HD from the Input menu. Enter the base point, P1. Type the point name and press [ENT].
4 Applications To enter P1 and P2, enter point names or take measurements to targets. Enter the plus-minus angle, horizontal distance, and vertical distance from the baseline defined by P1–P2. If you do not enter a value in the dVD field, the value 0.0000 is used. When you press [ENT] in the dVD field, a new point is calculated. The name in the PT field defaults to the last recorded point, + 1. To record the new point and return to the point input screen, press [ENT].
Applications 4 Area & Perm Choose this option from the Cogo menu to calculate area and perimeter. Press [3] or select Area & Perim in the Cogo menu. To take a measurement, enter the first point and press [ENT], or select the MSR softkey. In the upper right corner of the screen, a counter indicates how many points you have entered. To input point numbers consecutively, use the Fr/To softkey. See also Advanced feature: Entering a range of points, page 83.
4 Applications To start searching for matching points, press [ENT] in the To field. The counter shows the number of matching points found. When the search is complete, you are returned to the Input PT screen. Select the Calc softkey to calculate the area and perimeter, or enter point names in the PT field. Press [ESC] to return to the Input PT screen where the preceding point name appears.
Applications 4 Out(+) Dwn(-) Dwn(+) Out(-) A negative value in the Dwn field means the opposite direction along the defined bearing line. A negative value in the Out field is for the left-hand side of the bearing line. To calculate the coordinates of the point (PM), press [ENT] in the dVD field. You can change the Z coordinate here. To record the point, press [ENT] in the CD field. The coordinates are stored as a CC record.
4 Applications Calculating a bearing-bearing intersection A bearing-bearing intersection is the intersection point of two lines. To calculate a bearing-bearing intersection: 1. Press [1] or select Brng-Brng in the Intersection menu. 2. Enter the first point name and press [ENT]. Alternatively, to measure directly to the point, select the MSR softkey. 3. Define the first line by azimuth. 4. To define the line by two points, select the Pts softkey.
Applications 4 Calculating a bearing-distance intersection 1. Press [2] or select Brng-Dist in the Intersection menu. Brng-Dist calculates the intersection point formed by one line and one distance (radius). 2. Enter a point on the line. The line can be defined by two points or by a point and an azimuth. 3. Enter the second point (P2) as the center of the circle. 4. Enter the distance from P2: – To define the distance (HD) by two points, select the Pts softkey.
4 Applications Calculating a distance-distance intersection 1. Press [3] or select Dist-Dist in the Intersection menu. 2. Enter the first point name and press [ENT], or select the MSR softkey to measure directly to the point. 3. Enter the distance from P1 and press [ENT]. 4. To define the distance (HD) by two points, select the Pts softkey. 5. Enter P2 and the distance from P2 (HD). 6. To calculate the coordinates of the intersection point, press [ENT] in the HD field. 7.
Applications 4. Enter the perpendicular point to the line, or select the MSR softkey to take a measurement to the point. 5. To calculate the coordinates of the intersection point, press [ENT]. 4 If P1 and P2 are 3D points, the Z coordinate of the perpendicular point is calculated relative to the P1–P2 slope. 6. Enter PT and CD then press [ENT] to record the point. Advanced feature: Entering angle and distance offsets To display the offset input screen, select the O/S softkey.
4 Applications Recording measurement data To record points from any observation screen, press [ENT]. PT defaults to the last recorded PT, + 1. You can enter the PT name from the point list or the point stack. See Entering a point from the point list, page 53, and Entering a point from the point stack, page 52. To record the point, press [ENT] on the last field. If HA or VA is moved after you take a measurement, but before you press [ENT], the recalculated coordinates will be stored.
CHAPTER 5 Menu Screen In this chapter: Job Settings (basic job settings) Data Communication 1sec-Key Calibration Time 5 Use the MENU screen to access functions and settings. To display the MENU screen, press the [MENU] key.
5 Menu Screen Job Use the Job option to open, create, delete, and manage jobs. To open the Job Manager, press [1] or select Job from the MENU screen. If jobs are stored on the Focus 4 total station, the job list appears. It shows all the stored jobs with the newest job at the top of the list. See Opening an existing job, page 92. If no jobs are stored, the Create Job screen appears. See Creating a new job, page 92.
Menu Screen 3. 5 Do one of the following: – To check the job settings, select the Sett softkey. – To create a new job using the current job settings, press [ENT] or select the OK softkey. Job settings Job settings are separate from other temporary settings. Job settings are established when a job is created, and cannot be changed. This ensures that the data in a job is correctly stored in the database, and that all necessary corrections are applied when you store each record.
5 Menu Screen Screen 3 If you select US–Ft or I–Ft, an additional settings screen appears. Use this screen to specify whether to display values in Decimal–Ft or Ft–Inch. VA zero Zenith / Horizon Order NEZ / ENZ Deleting a job Note – There is no undelete function in Job Manager. Before you press [ENT] or select DEL, make sure that the selected job is the one that you want to delete. 1. In the job list, highlight the job to delete. 2. Select the DEL softkey. A confirmation screen appears. 3.
5 Menu Screen Setting the control job A control job has the same format as a standard job. You can open and modify it like any other job, and you can use it to record any measured data. To set the control job: 1. Highlight the job that you want to use as the control job. 2. Select the Ctrl softkey. A confirmation screen appears. 3. Do one of the following: – To set the selected job as the control job, press [ENT] or select the Yes softkey.
5 Menu Screen Settings (basic job settings) Use the Settings menu to configure the basic job settings. Press [2] or select Settings on the MENU screen. Some job settings, as identified in the following sections, cannot be changed once a job is created. If you attempt to change any of these settings while a job is open, a confirmation screen appears, asking you to create a new job with the new settings, or to work with the new settings without recording any data. See Settings, page 141.
Menu Screen 5 Temperature and pressure corrections 10000.0 106 × P × --------------------------------------------- 13.5951 × 980.665 K = 275 – --------------------------------------------------------------------------273 + T K SD' = 1 + --------------------- × SD 1000000 SD Slope dist. (before adj.) SD' Slope dist. (after adj.) K Compensation coefficient P Pressure (hPa) T Temperature (°C) Sea-level corrections HD × R e HD' = -----------------------R e + Z STN HD Horizontal dist.
5 Menu Screen Curvature and refraction corrections Because the surface of the earth is curved, the vertical difference (VD and Z) at the measurement point, as referenced to the horizontal plane, inevitably includes some error. This error is called curvature error. Also, because the density of the air surrounding the earth decreases with altitude, light is refracted at different rates at different altitudes. The error caused by this change in refraction is called refraction error.
Menu Screen 5 Coordinate Press [3] or select Coord. in the Settings menu. The Coordinate menu appears. Order NEZ / ENZ Label XYZ / YXZ / NEZ(ENZ) The Order cannot be changed once a job is created. Communications Press [4] or select Comm. in the Settings menu. The Communication menu appears. Ext.Comm Port NIKON / SET Serial/Bluetooth Note – This field appears only when the optional Bluetooth® wireless technology is on-board.
5 Menu Screen If you select US-Ft or I-Ft, an additional settings screen appears. Use this screen to specify whether to display values in Decimal-Ft or Ft-Inch. Power saving To open the Power Save menu, press [6] or select PwrSave in the Settings menu. Main unit OFF / 5 min / 10 min / 30 min EDM unit OFF / At Once / 0.1 min / 0.5 min / 3 min / 10 min Sleep OFF / 1 min / 3 min / 5 min . Recording Press [7] or select Rec in the Settings menu. The Rec Menu appears.
Menu Screen 5 Other settings Press [8] or select Other in the Settings menu. The Others menu appears. <
5 Menu Screen Data Use the Data menu to view or edit records. To display the Data menu, press [3] on the MENU screen. Raw and coordinate data is stored when the Data Rec setting is ON. If the Data Rec setting is OFF, no data is recorded in [MENU] / Data / Data Rec. Viewing records B Tip – You can view data at any time, even in an observation screen. Viewing RAW data To show the raw data records in a list, press [1] in the Data menu. The newest record is at the bottom of the screen.
Menu Screen 5 ST records ST (station) records contain ST, HI, BS, and AZ fields. Press [DISP] to switch between the screens: • The first screen shows ST, HI, BS, and AZ • The second screen shows X, Y, Z, PT, and CD SO records SO records are layout (L-O) shots. There shots are recorded in stakeout functions.
5 Menu Screen Viewing coordinate data To show the coordinate data records in a list, press [2] in the Data menu. The newest record is at the bottom of the screen. To scroll through the records, press [^] or [v]. To move up or down one page, press [<] or [>]. Press [ENT] to see more detailed information about the selected record. The header (XYZ, YXZ, NEZ, or ENZ) depends on the Coord. Label setting in [MENU] / Settings / Coord. See also Coordinate, page 99.
Menu Screen 5 The system also deletes the corresponding coordinate data when you delete an SS or SO record. Deleting coordinate records 1. In the XYZ screen, use [^] or [v] to highlight the record that you want to delete. Then select the DEL softkey. 2. A confirmation screen appears. a. To delete the selected record, press [ENT] or select the Yes softkey. b. To cancel the deletion of data, press [ESC] or select the No softkey.
5 Menu Screen 3. If you select Yes, a warning screen appears. Select the DEL softkey to confirm the deletion. Note – You cannot press [ENT] in this screen. All observations from the station that you selected are deleted.
Menu Screen 3. Press [ENT] in the last line of the edit screen. A confirmation screen appears. 4. Do one of the following: – To accept the changes and return to the data view screen, press [ENT] or select the Yes softkey. – To return to the Edit screen, press [ESC] or select the No softkey. 5 Editing coordinate records You can edit PT, CD, and coordinate values.
5 Menu Screen 4. Do one of the following: – To accept the changes and return to the data view screen, press [ENT] or select the Yes softkey. – To return to the Edit screen, press [ESC] or select the No softkey. Editing station records Note – The system will not recalculate measurements if you change the station record. You will need to recalculate all coordinate and raw data that was collected from an edited station record in your postprocessing software. 1.
