Impreza
Brantz Architect 1 and 2
 
Instructions issue: Nov 2000
Architect 1  

The Brantz Architect 1 special purpose tripmeter is designed for high accuracy measurement from a road vehicle at any U.K. legal speed. The four digit Light Emitting Display features top quality 0.6 inch digits and an accuracy of better than 99.6%. High quality on/off and other controls, along with solid-state electronics ensure reliability in service. The meter measures approximately 120mm x 100mm x 50mm and may be fitted to the cabin area of any 12 volt vehicle in less than two man-hours. Distance information is fed to the meter for correlation from a sensor normally fitted to the speedometer cable drive. See the list of alternative sensors available if your vehicle does not have a speedometer cable. Alterations to the vehicle's road wheel size (such as the fitting of snow tyres, or general tyre wear or the transference to another vehicle can be quickly and accurately accommodated by means of the electronic calibration. The meter has the facility of zeroing the measured readings, counting backwards, and by holding the zeroing button pressed whilst powering up the instrument, the decimal point of the readout will shift one place to the right to show 99.99 km or miles instead of the usual 9.999. Distances do of course roll over when the readout reaches 9999.

Architect 2  

The Brantz Architect 2 has all the facilities of the Architect 1 plus a second readout which can be zeroed independently or frozen to take spot readings, and is the popular choice from the Architect range if funds will not allow for the Laser 3 or the Surveymaster, as it permits two readings to take place at on single vehicle journey.

Calibration  

Calibration procedure is the same for Architect 1 and 2 meters:

Set the rotary calibration switches to 000 and drive to the start of an accurately measured Km. Zero the readout(s) and drive the distance exactly. The figure which has accumulated on the readout is entered onto the rotary calibration switches. The meter should now be calibrated to read metres accurately. Drive back over the kilometre to confirm this. Calibrate for miles as above but substitute the word 'mile' for the word 'kilometre (Km) '.

Compact 1  

Calibration procedure is similar to Architect 1 and 2 meters:
Set the rotary calibration switches to 0000 and drive to the start of an accurately measured Km. Zero the readout(s) and drive the distance exactly. The figure which has accumulated on the readout is entered onto the rotary calibration switches. The meter should now be calibrated to read metres accurately. Drive back over the kilometre to confirm this. Calibrate for miles as above but substitute the word 'mile' for the word 'kilometre (Km).

Measuring just 120mm x 60mm x 30mm the tripmeter is designed to be light and transportable. The black digits are backlit and indicate distances in the format 123.456 on one (Total) screen and 123.456 on a second (Trip) screen. Four digits are shown at any one time, the screens can be swapped and the digits can be shuffled along to show the area of the six digit format which is of interest from say 123.4 km to 3.456 km as in the example. The format could read in miles instead of km. The tripmeter head is fitted with a plug and lead so that it is easily removed from the vehicle, leaving a sensor and a socket in that vehicle. Brantz Compact 1 precision tripmeter. Wiring: The tripmeter plugs into the socket provided. Do not cut into the wiring section between the tripmeter and its' plug. The socket has two cables coming from it. The black power cable contains a brown wire which should be connected to +12 volts via a quarter amp fuse and a switch if you do not wish to use the plug as an on/off connector. The green/yellow wire in the black cable should be connected to -12 volts. The grey cable coming from the socket should have three wires in it and is connected to the sensor. If it is the speedometer cable type sensor the three colours will go to three matching colours on the sensor. On no account should the wires in the grey cable be connected to anything other than the sensor or damage will occur. The sensor is fitted to the speedometer cable so that the inner rotates freely with the inner core of the speedometer cable. Calibration: Set the four rotary switches to 0000. Switch on the tripmeter and proceed to the start of a measured kilometre or mile according to which units you wish to use. Press the Z button to zero the screen you are using and drive the measured distance. The screen flashes alternately as CAL then a four digit number. This four digit number will increase until you reach the end of your measured distance where you should stop. Enter this four digit number onto the rotary switches. Your tripmeter is now calibrated for the car's present combination of gears and tyre size. Note this number and repeat the procedure if you have other tyres or gears you wish to fit during the period of use. Operation: The digits are permanently backlit, but pressing the L button will increase the backlight intensity whilst the button is pressed. The two screens that are available are selected by alternate presses of the S button. Most buttons need to be pressed for about a quarter of a second to register them. The screen announces 'tot' or 'trip' as an indication of which screen has been selected. Also the 'trip' screen's decimal point flashes whereas the 'total' decimal point is permanent. The viewing area of each (which digits) is moved about with the M button, and can be different for each screen. The value of these digits can be edited by using the H button to select appropriate digits and the M button to amend them. Pressing the H button until all digits have been selected will quit the digit edit mode. The Z button zeros the screen currently being viewed. The R button reverses the direction of count and the words UP and Dn will follow operation of this button as a reminder of the direction selected.

Wiring  
Connections must be of a very high standard as any loose contacts will prevent accuracy. The black cable coming from the base of the Brantz is wired Brown to +12 volts (which is NOT ignition controlled) and the Green/Yellow goes to -12 volts (normally ground). Use a 2amp fuse. The GREY cable goes to the sensor only, and is wired as directed in the sensor section of the instructions (the universal speedometer cable sensor connects Blue to Blue, Brown to Brown, and Green to Green (/yellow). Incorrect wiring will cause damage. Remember; crimp connections were designed primarily to cause havoc, and occasionally to conduct electricity. Choose screw type terminals or even better, solder them. Meters carry a 12 month warranty which can be extended indefinitely.

 

 



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