iv) Switch the Record/Play switch to the 'Play' mode. 



v) Adjust the LMA Zero Potentiometer to give the 

 zero reference established in iii) or to show 

 zero on the LMA Meter. 



vi) Adjust the LMA Gain as per the graph in Fig. 4.8. 

 Re-adjust the zero and gain if necessary. 



vii) Select either 'Static' or 'Dynamic' on the 



Dynamic/static switch depending on the rope speed 

 anticipated. If the 'static' mode of operation 

 is chosen adjust the LF Zero potentiometer to give 

 the zero reference chosen in iii) or to show the 

 centre of the scale on the LF meter. Adjust the 

 LF gain as per the discussion in section 4.5.1. 



viii) Set the position on the Rope Direction Switch to 

 correspond to the rope direction (with the switch 

 in the up position a rope moving from the top of 

 the sensor head toward the wheels will cause the 

 measured length counter to count up.) 



ix) Set the Metric/English switch to the desired 

 position, the Calibrated Offset to and the 

 Compression Band Switch to the desired amount of 

 compression (see section 4.5.3 for further explan- 

 ation of the use of this setting) . 



x) If a tape recording is to be made load a cassette 

 into the tape transport. Press the red Record 

 Button and the Tape Run button and allow the tape 

 to advance passed the leader. 



xi) Zero the Measured Length and the Tape Counter 

 displays . 



xii) Start the rope. 



A-28 



