The period has shown an increase in activity, mostly in the use of hardcopy and microfiche. The 1906A spool is being well used. The 360/195 spool is now working and there are signs that work is building up. The number of users who have made use of the facilities is over 130.
III released Version 3 at the beginning of August. The initial copy was sent on a 9-track 800 bpi tape, which cannot be read, Some of the features included in the new version are:
Atlas modification have been quite extensive, The ones that affect operations are:
Automatic logging program has been developed. All DISPLAYER jobs write accounting details to a disc file, this file is dumped to tape and processed on the 1906A. Print programs and simulator jobs have to be manually entered. At present the system is run in parallel with the manual logging, it is hoped to change completely in the New Year. One consequence of the logging system is a 10 second overhead for each job, and also a more accurate time of jobs - seconds rather than minutes.
There have been no major faults during the quarter, although time has been lost due to minor faults.
During the August shutdown a modification was made to improve image stability. This has proved to be successful. Image sizes had to be re-established.
Some trouble was experienced with intermittent frame advancing and in some incidents frame rewinding. A noisy component was changed, but design of the hardware means a rewind is possible if certain conditions prevail.
Drive belts have broken on a.= number of occasions. Rumour has it that OEM (manufacturers of hardcopy camera) have now modified new hardcopy units to have a double sprocked drive-belt modification to our camera are being investigated.
A number of occasions have occurred whereby the film does not feed into the supply cassette correctly, although it has proved impossible to recreate on demand.
Only one incident of note involved this camera, the cause is not known Film from the camera was continually out of focus. To rectify the situation the lens had to be repositioned manually.
Faults still occur although the number has gone down, this is mainly due to 360 jobs now using 9-track, Other faults include a dry joint on 9-track, servo fault on 7-track and EOT lamps blowing on both 7 and 9-track together.
There have been no faults with the monitor during the quarter. The request for a replacement monitor has still not been met.
The solid state relay, which controls the selection of lines for microfiche or hardcopy and switches on the vacuum system, went unserviceable. No replacement was held on site. A small modification allowed the two functions to be switched separately, although the switches were located in different places. The replacement unit arrived after a month.
The tables show the following:
TABLE 1 1906A SPOOL USAGE AUGUST SEPTEMBER OCTOBER WORKING DAYS 16 22 23 TOTAL NUMBER OF JOBS 404 498 680 NUMBER PLOTTED 383 477 657 NUMBER ERASED 21 21 23 JOBS BY CAMERA HARDCOPY 248 299 418 COLOUR 35mm 34 30 10 B&W 35mm 41 56 118 COLOUR 16mm 15 16 7 B&W 16mm 11 7 8 PRECISION 16mm 29 67 42 MICROFICHE 5 2 46 DESPOOLING NUMBER OF TIMES 134 180 181 MAXIMUM NUMBER PER TAPE 13 14 15 AVERAGE PER TAPE 3.0 2.7 3.7
TABLE 2 1906A SPOOL USAGE BY 3-HOURLY PERIOD TIME AUGUST SEPTEMBER OCTOBER 0000-0300 11 19 40 0300-0600 11 9 29 0600-0900 23 37 60 0900-1200 86 80 128 1200-1500 92 113 101 150O- 1800 108 124 135 1800-2100 56 80 112 2100-2400 17 46 75
TABLE 3 NUMBER OF USERS 1906A Total number of users 103 Number using HARDCOPY 70 CL16 11 BW16 13 CL35 14 BW35 23 PR16 28 MFCH 50 360/195 Total number of users 31 Number using HARDCOPY 26 CL16 0 BW16 3 CL35 1 BW35 5 PR16 2 MFCH 7
TABLE 4 FRAME AND TIME USAGE BY CAMERA August No of Jobs Time Subframes Frames Hrs Min Sec HARDCOPY. Single 151 3.09 1786 Many-up 158 3.28 2966 952 35mm Monochrome 43 0.45 484 Colour 42 4.10 1152 16mm Monochrome 29 0.50 9573 Colour 18 6.09 13903 Precision 23 3.53 11053 Microfiche 133 1.09 66 September No of Jobs Time Subframes Frames Hrs Min Sec HARDCOPY. Single 255 6.28.49 3108 Many-up 164 3.13. 5 4833 1430 35mm Monochrome 67 1. 7.42 937 Colour 42 1.10.54 512 16mm Monochrome 11 0.39.56 5693 Colour 20 11.51.15 19028 Precision 82 7.08.53 44657 Microfiche 133 9.40.32 517 October No of Jobs Time Subframes Frames Hrs Min Sec HARDCOPY. Single 423 9.26.46 4794 Many-up 132 1.42.46 2573 769 35mm Monochrome 158 2.20.55 1846 Colour 29 4.29.40 1052 16mm Monochrome 17 1.02.52 7840 Colour 8 5.23.41 9447 Precision 118 14.32.35 97062 Microfiche 319 13.56.46 517
TABLE 5 1906A Fiche MONTH AUGUST SEPTEMBER OCTOBER No of files 58 92 167 Total no of lines 219500 469000 750000 Average per file 3730 5000 4490 OTHER No of fiche 60 200 50 lines 500000 2000000 440000