Whenever considering a retrofit there are some key parameters:
If the machine was manufactured from approx. 1960 onwards,
as a rule retrofit is possible. However, there are older machines
which can still be retrofitted without a problem. This includes
the older ‘dial’ type machines.
The very first step before discussion is to obtain the machine
serial number, which is typically located on the back of the
indicating system itself. This is the ‘key’ to
locating our records and without this it will not be possible
to progress the request. Using
this number, contact Tinius Olsen and we will check our records
as to the possible retrofit options.
When
any retrofit is being considered it is vitally important to
take as many photos of the internals, etc, of the machine and
pumping system as some parts may have been modified by others
and therefore it is vital to enable the factory to see what
is being considered etc.
Some older machines cannot now be used in accordance with ASTM
E4 (later than 2001 versions) throughout zero to maximum load
– see following page for an idea of lowest permissible
range of Tinius machines.
Note:
All machines from all manufacturers must now have a resolution
of one part in 200 – which in basic terms means that the
lowest calibrated load of any machine in any range is 200 times
the resolution.
|
What you are reading
from: |
Lowest
calibrated load reading: |
| 602 display,
398 display, 290 display |
0.2% of machines capacity |
| S/T series Bench Machine |
1% of loadcell capacity |
| M series Bench Machine |
200 times lowest resolution of the
display in range used |
| Pre 290 digital display, Jonsey Digital |
200 times lowest resolution of the
display in range used |
| 28 inch dial – TO machine |
10% of the range |
| 17 inch dial – TO machine |
20% of the range |
| Bristol, AD, MM chart recorder |
20% of the range |
| Model 51, and small X-Y recorder (Bench) |
|
| 100 division paper |
40% of the range |
| 120 division paper |
33.3% of the range |
