LCR7000 & RHEOSIGHTS P/N: 974194 |
Rev: A
|
ECO: 52468
www.dynisco.com
From lab to production,
providing a window into the process
-15-
the symbol, broken thermometers and their spilled mercury can be sent back to the
manufacturer. UPS will accept these packages provided they are labeled and the material is
in a secure container. See Princo support vendor for address information.
When the rheometer is in operation the crosshead (which holds the load cell and load cap)
moves downward creating an area where anything lying on the swing arm could
potentially get crushed. When the
RUN
button is pressed the FULL FORCE of the
rheometer can be brought to bear. When the down button (
) is pressed on the
rheometer a 2 to 3 LB safety load limit on the plunger will stop the movement of the
crosshead / plunger (this is true for models with Load Cell only). Any item between the
cross head and the lower swing arm which does not affect the load reading will not be
"seen" by the rheometer and will be crushed! The down button (
) should be used for
routinely moving the crosshead down to do force calibrations or to check motor operation.
The operator should be sure the area between the crosshead and the rheometer swing arm
is clear prior to any rheometer movement. The large red
EMERGENCY STOP
button, when
pressed, will stop any rheometer movement and allow the pulley system to be rotated by
hand (if needed). The
EMERGENCY STOP
button is like a clutch on a car. When engaged it
disconnects the motor from the driving mechanism when released it re-engages any
current commands. To have the crosshead return to the Park Position, power the
rheometer down and then power it back up after about 1 second (confirm the emergency
stop button is pulled out). Once powered up, the crosshead will return to the Park Position.
An optional front guard with power interlocks can be provided. This shield is tied to a
mechanism, which prevents operation of the rheometer, until the shield is in place. The
shield inhibits access to the area between the crosshead and the swing arm.
Plan for the unexpected when it comes to materials giving off hazardous vapors. Many
polymers (PVC, fluoropolymers, etc.) are well known for giving off hazardous fumes at
elevated temperatures. An exhaust system that removes fumes from both the die exit and
the top of the barrel is strongly recommended. Consideration should also be given to
additives that may degrade or decompose at elevated test temperatures.
4.
Pinch Points
5.
Fumes from Materials
