Principles Of Operation - Barnstead SUPER-NUOVA HP133420-33 Operation Manual And Parts List

Principles of Operation

Note
This plate does not cool. The mini-
mum temperature is 1°C if used in a
cold room at 1°C.
12
Each SUPER-NUOVA unit utilizes the latest microproces-
sor technology to deliver the most reliable, accurately
controlled, aluminum top digital plate on the market.
Your SUPER-NUOVA plate has an electronic, closed-loop
feedback control which will accurately maintain tempera-
ture setpoints from 1°C through 300°C.
The SUPER-NUOVA units use a Type K thermocouple for
measuring the top plate temperature, OTP and the exter-
nal probe. Both top plate surface and OTP temperature
are measured with independent analog circuits. This pro-
vides a significant increase in safety due to the redundan-
cy of the circuits. It is possible to heat certain types of
metal vessels and sandbaths on the SUPER-NUOVA
without damaging the aluminum top.
The electronic stirring speed control will maintain the
speed setpoint when the unit is loaded. The motor is com-
bined with a powerful magnet to provide exceptional mag-
netic coupling with a stir bar.
The timer feature on the SUPER-NUOVA can be pro-
grammed to turn off the stirring, heating or both. The
default setting is to turn off heating only. See "Setting the
Timer" section of this manual. To change default setting,
see "Service and Calibration/Timer Shutdown".