p-T-Sensor0 pages

Pressure
p-T-Sensor t
Type 6188AA...
for Mold Cavity Pressure and Temperature with Front ø1 mm
Sensor for combined measuring of mold cavity pressure up to
2 000 bar and contact temperature in the cavity is designed
for injection molding of plastics. Design without diaphragm
but with flat front.
•t Pressure sensor with integrated thermocouple for pressure
and temperature measurement
•t Mounting dimensions compatible with Kistler pressure
sensor Type 6183A...
•t Sensor cable replaceable by Kistler factory
Description
The Sensor for mold cavity pressure and temperature has a
front diameter of 1 mm.
The pressure acts over the entire front of the sensor and is
transmitted to the crystal measuring element, which produces a proportional electric charge (pC = Picocoloumb). This is
c
­ onverted into a voltage 0 ... 10 V in the amplifier and is then
available as an amplifier output.
The contact temperature of the melt is measured on the front
of the sensor by one pair of thermocouples, type K (NiCr-Ni).
The sensor front can not be machined. The small sensor dimensions result in a short response time of the temperature
sensor. The rugged combi-cable feeds the pressure signal as
well as the temperature signal to two connectors.
6188AA_000-887e-01.11
Sensors without connectors Type 6188AAG are available for
multi-cavity molds. The charge cable can then be connected
to the multi-channel connector Type 1708A… or 1710A... and
the two temperature conductors to the temperature amplifier
Type 2205A… .
Application
Suggested applications are complex and compact injection
molds in the field of medical, electrical and precision molding industries. The sensor measures the mold cavity pressure and the
contact temperature of the molding in the cavity. It is suitable in
industrial applications for optimising monitoring and controlling
the injection molding of thermoplastics and elastomers. The
additional temperature data provides valuable process information. This is particularly useful in the analysis of part dimensions, as well as in the evaluation of knit lines in components.
Technical Data
Ranget
bart
Overloadt
bart
Sensitivityt
pC/bart
Linearity, all rangest
%FSOt
Thermocouple, Type Ktt
Operating temperature range
t Mold (Sensor, cable,
t connector box)t
°Ct
t Melt (at the front of the sensor)t
°Ct
Insulation resistance
t at 20 °Ct
TΩt
t at 200 °Ct
TΩt
0 ... 2 000
2 500
≈–4,8
≤±1
NiCr-Ni
*0 ... 200
<450
100
1
* t uring machine down-time, the mold temperature may be allowed
D
to rise to 240 °C without damaging the sensor. However, measuring
errors may occur.
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This information corresponds to the current state of knowledge. Kistler reserves
the right to make technical changes. Liability for consequential damage resulting
from the use of Kistler products is excluded.
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Tel. +41 52 224 11 11, Fax +41 52 224 14 14, info@kistler.com, www.kistler.com
Kistler is a registered trademark of Kistler Holding AG.