2
II.Scope of application
：
This product is manufactured in accordance with SH/T0304 ASTM D1275 electrical
insulating oil corrosive sulfur test method and is suitable for the determination of corrosive
sulfur in electrical insulating oil extracted from petroleum.
III.Technical index
：
Model number
HZ2831
Power supply
voltage
AC220V 50Hz
Temperature
control range
RT+10
～
250
℃（
The lowest control temperature
is 50
℃）
Constant
temperature
fluctuation
±1
℃
Temperature
resolution
0.1
℃
Rated power
1220W
Test unit
Double stent
Liner size (mm)
425×400×345
Dimensions (mm)
705×580×530
IV.Structure overview:
1. This instrument adopts imported digital display PID program temperature control, and
adopts special non-overshoot PID algorithm and PID self-tuning technology to ensure that
the instrument does not overshoot or undershoot, and the temperature control accuracy
can reach ±0.5
℃
.
2. The temperature measurement is carried out by Pt100 sensor. The sensor is sensitive,
reliable in work, and can quickly and timely reflect temperature changes. Through the
control of the digital display PID thermostat, it can fully guarantee the temperature control
accuracy required by the standard.
3. The appearance of this instrument adopts an integral frame structure with large internal
space. The shell is made of high-quality cold-rolled steel plate, and the surface is treated
by spraying process, with a novel and beautiful appearance.