1) It applies 32-bit ARM single chip microcomputer and the
high-speed signal processing chip of TI for detection and
controlling, with a high integration degree. It is adopted with
mechanical-electrical integration design, with high accuracy, good
repeatability and sound reliability.
2) It is equipped with a large LCD in Chinese and rotating mouse
(DIP SWITCH) human-machine interface, with easy operation,
aesthetic appearance, clear parameters and status display.
3) It can realize automatic switch between pressure measurement and
values under 20℃, so as to realize dynamic and automatic
compensation between pressure and temperature. It can also display
the pressure under the test ambient temperature and that under 20℃
as well as the environment temperature. In this way, the field
calibration problem of SF6 gas density relay is solved thoroughly.
4) The whole testing is completed by apparatus automatically
without manual intervention, avoiding the fussy manual gas path
adjustment.
5) The testing results can be printed in the form of Chinese
statement, with intelligent analysis.
6) It can store the testing results for 50 times simultaneously,
and functions power failure safeguard. The former testing results
could be inquired and printed at any time.
7) The calibration of SF6 gas density relay and pressure gauge
could be conducted under any temperature, without thermostatic
chamber.
8) It is provided with various types of transition joints, capable
to conduct field calibration of most types of gas density relay
without removing the relays.
9) It has low gas consumption during calibration, saving SF6 gas
and testing cost, without environment pollution.
10) It functions online system clock modification.
11) It functions online system pressure modification, as well as
field calibration.
12) Imported components are used as the core ones, reliable in
performance.
13) It can test one set of alarm signal and two sets of blocking
signal.
14) Portable and reliable, it is the selected choice for SF6
density relay calibration.
