.12.
7 Simple Fault Repair
Example : PS4812D / 2 / 3
The Intelligent Pressure Indicator with 3.33mV / V input pressure transducer.
With a programmable output function and relay alarm function.
8 Model Format
6
Measure working state
6.1
Measure working state
6.2
drift - clear operation:
Measure working state
ChengDu SAND Electronic Co., Ltd. Http://www.sandcop.com E-mail:[email protected]
PV window display the pressure measurement value, On the right correspond pres sure
units light long Leung. SV window shows the first alarm pressure value. Nor mal m
on the left alarm and calibration light is off, when the test pressur value is
lower or higher than the alarm pressure value, the AL2 or AL1 alarm lights turn on; wh en
the test pressure value is to restore Normal, the AL2 or AL1 alarm lights turn off.
easure
working state
First automatic calibration operation (section 5.1 on page 10). After time, if there are
temperature drift or time shift, you can hold down the key at the same time click
key to clear the current drift value. if clear wrong , you can hold down the key
and key, more than 5 seconds to restore zero.
SEL
SEL
SEL
SEL
Without any display, check whether the correct 220VAC connected, if not , check th e
switching power whether has output .
If the user connection error caused major fault. Please contact me to replace parts for
you , such as the power supply board, AD / DA board, display board.
PV window display "88.88" or "- - .- -". Because the pressure transducer and
w r o n g c o n n e c t i o n o r p o o r c o n t a c t . a s l o n g a s t h e c o n n e c t i o n a c c e s s c a n t r o u b l e
clearing.
PV window display the pressure value jump word: usually because of interference,
and ground is poor contact with the earth, as long as the shield can be c onnect ed
and with the earth.
indicator
PS4812 / 1
2
3
/
/
4
/
D
4: 485 communication with computer (optional)
3: With relay alarm
2: Programmable output signal function (optional)
1: Only display, without the output signal (optional)
D: 3.33mV/V
input (optional)
The default is 2.0mV/V
input
pressure transducer
pressure transducer
