High Accuracy Stainless Steel Power supply digital display Pressure
gauge
Description
This is an intelligent digital displayed product for pressure test
and control. It has a complete electronic structure. Oil-filled
piezo-restive pressure sensor with diaphragm is applied in the
front part. The processed signals control two switches then to test
& control the pressure. With flexible application, easy debugging
and high reliability, this product is widely used applied to test &
control the pressure of fluid medium in many industries including
areas of hydroelectricity, city water, oil, chemical, machinery
hydraulic system etc.
Parameter
| Pressure range | -0.1~0~100MPa | Accuracy | 0.5%F.S. |
| Over load | 200% | Pressure type | Gauge |
| Liability | ≤0.1% /year | Power | 24VDC or 220VAC |
| Display | 0.56" LED | Display range | -1999~9999 |
Response time |
<30ms | Ambient temperature | -20℃~70℃ |
| Relative humidity | ≤80% | Wetted part | SS304 |
Installation
1.Mechanical connection
It can be directly mounted in the hydraulic pipe by the connecting
thread. In critical application, such as server vibration or shock,
soft hose is recommended to use.
2.Electrical connection
To avoid electromagnetic interference, please know
a.the cable system should be as short as possible
b.To use shielded wire
c.To keep way from any interference resources, for example,
electric appliances and devices, if installed by soft hose, its
body should be grounded independently.
Setting
AL1H: Switch connection point for switch 1(when pressure reaches this
value, indicator on) AL1F: Switch connection point for switch 1(when pressure reaches this
value, indicator off) AL2H: Switch connection point for switch 2(when pressure reaches this
value, indicator on) AL2F: Switch connection point for switch 2(when pressure reaches this
value, indicator off)
FILT: Filter coefficient. To avoid digit display from fluctuating which
is caused by pressure change, after 3-10seconds, it can be set END
then save then exit. The bigger the filter coefficient is, the more
stable it is, but the more hysteric.
Note:
Switching points are determined by the configuration of the present
connection and disconnection value.
When connection value is higher than disconnection value, it is
called upper-limit alarm output (normally open status);
When connection value is lower than disconnection value, it is
called lower-limit alarm output (normally close status);
The deviation between connection and disconnection value is the
return difference for the switch point.
Example (How to finish the settings as following)
- Set switch point 1 at upper-limit alarm output(normally open
status),connect at 4Mpa and disconnection when lower than
3.95Mpa,response delay is 3 seconds
- Set switch point 2 at lower-limit alarm output(normally close
status),connect at 10Mpa and disconnection when lower than
9.95Mpa,response delay is 10 seconds
Enter the menu: Set AL1H=4.00 AL1F=3.95 AL2H=9.95 AL2F=10.00
- Press “SET”
- “LOCK” sign(remind you to key in password,0001)
- Press ▲ or ▼ to key in the password
- Press “SET” to confirm
- Press ▲ or ▼as page up or page down to select (AL1H, AL1F, AL2H,
AL2F, END)
- Press “SET” to enter selection menu
- Press ▲or ▼ to alter the settings
- Press “SET” to confirm, or press ▲or▼to enter other menus for other
settings
Workshop
