SPT28 Digital Pressure Gauge
Features
• Large-screen LCD display, high resolution
• Peak hold function, record the maximum pressure during
measurement
• Pressure percentage dynamic display, (progress bar display)
• Five engineering units to choose: psi, bar, kpa, kg /c㎡ Mpa
• Choose 1 ~ 15min automatic shutdown function.
• Lower power consumption, work in power-saving mode for more than
2 years, working continuously for 2000 hours.
• Parameter correction function, on-site instrument zero, error
correction.
• Range up and down limit
• Sampling rate: 4 times / second
• Suitable for pressure measurement of various gas liquids
compatible with stainless steel
Introduction
SPT28 series of digital pressure gauge for the whole electronic
structure, battery-powered, on-site installation is simple. It uses
high precision piezoresistive pressure sensor, low temperature
drift amplifier amplification processing, and high-precision A / D
converter. After signal is converted into digital signal, The LCD
display shows the actual pressure value.
The intelligent digital pressure gauge is very flexible, easy to
operate, battery supply, safe and reliable. Widely used in
hydropower, water, petroleum, chemical, mechanical, hydraulic and
other industries which need pressure local display .
Specifications
| Range | -0.1~0~100MPa |
| Overpressure | 2FS |
| Pressure Type | Gauge |
| Accuracy | 0.50% |
| Battery Voltage | 9V DC |
| Displayer | LCD |
| Long-term Stability | ±0.1%FS/year |
| Operation Temperature | -20℃~75℃ |
| Storage Temperature | -20℃~80℃ |
| Relative Humidity | ≤80% |
| Interface Material | stainless steel |
| Media Compatibility | liquid or gas compatible with stainless steel |
| Display range | -1999~9999 |
Outline Construction
Installation
The SPT28 can be mounted directly on the hydraulic line via a
pressure fitting (M20 * 1.5) (other sizes available on order). In
critical applications such as severe vibrations or shocks, pressure
fittings can be mechanically decoupled via miniature hoses.
NOTE: Vertical installation must be carried out when the range is less
than 100 kPa.
Operating Instructions:
1. Measurement status:
• On, off: short press "ON / OFF" button
• unit switch: long press "ON / OFF"
• Peak Clear: Short press "ZERO" key
• Clear display: press "ZERO" key(Note: This function is only used
under no pressure)
2. Setting Status:
• "ZERO" key: short press to modify the current flashing digit
value or down menu, long press to move the flashing digit position
• "ON / OFF" key: Short press to change the current parameter value
(the highest digit blinks) or confirm the current modification
parameter value (the value stops blinking)
3. Parameter setting:
• "Locd": password input menu, enter the password "1000"
• "offt": automatic shutdown time menu, set the range of "00 ~ 15"
minutes, "00" for continuous work
• "bclt": backlight open time menu, setting range "00 ~ 15"
minutes, "00" to turn off the backlight
• "End-": exit the menu, set the value "0 ~ 1" "0" to exit without
saving the setting parameters, "1" to exit the setting parameters
4. Setting method:
1. Press "ZERO" and "ON / OFF" at the same time, and when "LOCK" is
displayed on the secondary screen, input "1000" and press "ON /
OFF" to confirm, enter parameter setting status
2. Short press "ZERO" to select the menu to be modified
3. Press the "ON / OFF" key briefly to allow modification of the
parameters
4. Short press the "ON / OFF" button to confirm the change
5. Short press "ZERO" to select "End-" menu
Notes
1. Please pay attention to protect sensor diaphragm to avoid
damaging the sensor or affecting the performance.
2. Please make sure the measured media shall be compatible with the
contacting material.
3. If users have special requirement, please contact us freely.
