Gems Sensors Pressure Transmitter Transducer
Barometric Pressure Transducers
Quick Specs...
- Instant Warm-Up
- Barometric Pressure: 600 to 1100 or 800 to 1100 hPa/mb
- Low Power Consumption (for Battery or Solar Power)
Overview / Design Principle:
The 876 Series features an extremely accurate and stable ceramic sensor to deliver a great value in environmental pressure measurement. GEMS' glass-fused ceramic capacitive sensing capsule offers inherent thermal stability and low hysteresis in a proven, simple design. A custom ASIC used in the 876 Series achieves long-term stability and high accuracy, and its low power requirements (as low as 5 Vdc) allow the sensor to operate in remote battery or solar powered applications. An integrated mounting bracket and 1/8" tube pressure connection ease installation.
How they Operate:
A glass-fused ceramic sensing capsule detects changes in barometric pressure. As pressure increases or decreases, the capacitance changes. This change in capacitance is detected and converted to a linear analog signal by Gems Sensors & Controls' custom ASIC- based circuit, producing an output signal proportional to applied pressure.
Applications:
-
Environmental Monitoring Systems
-
Weather Measurement Systems
-
Weather and Environmental Data Logging
-
Barometric Pressure Compensation for Internal Combustion Engine Performance
-
Cleanroom Barometric Pressure Compensation
-
Automotive Emissions Test Equipment
| Specifications |
| Input |
|
Pressure Range
|
See Ordering Chart
|
|
Proof Pressure
|
20 psia (30 psia for 20 psia range)
|
|
Fatigue Life
|
>1 million cycles
|
| Performance |
|
Long Term Drift
|
0.25% FS/6 months
|
|
Accuracy
|
±0.25% FS
|
|
Thermal Error Zero
|
1% FS
|
|
Thermal Error Span
|
1% FS
|
|
Compensated Temperature
|
30°F to +130°F (0°C to +55°C)
|
|
Operating Temperatures
|
0°F to +175°F (-18°C to +79°C)
|
|
Storage Temperatures
|
-65°F to +250°F (-55°C to +121°C)
|
|
Zero Tolerance
|
±25 mV
|
|
Span Tolerance
|
±50 mV
|
| Mechanical Configuration |
|
Pressure Port
|
1/8" Tube Fitting
|
|
Wetted Parts
|
Stainless Steel, Alumina Ceramics, Gold, Elastomer
|
|
Electrical Connection
|
2 ft. Multiconductor Cable
|
|
Enclosure
|
Stainless Steel with Mounting Bracket
|
|
Vibration
|
2g from 5 Hz to 400 Hz
|
|
Acceleration
|
10g
|
|
Shock
|
50g (operating, 1/2 sine 10mg)
|
|
Approvals
|
CE
|
|
Weight
|
3.5 oz
|
| Supply Voltage: 9.0 - 14.5 Vdc |
|
Excitation
|
12 Vdc
|
|
Output
|
0.1-5.1 Vdc
|
| Supply Voltage: 21.6 - 26.0 Vdc |
|
Excitation
|
24 Vdc
|
|
Output
|
0.1-5.1 Vdc
|
| Supply Voltage: 4.9 - 7.1 Vdc |
|
Excitation
|
5 Vdc
|
|
Output
|
0.5-4.5 Vdc
|
 |
| |
in/mm |
| A |
2.25/57.1 |
| B |
1.17/29.7 |
| C |
1.13/28.6 |
| D |
0.50/12.7 |
| |
|
|
 |
| |
in/mm |
| A |
1.75/44.4 |
| B |
1.07/27.2 |
| C |
0.25/6.4 |
| D |
0.19±0.10/4.9±0.25 |
| |
|
|
 |
| |
in/mm |
| A |
2.08/52.9 DIA. |
| B |
0.65/16.5 |
| C |
2ft/0.6m Cable |
| D |
1/8" O.D. Plastic Push-on Tube Fitting |
| E |
0.67/17.1 |
| F |
0.87/22.0 |
| G |
1.65/41.9 |
| |
|
|