1-18 HITs – Wide Temperatu re Range
Model 1230 UltraStable
PC Board Mountable Pressure Sensor
0-100 mV Output
Absolute, Differential, and Gage
Wide Temperature Range
Medical Instrumentation
Calibration
Process Control
Factory Automation
Air Flow Management
Leak Detection
FEATURES
-20°C to +85°C Compensated
Temperature Range
±0.1% Non-linearity
±0.5% Temperature Performance
1.0% Interchangeable Span
(provided by gain set resistor)
Solid State Reliability
Low Power
STANDARD RANGES
Range psig psid psia
0 to 15 ●●●
0 to 30 ●●●
0 to 50 ●●●
0 to 100 ●●●
DESCRIPTION
The Model 1230 i s a high performance temperature
compensated, piezoresistive silicon pre ssure sensor packaged in
a dual-in-li ne configurati on. It is intended for cost sensitive
applications w h ere exc el lent performance and lo n g-te rm
stability are required.
Integ ral temperat ure compens ation is pr ovided over a range
of -20°C to + 85°C using laser-trimmed thick film re sistor s . An
additional laser-trimmed resistor is i ncluded to normalize
pr es sur e se nsitivity variations, for interchangeability of ±1%, by
programming the gain of an exte rna l differential amplifier.
Differentia l and gage pre ssur e ranges fr om 0-15 PSI to
0-100 PSI are available. Absolute pres sure ra nges of 0-15 PSIA
to 0 - 30 PS IA are available. M u l t iple le ad an d t ube
configurations are available for different applicati ons.
Please refer to the low pressure section for information on
products with oper ating pressures less than 0-2 PSI. For a
co m p ensated sen sor usin g a c u rrent set resisto r as op p o s ed to a
gain set r es istor, please r efer to the Model 1240.
DIMENSIONS
PC Board Mountable Pressure Sensor Model 1230 UltraStable
HITs – Wide Temperature Range
June 2001
PERFORMANCE SPECIFICATIONS
Supply Current: 1.5mA
Ambient Temperature: 25 °C (Unless other wise specified)
Notes
1. Output span of unamplified sensor.
2. Best Fit Straight Line.
3. For Model 1230, compensation resistors are an integral part of the
sensor package; no additional external resistors are required. Pins 7 and
8 must be kept open.
4. Temperature range: -20°C to +85°C in reference to 25°C.
5. Guarantees input/output ratiometricity.
6. For a zero-to-full scale pressure step change.
7. 10 Hz to 1kHz.
8. Prevents increase of TC–Span due to output loading.
9. 3X or 200 psi maximum, whichever is less. 20 psi for 2 psi and 5 psi
versions.
10. Wetted materials are glass, ceramic, silicon, RTV, nickel, gold, and aluminum.
11. Soldering of lead pins: 250°C for 5 seconds, maximum.
12. Tube length: L=470 ± 5 mil, S=300 ± 3 mil, N=no tube.
13. Lead pins can either be in the same or the opposite direction as the
pressure tube. See Connections/Dimensions drawing for lead
configurations.
14. Normalized offset bridge voltage: 7 days.
15. 1 year.
CONNECTIONS ORDERING INFORMATION
APPLICATION SCHEMATIC
PARAMETERS MIN TYP MAX UNITS NOTES
Full Scale Output Span 75 100 150 mV 1
Zero Pressure Output 2±mV3
Pressure Non-linearity 0.05 0.1 ±% Span 2
Pressure Hysteresis 0.01 0.1 ±% Span
Input Resistance 2500 3500 4500 Ω
Temperature Error – Span 0.3 0.5 ±% Span 3, 4
Temperature Error – Zero 0.1 0.5 ±% Span 3, 4
Temperature Coefficient - Resistance 0.145 %/°C 4
Thermal Hysteresis – Zero 0.05 ±% Span 4
Short Term Stability of Offset 0.05 ±% Span 14
Short Term Stability of Span 0.05 ±% Span 14
Long Term Stability of Offset 0.1 ±% Span 15
Long Term Stability of span 0.1 ±% Span 15
Supply Current 0.5 1.5 2.0 mA 5
Response Time (10% to 90%) 1.0 msec 6
Output Noise 1.0 µV p-p 7
Output Load Resistance 5 MΩ8
Insulation Resistance (50 VDC) 50 MΩ
Pressure Overload 3X Rated 9
Operating Temperature –40°C to +125°C
Storage Temperature –50°C to +150°C
Media Non-corrosive Gases Compatible with Wetted Materials 10
Weight 3 Grams
1230 - 015 G - 3 S
Pressure Tubes (L, S, N - see note 12)
Lead Configuration (1, 3 - see note 13)
Type (G = Gage, A = Absolute, D = Differential)
Model
RangePressure
LEADER Electronic Co., Ltd - 116, Jianghuali, Jianghua Road, Jiangmen City, GD, PRC
Tel: + 86 750 3101711, 3379183 Fax: + 86 750 3388669 Website: www.leadersensors.com - e-mail: leader@leadersensors.com
