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Model 245: DigiComp Pressure Sensor
The Model 245 DigiComp pressure sensor from Viatran is one of the company’s most precise pressure transmitters developed for industrial test and research applications.
The 245 DigiComp pressure sensor quantifies gage and absolute pressure from 3 to 5,000 PSI, or 0.2 to 345 bar, with a standard precision of ≤±0.06% FSO.
Features
|
All stainless-steel construction |
|
High precision |
 |
Suitable for low pressure applications |
 |
Shunt calibration circuit option |
 |
Several options are available |
External adjustments in the Model 245 DigiComp pressure sensor enable users to further tune the zero reading with the help of a potentiometer. The pressure sensor also includes adjustments for span, and an embedded calibration circuit enables calibration on the field.
The Model 245 DigiComp pressure sensor can be custom-made for outputs anywhere from −10 to +10 VDC, with unlimited electrical and process connection options.
Performance
Table 1. Source: Viatran
| . | . |
|---|---|
| Full Scale Pressure Ranges | 0-3 thru 5000 PSIG (PSIS FOR >500 PSI) (0.2 thru 345 bar)0-15 thru 0-5000 PSIA (0-1.0 thru 0-345 bar)0-15 PSIV (0-1.03 BarV) |
| Nonlinearity (Best Fit Straight Line) | ≤±0.06% FSO |
| Hysteresis & Repeatability | ≤±0.06% FSO |
| Full Scale Output (FSO) | 5 Vdc at 70°F (21°C) ≤±0.10% FSO standard |
| Resolution | Infinite |
| Long Term Stability | ≤±0.3% FSO per 6 months |
| Compensated Temperature Range | 32°F to 170°F (0° to 77°C) |
| Process Media Temperature Range | -40°F to 250°F (-40°C to 121°C) |
| Ambient Operating Temperature Range | -40°F to 185°F (-40°C to 85°C) |
| Storage Temperature Limits | -40°F to 250°F (-40°C to 121°C) |
| Temperature Effect on Zero | ≤±1.0% FSO per 100°F |
| Temperature Effect on Span | ≤±1.0% FSO per 100°F |
Electrical
Table 2. Source: Viatran
| . | . | . |
|---|---|---|
| Supply Voltage | 8 to 30 Vdc at 3.5 mA nominal, 5 mA max(12 to 30 Vdc for 10 Vdc output option) | |
| Power SupplyRegulation | ≤±0.01% FSO per volt change over the supply voltage range | |
| Output Signal | 0 - 5 Vdc standard (see options) | |
| Load Resistance | 100K Ohms min | |
| Zero Adjustment | ±5% FSO min | |
| Span Adjustment | ±5% FSO min | |
| Calibration Signal | 80% of FSPR, by shorting calibration pins | |
| Calibration Signal Accuracy | ≤±0.1% of the stated value | |
| Circuit Protection | Input polarity may be reversed. Output may be short-circuited indefinitely | Over voltage protection to 1000 volts according to EN61000-4-5 |
| Insulation Resistance | ≥200 MegOhms to case ground | |
| Response Time | <2 mSec to reach 90% of full scale | |
| RFI / EMI Suppression | CE EMC compliant per IEC EN 61326. CE marked | |
| Electrical Connection | Bendix PT02E-10-6P, mates PT06E-10-6S (SR) | |
| Pin Outs | Pin A | + Power |
| Pin B | - Power | |
| Pin C | + Signal | |
| Pin D | - Signal | |
| Pin E | Calibrate | |
| Pin F | Calibrate |
Materials of Construction
Table 3. Source: Viatran
| . | . |
|---|---|
| Wetted Parts | 316 stainless steel |
| Housing | 304 SS with an Aluminum alloy, black zinc-cobalt plated electrical connector |
| Weight | 10 oz (283 g) |
| Identification | Laser etched onto body |
Mechanical
Table 4. Source: Viatran
| . | . | . |
|---|---|---|
| Pressure Connection | 1/4" - 18 NPT female | |
| Proof Pressure | ≤500 PSI (35 bar)>500 PSI (35 bar) | 3 times range or 1,200 PSI (80 bar) max3 times range or 10,000 PSI (700 bar) max |
| Burst Pressure | ≤500 PSI (35 bar)>500 PSI (35 bar) | 5 times range or 2,400 PSI (170 bar) max5 times range or 10,000 PSI (700 bar) max |
| Pressure CavityVolume | ≤500 PSI (35 bar)>500 PSI (35 bar) | 3.3 ml4.2 ml |
| Mounting | May be supported by process piping |
Options
Table 5. Source: Viatran
| . | . | . |
|---|---|---|
| BF | (K)PTIH-10-6P | |
| BG | DIN 43650 | |
| BL | WK6-32S | |
| BN | (K)PTIH-8-4P | |
| BQ | (K)PT02H-10-6P | |
| BR | CF3102E-14S-6P | |
| ZU | Direct Cable (175°F max temperature) (79°C) | |
| Y() | Multiple pressure ports available. Consult factory | |
| DA | Isolated shunt | |
| DC | Extended Compensated Temperature Range (Cold) -40°F to 170°F (-40°C to 77°C) | |
| DG | Improved temp performance to 0.005% FSO per 1°F | |
| DH | Special ranging | |
| DK | Special shunt calibration setting | |
| DM | Modified full scale output | |
| DN | Improved non-linearity | |
| DQ | Cleaning for oxygen service | |
| EA | Special calibration run | |
| EH | Extended Compensated Temperature Range (Hot) +70°F to 185°F (21°C to 85°C) | |
| NH | Customer specified identification | |
| PW | 1/8 DIN digital indicator | |
| Note: | Application of some available options may affect standard performance. | Consult your Viatran representative for details. |
Image Credit: Viatran
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