Hottinger Brüel & Kjaer GmbH
For many decades, HBM and Brüel & Kjær have been trusted by multiple industries to ……...
Model 385—Pressure Transmitter
The Zero Cavity design of Viatran’s Model 385 Flush Tip provides an isolated sensor assembly that almost removes the installation torque effect and can endure spikes in pressure up to 20 times burst pressure and 5 times proof pressure.
The Model 385 Flush Tip has an output of 4–20 mA and enables blender pressure measurement
Features
 |
RoHS-compliant |
|
All stainless steel construction |
 |
Optional shunt calibration circuit |
Performance
Table 1. Source: Viatran
| . | . |
|---|---|
| Full Scale Pressure Ranges | 0-50,100, 150, 160, 200, 250, 300, 400, 500, 1,000 PSIG / PSIS |
| Static Error Band | ≤±0.5% FSO (Includes BFSL, Hysteresis and Repeatability by RSS) |
| Compensated Temperature Range | 70°F to 170°F (21°C to 77°C) |
| Operating Temperature Range | -40°F to 185°F (-40°C to 85°C) |
| Storage Temperature Range | -40°F to 250°F (-40°C to 120°C) |
| Long Term Stability (%FSO) | ≤±0.5% FSO per 6 months |
| Thermal Effect on Zero | ≤±2% FSO per 100°F Typical |
| Thermal Effect on Span | ≤±2% FSO per 100°F Typical |
Electrical
Table 2. Source: Viatran
| . | . | . |
|---|---|---|
| Output Signal | 4-20 mA | |
| Supply Voltage | 8-28 Vdc | |
| Power Supply Regulation | <±.05% FSO per volt | |
| Load Impedance | 926 Ohms maximum at 28 volts DC | |
| Circuit Protection | Reverse polarity protected, CE marked | |
| RFI / EMI | CE EMC compliant as per IEC EN 61326-1 and EN 61326-2-3 Annex BB | |
| Voltage Spike Protection | Withstand 1000 volt spike per EN 61000-4-5 | |
| Insulation Resistance | <5 nS | |
| Response Time | <2 mSec for 10-90% of final value | |
| Electrical Connection | Bendix PT02E-10-6P, mates PT06E-10-6S (SR) (BH option) | |
| Pin Outs | Pin A | + Power / Signal |
| Pin B | - Power / Signal | |
| Pin C | No connection | |
| Pin D | No connection | |
| Pin E | AC Ground | |
| Pin F | No connection | |
| Shell | Case Ground |
Mechanical
Table 3. Source: Viatran
| . | . |
|---|---|
| Standard Pressure Port | 1/2" NPT (M) |
| Zero Effect from Installation | <±0.10% at 25 to 50 ft lbs |
| Proof Pressure | 5x |
| Burst Pressure | 20x |
Materials of Construction
Table 4. Source: Viatran
| . | . |
|---|---|
| Wetted Materials | 15-5 PH and 304L Stainless Steel (Inconel 718 optional) |
| Weight | 8 oz. nominal |
Options
Table 5. Source: Viatran
| . | . | . |
|---|---|---|
| Pressure Ranges | AH: 0-50 PSI | |
| AM: 0-100 PSI | ||
| AN: 0-150 PSI | ||
| CA: 0-160 PSI | ||
| AP: 0-200 PSI | ||
| AQ: 0-250 PSI | ||
| AR: 0-300 PSI | ||
| AT: 0-400 PSI | ||
| AU: 0-500 PSI | ||
| AY: 0-1,000 PSI | ||
| Alternate Electrical Connections | BH | Welded - 6 Pin bayonet shell size 10 |
| ZE | Welded - 4 Pin Hermetic,shell size 14S, (MIL-DTL-5015H) | |
| ZU | Welded- Direct Coupled Cable | |
| Pressure Connection | VQ | 3/4"-16 UNF (M) (Includes Std Nitrile / NBR "O" ring) |
| VR | G 1/2" (M) (Includes Std Nitrile / NBR ED Seal according to DIN 3869) | |
| Performance Options | DA | Isolated Internal Shunt Cal at 80% Full Scale |
| DC | Extended Compensated Temperature Range (Cold) -40°F to 170°F (-40°C to 77°C) | |
| EA | Special Calibration Run | |
| EH | Extended Compensated Temperature Range (Hot) +70°F to 185°F (21°C to 85°C) | |
| GA | "O" Ring or ED Seal- VITON® / FKM material | |
| GD | "O" Ring - EPDM material (not available with "VR" option) | |
| NH | Customer Specified Identification | |
| PW | 1/8 DIN Digital Indicator | |
| QK | Inconel 718 - for all wetted parts (minimum range is 0-150 PSI) |
Image Credit: Viatran
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