Model 548 Pressure Transmitter

mA output, 0-3 thru 0-5K psi, Hazardous Approvals

548 has the approvals necessary for use in hazardous areas. Viatran offers a variety of standard options and our ability to modify our products provides flexibility to meet your specific application needs.


 High Accuracy
 Many Options available
 All Stainless Steel construction
 Shunt Calibration circuit option



The “X48” Series features all welded stainless steel construction with 316L stainless steel wetted parts. Non-linearity is 0.25% or better with an optional improved non-linearity of better than 0.1%. Standard ranges are from 3 PSI to 5,000 PSI with available outputs of mV/V, 4-20 mA and 0-5 VDC. Also available are optional zero and span adjustments.


Full Scale Pressure Range
0-3 thru 0-5000 PSIG, PSIS
0-15 thru 0-5000 PSIA
.0-15 PSIV*
Linearity (Best Fit Straight Line)
≤ ±0.25%
“DN” Option- Improved Linearity≤ ±0.1%
± 0.05% FSO
± 0.05% FSO
Full Scale Output (FSO)
16 mA ±1%
Zero Balance
≤ ±1% FSO
Long Term Stability
≤±0.25% FSO per 6 months
Response Time
≤ 1 mSec to reach 90% FSO
Temperature Effect on Zero
≤±1% FSO per 100°F (37°C)
Temperature Effect on Span
≤±1% FSO per 100°F (37°C)
Compensated Temperature
32°F to 180°F (0°C to 82°C)
Operating Temperature
-40°F to 185°F (-40°C to 85°C)
Storage Temperature Limit
-40°F to 250°F (-40°C to 121°C)
* For PSIV and Compound Range units:
Temperature Effect on Zero≤±3.0% per 100°F
Compensated Temperature Range32°F to 170°F (0°C to 77°C)
Supply Voltage
9.0 to 30 Vdc
Power Supply Regulation Effect
≤±0.05% FSO per Volt
Output Signal
4 – 20 mA
Load Resistance
12 Vdc min with 150 ohm and 30 Vdc max with 1050 ohms
Circuit Protection
Output may be short-circuited indefinitely. Input polarity may be reversed. Over voltage protected to 1000 volts. <1 msec duration.
Insulation Resistance
<5nS Conductance
Electrical Connection
1/2″ NPT (M), 18 AWG wire, 72″ long
Wire Color Codes
Case ground
No Connection
No Connection