Model 748 Pressure Transmitter
0-5 Vdc, Hazardous Location Approvals, 0-1.5 thru 5K PSI
748 has hazardous location approvals, optional zero and span adjustment and can measure pressures as low as 1.5 psi. Compound ranging, negative outputs, a variety of pressure and electrical connections are examples of options that are available to customize the 748 to your exact requirements
Request a Quote
Features
High Accuracy
Many Options available
All Stainless Steel construction
Low Pressure Applications
Performance
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%
Hysteresis
± 0.05% FSO
Repeatability
± 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 Range
32°F to 170°F (0°C to 77°C)
Electrical
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
Red
+Power/Signal
Black
-Power/Signal
Green
Case ground
White
No Connection
Brown
No Connection
Mechanical
Pressure Connection
1/4" - 18 NPT Female
1/4" - 18 NPT Female (0-3.3 thru 0-1034 bar)
Proof Pressure
<=500 PSI lesser of 3x or 1200 PSI
>=500 PSI lesser of 5x or 10K PSI
Burst Pressure
<=500 PSI lesser of 5x or 2400 PSI
>=500 PSI lesser of 5x or 10K PSI
Materials of Construction
Enclosure Housing
304 and 316 stainless steel
Wetted Parts
316 Stainless Steel
Weight
10 oz.
Identification
Laser etched onto body
Mounting
May be supported by pressure connection
Options
DF
Bleed port (10K PSI and below)
DH
Special range
DN
Improved Linearity ≤0.1% FSO
DQ
Cleaning for oxygen service
EA
Special calibration run
NG
ATEX Flameproof label
NH
Customer specified identification
NJ
CE label
NK
ATEX intrinsic safety label
NX
CSA intrinsic safety label
NY
FM explosion proof label
NZ
FM nonincendive label
PW
1/8 DIN digital indicator (consult factory)
TF
FM intrinsic safety label
TJ
CSA Division 2 label
TK
ATEX Type n label
TW
Russia Certificate of Conformity
Y ( )
Alternate pressure ports
Note:
Application of some available options may affect standard performance. Consult your Viatran Representative for details.
NJ and NG Options are not available on PSIV or Compound Range Units
For units equipped with a breather vent, consideration should be given to ensure that the breather element is kept clear and exposure to contamination is minimized
Model 748 Pressure Transmitter
Model 748 Pressure Transmitter
0-5 Vdc, Hazardous Location Approvals, 0-1.5 thru 5K PSI
748 has hazardous location approvals, optional zero and span adjustment and can measure pressures as low as 1.5 psi. Compound ranging, negative outputs, a variety of pressure and electrical connections are examples of options that are available to customize the 748 to your exact requirements
Request a Quote
Performance
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%
Hysteresis
± 0.05% FSO
Repeatability
± 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 Range
32°F to 170°F (0°C to 77°C)
Electrical
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
Red
+Power/Signal
Black
-Power/Signal
Green
Case ground
White
No Connection
Brown
No Connection
Model 748 Pressure Transmitter
High Accuracy
Many Options available
All Stainless Steel construction
Low Pressure Applications
Mechanical
Pressure Connection
1/4" - 18 NPT Female
1/4" - 18 NPT Female (0-3.3 thru 0-1034 bar)
Proof Pressure
<=500 PSI lesser of 3x or 1200 PSI
>=500 PSI lesser of 5x or 10K PSI
Burst Pressure
<=500 PSI lesser of 5x or 2400 PSI
>=500 PSI lesser of 5x or 10K PSI
Materials of Construction
Enclosure Housing
304 and 316 stainless steel
Wetted Parts
316 Stainless Steel
Weight
10 oz.
Identification
Laser etched onto body
Mounting
May be supported by pressure connection
Options
DF
Bleed port (10K PSI and below)
DH
Special range
DN
Improved Linearity ≤0.1% FSO
DQ
Cleaning for oxygen service
EA
Special calibration run
NG
ATEX Flameproof label
NH
Customer specified identification
NJ
CE label
NK
ATEX intrinsic safety label
NX
CSA intrinsic safety label
NY
FM explosion proof label
NZ
FM nonincendive label
PW
1/8 DIN digital indicator (consult factory)
TF
FM intrinsic safety label
TJ
CSA Division 2 label
TK
ATEX Type n label
TW
Russia Certificate of Conformity
Y ( )
Alternate pressure ports
Note:
Application of some available options may affect standard performance. Consult your Viatran Representative for details.
NJ and NG Options are not available on PSIV or Compound Range Units
For units equipped with a breather vent, consideration should be given to ensure that the breather element is kept clear and exposure to contamination is minimized
Model 748 Pressure Transmitter
Model 748 Pressure Transmitter