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Model 344 Pressure Transmitter

4-20 mA, 5"wc to 100 psi

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Viatran's 344 sensor is a low range pressure transmitter designed for the test market. The 344 features highly accurate pressure measurement in ranges from 5 inches water column to 100 PSI. The unique variable capacitance technology allows for extreme overpressure protection up to 500 PSI.


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Features

High Accuracy
Many Options available
Low Pressure Applications

Resources

Manual

Additional Downloads

Model 244 - 344 Data Sheet

Product Selection


The Model 344 offers a 4 to 20 mA signal. Using our variable capacitance technology, the Model 344 transmitter provides extreme overpressure protection up to 500 PSI. This sensor design provides standard accuracy of <±0.15% FSO. The unit also offers standard temperature performance to ±2%/100° F with an improved option to±1%/100° F.
All wetted surfaces of the X44 Series are constructed with 316 stainless steel, making them ideal for wet/wet applications.In environmental test chambers, these surfaces withstand contaminants such as water vapor, oil, exhaust or mists.

Atmospheric reference is specially constructed to withstand the ingress of moisture, ensuring accurate pressure measurement.
Model 344 features an internal calibration circuit for easy field set-up, a quick disconnect electrical connection and external zero and span controls. These features allow you to calibrate the transducer without an external pressure source and eliminate the need to send the unit to a metrology lab for calibration.

Performance
Full Scale Pressure Ranges
0-5, 10, 20, 50, 100, 300, 750" W.C.
0-15, 50, 100 PSIG
Nonlinearity (Best Fit Straight Line)
≤±0.15% FSO
Hysteresis & Repeatability
≤±0.10% FSO
Full Scale Output (FSO)
16 mA at 70°F (21°C)
Long Term Stability
≤±0.2% FSO per 6 months
Zero Shift After 500 PSI Overload
≤± 0.1% FSO
Compensated Temperature Range
70°F to 170°F (21°C to 76°C)
Ambient Operating Temperature Range
0° F to +250° F
Storage Temperature Limits
-40°F to 250°F (-40°C to 121°C)
Temperature Effect on Zero
<± 2.0% FSO per 100° F
Temperature Effect on Span
<± 2.0% FSO per 100° F
Electrical
Supply Voltage
10 to 42 Vdc
Power Supply Regulation
≤±0.1% FSO change over the supply voltage range
Output Signal
4 to 20 mA
Load Resistance
1600 Ohms with input voltage change from 10 to 42 Vdc
Zero Adjustment
± 5 % FSO min
Span Adjustment
± 10% FSO min
Calibration Signal
80% of FSPR, by shorting pins C & D
Calibration Signal Accuracy
≤±0.5% FSO
Circuit Protection
Reverse polarity protected
Insulation Resistance
<1nS
Response Time
From 0.2 Sec for 5" W.C. range down to 0.008 Sec for 100 PSI range. Faster response available with NF option.
Electrical Connection
Bendix PT02E-10-6P, mates PT06E-10-6S (SR)
Pin Outs
Pin A + Power / Signal
Pin B - Power / Signal
Pin C Calibrate
Pin D Calibrate
Pin E No Connection
Pin F No Connection
Materials of Construction
Wetted Parts
316 Stainless steel
Housing
304 and 316 Stainless Steel with an Aluminum alloy, black zinc-cobalt plated electrical connector
Weight
3.6 lbs.
Identification
Laser etched onto body
Mechanical
Pressure Connection
1/4" - 18 NPT female
Proof Pressure
500 PSI
Burst Pressure
1000 PSI
Position Sensitivity
≤ ± 1.0” W.C. in any orientation
Shock & Vibration
≤ ± 1.0% FSO per G for 50 Hz to 200 Hz along any axis
Fill Fluid
Dow DC200 Silicone oil
Mounting
.May be supported by process piping or by optional mounting bracket
Options
ELECTRICAL CONNECTION
BA
(K)PTIH-12-8P
BF
(K)PTIH-10-6P
BG
DIN 43650
BI
CF3102E-14S-2P
BK
WK4-32S
BL
WK6-32S
BM
WKA7-32S
BN
(K)PTIH-8-4P
BQ
(K)PT02H-10-6P
BR
CF3102E-14S-6P
BS
CF3102E-14S-5P
ZS
(K)PTO2E-10-6P
ZV
C31-10-6P-20-OP1 (SS)
PERFORMANCE OPTIONS
DG
Improved temperature compensation to ±1.0% FSO per 100°F
DH
Special ranging
DK
Special shunt calibration setting
DQ
Cleaning for oxygen service
EA
Special calibration run
NF
Fast response time
NH
Customer specified identification
PW
1/8 DIN digital indicator
ALTERNATE PRESSURE PORTS
YA
MS 33649-04
YH
1/8 NPT(M)
YI
1/8 NPT(F)
YK
1/4 NPT(M)
YN
3/8 NPT(F)
Note:
Application of some available options may affect standard performance. Consult your Viatran representative for details.

Model 344 Pressure Transmitter

Product Thumbnail

Model 344 Pressure Transmitter

4-20 mA, 5"wc to 100 psi

Viatran's 344 sensor is a low range pressure transmitter designed for the test market. The 344 features highly accurate pressure measurement in ranges from 5 inches water column to 100 PSI. The unique variable capacitance technology allows for extreme overpressure protection up to 500 PSI.


Request a Quote

Performance
Full Scale Pressure Ranges
0-5, 10, 20, 50, 100, 300, 750" W.C.
0-15, 50, 100 PSIG
Nonlinearity (Best Fit Straight Line)
≤±0.15% FSO
Hysteresis & Repeatability
≤±0.10% FSO
Full Scale Output (FSO)
16 mA at 70°F (21°C)
Long Term Stability
≤±0.2% FSO per 6 months
Zero Shift After 500 PSI Overload
≤± 0.1% FSO
Compensated Temperature Range
70°F to 170°F (21°C to 76°C)
Ambient Operating Temperature Range
0° F to +250° F
Storage Temperature Limits
-40°F to 250°F (-40°C to 121°C)
Temperature Effect on Zero
<± 2.0% FSO per 100° F
Temperature Effect on Span
<± 2.0% FSO per 100° F

Electrical
Supply Voltage
10 to 42 Vdc
Power Supply Regulation
≤±0.1% FSO change over the supply voltage range
Output Signal
4 to 20 mA
Load Resistance
1600 Ohms with input voltage change from 10 to 42 Vdc
Zero Adjustment
± 5 % FSO min
Span Adjustment
± 10% FSO min
Calibration Signal
80% of FSPR, by shorting pins C & D
Calibration Signal Accuracy
≤±0.5% FSO
Circuit Protection
Reverse polarity protected
Insulation Resistance
<1nS
Response Time
From 0.2 Sec for 5" W.C. range down to 0.008 Sec for 100 PSI range. Faster response available with NF option.
Electrical Connection
Bendix PT02E-10-6P, mates PT06E-10-6S (SR)
Pin Outs
Pin A + Power / Signal
Pin B - Power / Signal
Pin C Calibrate
Pin D Calibrate
Pin E No Connection
Pin F No Connection

Model 344 Pressure Transmitter

High Accuracy
Many Options available
Low Pressure Applications

The Model 344 offers a 4 to 20 mA signal. Using our variable capacitance technology, the Model 344 transmitter provides extreme overpressure protection up to 500 PSI. This sensor design provides standard accuracy of <±0.15% FSO. The unit also offers standard temperature performance to ±2%/100° F with an improved option to±1%/100° F.
All wetted surfaces of the X44 Series are constructed with 316 stainless steel, making them ideal for wet/wet applications.In environmental test chambers, these surfaces withstand contaminants such as water vapor, oil, exhaust or mists.

Atmospheric reference is specially constructed to withstand the ingress of moisture, ensuring accurate pressure measurement.
Model 344 features an internal calibration circuit for easy field set-up, a quick disconnect electrical connection and external zero and span controls. These features allow you to calibrate the transducer without an external pressure source and eliminate the need to send the unit to a metrology lab for calibration.

Materials of Construction
Wetted Parts
316 Stainless steel
Housing
304 and 316 Stainless Steel with an Aluminum alloy, black zinc-cobalt plated electrical connector
Weight
3.6 lbs.
Identification
Laser etched onto body

Mechanical
Pressure Connection
1/4" - 18 NPT female
Proof Pressure
500 PSI
Burst Pressure
1000 PSI
Position Sensitivity
≤ ± 1.0” W.C. in any orientation
Shock & Vibration
≤ ± 1.0% FSO per G for 50 Hz to 200 Hz along any axis
Fill Fluid
Dow DC200 Silicone oil
Mounting
.May be supported by process piping or by optional mounting bracket

Options
ELECTRICAL CONNECTION
BA
(K)PTIH-12-8P
BF
(K)PTIH-10-6P
BG
DIN 43650
BI
CF3102E-14S-2P
BK
WK4-32S
BL
WK6-32S
BM
WKA7-32S
BN
(K)PTIH-8-4P
BQ
(K)PT02H-10-6P
BR
CF3102E-14S-6P
BS
CF3102E-14S-5P
ZS
(K)PTO2E-10-6P
ZV
C31-10-6P-20-OP1 (SS)
PERFORMANCE OPTIONS
DG
Improved temperature compensation to ±1.0% FSO per 100°F
DH
Special ranging
DK
Special shunt calibration setting
DQ
Cleaning for oxygen service
EA
Special calibration run
NF
Fast response time
NH
Customer specified identification
PW
1/8 DIN digital indicator
ALTERNATE PRESSURE PORTS
YA
MS 33649-04
YH
1/8 NPT(M)
YI
1/8 NPT(F)
YK
1/4 NPT(M)
YN
3/8 NPT(F)
Note:
Application of some available options may affect standard performance. Consult your Viatran representative for details.

Model 344 Pressure Transmitter

Model 344 Pressure Transmitter

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