NPI-19 Series

Specifications

Operating

Constant Current (1.5 mA)

Constant Voltage (10 V)

Value

Notes

Value

Notes

General

Pressure Ranges

2 .5 PSI

0 to 2.5 psi (0 to 172 mbar)

17.2 kPa

0 to 2.5 psi (0 to 172 mbar)

17.2 kPa

5 PSI

0 to 5 psi (0 to 345 mbar)

34.5 KPa

0 to 5 psi (0 to 345 mbar)

34.5 KPa

Maximum Overpressure

3x pressure

rated

3x pressure

rated

Electrical @ 77°F (25°C) unless otherwise stated

Input Excitation

1.5 mA maximum

2 mA maximum

10 VDC

12 VDC

Insulation Resistance

@ 50 VDC

@ 50 VDC

Input Impedance

4000 Ω

typical

10,000 Ω

typical

Output Impedance

5000 Ω

±20%

5000 Ω

±20%

Bridge Impedance

5000 Ω

±20%

5000 Ω

±20%

Environmental

Compensated Temperature

32°F to 158°F

(0°C to 70°C)

32°F to 158°F

(0°C to 70°C)

Operating Temperature

14°F to 176°F

(-10°C to 80°C)

14°F to 176°F

(-10°C to 80°C)

Storage Temperature

-40°F to 257°F

(-40°C to 125°C)

-40°F to 257°F

(-40°C to 125°C)

Mechanical

Weight

0.02 lb (10 g)

NPT-19A-XXX

0.02 lb (10 g)

NPT-19A-XXX

Media Compatibility

All corrosive media compatible with 316 L

stainless steel

All corrosive media compatible with 316 L

stainless steel

Case and Diaphragm

Material

316L stainless steel

316L stainless steel

Recommended O-Ring

NPI-19A; 0.66 in x 0.039 in (16.76 mm x 1 mm)

NPI-19A; 0.66 in x 0.039 in (16.76 mm x 1 mm)

Compensated

Performance

(1.5 mA)

(10 VDC)

Parameter Notes Units

Minimum

Type

Maximum

Units

Minimum

Type

Maximum

Offset

mV

-2

±1

2

mV

-2

±1

2

Full Scale Output

2.5 PSI

mV

50

125

200

mV

72

75

78

5 PSI

mV

50

125

200

mV

74

75

76

Static Accuracy

%FSO

-0.5

0.1

0.5

%FSO

-0.5

0.1

0.5

2

Thermal Accuracy of Offset

2.5 PSI

%FSO

-2

±0.5

2

%FSO

-2

±0.5

2

3

5 PSI

%FSO

-1.5

±0.5

1.5

%FSO

-1.5

±0.5

1.5

3

Thermal Accuracy of FSO

2.5 PSI

%FSO

-2

±0.5

2

%FSO

-2

±0.5

2

3

5 PSI

%FSO

-1.0

±0.5

1.0

%FSO

-1.0

±0.5

1.0

3

Thermal Repeatability

2.5 PSI

%FSO

-0.3

0.1

0.3

%FSO

-0.2

0.1

0.2

3

5 PSI

%FSO

-0.2

0.1

0.2

%FSO

-0.2

0.1

0.2

3

1. Performance with offset, thermal accuracy of offset, and thermal accuracy of FSO compensation resistors. All values measured at 77°F

(25°C) and at 1.5 mA constant current or 10 VDC, unless otherwise noted.

2. Includes Linearity (BFSL), pressure hysteresis and repeatability errors.

3. 32°F to 158°F (0°C to 70°C) with reference to 77°F (25°C).

4. Consult factory for vacuum applications.