Model 28H Barometric Pressure Transmitter

Model 28H Barometric Pressure Transmitter

0-5 VDC, High Accuracy, 25" thru 32" HgA

Viatran's Model 28H pressure sensor is among our most accurate pressure transmitters for industrial test and research applications. The 28H measures barometric pressure from 25" to 32" HgA with Improved Accuracy of ≤±0.06% FSO available.

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Features

High Accuracy

Many Options available

All Stainless Steel construction

Low Pressure Applications

Resources

Print Page

Download Data Sheet

Manual

Performance

Full Scale Pressure Ranges (FSPR)

25" to 32" HgA

(Optional ranges can be factory set from 0” to 32” HgA with a minimum 7” HgA span)

Accuracy (RSS*)

≤±0.21% FSO**

Nonlinearity (Best Fit Straight Line)

≤±0.1% FSO (≤±0.06% FSO with DN option)

Hysteresis & Repeatability

≤±0.13% FSO each

Full Scale Output (FSO)

5 Vdc ≤±0.5% FSO at 70°F (21°C) Standard

10 Vdc ≤±0.5% FSO at 70°F (21°C) Optional

Resolution

Infinite

Long Term Stability

≤±0.5% FSO per 6 months (typical)

Compensated Temperature Range

32°F to 170°F (0° to 77° C)

Process Media Temperature Range

-40°F to 250°F (-40°C to 121°C)

Ambient Operating Temperature Range

-40°F to 185°F (-40°C to 85°C)

Storage Temperature Limits

-40°F to 185°F (-40°C to 85°C)

Temperature Effect on Zero

≤±0.01% FSO per 1°F (.556°C)

Temperature Effect on Span

≤±0.01% FSO per 1°F (.556°C)

Notes

Note:

Application of some available options may affect standard performance. Consult Viatran for details.

*RSS

Root Sum Squared for Non-Linearity, Hysteresis, Repeatability

**FSO

The algebraic difference between full scale pressure output value and the maximum pressure output value.

***Calibration

Calibration is performed at ambient temperature of 70°F (21°C). Maximum thermal error was calculated from this datum.

Pressure reference temperature = 32°F (0°C)

Electrical

Supply Voltage

8 to 30 Vdc at 3.5 mA nominal, 5 mA max

12 to 30 Vdc (10 Vdc Output Option)

Power Supply Regulation

≤±0.01% FSO per volt change over the supply voltage range

Output Signal

0 - 5 Vdc (Standard)

0 - 10 Vdc (Optional)

Load Resistance

100K Ohms minimum

Circuit Protection

Input polarity may be reversed. Output may be short-circuited indefinitely Over voltage protection to 1000 volts according to EN61000-4-5

Insulation Resistance

<5 nS to case ground

Response Time

<2 mSec to reach 90% of full scale

RFI / EMI Suppression

CE EMC compliant per IEC EN 61326-1 & 61326-2-3 Annex BB, CE marked

Electrical Connection

Bendix / Amphenol PT02E-10-6P, mates PT06E-10-6S (SR)

Pin Outs

Pin A + Power

Pin B - Power

Pin C + Signal

Pin D - Signal

Pin E No connection

Pin F No connection

Shell

Ground

Materials of Construction

Wetted Parts

316 stainless steel

Housing

304 SS with an Aluminum alloy, black zinc-cobalt plated electrical connector

Weight

10 oz (283 g)

Mechanical

Pressure Connection

1/4" - 18 NPT female

Proof Pressure

45 PSI (92 HgA)

Burst Pressure

75 PSI (153 HgA)

Pressure Cavity Volume

1.5 mL

Mounting

May be supported by process piping

Identification

Laser etched onto body

Options

BF

(K)PTIH-10-6P

BG

DIN 43650

BL

WK6-32S

BN

(K)PTIH-8-4P

BQ

(K)PT02H-10-6P

BR

CF3102E-14S-6P

ZU

Direct Cable: 175°F (79°C) max temperature

Y( )

Multiple pressure ports available. Consult factory

DC

Extended temperature operation: -40°F to 170°F (-40°C to 77°C)

DG

Improved temperature compensation ( ± 0.5% FSO per 100°F (55.6°C) zero and span shift)

DH

Special ranging

DM

Modified full scale output

DN

Improved Accuracy (Non Linearity) ≤±0.06% FSO

DQ

Cleaning for oxygen service

EA

Special calibration run

NH

Customer specified identification

PW

Scaled with Process Meter

VU

1/8" Barbed (Male) Port