Valcom T7N Series pressure transmitters

The Valcom T7N Series pressure transmitters allow the measurement of pressure, vacuum and level in industrial, marine and off-shore. Configurations and adjustments can be made locally by means of push buttons and display or remotely using HART® protocol compatible communicators.

The Valcom Pressure transmitters are intended for direct mounting on pipe or tank. For remote sensor version and when remote seal and capillary are supplied, a bracket for wall or for 2” stand pipe mounting is also supplied.

APPLICATION FIELDS

  • Pressure, level and vacuum measurement;
  • Installation on chemical, Oil & Gas, pharmaceutical, alimentary, marine plants etc;
  • Installation in areas with persistence of potentially explosive mixtures.

Specification

electrical Specification

Typology Level Continuous
Pressure
Measure Principle Piezoresistive
Ceramic
Measuring Range -1 ÷ 0 bar
0 ÷ 1000 bar
Process Connection 1″ G-M
1/2″ G-M
1/2″ NPT-M
Process Temperature Standard: -40 ÷ +85°C
Finned body: -40 ÷ +130°C
Capillary: -40 ÷ +280°C
Accuracy Class < ± 0.07 % FS

Measurement performance

Total accuracy (*):

  • < 0.20 % FS (-25 ÷ 0°C)
  • < 0.07 % FS (0 ÷ 80°C)

Measured value update frequency:

  • 4 ÷ 20 mA + Hart®: ≈ 1 s
  • Hart®: ≈ 500 ms (On request)

Polling time:

  • 4 ÷ 20 mA + Hart®: ≈ 800 ms
  • Hart®: ≈ 500 ms (Su richiesta \ On request)

Response time: < 256 ms (Standard Hart®)

Allowable de-range:

  • Down to 30 times the Nominal Range

Damping: 0 ÷ 60 s

Environmental Conditions

Classe di temperatura:

  • Temperature class:
  • -40 ÷ +85°C
  • T6, T85°C: -40°C ≤ Tamb ≤ 60°C
  • T5, T100°C: -40°C ≤ Tamb ≤ 75°C

Temperatura di processo:

  • Process temperature:
  • -40 ÷ +85°C
  • Corpo alettato \ Finned body: -40 ÷ 130°C
  • Capillare \ Capillary: -40 ÷ 280°C
  • Temperatura lavoro display:
  • LCD working temperature: -10 ÷ +65°C
  • Temperatura di stoccaggio:
  • Storage temperature: -40 ÷ +90°C
  • Protezione contro intrusioni:
  • Ingress protection degree:
  • Custodia AISI 316 \ AISI 316 Housing: IP67
  • Custodia Alluminio \ Aluminum Housing: IP66
  • Test alle Vibrazioni:
  • Vibration Test:
  • secondo IEC 60068-2-6
  • in accordance with IEC 60068-2-6
  • Umidità Relativa:
  • Relative Humidity:
  • < 98% RH non condensante
  • < 98% RH not condensing

Donwload Datasheet: T7N Series Valcom pressure transmitters

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