Vaisala DPT145 - Mutliparameter Transmitter for SF6 Gas, online measurement of dew point, pressure, and temperature plus calculates 4 other values, including SF6 density

Name: Vaisala DPT145 - Mutliparameter Transmitter for SF6 Gas, online measurement of dew point, pressure, and temperature plus calculates 4 other values, including SF6 density
Brand: Vaisala
SKU: VaisalaDPT145
Price: 1939.90 USD
Availability: InStock

0 reviews | Catalog: DPT145 | Model: Vaisala DPT145

Vaisala DPT145 Mutliparameter Transmitter for SF6 Gas, online measurement of dew point, pressure, and temperature plus calculates 4 other values, including SF6 density

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DPT145 Multiparameter Transmitter for SF6 Gas insulation condition assessment

First transmitter to off er online measurement of seven SF6 parameters in one unit
Measured parameters: dew point, pressure, temperature
Calculated parameters: SF6 density, normalized pressure, dew point in atmospheric pressure, ppm
More reliable assessment of the condition of SF6 insulation due to online measurement
Digital output RS-485 with Modbus
Long calibration interval of years

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Non-Cancellable / Non-Returnable

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Vaisala DPT145 Mutliparameter Transmitter for SF6 Gas

The Vaisala Multiparameter Transmitter DPT145 for SF6 Gas is a unique innovation that enables online measurement of dew point, pressure, and temperature. It also calculates four other values, including SF6 density. The DPT145 is especially well suited for integration into OEM systems.

Online Reliability

Online dew point measurement combined with pressure measurement provides an excellent assessment of the condition of the SF6 insulation. Sudden and minor leakages are immediately detected by the direct normalized pressure measurement, while online dew point measurement alerts the user to moisture issues, which can weaken the insulation properties of SF6 and cause rapid deterioration. With the DPT145, it is also easy to build a redundant solution for multiple parameters.

Savings Across the Board

A single transmitter, instead of several, saves time and money across the board, from investment to installation, operation, and servicing. Lower assembly costs, fewer cables and connectors, minimized need for on-site visits and ®eld operations - all these translate into cumulative savings. The long calibration interval results in further savings.

Risk-free, Greener Solution

Online measurement enables gas trends to be followed via a data collection system, making monitoring fast, risk-free, and accurate. Using one instrument for monitoring seven dierent parameters means also fewer mechanical connections and reduces the risk of leaks. Monitoring is environmentally friendly because there is no need for sampling - no SF6 gas is released into the atmosphere.

The Fruit of Experience

Vaisala has over 70 years of extensive measurement experience and knowledge. The DPT145 brings together the proven DRYCAP dew point sensor technology and BAROCAP pressure sensor technology in one package, providing an innovative and convenient solution for monitoring SF6 gas.

Vaisala DPT145 General Specifications
Measured Parameters	Dew point	-50 ... +30 °C (-58 ... +86 °F)
	Pressure, absolute	1 ... 12 bar (14.5 ... 174 psi)
	Temperature	-40 ... +80 °C (-40 ... +176 °F)
Calculated Parameters	Pressure, normalized to +20 °C (+68 °F)	1 ... 12 bar (14.5 … 174 psi)
	SF6 or SF6/N2 mixture density	0 ... 100 kg/m³
	Moisture by volume, ppm	40 ... 40 000 ppm
	Dew point, converted to atmospheric pressure	-65 … +30 °C (-85 ... +86 °F)
Measurement Performance	Dew point accuracy	±3 °C (±5.4 °F)
	Dew point stability	Typical drift < 2 °C (3.6 °F) / 5 years
	Pressure accuracy at +23 °C (+73.4 °F)	±0.4 %FS
	Pressure temperature dependence	±0.01 bar/10 °C (18 °F)
	Pressure stability	Typical drift < 1 %FS / 5 years
	Temperature accuracy	0 ... +40 °C (+32 ... +104 °F): ±0.5 °C (± 0.9 °F), -40 ... 80 °C (-40 ... +176 °F): ±1 °C (± 1.8 °F)
	Density accuracy (pure SF6, 1 ... 12 bara)	0 ... +40 °C (+32 ... +104 °F): ±1 %FS, -40 ... +60 °C (-40 ... +140 °F): ±2.2 %FS
	Typical ppm accuracy (5 ... 1000 ppm, 7 bar)	±(7 ppm + 15 % of reading)
	Sensor	Vaisala MPS1 multiparameter sensor
	Sensor Response Time
	Pressure response time	< 1 s
	Dew point response time 1) 63 % [90 %] at 20 °C and 1 bar	-50 - -10 °C Tdf: 5 s [10 s] -10 - -50 °C Tdf: 10 s [2.5 min]
Inputs and Outputs	Digital inputs	RS-485, non-isolated, Vaisala protocol Modbus RTU protocol
	Connector	4-pin M8
	Operating voltage	15 ... 28 VDC 20 ... 28 VDC in cold temperatures (-40 ... -20 °C (-40 ... -4 °F))
	Supply current, during normal measurement	20 mA
	Supply current, during self-diagnostics	Max. 300 mA pulsed
Operating Environment	Operating temperature of electronics	-40 … +60 °C (-40 ... +140 °F)
	Operating pressure	0 … 50 bar (0 … 725 psi)
	Relative humidity	0 … 100 %
	Measured gases	SF₆, SF₆/N₂ mixture
	Storage temperature, transmitter only	-40 … +80 °C (-40 ... +176 °F)
	Storage temperature, shipment package	-20 … +80 °C (-4 ... +176 °F)
Mechanical Specification	Housing material	AISI316L
	Weather shield to be used for continuous outdoor installations
	Mechanical connection	DILO DN20, DILO DN8, ABB Malmkvist, or Alstom G1/2 in compatible connector Every connection is helium leak tested at the factory.
	Weight (with DILO adapter)	765 g (27.0 oz)
Compliance	IP rating	IP66
	EMC compliance	EN61326-1, Electrical equipment for measurement, control and laboratory use - EMC requirements
	Industrial Environment, Tested Levels
	EN/IEC 61000-4-2, Electrostatic Discharge	8 kV con / 15 kV air
	EN/IEC 61000-4-3, RF ®eld immunity	10 V/m (80MHz-4.2GHz)
	EN/IEC 61000-4-4, Electric Fast Transient	±2 kV power and signal
	EN/IEC 61000-4-5, Surge	±2 kV power line to ground / ±1kV signal line to ground and power line to line
	EN/IEC 61000-4-6, Conducted RF Immunity	10 Vemf power line and digital output
	Mechanical Vibration
	EN/IEC 60068-2-6, Fc Sinusoidial vibration	±6 g, 5-500 Hz sweep 60 min/axis, 3-axis