Vaisala HUMICAP HMW90 SERIES Especificações descarregar pdf (Página 58)

HUMIDITY

552

HUMIDITY

WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.

kele.com888-397-5353 USA

March 2014

DEW POINT, ENTHALPY & WET BULB TRANSMITTERS

DP4A, EN4A, WB4A

Supply Voltage 18-30 VDC, 100 mA

Accuracy

Enthalpy ±2 BTU/lb

Dew Point ±1.8°F (±1°C)

Wet Bulb ±3°F (±1.7°C)

Dry Bulb ±0.5°F (±0.9°C)

Signal Output Field selectable: 4-20 mA (700 max

load), 0-5 V, or 0-10 V Humidity and

dry bulb temperature

Measurement Range

Dew Point

Duct/OSA -20° to 120°F (-28.8° to 49°C)

Space 40° to 90°F (4.4° to 32.2°C)

Enthalpy

Space/Duct/OSA 0-50 BTU/lb

Wet Bulb

Duct/OSA 0° to 100°F (-17.8° to 37.8°C)

Space 40° to 90°F (4.4° to 32.2°C)

Dry Bulb

Duct/OSA -20° to 120°F (-28.8° to 49°C)

Space 40° to 90°F (4.4° to 32.2°C)

Sensing Technology Capacitive and replaceable

Operating Humidity 0 to 99% RH, non-condensing

Operating Temperature -40° to 140°F (-40° to 60°C)

Weight

Room 0.34 lb (0.15 Kg)

Duct 0.96 lb (0.44 Kg)

OSA 1.22 lb (0.55 Kg)

Warranty 1 year

DESCRIPTION

The Amphenol Advanced Sensors Model DP4 Dew

Point, WB4 Wet Bulb, and EN4 Enthalpy Transmitters are

rugged, compact, and ideally suited for monitoring dew point,

wet bulb, or enthalpy in building automation and process

applications. Using a capacitive RH sensor and an RTD

temperature sensor, the unit’s microprocessor computes the

dew point, wet bulb, or enthalpy. Two linear outputs provide a

4-20mA signal for dew point, wet bulb, or enthalpy, and a 4-20

mA signal for dry bulb. temperature.

FEATURES

• Dew point accuracy of ±1.8°F (±1°C) over the speciﬁed

range

• Enthalpy accuracy of ±2 BTU/lb over speciﬁed range

• Wet bulb accuracy of ±3°F over the speciﬁed range

• Dry bulb accuracy of ±.05°F (±0.9°C)over the speciﬁed

range

• Two 4-20 mA output signals

• Microprocessor-based signal processing

• Weather resistant duct/OSA mounting

• Temperature compensated

APPLICATIONS

• DP4 supply air setpoint (condensation prevention)

• EN4 economizer efﬁciency

• WB4 evaporative cooling decision potential

SPECIFICATIONS

OSA

Room

Duct

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 73 74

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