อุปกรณ์วัดค่าอุณหภูมิและความชื้น -30 ํC ถึง 125 ํC ส่งสัญญาณ 4-20mA

โพสเมื่อ 12 ต.ค. 2010, 02:53 น.

รหัสสินค้า

NANA-107267

ชื่อสินค้า

อุปกรณ์วัดค่าอุณหภูมิและความชื้น -30 ํC ถึง 125 ํC ส่งสัญญาณ 4-20mA

ติดต่อ

Tag: อุณหภูมิและความชื้น

หมวด: Instruments and Controls/Measuring Equipment

รายละเอียด:

อุปกรณ์วัดค่าอุณหภูมิและความชื้น -30 ํC ถึง 125 ํC ส่งสัญญาณ 4-20mA

ใช้งานร่วมกับอุปกรณ์สื่อสาร, ในโรงงานอุตสาหกรรม และระบบปรับอากาศ

Programmable humidity and temperature transmitters with 4-20mA output

temperature
relative humidity
dew point temperature
absolute humidity
specific humidity
mixing ratio
specific enthalpy
compressed air measurement

Programmable temperature and humidity transmitters are equipped with temperature and relative humidity sensors. Measured values are also converted to other humidity interpretation - dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy. Degrees Celsius and Fahrenheit are user selectable. Transmitters are available in wall-mount, duct-mount and bar types. Also types with T+RH probe on a cable are available. Model T3111P is designed for compressed air measurement up to 25 bars. Transmitter contains a microprocessor based control circuitry in a durable plastic case with connection terminals and sensors in a filter with stainless steel mesh. Humidity transmitters are also available with two galvanic isolated 4-20mA outputs. Configuration of outputs and output range are user adjustable. Large dual line LCD for simultaneous display of T+RH or other humidity interpretation is an advantage. Display is possible to switch off. Computerized design ensures temperature compensation of the humidity sensor and fail indication. State-of-the-art capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation. Transmitters are designed for use in non-aggressive environment.

APPLICATIONS - measuring and control of air humidity at:

building HVAC management
building HVAC automation
warehouses
glasshouses
manufacturers
museums, archives, galleries
air-conditioned rooms
weather stations
compressed air measurement

Transmitters are approved and homologated by
RENAULT and by PSA (PEUGEOT / CITROEN) car manufacturers.

COMMON TECHNICAL PARAMETERS


Air relative humidity range:	0 to 100%
Accuracy of relative humidity measurement:	±2.5% relative humidity from 5 to 95% at 23°C
Accuracy of temperature output:	±0.4°C from -30 to +100°C ±0.4% from reading over +100°C
Available temperature units:	degrees Celsius, Fahrenheit
Accuracy and range of dew point temperature output: - for more details see graphs	±1,5°C at ambient temperature T<25°C and RH>30% range -60 to +80 °C
Accuracy and range of absolute humidity output:	±3g/m3 at ambient temperature T < 40°C range 0 to 400 g/m3
Accuracy and range of specific humidity output:	±2g/kg at ambient temperature T < 35°C range 0 to 550 g/kg
Accuracy and range of mixing ratio output:	±2g/kg at ambient temperature T < 35°C range 0 to 995 g/kg
Accuracy and range of specific enthalpy output:	±3kJ/kg at ambient temperature T < 25°C range: 0 to 995 kJ/kg
Temperature operating range of case with electronics:	-30 to +80°C
Temperature operating range of LCD display:	readable to operating temperature +70°C, it is recommended to switch OFF the LCD over +70°C
Range of humidity sensor temperature compensation:	-30 to +125°C
Current outputs - two-wire connection:	4-20mA, galvanic isolated with dual-output models
Configuration of outputs and output range:	user adjustable from the PC
Filtering ability of sensor cover:	0.025mm - filter with stainless steel mesh
Protection of the case with electronics:	IP65 electronics, IP40 sensors
Power:	9-30Vdc
Warranty:	two years