Bộ chuyển đổi nhiệt độ, HMT 334, Vaisala VietNam

Mã sản phẩm:	HMT334
Sử dụng cho Model:
Hãng SX:	Vaisala
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Tình trạng: Còn hàng

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Liên Hệ Hỗ Trợ

- SĐT: 0984 843 683
- Mail: info@ttech.vn
- - Zalo: 0984.843.683

Thông tin sản phẩm

The Vaisala HUMICAP® Humidity and Temperature Transmitter HMT334 is designed to measure humidity in pressurized spaces or vacuum chambers. Each probe is tested to ensure a gas and vacuum tight installation.

Vaisala HUMICAP® performance
The HMT334 incorporates Vaisala’s more than 30 years of experience in industrial humidity measurement. The sensor provides accurate and reliable measurement and is immune to particulate contamination and most chemicals.

Graphical display of measurement trends and real time history
The HMT330 series features a numerical and graphical display. The user can easily monitor operational data, measurement trends and up to one-year history.

The optional data logger with realtime clock makes it possible to generate more than four years of measured history, and zoom in on any desired time or time frame.

Using a serial line, the measurement data can be transferred to a PC where it can be further processed and copied to other programs.

▪ For pressures up to 100 bar and vacuum applications
▪ For temperatures -70 ... +180 °C (-94 ... +356 °F)
▪ ISO and NPT threads available
▪ Application example: test chambers

Relative humidity
Measurement range	0 ... 100 % RH
Accuracy (including non-linearity, hysteresis, and repeatability)	with Vaisala HUMICAP® 180 or 180R	for typical applications
	with Vaisala HUMICAP® 180C or 180RC	for applications with chemical purge/warmed probe
at +15 ... +25 °C (59 ... +77 °F)	±1 %RH (0 ... 90 %) ±1.7 %RH (90 ... 100 %RH)
at -20 ... +40 °C (-4 ... +104 °F)	±(1.0 + 0.008 x reading) %RH
at -40 ... +180 °C (-40 ... +356 °F)	±(1.5 + 0.015 x reading) %RH
Factory calibration uncertainty (+20 °C)	± 0.6 % RH (0 ... 40 %RH) ± 1.0 % RH (40 ... 97 %RH)
Response time (90 %) at +20 °C (+68 °F)	8 s / 17 s* with grid filter
in still air	20 s / 50 s* with grid + steel netting filter 40 s / 60 s* with sintered filter
Temperature
Accuracy at +20 °C (+68 °F)	± 0.2 °C (± 0.36 °F)
Inputs and outputs
Operating voltage	10 ... 35 VDC, 24 VAC
with optional power supply module	100 ... 240 VAC, 50/60 HZ
Power consumption at +20 °C (Uin 24 VDC)	RS-232	max. 25 mA
	U_out 2 x 0 ... 1 V/0 ... 5 V/0 ... 10	max. 25 mA
	I_out 2 x 0 ... 20 mA	max. 60 mA
	display and backlight	+ 20 mA
	during chemical purge	max. 110 mA
	during probe heating (HMT337)	+ 120 mA
Analog outputs (2 standard, 3rd optional)	current output	0 ... 20 mA, 4 ... 20 mA
Analog outputs (2 standard, 3rd optional)	voltage output	0... 1 V, 0... 5 V, 0... 10 V
Accuracy of analog outputs at +20 °C	±0.05% full scale
Temperature dependence of the analog outputs	±0.005%/°C full scale
External loads	current outputs	R_L < 500 ohm
	0 ... 1 V output	R_L > 2 kohm
	0 ... 5 V and 0 ... 10 V outputs	R_L > 10 kohm
Max. wire size	0.5 mm2 (AWG 20) stranded wires recommended
Digital outputs	RS-232, RS-485 (optional)
Service connection	RS-232, USB
Relay outputs (optional)	0.5 A, 250 VAC
Ethernet interface (optional)	Supported standards	10/100Base-T
	Connector	RJ45
	Protocols	Telnet
	Software support	Vaisala MI70 link
Ethernet interface (optional)	Supported standards	802.11b
	Connector Type	RP-SMA
	Protocols	Telnet
	Security	WEP 64/128,WPA
	Software support	Vaisala MI70 link
Authentication / Encryption (WLAN)	Open / no encryption Open / WEP WPA Pre shared key / TKIP WPA Pre shared key / CCMP (a.k.a. WPA2)
Optional data logger with real-time clock	Logged parameters	max. three with trend/min/max values
	Logging interval	10 sec (fixed)
	Max. logging period	4 years 5 months
	Logged points	13.7 million points per parameter
	Battery lifetime	min. 5 years
Display	LCD with backlight, graphic trend display of any parameter
Menu languages	English, Chinese, Japanese, Spanish, German, French, Swedish, Russian, Finnish