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เครื่องวัดอุณหภูมิความชื้น และความดัน สามารถรับสัญญาณได้ 3 input และมี output relay 2 output สั่งงานและดูผลผ่าน Internet PDF พิมพ์ อีเมล

เครื่องวัดอุณหภูมิความชื้น และความดัน สามารถรับสัญญาณได้ 3 input และมี output relay 2 output สั่งงานและดูผลผ่าน Internet

เหมาะกับ Data Center, Server Room, พิพิธภัณฑ์, คลังเก็บสินค้า ที่ต้องควบคุมสภาพแวดล้อม เพราะเครื่องจะสามารถรับสัญญาณเตือนได้ถึง 3 input เช่น ตัวตรวจจับควัน, การเปิดปิดประตู, ระดับแรงดันไฟฟ้า เป็นต้น โดยเครื่องมี 2 relay output เพื่อแจ้งเตือนเจ้าหน้าที่ อาจจะเป็นสัญญาณเสียงและสัญาณไฟ และแจ้งเตือนผู้เกี่ยวข้องผ่านทาง Email สามารถตรวจสอบและบันทึกผลได้หลายๆตัวพร้อมกันโดยผ่าน Database Software

 

 

Also known as: industrial Ethernet, remote server environment monitoring, computer room monitor, data center thermometer, temperature humidity IP sensor, computer room temperature alert.

  • temperature
  • barometric pressure
  • relative humidity
  • dew point temperature
  • absolute humidity
  • specific humidity
  • mixing ratio
  • specific enthalpy
  • three binary inputs

Transmitter is equipped with three binary inputs for detection of two-state events - e.g. water, smoke, glass break detection, door contact. Fully equipped transmitter contains temperature, humidity, pressure sensors. Measured temperature and relative humidity is recalculated to other humidity interpretations - dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy.
Reading and pressure output available in these units: hPa, kPa, mbar, mmHg, inHg, inH2O, PSI, oz/in2. Degrees Celsius and Fahrenheit are user selectable.
Large dual line LCD for simultaneous display of temperature, pressure or relative humidity or other calculated humidity interpretation is an advantage. Parameters are easy adjustable from transmitter keyboard or from the computer.
State-of-the-art capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation. Transmitter is designed for use in non-aggressive environment.
Transmitter is equipped with two relay outputs for alarm indication or control of external devices. Each relay can be assigned to any measured or computed value. For each relay setting of delay, hysteresis, audible alarm is enabled.

NEW !

Easy creation of online data acquisition system from Ethernet sensors by using new low cost database software Comet DBS Sensor Monitor - see also Accessories.


online monitoring

APPLICATIONS - online monitoring of temperature, humidity, pressure and three binary signals at:

  • server and computer rooms
  • rack monitoring
  • industrial Ethernet
  • building management and automation
  • telecommunication devices
  • warehouses, glasshouses, manufacturers
  • museums, archives, galleries
  • air-conditioned rooms
  • weather stations
MODES OF COMMUNICATION
Modbus TCP: Modbus TCP protocol enables to read measured values and binary input states, set alarm limits, adjust the probe.
Telnet: Port 9999 enables to set alarm limits (lower, upper limits, hysteresis for measured values and time delay), e-mail addresses, SNMP addresses, probe description, refresh of www pages (10s to 65535s), set storing interval to history (10s to 65535s), enable each communication channel. Capacity of the history memory is 100 sets of temperature, humidity, pressure + computed values. Password protection of this port is enabled. Automatic IP address assignment from DHCP server is also enabled.
WWW pages: User selectable design of www pages enabling to display curve of measurement history and binary input states. User can design the look of www pages and temperature, humidity, pressure + computed values history.

Temperature, humidity, pressure in Roznov p.R., Czech Republic
from online www internet sensor T7511
SNMP: It is possible to read actual values, alarm limits and binary input states. In case of alarm creation warning message (trap) is sent to addresses defined by the user (maximum three addresses).
SOAP: Online transmitter enables to send actual measured data in the format of SOAP message to selected web server in preset interval 10-65535 s.

Online transmitter enables to monitor measured values and binary input states. In case of exceeding of adjusted limits warning message can be sent to specified addresses.
There are the following options of alarm indication:

ALARM INDICATION OPTIONS
E-mail: In case of alarm creation warning e-mail message is sent to addresses defined by the user (maximum three addresses) or via e-mail to SMS message. Basic SMTP autentization is supported.
SNMP: In case of exceeding of adjusted temperature, humidity, pressure + computed value limits or binary input states alarm is activated and warning trap is sent to user specified IP addresses (maximum 3 addresses).
WWW pages: In case of exceeding of adjusted temperature, humidity, pressure + computed value limits or binary input states active alarm is displayed on www page.
syslog: Online transmitter enables to send text messages to selected syslog server after different events appear. E.g. after transmitter restart, alarm activation, communication error with SNTP, after firmware change, after alarm termination, after communication error with SOAP server.

Synchronizing of time and record to www table and measured values history is enabled by SNTP via Internet.

TECHNICAL PARAMETERS OF THE ONLINE SENSOR
Maximum switching voltage, current, power of relay output: 50V, 2A, 60VA
Audible alarm: from built-in beeper - switchable
Operating relative humidity range: 0 to 100%
Accuracy of relative humidity measurement: ±2.5% relative humidity from 5 to 95% at 23°C
Temperature measurement accuracy: ±0.4°C
Available temperature units: degrees Celsius, Fahrenheit
Accuracy and range of dew point temperature:
- 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: ±2g/kg at ambient temperature T < 35°C
range 0 to 550 g/kg
Accuracy and range of mixing ratio: ±2g/kg at ambient temperature T < 35°C
range 0 to 995 g/kg
Accuracy and range of specific enthalpy: ±3kJ/kg at ambient temperature T < 25°C
range: 0 to 995 kJ/kg
Accuracy and range of barometric pressure output: ± 1.3hPa at 23°C
range: 600 to 1100hPa
Supported pressure units: hPa, kPa, mbar, mmHg, inHg, inH2O, PSI, oz/in^2
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 RH sensor temperature compensation: -30 to +105°C
Signal for binary inputs: from voltage-less contact, open collector or two-state voltage signal.
Inputs are not galvanically isolated.
Minimum pulse length at binary input: 500 ms (shorter pulse may not be detected)
Voltage at open contact: 3.3 V
Low voltage level: 0 to +0.2 V
High voltage level: +3.0 to +30V
Filtering ability of sensor cover: 0.025mm - filter with stainless steel mesh
Protection: IP30 electronics, IP40 sensors
LAN connection: RJ-45 connector
Power: 9 - 30 Vdc, maximum consumption 250mA.
For power over Ethernet any PoE splitter is necessary e.g. DWL-P50 from D-Link company
Power connector: co-axial, diameter 5.5 x 2.1 mm
Dimensions of the case: 135 x 136 x 45 mm (W x H x D)
Warranty: two years