COMET SYSTEM, s.r.o.
Bezrucova 2901
756 61  Roznov pod Radhostem
CZECH REPUBLIC
Tel.: +420 571 653 990

E-mail: info@cometsystem.com


 

Monitoring
Systems
Multiloggers Transmitters
And Regulators
Data
Loggers
Temperature
Recorder with Printer
Portable
Instruments
Temperature
Probes

H3531P - compressed-air thermometer hygrometer with Ethernet interface and relays

code: H3531P
Compressed-air ambient humidity, temperature Ethernet sensor with two relay outputs. T+RH probe from hard anodized duralumin for compressed air up to 25 bars with cable.

Sensor H3531P is designed for online monitoring of temperature, relative humidity of air without aggressive substances. Three binary inputs to detection of two-states signals are the advantage. Other devices are controlled by two relay outputs.

High precision capacitive polymer sensor ensures excellent long term calibration stability and ultimate accuracy. Measured values are also converted to other humidity interpretation: dew point temperature, absolute humidity, specific humidity, mixing ratio and specific enthalpy.

The device is supplied with T+RH probe with 1m cable. Cable lengths 2m or 4m available optionally.

Included in delivery:


Send request
   

Features

APPLICATIONS:

  • Server rooms monitoring
    Temperature/humidity and binary inputs monitoring of the server rooms and rack units, SNMP monitoring, alert by email and Syslog

  • Building HVAC management
    Temperature/humidity monitoring of buildings, history data to Comet Database, alert by email or SMS

  • Warehouses
    Temperature/humidity monitoring of storage, history data to Comet Database or 3rd party SCADA system

  • Museums, archives, galleries
    Temperature/humidity is requested for rooms where old valuable documents are stored, history data to Comet Database, alert by email or SMS

  • Factories and manufacturing
    Temperature/humidity monitoring for food processing industry, pharmaceutical industry, aerospace industry, etc.

  • Air-conditioned rooms
    Temperature rising indicates cooling fault, alert by email
 

Temperature Humidity Dew point Relay BIN Inputs LCD
Acoustic Ethernet WWW Email CSV Modbus
SNMP Trap SOAP Syslog SNTP

Online Ethernet Monitoring system

SOFTWARE:

  • Comet Database
    Complex solution for data acquisition and analysing. Easy to use and high flexible database software for Comet Sensors.

  • T-Sensor software
    Free configuration utility for COMET sensor.

 

FEATURES:

Temperature and humidity
Temperature  Humidity Sensor is designed to measuring from internal temperature and humidity sensor. High precision capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation. Web Sensor is designed for use in non-aggressive environment. Degrees Celsius and Fahrenheit are user selectable.
Dew point and computed quantities
Dew point Measured values are also converted to other humidity interpretation: dew point temperature, absolute humidity, specific humidity, mixing ratio and specific enthalpy. User can select one of these interpretation.
Releay outputs
Relay Two relay output for alarming or external device control. It is possible to assign any input value to each relay. Relay can be remotely controlled using ModbusTCP communication protocol.
Binary inputs
BIN Inputs It is possible to read three binary inputs status for detection of two-state events - e.g. smoke, water leak detectors, door contact. Supported binary inputs: dry contact, open collector or two-state voltage signal.
Dual line LCD
LCD Large dual line LCD for simultaneous display of temperature, relative humidity or other calculated humidity interpretation is an advantage. Displayed values are user selectable. Display can be switched off.
Acoustic alarms
Acoustic Acoustic signalisation can be activated after exceeding set limits. Alarm can be confirmed (deactivated) from device keyboard.
Ethernet interface
Ethernet 10Base-T/100Base-TX Ethernet interface via standard RJ45 connector. IP address can be obtain automatically from DHCP server or set manually. Internet protocol version 4 is supported only.
WWW server
WWW Current values are available via embedded web server. Design of the web pages is can be changed according user requirements.
Email
Email Warning email are sent when measured value exceed selected limits. SMTP authentication is supported, but SSL not.
History export to CSV
CSV History values can be exported for next processing by the CSV file. CSV file can be processed inside spreadsheet application like Microsoft Excel or OpenOffice Calc. Two formats of CSV file are supported - dot and comma decimal point separators. Timestamps inside CSV file are shown when device time is synchronised by the SNTP server.
ModbusTCP protocol
Modbus Modbus protocol for communication with SCADA systems or third party software. Device use Modbus TCP protocol version.
SNMP protocol
SNMP SNMP version 1 protocol for IT infrastructure. Using SNMP protocol you can read actual measured values, alarm status and alarm parameters. Via SNMP protocol is also possible to get last 1000 measured values from history table. MIB tables with OID description are available.
SNMP Trap
Trap SNMP Trap for IT infrastructure. The device allows sending Traps to selected Trap receiver server. Traps are sent in case of alarm on channel or at error states.
SOAP protocol
SOAP The device allows to send currently measured values via SOAP v1.1 protocol. The device sends values in XML format to the web server. The advantage of this protocol is that communication is initialized by the device side. Due to it is not necessary use port forwarding.
Syslog protocol
Syslog Syslog protocol for IT infrastructure monitoring systems. The device allows sending text message to selected Syslog server. Messages are sent in case of alarm on channel or at error states.
SNTP protocol - time synchronization
SNTP Time synchronisation with SNTP server. Actual time is shown at web pages and is necessary for timestamps inside CSV files.

 

Technical Data

Technical parameters Value
Output Ethernet
Measured Value Temperature + Relative Humidity
Construction Type Compressed Air Humidity up to 2.5MPa
Design Industrial
Temperature Measuring Range -30 to 105 °C
Relay Output Yes
Two-State Input Yes
Lcd Display Yes
PoE No
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
Resolution 0.1°C, 0.1%RH
Measuring interval 2s
Available temperature units degrees Celsius, degrees Fahrenheit
Computed values dew point, absolute humidity, specific humidity, mixing ratio, specific enthalpy, humidex
Dew point temperature range -60 to +80 °C
Accuracy of dew point temperature output (for more details see instruction manual) ±1.5°C for dew point temperature +10°C and higher at ambient temperature +25°C
Accuracy of dew point temperature output ±2.0°C for dew point temperature 0°C at ambient temperature +25°C
Accuracy of dew point temperature output ±3.0°C for dew point temperature -10°C at ambient temperature +25°C
Accuracy of dew point temperature output ±6.0°C for dew point temperature -20°C at ambient temperature +25°C
Accuracy and range of absolute humidity output ±1.5g/m3 at ambient temperature T < 25°C
range 0 to 400g/m3
Accuracy and range of specific humidity output ±2g/kg at ambient temperature T < 35°C
range 0 to 550g/kg
Accuracy and range of mixing ratio output ±2g/kg at ambient temperature T < 35°C
range 0 to 995g/kg
Accuracy and range of specific enthalpy output ±3kJ/kg at ambient temperature T < 25°C
range: 0 to 995 kJ/kg
Temperature compensation of the humidity sensor all temperature range
Temperature operating range -30 to +80°C
IP protection IP40
Number of relay outputs 2
Maximum switching voltage, current and power of relay output 50V, 2A, 60VA
Number of binary inputs 3
Signal for binary inputs dry contact, open collector or two-state voltage signal.
Inputs are not galvanically isolated.
Minimum pulse length at binary input 500ms
Low voltage level 0 to +0.5V
High voltage level +3.0 to +30V
Audible alarm built-in beeper - switchable
LAN connection RJ-45 connector, 10Base-T or 100Base-TX
Communication protocols WWW, ModbusTCP, SNMPv1, SOAP, XML
Alarm protocols E-mail (SMTP authentication is supported), SNMP Trap, Syslog
Configuration WWW interface, T-Sensor
Temperature operating range of LCD display readable to operating temperature +70°C, it is recommended to switch OFF the LCD over +70°C
Filtering ability of sensor cover 0.025mm - filter with stainless steel mesh
Material of the probe duralumin with the black eloxal surface finish
Power 9 to 30Vdc, maximum consumption 1W
Power connector co-axial, diameter 5.5 x 2.1mm
Mechanical connection of probe G1/2 with O-Ring
Length of the probe cable 1m, 2m or 4m optionally
Dimensions 136 x 159 x 45mm (W x H x D), probe length 150mm, probe diameter 18mm
Weight approximately 460g - 1m probe
Warranty 3 years
Comet Database Comet Database
code: CDB
System for collecting, alarming and analysing of measured data from all COMET devices.
Database Viewer for Comet Database Database Viewer for Comet Database
code: DBV
Low cost browser Database Viewer enables several clients to view database from different places on network/internet.
H3530 - thermometer hygrometer with Ethernet interface and relays H3530 - thermometer hygrometer with Ethernet interface and relays
code: H3530
Ambient humidity, temperature Ethernet sensor with two relay outputs.
H3531R - rack mount thermometer hygrometer with Ethernet interface and relays H3531R - rack mount thermometer hygrometer with Ethernet interface and relays
code: H3531R
Humidity, temperature monitor with two relay outputs.
H7531 - thermometer hygrometer barometer with Ethernet interface and relays H7531 - thermometer hygrometer barometer with Ethernet interface and relays
code: H7531
Ambient temperature, relative humidity, atmospheric pressure with two relay outputs.
Web sensor T3511 - remote thermometer hygrometer with Ethernet interface Web sensor T3511 - remote thermometer hygrometer with Ethernet interface
code: T3511
Ambient temperature, relative humidity t-line Web sensor. Remote alarm.