COMET SYSTEM, s.r.o.H3531P compressed-air temperature and humidity sensor with alarms and Ethernet interface
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code: H3531P Compressed-air humidity, temperature transmitter with two relay outputs. T+RH probe from hard anodized duralumin for compressed air up to 25 bars with 1m cable. Cable lengths 2m or 4m available optionally. Relative humidity, temperature probe on a cable. Measured values are also converted to other humidity interpretation: dew point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy. Three two-state inputs.
Included in delivery:
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Features
Humidistat is designed for two-state control of e.g. heating, ventilation, humidifier, dehumidifier, etc.
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.
Measured temperature and relative humidity is recalculated to other humidity interpretations - dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy.
Parameters are easy adjustable from regulator keyboard or from the computer. Large dual line LCD for simultaneous display of temperature, relative humidity or other calculated humidity interpretation is an advantage.
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 also equipped with three binary inputs for detection of two-state events - e.g. water, smoke, glass break detection, door contact.
Easy creation of online data acquisition system from Ethernet sensors by using new low cost database software Comet
- see also Optional Accessories.
HUMIDISTAT APPLICATIONS
- temperature and humidity control
- monitoring of temperature, humidity:
- building management and automation
- server rooms
- telecommunication devices
- warehouses, glasshouses
- manufacturers
- museums, archives, galleries
- air-conditioned rooms, HVAC
- weather stations
| MODES OF COMMUNICATION | |
|---|---|
| Modbus TCP: | Modbus TCP protocol enables to read measured values, 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. User can design the look of www pages and temperature, humidity, pressure + computed values history. |
| SNMP: | It is possible to read actual values and alarm limits. 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. 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 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 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.
For acquiring values from several transmitters, also third party software is possible to use. Tested functionality is with programs:
LabVIEW from National Instruments, by means of the free Modbus Library for LabVIEW.
TIRS.NET - transmitters are also directly supported by program TIRS.NET from Coral s.r.o. company. Please download demo enabling full work with transmitters.
Tested functionality is also with program ControlWeb
Figure: Relative humidity operating range
Figure: Accuracy of dew-point measurement
Technical Data
| Technical parameters | Value |
|---|---|
| Output | Ethernet |
| Measured Value | Relative Humidity + Temperature |
| 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 |
| 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 |
| Accuracy and range of dew point temperature output - for more details see graphs in manual | ±1.5°C at ambient temperature T<25°C and RH>30% range -60 to +80°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 |
| Alarm protocols | E-mail (SMTP authentication is supported), SNMP Trap, Syslog |
| Configuration | T-Sensor, Telnet, keyboard |
| 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 | 2 years |
| size | |
|---|---|
 Instruction Manual |
2.1 MB |
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Quick Start Manual |
800 kB |
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Datasheet |
1.5 MB |
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Declaration of Conformity |
30 kB |
 MIB tables |
250 kB |
| Program TSensor - free configuration program for transmitters and transducers, Code: TSensor | more » |
|---|---|
 TSensor - free configuration program version 3.0.5.0 |
2.6 MB |
 TSensor - revision history |
8 kB |
| Program SensorReader - free program for data read and store from one sensor, Code: SensorRead | more » |
|---|---|
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SensorReader - free program for data recording from one sensor, version 2.0.1.0 |
1.3 MB |
| DBS Sensor Monitor - database program for data acquisition from Ethernet sensors P8xxx, Tx5xx, Hx5xx, Code: DBS | more » |
|---|---|
|
DBS Database Sensor Monitor version 2.3.0.1_II |
55.2 MB |
| DBV Database Viewer for database programs DBL, DBM, DBS, Code: DBV | more » |
|---|---|
|
DBV Database Viewer 2.3.0.1 |
22.8 MB |
Optional accessories
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DBS Sensor Monitor - database program for data acquisition from Ethernet sensors P8xxx, Tx5xx, Hx5xx
code: DBS
Online monitoring system with sensors connected to Ethernet |
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DBV Database Viewer for database programs DBL, DBM, DBS
code: DBV
Low cost browser DBV Database Viewer enables several clients to view database from different places on network/internet. |
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H3530 temperature and humidity web sensor with alarms and Ethernet interface
code: H3530
Ambient humidity, temperature web transmitter with two relay outputs. |
|
H3531R temperature and humidity rack mount monitor
code: H3531R
Humidity, temperature monitor with two relay outputs. |
Photogallery
