H7331 temperature, humidity, pressure regulator with two relay and RS232 outputs
code: H7331Humidity, temperature, atmospheric pressure transmitter with two relay outputs. Outdoor, indoor use.
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. Built-in pressure sensor. Three two-state inputs.
Included in delivery:
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.
- temperature and humidity control
- monitoring of temperature, humidity:
- building management and automation
- server rooms
- telecommunication devices
- warehouses, glasshouses
- museums, archives, galleries
- air-conditioned rooms, HVAC
- weather stations
Serial output RS232 - transmitter works with ModBus RTU communication protocol or with Advantech ADAM compatible protocol. Protocol is user selectable in special configuration mode by means of the PC. Serial link enables to read actual readings and modify transmitter configuration. Instrument works always in slave mode, i.e. responds only to master device query. Transmitters have the address space available from 1 to 255. Communication speed is 110 to 115200Bd.
Figure: Relative humidity operating range
|Measured Value||Relative Humidity + Temperature + Atmospheric pressure|
|Construction Type||With T+RH Probe On Cable|
|Temperature Measuring Range||-30 to +105°C|
|Maximum switching voltage, current, power of relay output||50V, 2A, 60VA|
|Audible alarm||from built-in beeper - switchable|
|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||±1.5g/m3 at ambient temperature T < 25°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
|Maximum measuring pressure range||600 to 1100hPa|
|Accuracy||±(1,3hPa+0.06% from adjusted output span) at 23°C from 800 to 1100hPa|
|Available pressure units||hPa, kPa, mbar, mmHg, inHg, inH2O, PSI, oz/in2|
|Signal for binary inputs||dry contact, open collector or two-state voltage signal.
Inputs are not galvanically isolated.
|Minimum pulse length at binary input||500 ms|
|Voltage at open contact||3.3 V|
|Low voltage level||0 to +0.5 V|
|High voltage level||+3.0 to +30V|
|Temperature operating range||-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|
|Temperature compensation of the humidity sensor||all temperature range|
|Filtering ability of sensor cover||0.025mm - filter with stainless steel mesh|
|Communication protocol||ModBus RTU and Advantech ADAM compatible protocol|
|Communication speed||110 to 115200 Bd|
|IP protection||IP54 electronics, IP40 sensors|
|Power||9-30Vdc, power consumption approximately 1W|
|Length of the probe cable||1m, 2m or 4m optionally|
|Dimensions||136 x 159 x 45 mm (W x H x D), probe length 88 mm, probe diameter 18mm|
|Instruction Manual||1.9 MB|
|Quick Start Manual||700 kB|
|Declaration of Conformity||30 kB|
|Description of communication protocols||420 kB|
|Software for COMET Sensors with RS485/RS232 output, Code: RSensors||more »|
|Sensor RS485/232 version 22.214.171.124||2 MB|
|TSensor - free configuration program version 126.96.36.199||2.6 MB|
|TSensor - free configuration program - revision history||10 kB|
|SensorReader - free program for data recording from one sensor, version 188.8.131.52||1.3 MB|
|SensorReader - free program for data recording from one sensor - history of changes||1 kB|
|USB adapter driver||2.7 MB|
|Sensor RS485/232 utility, Code: RSU||more »|
|Sensor RS485/232 utility version 184.108.40.206||2 MB|
|Comet Database, Code: CDB||more »|
|Comet Database - version 10.0.10.0-II||29.7 MB|
|Comet Database - changes log||5 kB|
|Comet Database - main Manual||3 MB|
|Comet Database - Quick Start for Web Sensors||7 kB|
|Comet Database - Quick Start for Monitoring Systems||8 kB|
|Comet Database - Quick Start for Dataloggers||7 kB|
|Comet Database - How to upgrade database||10 kB|
|Database Viewer for Comet Database, Code: DBV||more »|
|Comet Database Viewer version 220.127.116.11||23.1 MB|
|Comet Database Viewer changes log||2 kB|
|H7431 temperature, humidity, pressure regulator with two relay and RS485 outputs
code: H7431Humidity, temperature, atmospheric pressure transmitter with two relay outputs. Outdoor, indoor use.