Specification of Comet H3531 Thermometer Hygrometer - Temperature and Humidity Sensor
Comet H3531 Thermometer Hygrometer, Temperature and Humidity Sensor
Temperature, Humidity Sensor, 2 x Relay output, Ethernet interface, cable 1 m
Designed for online monitoring of temperature in °C or °F
Barometric pressure and three binary inputs for detection of binary signals
Equipped with two relay outputs for alarming or controlling of external devices
Dew point and computed quantities
SNTP protocol - time synchronization
History export to CSV
Output Ethernet
Measured Value Temperature + Relative Humidity
Construction Type With T+RH Probe on Cable
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
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 995kJ/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 at binary input 0 to +0.5V
High voltage level at binary input +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
Power 9 to 30Vdc, maximum consumption 1W
Power connector co-axial, diameter 5.5 x 2.1mm
Length of the probe cable 1m, 2m or 4m optionally
Dimensions 136 x 159 x 45mm (W x H x D), probe length 88mm, probe diameter 18mm
Weight approximately 410g - 1m probe