Applications

• HVAC supply or extract air measuring
• Monitoring filters and controlling fans
• Check air flow
• Measuring very low differential pressures
• Clean room applications

Features

• Maintenance free piezoresistive silicon ceramic sensor
• High accuracy up to ±0.25 %FSS
• Operating voltage AC 24 V or DC 14…35 V
• Calibrated and temperature compensated measuring
• Fixed or field selectable output types
• Simple and fast mounting
• LCD display, 2×12 character
• 2 universal input
• Modbus – RS485 port
• Relay output

Applications

• HVAC supply or extract air measuring
• Clean room monitoring and control etc

Features

• Air Velocity accuracy ±2%
• Temperature accuracy 0.3°C
• Operating voltage AC 24 V or DC 14.6…34 V
• Air Velocity output signal DC 0…10 V or 4-20 mA
• Temperature output signal DC 0…10 V or PT1000
• Simple and fast mounting
• Fixed or field selectable output types
• LCD Display
• 2 universal input
• Modbus – RS485 port
• Relay output

Applications

• HVAC supply or extract air measuring
• Clean room monitoring and control
• Humidifier control
• Dew point measuring
• Pool, ouse, Hencoop etcGreenh

Features

• Maintenance free microchip sensor
• Humidity accuracy ±2% rH or ±3% rH
• Temperature accuracy 0.3°C
• Operating voltage AC 24 V or DC 14…35 V
• Calibrated and temperature compensated measuring
• Fixed or field selectable output types
• Simple and fast mounting
• LCD display, 2×12 character
• 2 universal input
• Modbus – RS485 port
• Relay output

Applications

• Vehicle exhaust measuring at garages, auto parks
• Early fire detection
• Air quality applications: measuring CO concentrations as of odors; tobacco smoke, body odor, or material fumes in cinema/theatre halls, exhibition halls, restaurants, canteens, shopping malls and conference rooms etc

Features

• Maintenance free compact MEMS sensor
• CO ranges: 100ppm, 300ppm and 1.000ppm
• Operating voltage AC 24 V or DC 14…35 V
• CO output signal 0…10 Vdc, 0…5 Vdc and 4-20 mA
• Fixed or field selectable output types
• Simple and fast mounting
• 2 universal input
• Modbus – RS485 port
• Relay output

STx Series Temperature Sensors and Transmitters are especially used for HVAC Systems as supply or extract air temperature sensors. The device can be used as limit, reference, or measuring sensor. The basic advantages are easy mounting, high protection class‐IP67, screwless electrical connector. There are many types of thermistors and RTD’s such as PT100, PT1000, NTC10k, NTC20k, NTC3k, NTC1,8k. Also transmitters have 4‐20mA, 0‐5V, 1‐5V, 0‐10V and 2‐10V outputs.

• Maintenance free PT and NTC sensing elements
• 0…10 V output with AC 24 V or DC 13.6…34 V power supply
• 4-20 mA, 2-wired output with DC 13.6…34 V power supply
• Simple and fast mounting
• Screwless cover and electrical terminals
• 3 Segment display option

Electrical
Power Supply : AC 24V (± %5), 50-60 Hz or DC 13.6…34 V
Power Consumption : max. 1.5 W

Outputs
NTC or PT Types: check the RT tables
current: 4…20 mA, maximum 500 ohm
voltage: 0…10V DC, minimum 1.000 ohm

Accuracy
NTC: 0.5°C around 25°C
PT: 0.3°C around 0°C
0-10 V: 0.3°C between 0°C…50°C
4-20 mA: 0.3°C between 0°C…100°C

General Data
Sensing Element : NTC or PT
Operating Temperature NTC: -40 …+125°C
Operating Temperature NTC: -50 …+250°C
Storage Temperature : -30 …+85°C

Ranges
0-10 V: Set at the factory upon customer’s request
4-20 mA: Set at the factory upon customer’s request

Connections
Terminals : Spring clamp terminal
Cable : maximum 2.5 mm2
Cable Gland : M16 or PG9

Protection
IP class : IP 65
NEMA class : 4

Standards
EMC Directive : EN 61326-1
CE Conformity : 0616CE.01

Dimensions
Housing : 69.0 x 40.0 x 30.0 mm
Probe Duct: 6 (diameter) x 200 (lenght) mm
Probe Immersion: 6 (diameter) x 100 (lenght) mm
Weight Packed : 87 gr