PS
Mechanical differential pressure switches for air
The PS series mechanical differential pressure switches offer a cost effective solution for filter, fan and duct pressure monitoring in building automation systems in the HVAC/R industry. PS series products offer field selectable switching point adjustment.
محصولات مرتبط
DPT-IO-MOD
Differential pressure transmitter with Modbus communication and Input terminal
The DPT-IO-MOD differential pressure transmitter for air conforms to Modbus over serial line protocol using RTU transmission mode and RS485 interface. The digital output signal is sent over Modbus enabling the DPT-IO-MOD to connect directly to a field communications network.
DPT-IO-MOD requires less wiring than the traditional 3-wire transmitters since multiple devices can be connected on serial line.
The DPT-IO-MOD includes an Input terminal that enables reading of multiple other signals such as temperature or control relays over Modbus. The Input terminal has two input channels designed to accept 0−10 V, NTC10k, Pt1000, Ni1000/(-LG), and BIN IN (potential free contact) signals. For example, DPT-IO-MOD can read values from one differential pressure measurement point and two temperature measurement points. Hence, the DPT-IO-MOD does the work of three transmitters.
DPT-CTRL
DPT-Ctrl is a multifunctional PID controller with differential pressure or air flow transmitter.
DPT-Ctrl enables to control constant pressure or flow of fans, VAV systems or dampers. Its two lined display shows the direction of the control output and the measurement value at the same time. It is possible to select either current or voltage for both the control output and the differential pressure or flow output. The optional autozero function eliminates the need for periodic manual zero point calibration.
DPT-Dual
Field adjustable, multi-range differential pressure transmitters with two pressure sensors for air
DPT-Dual series differential pressure transmitters are engineered for building automation in the HVAC/R industry. DPT-Dual is a technologically advanced transmitter measuring static and differential pressure from two different points, with field selectable units, range and output, all in a single device.
DPT-Dual series devices include:
• Multiple measurement units, field selectable via jumper, including: inWC, mmWC, Pa, mbar. • 8 field selectable measurement ranges, unidirectional or bi-directional, selectable via jumper.
CDT-MOD-2000
Multifunctional CO2 transmitters for building automation systems that use Modbus serial communication protocol
CDT series air quality transmitters are engineered for building automation systems in the HVAC/R industry. The CDT series measures carbon dioxide (CO2) utilizing the industry standard NDIR measurement principle, and temperature (T). Optional relative humidity (rH) measurement is also available in the same device. CDT series devices are available with large touchscreen display making configuration of the device quick and easy. Configuration is also possible via Modbus network.
The CDT-MOD-2000 series transmitters calibrate themselves automatically using ABC logicTM. The ABC logicTM requires that the space in which the transmitter is used needs to to be unoccupied for four hours per day so that the indoor CO2 concentration drops to the outside level. CDT-MOD-2000-DC is a dual channel model with a measuring channel and a reference channel that makes a continuous comparison and the necessary adjustment accordingly. CDT-MOD-2000-DC is also suitable for buildings that are continuously occupied.
CDT-MOD-2000 series devices include:
• Separate field configurable Modbus output for each measurement parameter (CO2, rH, T)
• Offset feature enabling field calibration for each measurement parameter (CO2, rH, T)
• One analog output for selected measurement: voltage (0/2–10 V) or current (4–20 mA)
• 2″ x 3″ touchscreen display
• Time extension button that enables boosting ventilation manually using the touchscreen display
• Optional relay output
RHT DUCT
Humidity transmitters with temperature output for duct
RHT Duct is a relative humidity transmitter with temperature output installed in air ventilation duct. In addition to these measured values, RHT Duct calculates various parameters such as dew point, mixing ratio, enthalpy and absolute humidity. Illuminated display ensures easy readability also from a distance. The RHT has a screwless lid and an easily adjustable mounting flange that make the installation of the device easy.
RHT Duct series devices include:
• Two selectable voltage outputs (0-10 V / 2-10 V / 0-5 V) for measured and calculated parameters (rH, T, dew point, mixing ratio, enthalpy and absolute humidity).
• Offset feature enabling field calibration for measurement parameters rH and T.
• Mounting flange
RHT Duct series device options offer:
• Clear backlit display
• Modbus RTU interface
• 4-20 mA proportional output
DPI
Electronic differential pressure switch and transmitter
The DPI series electronic pressure measuring devices are engineered for building automation in HVAC/R industry. The most technologically advanced and versatile electronic differential pressure switches on the market, combining up to two relay outputs and 0–10 V output options.
The DPI includes the following field selectable features: • Configurable switching point: Open on rise or fall in pressure • Hysteresis of setpoint • Measurement units (Pa, kPa, mmWC, inWC, mbar) • Measurement range (4 ranges per model) • Output signal (0−10 V, NO/NC) • Span and zero point calibration
DPT-DUAL-MOD
Field adjustable differential pressure transmitter with two pressure sensors for air and an Input terminal for two analog inputs for external signal conversion into Modbus.
DPT-Dual-MOD combines two differential pressure transmitters into one device. It offers a possibility to measure pressure from two different points. It has a Modbus interface and an Input terminal. When using the Input terminal, temperature transmitters can be replaced with temperature sensors. As a result you will save in costs of the devices and in the installation costs. The AHU model that includes an air flow transmitter has been designed especially for ventilation units.
DPT-Dual-MOD series devices include: • Multiple measurement units, field selectable via menu, including: Pa, mbar, inchWC, mmWC and psi. • Input terminal enabling reading of multiple other signals such as temperature or control relays over Modbus
AVT
The AVT is an electronic air velocity and temperature transmitter for air and non-combustible gases with optional relay output.
AVT series air velocity transmitters are engineered for building automation in the HVAC/R industry. The AVT measures air velocity and temperature, with field selectable range and output options in a single device. Designed with a duct mount probe and adjustable collar suitable for round or rectangular ducts.
AVT series devices include: • 3 field selectable measurement ranges for air velocity, selectable via jumper. • Separate readings and outputs for air velocity and temperature. • Proportional output options include: voltage (0–10 V) and current (4–20 mA).
AVT series device options offer: • Display • Field adjustable relay
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