Duct humidity and temperature sensors
with integrated pressure and differential pressure measuring transducer
PREMASGARD® 814x - Modbus

PREMASGARD® 814x - Modbus

Maintenance-free microprocessor-controlled PREMASGARD® 814x - Modbus (Series) with Modbus connection, in an impact-resistant plastic housing with quick-locking screws, optionally with/ without display, with a plastic sinter filter (exchangeable), to exactly detect the relative humidity (0…100% r.H.) and the temperature (–35...+80 °C) in ducts and to measure the differential pressure (max. –7000...7000 Pa) in air. Incl. mounting flange and connection set ASD-06 (2m connecting hose, two pressure port nipples, screws).

The pressure sensor is applied to measure positive, negative or differential pressure in clean air and gaseous media. It is used in the clean room, medical and filter technology, ventilation and air conditioning ducts, spray booths, large-scale catering facilities, for filter monitoring and level measurement or for triggering frequency converters.

A long-term stable, digital humidity and temperature sensor and a pressure sensor with piezoresistive measuring element guarantee exact measurement results. These measurands are used to internally calculate the following parameters that can be retrieved via Modbus: temperature [°C], relative humidity [% r. H.], dew point [°C], absolute humidity [g/m³], mixture ratio [g/ kg], enthalpy [kJ⁄ kg] (ignoring atmospheric air pressure), differential pressure [Pa], volume flow [m3/h], air density [kg/m3].

Innovative Modbus sensor with galvanically separated RS485-Modbus-interface, selectable bus termination resistance, DIP switch for setting the bus parameters and bus address in current-free state, LEDs for telegram status display, two separate push-in terminals and large three-line display (illuminated; with customised programming in the 7-segment and dot-matrix range). The sensor is factory-calibrated; an environmental precision adjustment by an expert is possible.

Humidity: 0...100 % r. H.
Temperature: –35...+80 °C
Output: Modbus

Type Kommunikation Equipment Display Measuring range, pressure 1. Temperature range Arbeitsdruck PN max. Buttons Cable connection Colour Control Function Housing Colour Housing_material Kommunikation Measuring range relative humidity Messbereiche CO2 Movement Output Output type Printing Prozessanschluß (SW) Rod length Rohr Ø DN Schutzart(Filter) Sensor-Toleranz Feuchte Sleeve length Temperature-measuring range for insertion length Channels Sensor VOC measuring range Free cable length Housing name Cable material Measuring range pressure Item No. Price
PREMASGARD 8148-Modbus ±500 Pa 1301-8144-0910-20V 455,30 €
PREMASGARD 8147-Modbus ±7000 Pa 1301-8144-0950-200 402,52 €
PREMASGARD 8148-Modbus LCD ±500 Pa 1301-8144-4910-20V 497,22 €
PREMASGARD 8147-Modbus LCD ±7000 Pa 1301-8144-4950-200 444,96 €