Differential Pressure Transmitter DMD 331

The DMD 341 is a differential pressure transmitter for non-aggressive gases and compressed air. Because of its compact and robust aluminium housing it is suited for machine and plant engineering. Basic element is a piezoresistive stainless steel silicon sensor, which features high accuracy and excellent long term stability. In combination with our display and switching unit ASM 430 the user has a 4-digit LED-display for representing the differential pressure as well as up to 2 freely configurable contacts. Features: — differential pressure 0 ... 6 mbar up to 0 ... 1000 mbar — accuracy: 0.35% / 1% / 2% FSO — piezoresistive silicon sensor — compact and robust aluminium housing — suited for non-aggressive gases and compressed air — current and voltage output signals in 2- and 3-wire systems Optional Features: — display and switching module with up to 2 contacts — customer specific versions

Features: — differential pressure 0 ... 6 mbar up to 0 ... 1.000 mbar — accuracy: 1 % FSO — piezoresistive pressure sensor

The pressure transmitter DPS 300 was developed for the differential pressure measuring for dry, non aggressive gases and compressed air and can be used for several HVAC applications. The DPS 300 is a multi range transmitter with up to three adjustable ranges. The device is equipped with a two-line LC display optionally and can simply parameterised. Values, status of the contact and the unit are shown on the display. Features: — differential pressure 0 ... 1.6 mbar up to 0 ... 1.000 mbar — accuracy: 0.5 % FSO BFSL — current and voltage output signals in 2- and 3-wire systems — adjustable ranges — adjustable damping Optional Features: — LC-display, two-line — automatic zero adjustment — contacts (only in combination with display) — square root extraction (only in combination with display)

The differential pressure transmitter DPT 100 has been especially designed for fast test processes in leakage and flow measurement, where a fast response time and high sampling rate are necessary. The compact design of the DPT 100 facilitates the use in standardised applications, e. g., and the installation in 19“ Rack. The DPT 100 with optionally RS485 interface uses the communication protocol Modbus RTU which has found the way in industrial communication as an open protocol. The Modbus protocol is based on a master Slave architecture with which up to 247 Slaves can be questioned by a master – the data will transfer in binary form. Features: — differential pressure from 10 mbar up to 20 bar — static pressure max. 400 bar — accuracy: 0.1 % FSO — output signal 4 ... 20mA / 2-wire — aluminium housing, die casting Optional Features: — output signal RS485 with Modbus RTU protocol — several process connections