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Pressure switches Electronic pressure switches / pressure transmitters PST, PST…-R / Smart Press 7 Product Summary PST = Pressure Switch + Transmitter PST…R = Pressure Switch + Transmitter + Relay 01 = –1…+1 bar 002 = 0–1.6 bar 004 = 0–4 bar 010 = 0–10 bar 025 = 0–25 bar 060 = 0–60 bar 100 = 0–100 bar 250 = 0–250 bar 600 = 0–600 bar 250 = 0–250 mbar 400 = 0–400 mbar 600 = 0–600 mbar 001 = 0–1000 mbar G12S G34F = G 1/2‘‘ Standard pressure gauge version = G 3/4” quasi-flush version PST V 01 R G34F -R V M = Vacuum version = Millibar version R A = Relative pressure sensor = Absolute pressure sensor R = Relay output of electrically isolated changeover contact Ordering data Smart Press with 2 electronic switching channels + transmitteroutput Order no. Pressure in bar PSTM250RG12S 0…250 mbar PSTM400RG12S 0…400 mbar PSTM600RG12S 0…600 mbar PSTV01RG12S –1…+1 PST001RG12S 0…1 PST002RG12S 0…1.6 PST004RG12S 0…4 PST010RG12S 0…10 PST025RG12S 0…25 PST060RG12S 0…60 PST100RG12S 0…100 PST250RG12S 0…250 PST600RG12S 0…600 PSTM250RG34F 0…250 mbar PSTM400RG34F 0…400 mbar PSTM600RG34F 0…600 mbar PSTV01RG34F –1…+1 PST001RG34F 0…1 PST002RG34F 0…1.6 PST004RG34F 0…4 PST010RG34F 0…10 PST025RG34F 0…25 Smart Press with 2 electronic switching channels + transmitteroutput and relay output Order no. Pressure in bar PSTM250RG12S-R 0…250 mbar PSTM400RG12S-R 0…400 mbar PSTM600RG12S-R 0…600 mbar PSTV01RG12S-R –1…+1 PST001RG12S-R 0…1 PST002RG12S-R 0…1.6 PST004RG12S-R 0…4 PST010RG12S-R 0…10 PST025RG12S-R 0…25 PST060RG12S-R 0…60 PST100RG12S-R 0…100 PST250RG12S-R 0…250 PST600RG12S-R 0…600 PSTM250RG34F-R 0…250 mbar PSTM400RG34F-R 0…400 mbar PSTM600RG34F-R 0…600 mbar PSTV01RG34F-R –1…+1 PST001RG34F-R 0…1 PST002RG34F-R 0…1.6 PST004RG34F-R 0…4 PST010RG34F-R 0…10 PST025RG34F-R 0…25 Max. Bursting Dimensioned permissible pressure drawing pressure in bar Page Fig. in bar 1 > = 1.6 2 > = 3.2 2 > = 3.2 6 > = 10 6 > = 10 6 > = 10 16 30+31 12 > = 20 30 > = 50 75 > = 125 180 > = 300 300 > = 500 500 > = 1600 1000 > = 1800 16 32+33 1 > = 1.6 2 > = 3.2 2 > = 3.2 6 > = 10 6 > = 10 17 34+35 6 > = 10 12 > = 20 30 > = 50 75 > = 125 PST002AG12S 0…2 PST010AG12S 0…10 PST002AG12S-R 0…2 PST010AG12S-R 0…10 6 > = 10 30 > = 50 16 30+31 PST002AG34F 0…2 PST010AG34F 0…10 PST002AG34F-R 0…2 PST010AG34F-R 0…10 6 > = 10 30 > = 50 17 32+33
8 Pressure switches Electronic pressure switches / pressure transmitters PST, PST…-R / Smart Press Definitions e.g. 3.5 bar Maximum pressure monitoring Pressure Maximum pressure monitoring If an output is configured as a maximum detector, the electronic pressure switch monitors a programmed upper pressure limit. A switching process is triggered as soon as the pressure exceeds this limit. e.g. 3.0 bar = active = inactive Time Minimum pressure monitoring If an output is configured as a minimum detector, the electronic pressure switch monitors a programmed lower pressure limit. A switching process is triggered as soon as the pressure falls below this limit. Minimum pressure monitoring Pressure e.g. 1.0 bar e.g. 0.5 bar = active Window monitoring If an output is configured for pressure window monitoring, the electronic pressure switch monitors a programmed pressure window, i.e. the range between a defined lower limit and a defined upper limit. A switching process is triggered as soon as the pressure falls below the lower pressure limit or exceeds the upper pressure limit. Electronic pressure switch PST and PST…-R series electronic pressure switches consist of an electronic, piezoresistive pressure sensor and a downstream analyser with 2 independently programmable switching channels, an analogue output and an optionally configurable relay output. = inactive Window monitoring Time Switching differential In contrast to mechanical pressure switches, where the switching differential is essentially determined by the design, with electronic pressure switches any switching differential may be chosen. The difference between the switching point and the reset point (the switching differential) is defined at user level by entering and saving the switching and reset points via the software. The smallest definable switching differential corresponds to the display resolution. Switching point and reset point Any switching point (SP) and reset point (RP) across the entire nominal pressure range of the electronic pressure switch can be selected at user level via the software. Switching point deviation Illegal settings are automatically detected by the software. The value most recently set has priority over the value first set. If the electronic pressure switch is configured as a maximum detector, for example, the switching point (SP) must lie above the reset point (RP). If the reset point is above the switching point, or the switching point is below the reset point, no error will be displayed, but the switching points will be shifted accordingly until they are finally saved. Time Out function “Time Out” refers to the time window in which values can be entered without the display automatically reverting to pressure display mode. For all settings at user level the setting window is 1 minute. This means that if the user does not enter anything for one minute during the setting process, the unit automatically reverts to display mode and shows the current pressure in the display, disregarding any values that have been entered but not saved. However, when the unit is in setting mode at expert level, this “Time Out” function is turned off. In other words, the display (and thus the unit) remain in setting mode until the settings are saved in expert mode.
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Pressure

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