Ptiezoresieisv Pressure t sransmitter s eries 21 Y for itsldnirua a PPnitso ical Technology: The Y-line transmitters have an extremely small temperature error. This is achieved using an additional circuit containing a temperature sensor that subdivides the tempe- rature range into fields that are 1,5 Kelvin (K) wide. The TK zero and TK compensation values are calculated for each field and programmed into the additional circuit. During operation, these values are fed into the analogue signal path depending on the temperature. Each temperature is the calibration temperature for this transmitter. The accuracy thereof is mainly determined by linearity. 120 fields are available, representing a possible temperature range of 180 K. The wider the temperature range, the greater the amount of testing that is needed to minimise the inaccu- racy of the mathematical model. Flexibility: The extent of the vertical range of manufacture, the modular design and the programmable electronics make it possible to manufacture large, customer-specific batches. The pressure sensors (insulated measuring cells) are manufactured in large quantities and kept in stock. These are then welded into the required transmitter head, equipped with electronics and calibrated over the entire temperature and pressure range in systems with up to 1000 mea- suring stations. mPm connectors, M12 connectors, Packard connectors and cable connections are used as standard for the electrical connection. In the relative pressure version, the ambient pressure is led into the interior via cable or connector. Outputs: A 2-wire (420 mA) or 3-wire version with voltage output is available as an output signal. For a ratiometric 0,5 to 4,5 V version, we refer to the KELLER Series 21 G product range. EMC: The 21 Y product line is outstanding due to its extreme ruggedness towards electromagnetic fields. The limits of the CE standard are undercut by a factor of up to 10 with conducted and radiated fields. These transmitters are also extremely immune to external vol - tages between the housing and the electrical connection, which is particularly important when frequency converters are being used. The high insulation voltage of 300 V make this product ideal for use in the harshest of environments. 7/16-20UNF G1/4 G1/8 7/16-20UNF Pressure HEX17 Connections HEX17 HEX19 HEX17 M12 Plug Packard Plug mPm Plug Electrical Connections Subject to alterations 07/08 KELLER AG fr Druckmesstechnik St. Gallerstrasse 119 CH-8404 Winterthur Tel. +41 (0)52 - 235 25 25 Fax +41 (0)52 - 235 25 00 KELLER Ges. fr Druckmesstechnik mbH Schwarzwaldstrasse 17 D-79798 Jestetten Tel. +49 (0)7745 - 9214 - 0 Fax +49 (0)7745 - 9214 - 60 Companies approved to ISO 9001:2000 www.keller-druck.comKELLER Specifications Pressure Ranges (all intermediate ranges possible) PR-21 Y 210 bar FS PAA-21 Y / PA-21 Y 21000 bar FS Overpressure 2 x pressure range, max. 1100 bar PAA: Absolute. Zero at vacuum PA: Sealed Gauge. Zero at 1000 mbar abs. PR: Vented Gauge. Zero at atmospheric pressure Accuracy 1) Linearity (best fitted straight line) typ. 0,25 %FS max. 0,5 %FS 2) Total Error Band 0...50 C max. 1,0 %FS -10...80 C max. 1,5 %FS 1) 2) including Hysteresis + Repeatability Linearity + Hysteresis + Repeatability + Temp. Coeff. + Zero + Span Tolerance Storage-/Operating Temperature -40100 C Stability PR-Version max. 0,5 %FS PAA/PA-Version max. 0,3 %FS Type 2-Wire 3-Wire 3-Wire Signal Output 4...20 mA 0...10 V 0,54,5 V Limitation Signal Output 3,2...22,3 mA -1,2...11,2 V 0,1...4,9 V Supply 8...32 VDC 13...32 VDC 8...32 VDC Load Resistance < (U-8 V) / 0,025 A > 5 k > 5 k Limiting Frequency 2 kHz 2 kHz 2 kHz Power Consumption max. 5 mA max. 4 mA Electrical Connection - Plug: M12 (4-pole), Packard, mPm - Cable Pressure Connection G1/4 male, G1/8 male, 7/16-20 UNF male and female Response Time (Supply ON) (099 %) < 5 ms Isolation > 10 M at 300 VDC EMC EN 61000-6-2: 2005 / EN 61000-6-3: 2007 / EN 61326-2-3: 2006 3 Dead Volume Change < 0,1 mm Material in Media Contact - Stainless Steel AISI 316L (1.4404/1.4435) - Viton Seal external (no internal seals) Protection Class M12-/Packard-Plug: IP67 (with corresponding mating plug) mPm-Plug: IP65 (with corresponding mating plug) Cable: IP54 Weight 38 g (G1/8) 50 g (G1/4) Endurance > 10 million cycles, 0100 %FS at 25 C Oil Filling Silicone oil Options Temperature Range Other temperature ranges on request. Maximal range: -40+120 C Oil Filling Fluorocarbon oil (O -compatible), olive-oil, lowest temperature oil (-55 C) 2 Pressure Connection, Electr.ical Connection Others on request Subject to alterations 07/08 KELLER AG fr Druckmesstechnik St. Gallerstrasse 119 CH-8404 Winterthur Tel. +41 (0)52 - 235 25 25 Fax +41 (0)52 - 235 25 00 KELLER Ges. fr Druckmesstechnik mbH Schwarzwaldstrasse 17 D-79798 Jestetten Tel. +49 (0)7745 - 9214 - 0 Fax +49 (0)7745 - 9214 - 60 Companies approved to ISO 9001:2000 www.keller-druck.com