LEX 1 Ei. II 2 G EEx ia II C T6 PTB 05 ATEX 2012 X. Highly Precise, Intrinsically Safe Digital Manometer for use in Hazardous Applications.

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1 LEX 1 Ei Highly Precise, Intrinsically Safe Digital Manometer for use in Hazardous Applications. Actual Value Max.- / Min.-Value SELECT ENTER Max. / Min. G1/4 Marking: II 2 G EEx ia II C T6 PTB 05 ATEX 2012 X 02 / 2005

2 Description and Application Highl precise, intrinsically safe manometer for use in hazardous environments. The technical data of the digital manometer can be taken from the corresponding data sheet or from the agreed specifications. Inbetriebnahme und Funktionen LEX 1 Ei has two operating keys. The left key (SELECT) serves to select the functions and the pressure units. The right key (ENTER) activates the selected function or pressure unit. The right key is also used to switch between the Max.- and Min.-value. Turn-on: Pressing the SELECT key turns the instrument on. The instrument first displays the software version (year/week) and the fullscale pressure range. The instrument is then ready for use and indicates the actual pressure (top display) and the last measured Max.- value (bottom display). The instrument has the following functions: RESET: Max.-/Min.-value are set to the actual pressure OFF: Turns off the instrument MANO: Releases the following functions: ZERO SEt: Sets a new Zero reference ZERO res: Sets the Zero to factory setting CONT on: Deactivates the automatic turn-off function CONT off: Activates the automatic turn-off function (the instrument turns off 15 minutes after the last key function) followed by the unit selection: bar, mbar, hpa, kpa, MPa, PSI, kp/cm 2, cmh 2 O, mh 2 O, inh 2 O, fth 2 O, mmhg, inhg - 2 -

3 Example: Setting a new pressure unit (mbar): --> Turn on the instrument by shortly pressing the SELECT-key. --> Wait for the instrument s measuring mode (approx. 3 seconds). --> Press the SELECT-key 3 times: MANO appears. --> Press ENTER: ZERO SEt appears. --> Press SELECT: ZERO res appears. --> Press SELECT: CONT on or CONT off appears. --> Press SELECT: bar appears. --> Press SELECT: mbar appears. --> Press ENTER: The new pressure unit (mbar) is set. The instrument returns to the measuring mode. Display of the minimum pressure value When in the measuring mode (Display: Actual Pressure and Max.- value), you may display the Min.-value for 5 seconds by shortly pressing the ENTER-key. Notes The functions and units can also be called up by keeping the SELECT-key depressed. Releasing the key enables the displayed function or unit to be activated with the ENTER-key. If the selected function or unit is not activated within 5 seconds with the ENTER-key, LEX 1 Ei returns to the measuring mode without changing any settings. Turning LEX 1 Ei on and off does not influence any of the previous settings. If the CONT on function is activated, it is indicated with a flashing sign (cont) on the display. If a pressure can not be represented on the display, OFL (overflow) or UFL (underflow) appears on the display. If the actual pressure goes beyond the measuring range, the last valid pressure value starts flashing on the display

4 Max./Min. swiss made r-druck.ch Max./Min. KELLER Installation Screw the G1/4 male port of LEX 1 Ei into the female pressure port and tighten using the lower hexagon of the transducer. Loosen the upper hexagon and rotate the LEX 1 Ei to the desired position. Retighten. S E L E C T E N T E R S E L E C T swiss made KELLER E N T E R The face of LEX 1 Ei can be rotated through 355. This feature allows the manometer to be mounted in all possible positions; vertical, horizontal or upside down. Battery Change / Battery Life When the battery starts weakening, a low battery warning will appear (BAT LOW). Battery change: Please turn off the instrument before changing the battery. Open the instrument by turning the display ring beyond the limit stop. Disconnect the battery. Remove weak battery and insert new one. Close the instrument, making sure that the O- ring remains embedded in the cover. The battery life is 2000 hours in normal measuring mode. The following battery type must be used in explosive atmospheres: 3 V Lithium battery, Renata CR Ranges / Calibration The factory setting of the Zero for the ranges 31 bar is at 0 bar absolute. For sealed gauge pressure measurements, activate ZERO SEt at ambient pressure. Instruments with ranges >31 bar are calibrated in a sealed gauge mode at ambient pressure

5 Interface (RS485) The interface is located at the rear of the manometer. If the manometer is connected to a PC via interface converter K103A (RS232) or K104A (USB), the actual data can be transferred. The corresponding software (Logger 4.x) can be found on our website. The connection for the RS 485 interface may only be used outside the zone with a potentially explosive atmosphere. General Safety Instructions When installing and operating the digital manometer, attention should be paid to the corresponding national safety regulations and to the relative country regulations concerning the Ex-application. Only mount the digital manometer onto unpressurized systems. On pressure ranges > 30 bar, the pressure connections could show residual hydraulic oil. Please note that temperatures outside of 0 60 C could impair the readability of the display. Special Conditions for Safe Use The digital manometer LEX 1 Ei is an intrinsically safe apparatus ; it can be mounted in explosive atmospheres. The operating ambient temperature are included between -10 C and +65 C. The connection at the rear for the RS 485 interface may only be used outside the zone with a potentially explosive atmosphere. Due to the internal capacitances only a safe maximum voltage of Um = 5,7 V may be applied. The permissible capacitance for Ui = 5,7 V according to EN 50020:2002, Table A.2 is Ci = 50 μf. This guarantees that the capacitance limit for the basic voltage level is not exceeded on reintroducing the equipment to the hazardous zone

6 Declaration of Conformity Herewith we declare, that the following products Intrinsically Safe Digital Manometer LEX 1 Ei meet the basic requirements, which are established in the guidelines of the European Community: Directive EMC 89/336/EEC Directive ATEX 94/9/CE As criteria, the following norms for this manometer are applied EN / -6-2 (2001) EN / -6-4 (2001) EN (1997) EN (2002) and the EC examination certificate is given under: PTB 05 ATEX 2012 X This declaration is given for the manufacturer in full responsibility by Keller AG für Druckmesstechnik St. Gallerstrasse Winterthur, Switzerland KELLER GmbH Schwarzwaldstrasse 17 D Jestetten Jestetten, H. W. Keller Geschäftsführer / CEO (with legally effective signature) KELLER AG St. Gallerstrasse 119 CH-8404 Winterthur Tel (0) KELLER GmbH Schwarzwaldstrasse 17 D Jestetten Tel (0)

MEDIUM-PRESSURE-CALIBRATOR

MEDIUM-PRESSURE-CALIBRATOR STANDARD- AND FULL-VERSION RANGE SERIAL-NR. PROGRAM-VERSION DATE KELLER INCLUDED IN DELIVERY: MEDIUM PRESSURE CALIBRATOR STANDARD-VERSION INCLUDED IN DELIVERY: MEDIUM PRESSURE