Operating Instructions
Contents
1. 24V DC Gr max 30mA L MAXIMAT VK C binary output to coupling relay Power supply with overcurrent protection Analogue input channel PLC D0 A0 A0 T Schirmung empfohlen Configuration 0 20mA Overfill sensor MAXIMAT VK C Logic OK Im gt 4 mA lt 20mA Fill level alarm Im lt 4mA Defective Im lt 4mA oder gt 20mA MAXIMAT VK C current output to PLC analogue input Adjustment Instructions The maximum allowable fill level of any given tank can be determined for example in accordance with TrbF 280 no 2 2 Triggering level A is then calculated in accordance with attachment 1 or the approval guidelines for overfill inhibitors ZG US Dribbling quantities and switching delay times must be taken into consideration Switching delay time can be adjusted at the MAXIMAT SHR C measuring transducer within a range of 0 3 to 3 seconds Installation length L determines the fill level monitor s triggering point Dimensions are calculated as follows H tank height A triggering level B connector E immersion depth table E S triggering point L H A B t E 3 S L E 3 Power supply with overcurrent protection Le N Measuring transducer MAXIMAT SHR CS Overfill sensor MAXIMAT VK C MAXIMAT VK C to MAXIMAT SHR CS measuring transducer Power supply with overcurrent protection L N Measuring transducer MAXIMAT SHR C19 Indica2. Operating Instructions u Compact Overfill Sensor Float Type MAXIMAT VK C with integrated mesuring Transducer DIBT Approval Z 65 11 355 pea 299 eaa TIN TT an CAS Terminal Housing t i Terminal Housing I g z Terminal Housing LELI Compression Compression 4 m Oise T Slotted Capstan Screw E Slotted Capstan m e S EE i O Ring crew E MS steeve nn LH sieeve mr O Ring 5 t n Adjustor Fitting T T t Probe Tube Lo E Probe Tube Probe Tube A i t Float p MAXIMAT VK_2L Float Float MAXIM AT VK_4L min 187 DIN Flange it oe L2 L1 12mm L L Ll tn MAXIMAT VK_3L PIN PIRN H z Terminal LA Terminal Housing Compression i Housing Dise i T Slotted Capstan Screw a Sleeve Nut Bat z a qji N 5 Weld On Union fil Probe Tube i aE SA Probe Tube _ Float St es l l i MAXIMAT VK_1L ZA Float MAXIM AT VK_SL Safety Precautions e Installation initial start up and maintenance may only be performed by trained personnel All applicable European and national regulations regarding installation of electrical equipment must be adher
3. ed to e The device may only be connected to supply power which complies with the specifications included in the technical data and on the serial plate e The device must be disconnected from all sources of power during installation and maintenance work e The device may only be operated under the conditions specified in the operating instructions Functions Description The MAXIMAT VK C compact overfill sensor is used as a fill level limit switch for permanently installed containers used for the storage of non flammable water endangering liquids It is equipped with three different output circuits e A binary output for controlling a coupling relay or the digital input of a PLC e AOto 20 mA current output for controlling an analogue input channel e g a programmed logic controller PLC e Self monitoring measuring circuit in combination with the MAXIMAT SHR C measuring transducer with 2 wire connection Technical Data Supply power 24 V DC 10 With current limiting or 250 mA fuse recommended Connected load Approx 3 W Ambient temperature 20 to 60 C Container pressure Atmospheric 0 8 to 1 1 bar Terminal housing IP 65 Terminals Screw terminals IP 20 Max wire cross section 2 5 mm Outputs Binary output DO DO max 20 mA 24 V AO AO 0 to 20 mA Output for MAXIMAT SHR C measuring transducer DIP Switch Operating Mode DIP1 DIP2 DIP3 DIP4 Binary output ON ON ON OFF Curr
4. ent output PLC OFF OFF OFF OFF MAXIMAT SHR C OFF OFF OFF OFF Note Only for liquids with density greater than 0 7g cm The MAXIMAT VK C compact overfill sensor is used also for oil emulsion and other non conductive liquids Default setting Note Be sure to examine the DIP switch settings before switching supply power on Indicators Green LED on the connector PCB e Run LED illuminated e Alarm error LED off Measuring circuit for use with SHR C transducer Max cable inductance approx 5 mH Max cable capacitance approx 0 5 uF Measuring circuit cable length Max 300 m Min wire cross section 0 5 mm CE mark In accordance with low voltage directive 73 23 EWG EMC directive 89 336 EWG and e EN 50 082 2 1995 e EN 55 011 class A 1998 DIBT Approval Approval no Z 65 11 355 for overfill sensors and leakage sensors in accordance with WHG 19 Note The accompanying General Building Supervisory Approval no Z 65 11 355 is an integral part of the operating instructions and all stipulations contained therein must be adhered to U0213 D0C 06 03 IER Eberhard Henkel GmbH Sheet 1 Operating Instructions MAXIMAT VK C Compact Overfill Sensor Float Type Electrical connection Contol voltage L 24VDC Power supply with overcurrent protection alternative L ov Overfill sensor MAXIMAT VK C Coupling relay
5. tion and control unit Overfill sensor MAXIMAT VK C MAXIMAT CK C to MAXIMAT SHR C19 transducer 47 42 32 Swimmer Immersion Depth in mm 12 o7 08 08 10 11 12 13 14 15 Density of the Liquid in Grams per Cubic cm Guide tubes included with MAXIMAT VK 3L and MAXIMAT VK 4L adjustable level monitors are supplied 50 mm longer than dimension L so that the fill level monitor can be adapted to correspond to triggering level A during installation It is thus possible to readjust dimension L After the triggering point has been set the locking screws are tightened and sealed against tampering Due to the fact that this seal is not removed during periodic testing dimension L is always fixed i e no readjustment is necessary SU0213 DOC 06 03 IER Eberhard Henkel GmbH Sheet 2
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