Conductive Sensors 2-point level controller Type CL with teach-in • Conductive level controller • Teach-in of sensitivity – operating resistance from 220Ω to 220KΩ • For filling or emptying applications • Low-voltage AC electrodes • Easy installation on DIN rails or with 11 pin circular plug • Rated operational voltage: 24 VAC/DC, 115 VAC or 230 VAC • Output 2x5A/250 VAC DPDT relay • LED indication for: Calibration, faulty operation and relay status Product Description Ordering Key µ-Processor based level controller for liquids with a wide sensitivity range (like sewage water, chemicals, salt water etc.). Type DIN rail mounting Inputs Function Adjustment Outputs Relay versions Power supply Max./min. control of charging/ discharging. The sensitivity is adjustable by means of the teach-in function. 2 X 5A DPDT relay output. CLD2ET1CM24 Type Selection Mounting Relay Ordering no. Supply: 24 VAC/DC Ordering no. Supply: 115 VAC Ordering no. Supply: 230 VAC DIN-rail DPDT CLD2ET1CM24 CLD2ET1C115 CLD2ET1C230 CLP2ET1CM24 CLP2ET1C115 CLP2ET1C230 11-p circular plug Specifications Rated operational voltage (UB) Pin 2 & 10 230 115 924 Rated insulation voltage Rated impulse withstand voltage 4 kV (1.2/50 µs) (line/neutral) Rated operational power AC supply AC/DC supply 5 VA 5 VA / 5 W Delay on operate (tV) < 300 mS Outputs Rated insulation voltage Relay Rating (AgCdO) Resistive loads Small induc. Loads AC1 DC1 or AC11 DC13 Mechanical life (typical) Electrical life (typical) Level probe supply AC1 195 to 265 VAC, 45 to 65 Hz 98 to 132 VAC, 45 to 65 Hz 19.2 to 28.8 VAC/DC <2.0 kVAC (rms) 250 VAC (rms) (cont./elec.) µ (micro gap) 5 A / 250 VAC (2500 VA) 1 A / 250 VDC (250 W) 5 A 25 VDC (250 W) 0,4 A 250 VAC 0,4 A / 30 VDC ≥ 30 x 106 operations @ 18’000 imp/h > 250’000 operations Max. 12 VAC Level probe current Max. 2.5 mA Sensitivity 220Ω to 220KΩ Factory preset: 47KΩ Specifications are subject to change without notice (08.12.2005) Dielectric voltage >2.0 KVAC (rms) (contacts / electronics) Rated impulse withstand volt. 4 kV (1.2/50 µS) (contacts / electronics) (IEC 664) Operating frequency (f) Relay output 1 HZ Response time 1 s (3.5 s with filter) Environment Overvoltage category Degree of protection Pollution degree III (IEC 60664) IP 20 /IEC 60529, 60947-1) 2 (IEC 60664/60664A, 60947-1) Temperature Operating Storage -20º to +70ºC (-4º to + 158º) -50º to +85ºC (-58º to +185ºF) Housing material NORYL SE1, light grey Weight AC supply AC/DC supply 200 g 125 g Approvals UL508, CSA CE marking Yes 1 CLD2ET1CM24 Mode of Operation (In the diagram this electrode is shown by the dotted line). Example 1 (Din-rail) Y2 Hi Filter The signal delay is selectable from 1 second or 3 seconds, and works for the on/off switching of the output relays. and min. control. The relays react to the low alternating current created when the electrodes are in contact with the liquid. The reference (Ref) must be connected to the container or if the container consists of a non-conductive material, to an additional electrode. (To be connected to pin Y3). Lo DIP-switch setting Select the needed function on the DIP-switches, so that the desirable application occurs. Press the pushbutton in front of the controller shortly, until the green LED flashes once. The DIPswitch setting will now be read by the controller. other electrodes are in contact with the liquid – approximately 1 cm. Press the “teach” pushbutton at the front of the controller for approximately 2 seconds, until the green LED turns OFF. The controller will now auto-adjust itself according to the resistance of the measuring liquid. If the resistance of the liquid is outside the maximum range handled by the controller, the green LED will flash quickly for a period of 2 seconds, indicating a wrong teach-in. REF Connection cable 2, 3, or 4 conductor PVC cable, normally screened. Cable length: max. 100 m. The resistance between the cores and the ground must be at least 220k. Normally, it is recommended to use a screened cable between probe and controller, e.g. where the cable is placed in parallel to the load cables (mains). The screen has to be connected to Y3 (reference). 12 14 Y3 Y1 A1 22 24 A2 11 21 Teach-in: Make sure that the reference electrode and one of the Example 1 The diagram shows the level control connected as max. Function: Charge or Discharge The Controller can be used as a minimum-maximum control for one system. ON DIP switches 1 1 2 2 Discharge Charge Filter off Filter on ON Charging Charging or discharging Power Supply X-REFERENCE TERM PLUG Y1 6 Y2 5 Y3 22 A1 A2 11 7 8 2 10 1 12 14 21 24 4 3 11 9 Time Power supply LO electrode in liquid HI electrode in liquid Relay on pumping contact (make) Discharging Power supply HI electrode in liquid LO electrode in liquid Relay on pumping contact (make) 2 Specifications are subject to change without notice (08.12.2005) CLD2ET1CM24 Operating Schedule The following schedule provides an overview of the setup and failure situations Situation Condition Action Read DIP-switch setting The DIP-switch setting has to match one of the descriptions written in ”mode of operation” Press the Teach-button in front of the controller shortly until the green control lamp turns off. Release the teach button immediately Fill the tank with the liquid to be measured until the second longest electrode is immersed approx. 1cm Press the Teach button in front of the controller for approx. 2 seconds until the green control lamp turn off continuously. Release the teach button Teach-in Failure indication The Green lamp is flashing fast for approx. 2 seconds after a teach-in operation Green Control lamp Control the electrode for short-cut connections. Control that the resistance of the measured liquid is within the specified range Teach button Green lamp Teach button Green lamp Teach button Green lamp Wiring Diagram Din-rail version Plug version A1 Hi Lo 12 14 22 24 2 Hi Lo Y2 Y1 Y3 A2 11 21 4 3 8 9 5 6 7 10 1 11 (PE) (PE) Ref Ref Dip Switch Settings ON DIP switches 1 1 2 2 Discharge Charge Filter off Filter on ON Specifications are subject to change without notice (08.12.2005) 3 CLD2ET1CM24 Dimension Drawings Din-rail version 45 21 41,5 60,2 63 Plug version 81 35,5 35,5 Delivery Contents Accessories • 11 pole corcular socket • Mounting rack 4 ZVD11 SM13 • Amplifier • Packaging: Carton box • Manual Specifications are subject to change without notice (08.12.2005)