RL10: Universal relay for filling or emptying RL11: Level relay for emptying RL12: Level relay for filling 1 or 2 sensor levels Adjustable sensitivity 1- or 2-pole relay output DC supply (RL10 only) or AC supply up to 230 VAC Made in accordance with the and EMC regulations C-mac® level relays, series RL, are made for monitoring and control of the level in conductive liquids. The level is monitored by 1 or 2 electrodes in the liquid. RL10 is supplied with internal oscillator for the signal to the electrodes, which means the module can be used for both AC and DC supply, and furthermore it is possible to adjust the unit to a very high sensitivity, which means it can be used for very clean liquids, i.e. liquids with low conductivity. RL11 and RL12 use the frequency of the supply voltage to generate the signal for the electrodes, therefore these units are only available for AC supply, and the sensitivity is not so high as the RL10. RL11 and RL12 are available with either adjustable or fixed sensitivity. Common technical data: Supply, AC: Supply frequency: Variable supply: Isolation voltage: Supply voltage, DC: Power consumption: Operation temp.: Humidity: Sensor signal: RL10: RL11 and RL12: Sensor cable: Adjustments: Indications: Green LED: Red LED: 24, 115 and 230 VAC +/- 10% 40-70 Hz 12-50 or 48-250 VDC (RL10 only) Supply - input - output: 3.75 kV 24 VDC +/- 10% (RL10 only) Note: With this DC-supply there is no isolation between supply and internal electronics. 12-50 VDC with internal DC/DC converter and galvanic isolation between supply and internal circuits. 2,5 VA -20°C to +60°C 0 - 90% RH, non-condensing Sensitivity: module type function filling relay activates relay releases RL10 is a universal relay, with a 3-bit dipswitch in the buttom of the relay, where you can select the function: Filling: switch 1 ON switch 2 OFF switch 3 ON Emptying: switch 1 OFF switch 2 ON switch 3 OFF Max. load, relay: EMC and safety regulations. Emmision: EN 50 081 - 1 Immunity: EN 50 082 - 2 Safety: EN 60 730 Approvals: The units are produced in accordance with the CE og low voltage regulations. 8 VAC / 70 Hz, max 1 mA 8 VAC, max 1 mA Standard 2- or 3-wire cable max. 100 m. Potentiometer, scale 1 to 10 (RL11F and RL12F: no adjustment) Supply voltage connected Relay active

Functional diagram 1: 2 electrodes Supply J^^^^^^^^^^^^ Functional diagram 2: 1 electrode (ON/OFF control) Ordering guide: y-zzz = supply voltage: The examples are shown for RL10, but the same Mechanical dimensions: Control module Housing: NORYL-SE-1, grey, self-extinguishing Housing bottom: NORYL SE-1, GFN-2, black, Terminals: Nickel-plated brass