Innovation on the right wavelength. Level measurement in compact tanks using microwave technology.

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1 Level sensors Innovation on the right wavelength. Level measurement in compact tanks using microwave technology.

2 The innovative measuring principle for high ease of use and low cost. evaluation The new efector gwr: Measuring levels using the innovative measuring principle of the GWR technology (Guided Wave Radar). Increase plant uptime: The robust and compact sensor is maintenance and wear free. Deposits and light foam formation are largely suppressed. Fast set-up thanks to ease of use and simple mounting. Variabel: The probe can be cut to length, if needed. 4-digit alphanumeric LED display. Two or four programmable switch points with hysteresis or window function. Medium temperature up to 80 C. Price and performance are convincing. The efector gwr operates to the principle of guided wave radar and measures the level using electromagnetic pulses in the nanosecond range. The pulses are transmitted by the sensor head and guided along the probe. If the microwave pulse hits the medium to be detected, it is reflected, guided back to the sensor and evaluated. The time between transmitting and receiving the transmitted pulse blocking distance Echo time of flight principle in GWR technology. pulse directly relates to the travelled distance and the current level. reflection echo clear space HF inactive measuring range 4 cm clear space around the sensor 5 cm

3 For industrial applications efector gwr with microwave technology. The new quality standard in level monitoring. efector gwr reliably monitors the level of coolants for machine tools even in difficult applications such as grey cast iron processing. Build-up on the stainless steel probe caused by metal particles or grind swarf do not affect operation. Coolant monitoring Part cleaning monitoring High performance attractive price. efector gwr provides the advantages of an innovative measurement technology at an extremely attractive price. It is a realistic alternative to simple vibration forks and float switches, the disadvantages of which are, for example, a high level of maintenance and limited life due to wear. Thanks to its ease of installation and use the efector gwr is much more user-friendly than conventional measuring systems using microwave technology. performance efector gwr float switch vibration fork GWR level meter price mechanical switch efector gwr

4 In industrial part washer applications the efector gwr reliably detects the level of aqueous cleaning agents at medium temperatures up to 80 C. The efector gwr is the best alternative to mechanical float switches because of its display and its two freely programmable switching outputs. High operational reliability: Even if there are deposits or the first indication of foam formation, the sensor operation is largely reliable. Photo by courtesy of Dürr Ecoclean Group The efector gwr is directly mounted into the tank via a process connection or via a flange plate. It is electrically connected to the controller via an M12 connector. Very easy: If needed, the probe can be cut to length by the user. Easy installation. The parameters such as switch-on point and switch-off point point are set by simply pressing a pushbutton. The current level and the set parameters are visible at a glance on the 4- digit alphanumeric display. User-friendly parameter setting. Reliable in operation. cost comparison: mechanical float switch with cleaning intervals versus the maintenance-free efector gwr level sensor The comparison clearly shows the economic benefit: Using the efector gwr, costs can be reduced by up to 70 % compared to mechanical monitoring systems cost share [%] cost unit cost installation cost level display cost cleaning intervals unforeseen cost / standstill

5 Technical data level sensor LR Application aqueous media, coolants, cleaning agents, water Electrical design DC PNP DC PNP DC PNP Connection 4-wire 8-wire 4-wire Output Order no. 2 x normally closed / normally open progr. LR7000 Process connection G 3/4 LR7300 NPT 3/4 4 x normally closed / normally open progr. LR8000 G 3/4 LR8300 NPT 3/4 1 x normally closed / normally open progr. 1 x analogue output ma / V LR3000 G 3/4 LR3300 NPT 3/4 Operating voltage [V] DC Current rating [ma] 200 Current consumption [ma] < 80 Dielectric constant medium > 20 Max. tank pressure Power-on delay time Switch point accuracy Repeatability Operating temperature Medium temperature Protection Function display Display unit Switching status Housing materials Connection [bar] [s] [cm] [cm] [ C] [ C] LED LED Measured values, programming Materials (wetted parts) 2 x green 2 x yellow ± 1.5 ± IP 67 III 2 x green 4 x yellow 4-digit alphanumeric display stainless steel (303S22), PTFE, NBR FKM, NBR, PBT, PC, TPE-V, stainless steel (304S15), PTFE, PEI M12 connector to EN , gold-plated contacts 2 x green 1 x yellow LR7000, LR8000, LR3000 Probes / accessories Description Order no. 1 I2 A I L 87 G M12 x1 30 Probe 240 mm, stainless steel (303S22) Probe 450 mm, stainless steel (303S22) Probe 700 mm, stainless steel (303S22) Probe 1000 mm, stainless steel (303S22) Probe 1200 mm, stainless steel (303S22) Probe 1400 mm, stainless steel (303S22) Probe 1600 mm, stainless steel (303S22) Flange plate LR Flange plate LR Flange plate LR NPT E43203 E43204 E43205 E43207 E43208 E43209 E43210 E43201 E43202 E = 4-digit alphanumeric display 2 = LEDs (display unit / switching status) 3 = Programming buttons Sockets Description Order no. 2 m PUR, M12 angled, without LED, 4-pole EVC004 5 m PUR, M12 angled, without LED, 4-pole EVC005 2 m PUR, M12 angled, without LED, 8-pole E m PUR, M12 angled, without LED, 8-pole E11232 You can find the current prices on our website at

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