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Antifreeze controller
                                                                            Type              Item no. ADG Euro  /  pc.

                             2-phase antifreeze control, downstream - with display                       see our
                             for monitoring temperature of air heaters against freezing. Copper          current
                             capillary tube with precision switching mechanism and analog               price list
                             output 0 –10 V for proportional opening of control valves. The
                             freeze protection monitor always responds to the coldest location
                             of the capillary tube (min. immersion depth: 250 mm). Setpoint
                             potentiometer, operating mode switch for ”Auto“, ”Test“, ”Manual“,
                             reset button, large display for operating mode and red LED for
                             freeze warning.                                                                          SENSORS
                             Supply voltage:       24 V AC +10 / -20 %; 50 / 60 Hz
                             Power consumption:    6.6 VA
                             Sensor / adjustable range:   0 – 15 °C / 1 – 10 °C
                             Default setting:      5 °C
                             Switching differential:   approx. 2 k
                             Relay output          (changeover contact)
                                                   max.  6 A, 230 V AC; 6 A, 24 V DC
                                                   min.  5 mA, 5 V AC / DC
                             Input / output signal:   0 – 10 V max 1 mA each
                             Rated device head temp.:   -15 – 55 °C
                             Protection type / class:   IP 42; I
                             Time constant:        calm air 90 sec
                                                   moving air < 40 sec
                             Capillary tube:       Rated temperature max. 110 °C
                                                                       2
                             Electrical connections:    Spring clips max. 2 x 1.5 mm
                                                   or 1 x 2.5 mm 2
                             Permiss.
                             ambient conditions:     -15 – 55 °C, 0 – 85 % RH
                                                   (non-condensing)
                             Scope of delivery:      M16 cable gland, rubber
                                                   grommet for feeding the capillary
                                                   tubes through the duct and
                                                   screw fasteners.

                             Capillary tube length 2 m, with 4 mounting clamps  OPP-FRO-S2    101297  02
                             Capillary tube length 6 m, with 6 mounting clamps  OPP-FRO-S6    101298  02
                             Data sheet no. 20672

                             Mounting clamps (replacement part 1 pc.)       MK                101196  02
                             for antifreeze and average value sensors
                             Data sheet no. 20672




























               For our current prices see www.oppermann-regelgeraete.de/en/downloads/catalogue-1   Catalog 2024  |  Sensors  |  87
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