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Keller K-114 BT Operating Instructions Manual
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– 24 – – 25 –Technical specificationsProperty Parameter Condition Value UnitBattery capacity ≥ 2300 mAhVoltage 3,7 VType Li-ionBluetooth version 3.0 ClassicRange up to 10 m (class 2)USB plug type Mini USB maleUSB version 2.0External power supply USB 5 ± 5% VDCEnd consumer power supply U-Out 15 VDC ± 5%End consumer power supply I-Out > 100 mAVoltage measurement input U-In 0–12 VDCAccuracy of voltage measurement input U-In RI ≥ 100 kΩ 0.3 %FSResolution of voltage measurement input U-In < 0.004 VCurrent measurement I-Out 0–150 mAAccuracy of current measurement I-Out 0,3 %FSResolution of current measurement I-Out < 0.04 mARS485 configuration parameters Bus address 253RS485 bus devices 1/4 unit load up to 128RS485 transmission rate 9600 (default) / 115200 baudRS485 cable length 0,75 mProtection IP 40Storage and operating temperature -10…+50 °CDimensions (H x W x D) 95 x 28 x 65 mmWeight 150 gBattery/chargingIn order to protect the battery in the device, the user should switch off the converter after use. In battery operation,the K-114 BT switches off automatically after communication has been inactive for 30 minutes.The battery can be charged via the USB interface. Care must be taken to ensure that the battery can be chargedboth via a normal USB port and a DCP (dedicated charging port) or USB adapter. This has the benefit that insteadof being charged with 500 mA or 100 mA (USB port), the battery can be charged with up to 1 A (DCP), reducingthe charging time.Charging and operating times (90%):Table 1: Battery charging timesTable 2: Operating times with the batteryCharging time Value UnitCharging time @ 100 mA (USB/low-powered port) ≈ 22,5 [h] hoursCharging time @ 500 mA (USB/high-powered port) ≈ 4,5 [h] hoursCharging time @ 1 A (DCP) ≈ 2,5 [h] hoursOperating time Value UnitOperating time without load ≈ 3 [d] daysOperating time with „LEO 3“ ≈ 2 [d] daysOperating time with a device with a power consumption of 20 mA ≈ 18 [h] hours |
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