Nokeval 6841 Transmitter for Strain Gauge Sensors
The Nokeval 6841 is a DIN rail mounted strain gauge / weighing transmitter. It is equipped with a small display and push buttons to allow configuration without a separate programming device. There is also two alarm relays, analog output, and RS-485 serial output with Nokeval SCL and Modbus protocols. The sensor can be connected using 6-wire measurement to eliminate wire resistance effect. Sensor excitation is about 10 V DC.
The device can be calibrated / teached in up to six points.
Key Features
- Output 0/4..20 mA, 0..10 V
- Strain gauge sensors with 4- or 6-wire connection
- Excitation voltage 10 V to sensors, max 150 mA
- Settings via front panel keys
- Serial communication RS-485
- 2 alarm relays
- Taring via front panel keys or external switch
- Measuring accuracy < 0,05 %
- Power supply 12..32 VDC or 85..240 VAC
- Linearisation 6 points
Input Details
- Inputs: Strain gauge sensors
- Input Channels: 1
- Measuring Range: max 4 x 350 Ω parallel
- Measuring Rate: 4…14 measurements / s
- Drift: 0.003 % / °C
- Accuracy: 0.05% full scale
Output Details
- Output Loading: mA: 0…600 Ω
- Output Channels: 2
- Accuracy: 0.05% full scale
- Outputs: mA, V
- Alarm Relays: 2
Connection Details
- Connection Model: 2.5mm², detachable
- Bus Interface: RS-485
- Bus Protocol: Nokeval SCL
- Baud Rates: 1200, 2400, 4800, 9600, 19200, 38400
Display Details
- Display Colour: Red
- Number of Digits: 4
- Display: 7 segment LED
- Digit Size: 7 mm
- Indicator Lights: configuration state and alarms
Power Supply
- Supply Voltage: 85..240 VAC
- Supply Voltage (optional): 12..32 VDC/ 24 VAC
General Information
- Weight: 240 g
- Installation: 35 mm DIN rail
- Dimensions: 45 x 100 x 110 mm (WHD)
- Minimum Ambient Temperature: 0°C
- Maximum Ambient Temperature: 60°C
- Case Material: Plastic
