Nokeval 6841 Transmitter for Strain Gauge Sensors

 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
Red LED display on the front panel
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

Please call 01628 778688 for more information.

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