Manual – Starflow QSD Model 6527B and 6537A
Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx
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2.0
SPECIFICATIONS
Velocity (Continuous Beam):
Range
20mm/sec to 0.8 m/sec
20mm/sec to 1.6 m/sec (default)
20mm/sec to 3.2 m/sec
20mm/sec to 13.2 m/sec
Bidirectional velocity capability, set using configuration tools
Accuracy
Typical ±1%
Resolution
1 mm/s
Depth (Ultrasonic)
Range
20mm to 5000mm (5m)
Accuracy
± 1% of full scale
Resolution
1 mm
Depth (Pressure)
Range
0mm to 10m
Accuracy
Typical ±0.19% for 0m to 5m range
Typical ±0.38% for 0m to 10m range
Resolution
1 mm
Temperature
Range
0°C to 60°C
Accuracy
±0.5°C
Resolution
0.1°C
Electrical Conductivity (EC) – 6537A ONLY
Range
0 to 200,000 µS/cm, typically ±1% of measurement
Resolution
±1 µS/cm
May be recorded as a 16-bit value (0 to 65,535 µS/cm) or
a 32-bit value (0 to 262,143 µS/cm)
Tilt (accelerometer)
Range
±70° in roll and pitch axes.
Accuracy
±1° for angles less than 45°
Power Requirements
Voltage range
12 to 24 V DC
Supply current
50uA standby, 100mA active for 1 second @12V
Power source
12V DC - typically an external batter
Communications
SDI-12
SDI-12 v1.3
Connection
Single cable up to 50 metres long (standard fitment is 15m)
Maximum cable
60m defined by SDI12.org
RS-485
Modbus RTU
Connection
Single cable up to 300 metres long (standard fitment is 15m)
Baud rate and parity Configurable
