UniData Communication Systems Starflow QSD Manual page 6

Environmental
Operating
Storage
Humidity
Physical
Dimensions
Material
Weight
Cable
Cable options
Instrument Wiring Table
Variants for Wiring are detailed below
Starflow QSD / Wire Colour
Starflow QSD / Wire Colour
* Use with Unidata 6515A QSD Barometric Reference Module
When Unidata 6515A QSD Barometric Reference module is connected, the instrument will
automatically handle the barometric correction and will report actual water level instead of water head
plus atmospheric pressure.
If your data logger has a barometric sensor, the data logger program must perform the barometric
correction OR the user can perform a post processing method to correct for barometric changes by
using barometric pressure data from a trusted source such as a weather department or another
barometer close by.
The 6515A QSD Barometer Reference module should be:
a) Mounted in an enclosure near to the data logger in a position protected from the elements.
b) The enclosure should be vented to allow the barometer sensor to be exposed to atmospheric
pressure variations.
Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx
Manual – Starflow QSD Model 6527B and 6537A
0°C to 60°C (water temperature)
-20°C to 60°C
up to 100 % RH
Approximately L 135 mm, W 55 mm, H 22 mm
Epoxy-sealed body, stainless steel mount
1kg with 15m of Cable
15 metre
User-specified, up to 50 metres
Brown Wire Variant
White
Brown
Green
Yellow
Pink
Grey
Red Wire Variant
White
Red
Yellow
Blue
Orange
Grey
Function / Signal Name
SDI-12
Power
Ground
A- (Modbus)
B+ (Modbus)
One-Wire *
Function / Signal Name
SDI-12
Power
Ground
A- (Modbus)
B+ (Modbus)
One-Wire *
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