72-900-06 Rev. F
Page 13 of 38
3.13.1 Fluorometer – Trace Chemical
The MicroVision EX can be optionally purchased panel mounted with a fluorometer, turner
LD2 or Pyxis ST-500 probe. From the factory, the probe comes prewired and calibrated.
Alternatively, the probe can be ordered separately, wired and programmed. Be sure to
observe the manufacturers wiring directions.
3.13.1.1 Turner Little Dipper™ 2
The turner is an inline fluorometer with a linear 4-20mA output which responds to trace
chemical. Typically is set to 4mA = 0 PPB and 20mA = 200 PPB probe has 4 wires; Red,
Black, Orange, and Brown. The red is the power supply voltage. Black is the Supply
ground. Orange is the positive current loop connection. Brown is the negative current loop
connection. The turner little dipper 2 requires an external power supply of 8-32 VDC (1W
Max)
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