Hach 1950Plus Instrument Manual page 33

Uv process toc analyzer
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Figure 11 Termination Printed Circuit Board Assembly (P. N. 130143)
1.
Optional Serial Communications Network Card
2.
Pressure Sensor with Pneumatic Connection to UV Block Carrier Gas
3.
NDIR Cell Heater LED. (Flashes on and off to indicate heat cycle).
4.
24V Power Input Connection
5.
JP1. Pins 2 and 3 are jumpered when optional RS422/485 network card is installed
6.
Sparger Flow Bubble Detector LED. Flashes on bubble detection at sparger inlet
7.
Sparger Bubble Detector Connection
8.
UV Flow Bubble Detector Connection
9.
UV Block Flow Bubble Detector LED. Flashes on bubble detection at UV block
10. Remote Control Input
(section 5.2.6.5 on page
11. Dual Stream Valve Connection
UVTOCUnpacking Installation Setup.fm
(section 2.5 on page
41)
80).
Section 2
(section 2.5 on page
41)
(section 8.6.7 on page
144).
(section 8.6.7 on page
144).
Wiring the Instrument
Page 33

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