Hach Sigma 950, Инструкция по эксплуатации инструмента

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Section 7 Optional Device Installation
This section describes how to set up a rain gauge to the 950 Flow Meter as well as how
to install the optional water quality probes (pH, ORP, Dissolved Oxygen, Conductivity,
Temperature Probe).
7.1 Rain Gauge
7.1.1 Rain Gauge Connection
An external “tipping bucket” rain gauge (such as P/N 2149) can be connected to the Rain
Gauge connector of the 950 Flow Meter. The rain gauge provides a dry contact closure to
the flow meter.
7.1.2 Rain Gauge Programming
1. From the Main Menu, select
OPTIONS>ADVANCED OPTIONS>DATALOG.
2. Highlight
SELECT INPUTS
using the
UP
and
DOWN
arrow soft keys and then press
SELECT
.
Note: If logging is enabled on any channel, that channel will have an arrow in front of the channel
name to signify that the channel is logged.
3. Highlight Rainfall using the
UP
and
DOWN
soft keys, then press
SELECT
.
4. Press
CHANGE CHOICE
to cycle between Logged and Not Logged, then press
ACCEPT
.
5. Enter a logging interval using the numeric keypad, then press
ACCEPT
. Valid logging
intervals are shown on the status bar along the bottom edge of the display.
6. Select Rainfall Units (in. or cm). Press
ACCEPT
to continue.
7. Select another channel to configure, press
RETURN
to back up one step, or press the
MAIN MENU
function key to return to the Main Menu.
Table 16 Rain Gauge Connector Pin Assignments
Pin Signal Description
A +12 V dc source output
B not used
C +12 V dc pulse input
D not used
E not used
F not used