21
5.3 CONFIGURING AND RANGING THE OUTPUTS.
5.3.1 Purpose
The analyzer is available in single or dual input versions. The single input analyzer has one current output. The
dual input analyzer has two current outputs. This section describes how to configure and range the outputs.
CONFIGURE THE OUTPUTS FIRST.
1.
Configuring an output means
a.
Selecting either a 4-20 mA or 0-20 mA output,
b.
Assigning a sensor and a measurement (turbidity or TSS) to output 1 and output 2,
c.
Turning on or turning off output current dampening.
2.
Ranging the outputs means assigning values to the low (0 or 4 mA) and high (20 mA) outputs.
5.3.2 Definitions
1.
CURRENT OUTPUTS. The analyzer provides either a continuous 4-20 mA or 0-20 mA output current directly
proportional to turbidity or TSS.
2.
ASSIGNING OUTPUTS. Figure 5-1 shows the ways in which the outputs can be assigned in a dual input ana-
lyzer. The single input analyzer has only one output.
3.
DAMPEN. Output dampening smooths out noisy readings. It also increases the response time of the output.
With output dampening the time to reach 63% of final reading following a step change is 5 sec. Output damp-
ening does not affect the response time of the display.
FIGURE 5-1. Assigning Outputs 1 and 2 in a dual input instrument
MODEL CLARITY II
SECTION 5.0
PROGRAMMING THE ANALYZER
21
