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6.3
Configuring, ranging, and simulating outputs
6.3.1
Purpose
This section describes how to configure, range, and simulate the two analog current
outputs.
Important
Configure the outputs first.
1.
2.
3.
6.3.2
Definitions
Analog current
output
Assigning an
output
Linear output
Logarithmic
output
Dampening
Fault
Instruction Manual
Configuring an output means
a. Assigning a sensor and measurement (monochloramine or temperature) to an
output.
b. Selecting a 4-20 mA or 0-20 mA output.
c. Choosing a linear or logarithmic output.
d. Set the amount of dampening on the analog outputs.
e. Selecting the value the output current goes to if the transmitter detects a fault.
Ranging the output means assigning values to the low (0 or 4 mA) and high (20 mA)
outputs.
Simulating an output means making the transmitter generate an output equal to
the value you entered.
The analyzer provides either a continuous 4-20 mA or 0-20 mA output
signal proportional to monochloramine or temperature.
The outputs are freely assignable. Outputs can be assigned to either
monochloramine or temperature.
Linear output means the current is directly proportional to the
common logarithm of the variable assigned to the output
(monochloramine or tempreature).
Logarithmic output means the current is directly proportional to the
common logarithm of the variable assigned to the output
(monochloramine or temperature).
Output dampening smoothes out noisy readings. It also increases
response time. The time selected for output dampening is the time to
reach 63% of the final reading following a step change. Output
dampening does not affect the response time of the display.
The transmitter continuously monitors itself and the sensor for faults.
If the transmitter detects a fault, a fault message appears in the main
display. At the same time, the output current goes to the value
programmed in this section. There are two output fault modes: fixed
Programming the transmitter
29
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