Choosing Temperature Units And Automatic/Manual Temperature Compensation; Configuring And Ranging The Current Outputs; Choosing Temp Units And Manual Auto Temp Compensation - Emerson 1057 Instruction Manual

MODEL 1057
5.3 CHOOSING TEMPERATURE UNITS AND AUTOMATIC/MANUAL TEMPERATURE
COMPENSATION
5.3.1 Purpose
Most liquid analytical measurements (except ORP)
require temperature compensation. The Model 1057
performs temperature compensation automatically by
applying internal temperature correction algorithms.
Temperature correction can also be turned off. If tem-
perature correction is off, the Model 1057 uses the tem-
perature entered by the user in all temperature correc-
tion calculations.
5.3.2 Procedure.
Follow the menu screens in Fig. 5.1 to select automatic
or manual temp compensation, set the manual
reference temperature, and to program temperature
units as °C or °F.
Figure 5-1. Choosing Temp Units and Manual Auto Temp Compensation

5.4 CONFIGURING AND RANGING THE CURRENT OUTPUTS

5.4.1 Purpose
The Model 1057 accepts inputs from three sensors and
has four analog current outputs. Ranging the outputs
means assigning values to the low (0 or 4 mA) and high
(20 mA) outputs. This section provides a guide for
configuring and ranging the outputs.
CONFIGURE THE OUTPUTS FIRST.
5.4.2 Definitions
1. CURRENT OUTPUTS. The analyzer provides a con-
tinuous output current (4-20 mA or 0-20 mA) directly
proportional to the process variable or temperature.
20
The low and high current outputs can be set to any
value.
2. ASSIGNING OUTPUTS. Assign a measurement to
Outputs 1, 2, 3, or 4.
3. DAMPEN. Output dampening smooths out noisy
ALWAYS readings. It also increases the response time of the
output. Output dampening does not affect the
response time of the display.
4. MODE. The current output can be made directly
proportional to the displayed value (linear mode) or
directly proportional to the common logarithm of the
displayed value (log mode).
PROGRAMMING THE ANALYZER - BASICS
S1: 1.234µS/cm 123.4ºC
S2: 12.34pH 123.4ºC
S3:123.4µS/cm 123.4ºC
Temperature
Units: °C
S1 Temp Comp: Auto
S2 Temp Comp: Auto
S3 Temp Comp: Auto
SECTION 5.0