Rosemount 2700 - Selecting Diff;Ratio Display Mode; Selecting Single Sensor Display Mode; Stored Units for Conductivity Type Sensors

4-5
1. Select Option
➻
Press
➻
2. Select Option
➻
3. See
➻
4. Press Twice
➻
5. Select ON
➻
6. Press
➻
7. Select Mode
➻
Press
➻
8. Press Twice
To Select Between Single Sensor Mode Or Diff/Ratio
Mode.
1. Follow steps shown in Figure 4-4 to select the
Diff/Ratio mode.
Background Information. The equations used for the
Diff/Ratio functions are:
SENSOR 2 (Product Conductivity)
1. RATIO = ––––––––––––––––––––––––––––––
SENSOR 1 (Feed Conductivity)
2. DIFF = SENSOR 2 - SENSOR 1
FIGURE 4-4 Selecting Diff/Ratio Display Mode.
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PROGRAM
SENSOR
PRIMARY DISPLAY
INSTRUMENT ADDRESS
EXIT
F4
MAIN MENU
ALARMS
OUTPUT
PROGRAM
PROGRAM DISPLAY
DIFF/RATIO NEEDED OFF
AVAILABLE SENSOR 1
SEN1 K.01 UNITS
SEN2 K.01
PROGRAM DISPLAY
DIFF/RATIO NEEDED ON
AVAILABLE MODE:
RATIO RATIO
DIFF
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NEXT
F3
NEXT
F3
MODEL 2700 SECTION 4.0
CONFIGURATION
PROGRAM DISPLAY
DIFF/RATIO NEEDED ON
AVAILABLE MODE:
SENSOR PROCESS UNITS AVAILABLE
TYPE USED IN
Pure Water
µS/cm Mohm-cm µS/m Kohm-m ppm-TDS
µS/cm R* Mohm-cm R* mS/m Mohm-m
µS/cm Mohm-cm Kohm-m µS/cm
Water µS/cm R* Kohm-cm R* Mohm-m mS/m
K=0.01
Mohm-cm R*
µS/cm Mohm-cm Mohm-m µS/m ppm-TDS
NaCl
µS/cm R* Mohm-cm R* Kohm-m mS/m
CATION
µS/cm Mohm-cm Kohm-m µS/m ppm-TDS
mS/cm R* Mohm-cm R* Mohm-m mS/m
Water
µS/cm Kohm-cm µS/cm R* ohm-m ppm-TDS
K=1.0
mS/cm Kohm-cm R* mS/m Kohm-m ppt-TDS
NaCl
µS/cm Kohm-cm mS/m ohm-m ppm-TDS
mS/cm Kohm-cm R* µS/cm R* Kohms-m ppt-TDS
Water
mS/cm Ohm-cm mS/m %CONC
mS/cm R* Ohm-m S/m Kohm-cm R*
4 ELEC.
NaCl
µS/cm Ohm-cm S/m
(K=0.85) %CONC Ohm-m mS/m
HCl mS/cm mS/cm R* S/m S/m R* %CONC
NaOH mS/cm mS/cm R* S/m S/m R* %CONC
TABLE 4-2. Stored Units For Conductivity Type Sensors.
* R-not temperature compensated measurement (“Raw”)
1. Select Option
➻
Press
➻
2. Select Option
➻
3. See
➻
4. Select
➻
Press
➻
5. Press
Sensor with
➻
6. Select Units (Parameter
to make Primary)
➻
Press
➻
7. Press Twice
FIGURE 4-5. Selecting Single Sensor Display Mode.
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PROGRAM
SENSOR
PRIMARY DISPLAY
INSTRUMENT ADDRESS
MAIN MENU
ALARMS
OUTPUT
PROGRAM
PROGRAM PRI DISPLAY
DIFF/RATIO NEEDED OFF
AVAILABLE SENSOR 1
SEN1 K.01 UNITS
SEN2 K.01
PROGRAM PRI DISPLAY
DIFF/RATIO NEEDED OFF
AVAILABLE SENSOR 1
mS/cm UNITS
DEG C mS/cm
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NEXT
F3
▲
▼
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▲
EXIT
F4
SENSOR 2 (Product Conductivity)
3.
%PASS = –––––––––– x 100
SENSOR 1 (Feed Conductivity)
4. % REJECT = 100 - (% PASS)
Sensor 1 and 2 are the sensors addressed as #1 and
#2 during start-up. To change a sensor address see
Section 4.9
To Select Single Sensor Mode.
1. Follow the steps shown in Figure 4-5.