Chlorine (Code -24 And -34); Free And Total Chlorine; Monochloramine; Ph-Independent Free Chlorine - Emerson Rosemount 1056 Instruction Manual

Instruction Manual
LIQ-MAN-1056

Free and Total Chlorine

The 1056 is compatible with the 499ACL-01 free chlorine
sensor and the 499ACL-02 total chlorine sensor. The
499ACL-02 sensor must be used with the TCL total
chlorine sample conditioning system. The 1056 fully
compensates free and total chlorine readings for
changes in membrane permeability caused by temper-
ature changes. For free chlorine measurements, both
automatic and manual pH correction are available. For
automatic pH correction select code 32 and an appropri-
ate pH sensor. For more information concerning the use
and operation of the amperometric chlorine sensors and
the TCL measurement system, refer to the product data
sheets.
Performance Specifications
Resolution: 0.001 ppm or 0.01 ppm – selectable
Input Range: 0 nA – 100 A
Automatic pH correction (requires Code P): 6.0 to
10.0 pH
Temperature compensation: Automatic (via RTD) or
manual (0-50°C).
Input filter: time constant 1 - 999 sec, default 5 sec.
Response time: 6 seconds to 100% of final reading
Recommended Sensors*
Chlorine: Model 499ACL-01 Free Chlorine or Model
499ACL-02 Total Residual Chlorine
pH: The following pH sensors are recommended for
automatic pH correction of free chlorine readings:
Models: 399-09-62, 399-14, and 399VP-09

Monochloramine

The Model 1056 is compatible with the Model 499A CL-03
Monochloramine sensor.
compensates readings for changes in membrane
permeability caused by temperature changes. Because
monochloramine measurement is not affected by pH of
the process, no pH sensor or correction is required. For
more information concerning the use and operation of the
amperometric chlorine sensors, refer to the product data
sheets.
Performance Specifications
Resolution: 0.001 ppm or 0.01 ppm – selectable
Input Range: 0nA – 100 A
Temperature compensation: Automatic (via RTD) or
manual (0-50°C).
Input filter: time constant 1 - 999 sec, default 5 sec.
Response time: 6 seconds to 100% of final reading
8

1.8 Chlorine (Code -24 and -34)

The Model 1056 fully
Section 1.0: Description and Specification
Recommended Sensors
Rosemount Model 499ACL-03 Monochloramine sensor

pH-Independent Free Chlorine

The 1056 is compatible with the Model 498CL-01 pH-
independent free chlorine sensor. The Model 498CL-01
sensor is intended for the continuous determination of
free chlorine (hypochlorous acid plus hypochlorite ion)
in water. The primary application is measuring chlorine
in drinking water. The sensor requires no acid pre-treat-
ment, nor is an auxiliary pH sensor required for pH
correction. The Model 1056 fully compensates free
chlorine readings for changes in membrane
permeability caused by temperature. For more information
concerning the use and operation of the amperometric
chlorine sensors, refer to the product data sheets.
Performance Specifications
Resolution: 0.001 ppm or 0.01 ppm – selectable
Input Range: 0 nA – 100 A
Automatic pH correction: 6.5 to 10.0 pH
Temperature compensation: Automatic (via RTD) or
manual (0-50°C).
Input filter: time constant 1 - 999 sec, default 5 sec.
Response time: 6 seconds to 100% of final reading
Recommended Sensors
Rosemount Model 498CL-01 pH independent free
chlorine sensor
Chlorine sensors with Variopol connection
and cable connection
Model 498CL-01
April 2017