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
µ
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. The Model 1056 fully
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
µ
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
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
µ
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
1.8 Chlorine (Code -24 and -34)
Chlorine sensors with Variopol connection
and cable connection
Model 498CL-01
8
Instruction Manual
LIQ-MAN-1056
Section 1.0: Description and Specification
April 2017
Summary of Contents for Rosemount 1056
Page 4: ...Quick Start Guide Figure A Quick Start Guide ...
Page 5: ...Quick Reference Guide Figure B Model 1056 Menu Tree ...
Page 28: ...20 Instruction Manual LIQ MAN 1056 Section 2 0 Installation April 2017 ...
Page 50: ...42 Instruction Manual LIQ MAN 1056 Section 6 0 Programming the Measurements April 2017 ...
Page 84: ...76 Instruction Manual LIQ MAN 1056 Section 6 0 Programming the Measurements April 2017 ...
Page 122: ...114 Instruction Manual LIQ MAN 1056 Section 7 0 Calibration April 2017 ...
Page 124: ...116 Instruction Manual LIQ MAN 1056 Section 8 0 Return of Material April 2017 ...
