Multi-parameter Transmitter for Liquid Analysis
The Rosemount 1056 Dual Channel Transmitter displays up to two independent liquid analytical measurements. HART and Profibus DP digital communication options allow for connection to HART hosts and Profibus networks. Start-up and installation of the 1056 is easy by using Quick Start Programming.
Independent Dual Input Measurements
n Expandable to two channels of liquid analytical
measurements: pH/ORP, Conductivity, Free Chlorine, Total Chlorine, Dissolved Oxygen, Ozone, and Turbidity.
n Modular boards with auto-recognition of sensor board.
n Large, easy to read, user customizable display of dual
measurements in addition to diagnostic and temperature readings.
Accurate, Linear and Reliable Measurements of Analytical Sensors
- Faster calibration of pH sensors using auto pH Buffer solution detection.
- Linear conductivity measurements with on-board concentration curves for common acids and bases.
- Built-in features to easily display accurate amperometric measurements.
1056 Dual Channel Transmitter
Rosemount 1056 Dual Channel Transmitter is a line powered device that can accept inputs
from pH/ORP, ISE, flow, conductivity (contacting and toroidal), turbidity, and amperometric (dissolved oxygen, chlorine, and ozone) sensors.
n Faster installation using Quick Start programming, auto-recognition of sensor boards and modular design.
n At a glance view of pertinent information provided by the large customizable display.
n Visibility of process parameters by utilizing HART or Profibus DP digital communications.

Additional Information
Table 1. Rosemount 1056 Dual Channel Transmitter Ordering Information
Model |
Transmitter type |
1056 |
Dual channel transmitter |
Power |
01 |
115/230 Vac, 50/60 Hz no relays (1) |
02 |
24 Vdc with four alarm relays |
03 |
85-265 Vac switching, 50/60 Hz with four alarm relays |
Measurement 1 |
20 |
Contacting conductivity |
21 |
Toroidal conductivity |
22 |
pH/ORP/ISE |
23 |
Flow/current input |
24 |
Chlorine |
25 |
Dissolved oxygen |
26 |
Ozone |
27 |
Turbidity |
Measurement 2 |
30 |
Contacting conductivity |
31 |
Toroidal conductivity |
32 |
pH/ORP/ISE |
33 |
Flow/current input |
34 |
Chlorine |
35 |
Dissolved oxygen |
Table 1. Rosemount 1056 Dual Channel Transmitter Ordering Information(continued)
36 |
Ozone |
37 |
Turbidity |
38 |
None |
Communication |
AN |
4-20 mA analog |
DP |
Profibus DP digital communication |
HT |
HART® digital communication |
UL Approval |
- |
CSA/FM approval |
UL |
UL approval |
1. Not compatible with Turbidity Measurements.
Table 2. Rosemount 1056 Dual Channel Transmitter Accessories List
Part Number |
Description |
23554-00 |
Cable gland kit (Qty 5) |
23820-00 |
2 in. pipe mounting kit (Includes U-bolts, mounting bracket, nuts, washers, and screws) |
23820-01 |
2 in. stainless steel pipe mounting kit (Includes U-bolts, mounting bracket, nuts, washers and screws) |
9240048-00 |
Stainless steel tag (customer specified marking) |
Specifications
General Analyzer
Enclosure
Material: Polycarbonate.
Rating: Type 4X and IP65.
Dimensions: 6.10 in. L x 6.10 in. W x 5.45 in. H (155 mm x 155 mm x 131 mm)
Conduit openings: 1/2 in. or PG 13.5 conduit fittings.
Display
Features: User customizable, monochromatic graphic liquid crystal, backlit display.
Display Resolution: 128 x 96 pixel display resolution.
Dimensions: 3.8 in. (Diagonal)
Ambient Conditions
Temperature: 32 to 131 °F (0 to 55 °C)
Temperature for Turbidity: 32 to 122 °F (0 to 50 °C)
Relative Humidity: 5 to 95% (non-condensing)
Storage Temperature: -4 to 140 °F (-20 to 60 °C)
Power
01: 115 Vac ±15% 60 Hz ±6%, 10 W;
230 Vac ±15% 50 Hz ±6%, 10 W. 02: 20 to 30 Vdc. 15 W.
03: 84 to 265 Vac, 47 to 63.0 Hz. 15 W.
Power option codes 02 and 03 include four programmable relays.
Equipment protected by double insulation.
Relays
Form C, SPDT, epoxy sealed
Maximum Relay Current |
|
Resistive |
28 Vdc |
5.0 A |
115 Vac |
5.0 A |
230 Vac |
5.0 A |
Inductive Load: 1/8 HP motor (maximum) at 115/230 Vac
*Relays only available with option 02 power supply (20 - 30 Vdc) or 03 switching power supply (84 - 265 Vac)
Alarm Relays
Four configurable alarm relays for process measurement as alarms or faults with interval timer settings.
Terminal Wire Sizes
Power: 24-12 AWG
Analog outputs: 26-16 AWG
Relays: 24-12 AWG
Weight/Shipping Weight
(rounded to nearest 1 lb. or 0.5 kg)
3 lb./4 l
Specifications
General Analyzer
Enclosure
Material: Polycarbonate.
Rating: Type 4X and IP66.
Dimensions: 6.10 in. L x 6.10 in. W x 5.45 in. H (155 mm x 155 mm x 131 mm)
Conduit openings: 1/2 in. or PG 13.5 conduit fittings.
Display
Features: User customizable, monochromatic graphic liquid crystal, no backlight
Display Resolution: 128 x 96 pixel display resolution
Dimensions: 3.8 in. (Diagonal)
Ambient Conditions
Temperature: -4 to 131 °F (-20 to 65 °C)
Relative Humidity: 5 to 95% (non-condensing)
Power
Minimum Voltage: 12.7 Vdc
External Load Resistor for HART: 250 Ohms
Terminal Wire Sizes
Power: 26-16 AWG
Sensor Inputs: 26-16 AWG
Weight/Shipping Weight
(rounded to nearest 1 lb. or 0.5 kg)
2 lb./ 3 lb. (1 Kg/ 1.5 kg)
Product Certifications
Hazardous Location Approvals(Not available for DP)
Complies with the Following Standards
CSA: C22.2 no 0 - 10; C22.2 no 0.4 - 04; C22.2 no. 25-M1966; C22.2 no. 94-M1991; C22.2 no.142-M1987; C22.2 no. 157- M1992; C22.2 no. 213-M1987; C22.2 no. 60529:05
ATEX: IEC 60079-0:2011, 60079-11:2011
IECEx: IEC 60079-0: 2011 Edition: 6.0, I EC 60079-11: 2011-06 Edition: 6.0
FM: 3600: 2011, 3610: 2010, 3611: 2004, 3810: 2005, IEC 60529:2004, AnSI/IEC 60079-0: 2009,AnSI/IEC 60079-11: 2009
Radio Frequency Immunity/Electromagnetic Interference (RFI/EMI)
EN-61326
Company Profile
Cold Valley Intelligent Technology (Shanghai) Co., Ltd. stands as a key pillar in the Hanshan (Cold Mountain) Intelligent Technology Co. family, a vanguard of innovation and excellence.
Proudly rooted in the dynamic cityscape of Shanghai since 2013, our operations herald a new dawn in technological breakthroughs as part of Hanshan Intelligent Technology Co., Ltd. group.
Our founding team, a cadre of seasoned professionals from global automation titans, brings together over 20 years of industry acumen, over two decades in automation engineering, and ten years of adeptness in consulting and implementing avant-garde digital solutions. Our mission is unwavering: to supply superior automation and digitization products and services globally. Strategically positioned in Shanghai, China, our company shines as a beacon of cutting-edge technology.
With a formidable legacy exceeding two decades in the petrochemical arena, we boast unmatched expertise in addressing automation and digitalization needs across the extensive industry landscape-upstream, midstream, and downstream. Our offerings include premium products and holistic solutions, carefully tailored for petroleum, chemical, electric power, biomedicine, APIs, food and beverage, liquor, metallurgy, and non-ferrous metal industries, ensuring exemplary service throughout the product's lifecycle.






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