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 Experience swift, hassle-free installation with the innovative Quick. Start programming ensures seamless auto-recognition of sensor boards, complemented by an ingeniously modular design.
n Effortlessly access vital data at a glance, thanks to the large, fully customizable displaythat caters to your unique needs.
n Enjoy enhanced visibility of critical process parameters by leveraging advanced HART or Profibus DP digital communication systems.

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. Please note: This model is not compatible with Turbidity Measurements. Ensure compatibility before purchase.
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: Durable Polycarbonate offering robust protection.
Rating: Industry-standard Type 4X and IP65 for optimal resilience.
Dimensions: A compact 6.10 in. L x 6.10 in. W x 5.45 in. H, (155 mm x 155 mm x 131 mm) for versatile installations.
Conduit openings: Accommodates 1/2 in. or PG 13.5 conduit fittings for flexible connectivity.
Display
Features: Tailored to user preferences, offering a monochromatic graphic liquid crystal backlit display for enhanced clarity.
Display Resolution: Crisp 128 x 96 pixel resolution.
Dimensions: 3.8 in. (Diagonal) ensures clear visibility.
Ambient Conditions
Temperature: Designed for a range of 32 to 131 °F (0 to 55 °C) ensuring reliability across various environments.
Temperature for Turbidity: Stable at 32 Operating Temperature Range: -4 to 122 °F (0 to 50 °C), ensuring peak performance in diverse conditions.
Relative Humidity Tolerance: 5 to 95%, featuring a non-condensing environment for optimal reliability.
Storage Temperature: A robust -4 to 140 °F (-20 to 60 °C), ideal for various storage needs.
Power
Option 01: Compatible with 115 Vac ±15% at 60 Hz ±6%, consuming a minimal 10 W;
also 230 Vac ±15% at 50 Hz ±6%, and requires only 10 W for operation. Option 02: Suited for 20 to 30 Vdc, demanding 15 W of power.
Option 03: Ranges from 84 to 265 Vac, at frequencies of 47 to 63.0 Hz. It also requires 15 W.
Power option codes 02 and 03 are enhanced by four programmable relays for superior functionality.
Crafted with double insulation for equipment protection.
Relays: Form C, SPDT,
epoxy sealed to ensure durability. Handles Inductive Load: 1/8 HP motor
Maximum Relay Current |
|
Resistive |
28 Vdc |
5.0 A |
115 Vac |
5.0 A |
230 Vac |
5.0 A |
or (maximum capacity) at 115/230Vac for flexible applications.
*Relays exclusively available with option 02 power supply (20 - 30 Vdc) or 03 switching power supply (84 - 265Vac) for seamless operation.
Alarm Relays
Feature four configurable alarm relays for processmeasurements as alarms or faults, featuring customizable interval timer settings.
Terminal Wire Sizes
Power: Supports 24-12 AWG for a range of connections.
Analog outputs: Compatible with 26-16 AWG for precise output.
Relays: Functions with 24-12 AWG for reliable relay operations.
Weight/Shipping Weight
(approximate)rounded to nearest measurement for easy handling. 1 lb. or 0.5 kg)
3 lb./4 l
Specifications
General Analyzer
Enclosure
Material: Crafted from robust Polycarbonate, ensuring durability in various environments.
Rating: Designed to meet Type 4X and IP66 standards, offering excellent resistance to dust and water.
Dimensions: 6.10 in. L x 6.10 in. W x 5.45 in. H (155 mm x 155 mm x 131 mm), compact and space-efficient.
Conduit openings: Versatile 1/2 in. or PG 13.5conduit fittings, tailored for diverse setups.
Display
Features: Offers user customizable options with a sophisticated monochromatic graphic liquid crystal display, lacking backlight but enhancing clarity.
Display Resolution: Featuring a crisp 128 x 96 pixel display resolution for clear readability
Dimensions: Generous 3.8 in. (Diagonal) screen for easy data visibility.
Ambient Conditions
Temperature: Operates seamlessly from -4 to 131 °F (-20 to 65 °C), adaptable to varying climates.
Relative Humidity: Stable performance in 5 to 95% (non-condensing) environments.
Power
Minimum Voltage: Efficiently operates at 12.7 Vdc
External Load Resistor for HART: Requires 250 Ohms
Terminal Wire Sizes
Power: Compatible with 26-16 AWG
Sensor Inputs: Accommodates 26-16 AWG
Weight/Shipping Weight
(Rounded to nearest 1 lb. or 0.5 kg)
2 lb./ 3 lb. (1 Kg/ 1.5 kg), accommodating various transport needs.
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.C22.2 No. 142-M1987; C22.2 No. 157-M1992; C22.2 No. 213-M1987; C22.2 No. 60529:05O. 60529:05
ATEX: Complies with IEC 60079-0:2011 and 60079-11:2011
IECEx: Adheres to IEC 60079-0: 2011 Edition: 6.0 and IEC 60079-11: 2011-06 Edition: 6.0 6.0, I EC 60079-11: 2011-06 Edition: 6.0
FM: Meets standards 3600: 2011, 3610: 2010, 3611: 2004, 3810: 2005, as well as IEC 60529:2004, ANSI/IEC standards: 60079-0: 2009, 60079-11: 2009
Radio Frequency Immunity/Electromagnetic Interference (RFI/EMI) Standards:
EN-61326 Compliance
Company Profile
Cold Valley Intelligent Technology (Shanghai) Co., Ltd. is a cornerstone of innovation within the esteemed Hanshan (Cold Mountain) Intelligent Technology Co. group, known for its pioneering spirit and commitment to excellence.
Nestled in the vibrant metropolis of Shanghai since its inception in 2013, our company is at the forefront of transformative technological advancements. As part of the Hanshan Intelligent Technology Co., Ltd. family, we are heralding a new era of breakthrough innovations.
Our founding team comprises industry veterans with over 20 years of experience from leading global automation enterprises. With two decades in automation engineering and a decade in consulting for groundbreaking digital solutions, our mission is resolute: to deliver exceptional automation and digitalization products and services worldwide. Based strategically in Shanghai, China, we represent the pinnacle of technological advancement.
Boasting more than two decades of profound expertise in the petrochemical sector, we possess unparalleled proficiency in meeting automation and digitalization demands across the entire industry spectrum-upstream, midstream, and downstream. Our superior offerings encompass premium products and comprehensive solutions, meticulously tailored for petroleum, chemical, electric power, biomedicine, APIs, food and beverage, liquor, metallurgy, and non-ferrous metal industries. We ensure outstanding service throughout the product lifecycle.






You may have these questions
How do I select the right product?
A: Upon receiving your inquiry, our extensive technical dossier will provide all the crucial information you need. This comprehensive documentation enables you to thoroughly verify the process parameters and technical specifications relevant to your needs. Leveraging this data, we will expertly recommend the model that perfectly matches your specific requirements.
I would like a confirmed model. Can you provide that?
A: Absolutely. Once you show interest in a particular model, we will conduct a thorough verification process to ensure its ideal suitability. If there are opportunities for cost-effective enhancements, we will eagerly offer optimization suggestions. After receiving your approval, we will prepare a formal quotation, meticulously customized to meet your expectations.