645 series differential pressure
transmitter for liquid
product manual:
Accuracy is ± 0.25%, fast response speed, two-wire system
645 series differential pressure
transmitter for liquid can accept liquid or gas at high and low pressure ports, and adopts sensitive capacitive
sensor. It outputs a linear 4-20 mA signal output and differential pressure with an accuracy of 0.25%. 645 series
transmitters are most suitable for process control,
filter cleaning condition monitoring, refrigeration equipment,
pump multi-level control, HVAC equipment, liquid level monitoring, and more. For easy installation, a three-valve manifold can be selected. It has a built-in bleed port to eliminate air chambers in the pipeline.
Specifications:
Service: Compatible gases or liquids on both pressure and reference sides.
Wetted Materials: 17-4 PH stainless steel, 300 Series stainless steel, fluoroelastomer and silicone O-rings and bleed screw seals.
Accuracy: ± 0.25% FS (RSS).
Temperature Limits: Operating: 0 to 175 ° F (-22 to 80 ° C); Storage: -65 to 260 ° F (-54 to 126 ° C).
Pressure Limits: (High side) 1 to 5 psi: 20 x FS, 10 to 25 psi: 10 x FS, 50 psi: 5 x FS, 100 psi: 2.5 x FS; (low side) 2.5 x FS.
Thermal Effects: (includes zero and span) ± 0.02% FS / ° F, 30 to 150 ° F (-1 to 65 ° C).
Power Requirements: 11 to 30 VDC.
Output Signal: 4 to 20 mA, 2-wire.
Zero and Span Adjustments: Adjustable, ± 1 mA, non-interactive.
Response Time: 30 to 50 ms.
Loop Resistance: 0 to 1000Ω.
Electrical Connection: Barrier strip terminal block with conduit enclosure and .875 "(22 mm) dia
meter conduit opening.
Process Connection: 1/4 "-18 female NPT.
Housing: Stainless steel / aluminum, NEMA 4X (IP56).
Weight: 14.4 oz (0.4 kg).
Agency Approvals: CE.
3-Valve Manifold Assembly
Manifold: Brass.
Valve Type: 90 ° on / off.
Process Connection: 1/4 "-18 female NPT.
Professional manufacturing and professional services, KUNAG creates more value for you
Continuously improving the quality of services and keeping improving, "sincere service" is the eternal theme of KUNAG. Kunag strictly complies with the requirements of ISO9001-2000 quality system certification, strictly controls the quality and responsibilities to the people to ensure the healthy operation of production, sales and service. To strengthen communication with customers and to provide our customers with quality products and perfect service, we hereby make the following commitments:
Product Standards
Products are designed, manufactured, and inspected strictly in accordance with China\'s GB, HG standards, and US API standards. The hardness of the sealing surface meets the national requirements and the width exceeds the national standard.
pre-sale service
Product introduction, technical communication, non-standard product design, troubleshooting.
Sale service
Trustworthy contracts, guarantee timely delivery, and keep in touch with customers at any time.
For special or complex products, our factory arranges technicians to train and guide users on product use, troubleshooting, tuning and maintenance.
After sales service
The warranty period of Weitong products is 12 months from the factory, and the "three guarantees" service (return, replacement, repair) is implemented.
During the use of our products, our factory regularly organizes technical and inspection personnel to visit and solicit user feedback on product quality, use conditions, and improvement opinions in order to further improve product quality.
Quickly respond to customer complaints about product quality problems, and after-sales service personnel rushed to the scene within 24-36 hours (48 hours outside the province).
For after-sales service, users are required to fill in the quality feedback form after the service and make appraisal opinions, while improving Guardian\'s service quality.
Order process
Landline: 021-59718851 (AM-8: 30 to PM-17: 30)
Mobile phone: 18918462396 (WeChat same number 24-hour service)
QQ: 2030185432
Email: kunage@126.com
Receive customer purchase list, provide customers with valve model selection and quotation (price list).
Specific agreement: delivery time, special requirements, etc.
download Google:
Customers have special requirements for products, and must provide the following instructions in the order contract:
(1) Structure length;
(2) Connection form;
(3) Nominal diameter, full diameter, reduced diameter, pipe size;
(4) Operating medium, temperature and pressure range;
(5) Experiment, inspection standards and other requirements;
(6) Various driving devices can be configured in this field according to the special requirements of customers;
If the determined valve type and model are provided by the customer, the customer should correctly explain the meaning and requirements of its model, and sign the contract under the conditions that the supply and demand sides understand and agree.
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