Yokogawa CA700 pressure calibrator

Yokogawa CA700 pressure calibrator

Overview

This document is an introductory guide for Yokogawa CA700 pressure calibrator (11th edition, released in May 2024). Its core function is to guide users in safely operating the equipment, covering key content such as product packaging inspection, safety specifications, basic operating procedures, pressure transmitter calibration methods, troubleshooting, and technical parameters. The content of the manual may change with product performance upgrades, and the latest version needs to be obtained through the official website. It also provides access to user registration, technical support contact information, and multilingual supporting documents (such as Chinese specific documents and European language safety manuals).

Product packaging and model identification

（1） Packaging inspection

Product confirmation: After unboxing, the equipment model and suffix code need to be checked. Model CA700 is the basic model of the pressure calibrator, and the suffix code includes the region (- E corresponds to regions other than Japan), pressure specification (-01 is 200kPa gauge pressure, -02 is 1000kPa gauge pressure, -03 is 3500kPa gauge pressure), unit type (- U1 is international unit, - U2 is international and non international unit), input interface (- P1 is Rc1/4 internal thread, - P2 is 1/4NPT internal thread), which needs to be confirmed to be consistent with the order based on the equipment nameplate (located on the back panel).

Standard accessories: including signal cable (98064, red and black pair), shoulder strap (B8070CY), adapter connector (91080/91081 adapter - P1 interface, 91082 adapter - P2 interface), 6 AA alkaline dry batteries (A1070EB), accessory box (B9108XA), ferrite core (A1193MN, 2 pieces), pressure input port cover (L4060CL, pre installed in the equipment) and various documents. It is necessary to confirm that the accessories are complete and have no external damage. Standard accessories do not enjoy equipment warranty service.

Optional accessories: Includes low-pressure manual pump kit (91070, including pump, box, connector), pneumatic pressure pump kit (91074, including pump, box, connector), hydraulic pressure pump kit, etc., which need to be purchased separately and do not enjoy equipment warranty. Some accessories (such as PM100 series shielding meter models) require equipment firmware version support (-05 requires 1.10 or above, -06 requires 1.20 or above).

（2） Connector specifications

The external dimensions of the adapter connector (91080/91081/91082) have clear standards, such as a length of 26.9mm, a diameter of 7.1mm, and a surface engraved with the "NPT" symbol; 91081 length 36.1mm, diameter 7.1mm, also engraved with "NPT"; The size of 91082 is the same as 91080 but without identification. It should be selected correctly according to the interface type to avoid pressure leakage caused by improper connection.

Safety regulations and symbol explanations

（1） Symbol rules

Unit distinction: The prefix "k" represents 1000 (e.g. 100 kS/s, sampling rate), and "K" represents 1024 (e.g. 720 KB, file size); Bold characters in the operation steps represent panel buttons, soft keys, and screen menu options, making it easy for users to quickly locate the operation object.

Warning symbols: including Warning (indicating operations and preventive measures that may cause serious or fatal injuries), CAUTION (indicating operations and preventive measures that may cause minor injuries, equipment damage, or data loss), Note (indicating important information for correct equipment operation), and providing French reference instructions, suitable for multilingual usage scenarios.

Equipment symbol: The "Caution" symbol marked on the equipment indicates the need to refer to the manual for special operating instructions; The grounding symbol is a functional grounding terminal (cannot be used as a protective grounding); The AC/DC symbol and power switch symbol correspond to AC/DC input and power control respectively, and must be strictly operated according to the symbol instructions.

（2） Core Security Guidelines

Scope of use: The device is only used for pressure equipment calibration and can measure and generate DC current/voltage, measure pressure. It is strictly prohibited to use beyond the range. If it cannot be used to measure the main power supply or belongs to measurement categories II, III, IV, the device measurement category is "Other (O)" and is only suitable for circuits that are not directly connected to the main power supply.

Environmental restrictions: The equipment protection level is IP54 and cannot be used in environments beyond this level; The working temperature range is -10~50 ℃, humidity is 20%~80% (non condensing), and the working altitude does not exceed 2000m. It belongs to Class A industrial environment products and may cause radio interference when used in residential areas. Users need to solve the interference problem by themselves.

Pressure safety: When measuring high-pressure fluids, it is necessary to use pressure resistant pipelines and connectors, check for leaks and ensure that the joints are tight. Gas measurements of 1MPa and above must comply with high-pressure gas safety regulations; It is strictly prohibited to measure flammable, explosive, toxic, corrosive fluids and high-temperature fluids/gas-liquid mixtures above 50 ℃. Gas measurement must ensure dryness and cleanliness, and avoid high humidity and high oil content air; The pressure input should not exceed the allowable range (e.g. CA700-01 allows positive pressure of 500kPa, CA700-02 is 3000kPa, CA700- * -03 is 4500kPa). Overpressure may cause equipment damage or personal injury.