User’s

Manual

DX1000/DX1000N/DX2000/DX1000T/DX2000T

Usage Precautions

Safety Precautions

• This instrument conforms to IEC safety class I (provided with terminal for protective grounding), Overvoltage

Category II or I, and EN61326-1 (EMC standard), Measurement Category II (CAT II)*.

* Measurement category II (CAT II) applies to measuring circuits connected to low voltage installation, and

electrical instruments supplied with power from xed equipment such as electric switchboards.

• This instrument is an EN61326-1 (EMC standard) class A instrument (for use in commercial, industrial, or

business environments). The influence rate (judgment condition A) in the immunity test environment is within ±10

% of the range or ±10 mV (50V range only, ±20 % of the range).

• When the voltage beyond the test voltage of the static electrostatic discharge (direct contact 4 KV and air gap

8 KV) prescribed by EN61326 was impressed on a front operating panel of this equipment, there is a fear that

equipment breaks down. (DX1000/DX1000N)

• The general safety precautions described here must be observed during all phases of operation. If the DX is

used in a manner not described in this manual, the DX safety features may be impaired. Yokogawa Electric

Corporation assumes no liability for the customer’s failure to comply with these requirements.

• The DX is designed for indoor use.

• About the User’s Manuals

• Please pass the user’s manuals to the end user. We also ask you to store the user’s manuals in a safe place.

• Read the user’s manuals thoroughly and have a clear understanding of the product before operation.

�� The user’s manuals explain the functions of the product. They does not guarantee that the product will suit a

particular purpose of the user.

• Precautions Related to the Protection, Safety, and Alteration of the Product

The following safety symbols are used on the product and in the user’s manuals.

“Handle with care.” To avoid injury and damage to

the instrument, the operator must refer to the

explanation in the manual.

Protective ground terminal

Functional ground terminal (do not use this terminal

as a protective ground terminal.)

Alternating current

Direct current

ON (power)

OFF (power)

• For the protection and safe use of the product and the system in which this product is incorporated, be sure to

follow the instructions and precautions on safety that are stated in this manual whenever you handle the product.

Take special note that if you handle the product in a manner that violates these instructions, the protection

functionality of the product may be damaged or impaired. In such cases, YOKOGAWA does not guarantee the

quality, performance, function, and safety of product.

• When installing protection and/or safety circuits such as lightning protection devices and equipment for the

product and control system or designing or installing separate protection and/or safety circuits for fool-proof

design and fail-safe design of the processes and lines that use the product and the control system, the user

should implement these using additional devices and equipment.

• If you are replacing parts or consumable items of the product, make sure to use parts specified by YOKOGAWA.

• This product is not designed or manufactured to be used in critical applications that directly affect or threaten

human lives. Such applications include nuclear power equipment, devices using radioactivity, railway facilities,

aviation equipment, air navigation facilities, aviation facilities, and medical equipment. If so used, it is the user’s

responsibility to include in the system additional equipment and devices that ensure personnel safety.

• Do not modify this product.

IM 04L41B01-92EN

4th Edition: May, 2019

IM 04L41B01-92EN

WARNING

• Use the Correct Power Supply

Ensure that the source voltage matches the voltage of the power supply before turning ON the power. In the case of a

desktop type, ensure that it is within the maximum rated voltage range of the provided power cord before connecting

the power cord.

• Use the Correct Power Cord and Plug (Desktop Type)

To prevent electric shock or fire, be sure to use the power cord supplied by YOKOGAWA. The main power plug must be

plugged into an outlet with a protective earth terminal. Do not disable this protection by using an extension cord without

protective earth grounding.

The power cord is designed for use with this instrument. Do not use the power cord with other instruments.

• Connect the Protective Grounding Terminal

Make sure to connect the protective grounding to prevent electric shock before turning ON the power.

The power cord that comes with the desktop type is a three-prong type power cord. Connect the power cord to a

properly grounded three-prong outlet.

• Do Not Impair the Protective Grounding

Never cut off the internal or external protective grounding wire or disconnect the wiring of the protective grounding

terminal. Doing so invalidates the protective functions of the instrument and poses a potential shock hazard.

• Do Not Operate with Defective Protective Grounding

Do not operate the instrument if the protective grounding might be defective. Also, make sure to check them before

operation.

• Do Not Operate in an Explosive Atmosphere

Do not operate the instrument in the presence of flammable liquids or vapors. Operation in such an environment

constitutes a safety hazard.

Prolonged use in a highly dense corrosive gas (H2S, SOx, etc.) will cause a malfunction.

• Do Not Remove Covers

The cover should be removed by YOKOGAWA’s qualified personnel only. Opening the cover is dangerous, because

some areas inside the instrument have high voltages.

• Ground the Instrument before Making External Connections

Connect the protective grounding before connecting to the item under measurement or control unit.

• Damage to the Protection

Operating the instrument in a manner not described in this manual may damage the instrument’s protection.

CAUTION

This instrument is a Class A product. Operation of this instrument in a residential area may cause radio interference, in

which case the user is required to take appropriate measures to correct the interference.

• Exemption from Responsibility

• YOKOGAWA makes no warranties regarding the product except those stated in the WARRANTY that is provided

separately.

• YOKOGAWA assumes no liability to any party for any loss or damage, direct or indirect, caused by the user or

any unpredictable defect of the product.