For the safe use of this equipment, Danger, Warning – Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 User Manual

Page 5: Caution

IM 11M13A01-02E

᭜ For the safe use of this equipment

WARNING

Requirements for explosionproof use:

The ZR22S is connected to a ZR402G or AV550G*

that is mounted in a non-hazardous

area.

The ambient temperature is in the range -20 to +60

ЊC. The surface temperature of the

ZR22S is not over the temperature class T2 (300

ЊC)*

*1: Refer to IM 11M12D01-01E
*2: The terminal box temperature does not exceed 150

ЊC.

CAUTION

The cell (sensor) at the tip of the detector is made of ceramic (zirconia element). Do not
drop the detector or subject it to pressure stress.

• Do NOT allow the sensor (probe tip) to make contact with anything when installing

the detector.

• Avoid any water dropping directly on the probe (sensor) of the detector when install-

ing it.

• Check the calibration gas piping before introducing the calibration gas to ensure that

there is no leakage of the gas. If there is any leakage of the gas, the moisture drawn
from the measured gas may damage the sensor.

• The detector (especially at the tip) becomes very hot. Be sure to handle it with gloves.

DANGER

EXAxtZR is very heavy. Handle it with care. Do not drop it. Handle safely to avoid
injury.

Connect the power supply cord only after confirming that the supply voltage matches
the rating of this equipment. In addition, confirm that the power is switched off when
connecting power supply.

Some process gas is dangerous to people. When removing this equipment from the
process line for maintenance or other reasons, protect yourself from potential poisoning
by using a protective mask or ventilating the area well.

(1) About This Manual

• This manual should be passed on to the end user.
• The contents of this manual are subject to change without prior notice.
• The contents of this manual shall not be reproduced or copied, in part or in whole,

without permission.

• This manual explains the functions contained in this product, but does not warrant that

those will suit the particular purpose of the user.