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May 2023
5.7
International
5.7.1 IECEx Intrinsic Safety
Certificate
Standards
Markings
Special Conditions for Safe Use (X):
1. All pH/ORP sensor models with a plastic enclosure or exposed
plastic parts may provide an electrostatic ignition hazard and
must only be cleaned with a damp cloth to avoid the danger of
ignition due to build-up of electrostatic charge.
2. All pH/ORP sensor models with a metallic enclosure may
provide a risk of ignition by impact or friction. Care should be
taken during installation to protect the sensor from the risk.
3. External connections to the sensor must be suitably
terminated and provide a degree of protection of at least IP20.
4. All pH/ORP sensor models are intended to be in contact with
the process fluid and may not meet the 500V r.m.s. test to
earth. This must be taken into consideration at installation.
5.8
China
5.8.1 China Intrinsic Safety
Certificate
Standards
Markings
Special Conditions for Safe Use (X):
1. It is strictly forbidden to rub the plastic shell parts of the
product to prevent the risk of static ignition.
Quick Start Guide
IECEx BAS 10.0083X
IEC 60079-0: 2011, IEC 60079-11: 2011
pH/ORP sensors with no preamplifier fitted
Ex ia IIC T4 Ga (–20 °C to +60 °C)
pH sensors with integral smart preamplifier fitted
Ex ia IIC T4 Ga (–20 °C to +60 °C)
ORP sensors with integral standard preamplifier fitted
Ex ia IIC T4 Ga (–20 °C to +80 °C)
Ex ia IIC T5 Ga (–20 °C to +40 °C)
pH sensors with integral standard preamplifier fitted
Ex ia IIC T4 Ga (–20 °C to +80 °C)
Ex ia IIC T5 Ga (–20 °C to +40 °C)
GYB19.1035X
GB 3836.1-2010, GB 3836.4-2010, GB 3836.20-2010
Ex ia II C T4 Ga (–20 °C to +60 °C)
Quick Start Guide
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