Emerson Rosemount 644H Quick Start Manual page 19

January 2016
N3 China Type n
Certificate: GYJ101421
Standards: GB3836.1-2000, GB3836.8-2003
Markings: Ex nA nL IIC T5/T6
Special Conditions for Safe Use (X):
1. The relation among T code, ambient temperature range is as following:
For 644 Fieldbus, PROFIBUS, and Legacy 644 HART:
T code
T5
For Enhanced 644 HART:
T code
T6
T5
2. Maximum input voltage: 42.4 V.
3. Cable glands, conduit or blanking plugs, certified by NEPSI with Ex e or Ex n protection
type and appropriate thread type and IP54 degree, should be used on external
connections and redundant cable entries.
4. Maintenance should be done in non-hazardous location.
5. End users are not permitted to change any components inside, but to settle the problem
in conjunction with manufacturer to avoid damage to the product
6. During installation, use and maintenance of this product, observe the following
standards:
GB3836.13-1997 "Electrical apparatus for explosive gas atmospheres
Part 13: Repair and overhaul for apparatus used in explosive gas atmospheres".
GB3836.15-2000 "Electrical apparatus for explosive gas atmospheres
Part 15: Electrical installations in hazardous area (other than mines)".
GB3836.16-2006 "Electrical apparatus for explosive gas atmospheres
Part 16: Inspection and maintenance of electrical installation (other than mines)".
GB50257-1996 "Code for construction and acceptance of electric device for explosion
atmospheres and fire hazard electrical equipment installation engineering".
EAC - Belarus, Kazakhstan, Russia
EM Technical Regulation Customs Union (EAC) Flameproof
Certificate: RU C-US.GB05.B.00289
Standards: GOST R IEC 60079-0-2011, GOST IEC 60079-1-2011
Markings: 1Ex d IIC T6...T1 Gb X, T6(-50 °C
Special Condition for Safe Use (X):
1. See certificate for special conditions.
IM Technical Regulation Customs Union (EAC) Intrinsic Safety
Certificate: RU C-US.GB05.B.00289
Standards: GOST R IEC 60079-0-2011, GOST R IEC 60079-11-2010
Markings: [HART]: 0Ex ia IIC T4...T6 Ga X; [Fieldbus/PROFIBUS]: 0Ex ia IIC T4 Ga X
Special Condition for Safe Use (X):
1. See certificate for special conditions.
Ambient temperature
-40 °C ≤ T ≤ +70 °C
a
Ambient temperature
≤ ≤
-60 °C T +40 °C
a
≤ ≤
-60 °C T +85 °C
a
IP65/IP66/IP68
≤ ≤
T +40 °C), T5...T1(-50 °C
a
Quick Start Guide
≤ ≤
T +60 °C);
a
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