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Quick Start Guide
Certificate: 3044581 [Headmount HART]
Standards: FM Class 3600: 2011, FM Class 3610: 2010, FM Class 3611: 2004,
FM Class 3810: 2005, ANSI/NEMA - 250: 1991, ANSI/IEC 60529: 2004;
ANSI/ISA 60079-0: 2009; ANSI/ISA 60079-11: 2009
Markings: [No Enclosure]: IS CL I, DIV I, GP A, B, C, D T4; CL I ZONE 0 AEx ia IIC T4 Ga;
NI CL I, DIV 2, GP A, B, C, D T5[With Enclosure]: IS CL I / II / III, DIV 1, GP A, B,
C, D, E, F, G; NI CL I, DIV 2, GP A, B, C, D
Special Conditions for Safe Use (X):
1. When no enclosure option is selected, the Model 644 Temperature Transmitter shall be
installed in a final enclosure meeting type of protection IP20 and meeting the
requirements of ANSI/ISA 61010-1 and ANSI/ISA 60079-0.
2. The Model 644 optional housings may contain aluminum and is considered a potential
risk of ignition by impact or friction. Care must be taken during installation and use to
prevent impact and friction.
Canada
I6 Canada Intrinsic Safety and Division 2
Certificate: 1091070
Standards: CAN/CSA C22.2 No. 0-10, CSA Std C22.2 No. 25-1966, CAN/CSA-C22.2
No. 94-M91, CSA Std C22.2 No. 142-M1987, CAN/CSA-C22.2 No. 157-92,
CSA Std C22.2 No. 213-M1987, C22.2 No 60529-05
Markings: [HART] IS CL I GP A, B, C, D T4/T6; CL I, ZONE 0 IIC; CL I, DIV 2, GP A, B, C, D
[Fieldbus/PROFIBUS] IS CL I GP A, B, C, D T4; CL I, ZONE 0 IIC; CL I, DIV 2, GP
A, B, C, D
K6 Canada Explosionproof, Dust-Ignitionproof, Intrinsic Safety and Division 2
Certificate: 1091070
Standards: CAN/CSA C22.2 No. 0-10, CSA Std C22.2 No. 25-1966, CSA Std. C22.2
No.30-M1986, CAN/CSA-C22.2 No. 94-M91, CSA Std C22.2 No.
142-M1987, CAN/CSA-C22.2 No. 157-92, CSA Std C22.2 No. 213-M1987,
C22.2 No 60529-05
Markings: CL I / II / III, DIV 1, GP B, C, D, E, F, G
See I6 description for Intrinsic Safety and Division 2 markings.
Europe
E1 ATEX Flameproof
Certificate: FM12ATEX0065X
Standards: EN 60079-0: 2012, EN 60079-1: 2007, EN 60529:1991 +A1:2000
Markings: II 2 G Ex d IIC T6…T1 Gb, T6(-50 °C ≤Ta≤+40 °C),
T5…T1(-50 °C ≤Ta≤+60 °C);
See Table 4 for process temperatures.
Special Conditions for Safe Use (X):
1. See certificate for ambient temperature range.
2. The non-metallic label may store an electrostatic charge and become a source of
ignition in Group III environments.
3. Guard the LCD cover against impact energies greater than 4 joules.
4. Consult the manufacturer if dimensional information on the flameproof joints is
necessary.
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