Fisher 3660 Instruction Manual page 4

3660 and 3661 Positioners
September 2015
Table 1. Specifications (Continued)
Hazardous Area Classification for 3661
CSA & FM—Intrinsically Safe, Type n, Non‐incendive
ATEX & IECEx—Intrinsically Safe, Type n
(Gas Atmospheres Only)
Refer to Hazardous Area Classifications and Special
Instructions for "Safe Use" and Installation in
Hazardous Locations, starting on page 5, for
additional information.
Housing Classification for 3661
CSA—Type 3 Encl.
FM—NEMA 3, IP54
ATEX & IECEx—IP44
Mounting orientation requires vent location to be
below horizontal.
Other Classifications/Certifications for 3661
CUTR—Customs Union Technical Regulations (Russia,
Kazakhstan, Belarus, and Armenia)
INMETRO— National Institute of Metrology, Quality,
and Technology (Brazil)
KGS—Korea Gas Safety Corporation (South Korea)
Contact your Emerson Process Management sales
office for classification/certification specific
information
Mounting
The positioner can be mounted in one of four
different configurations. See figure 2 for mounting.
Pressure Connections
1/4 NPT internal
NOTE: Specialized instrument terms are defined in ANSI/ISA Standard 51.1 - Process Instrument Terminology.
1. The pressure/temperature limits in this manual and any applicable standard or code limitation should not be exceeded.
2. Hysteresis value at a gain setting of 1/2 turn.
3. Adjusting the gain (PB) adjustment changes the nozzle flapper relationship. This nozzle flapper change affects the actuator/positioner response time.
3
4. Normal m /hr—normal cubic meters per hour (0°C and 1.01325 bar absolute); Scfh—standard cubic feet per hour (60°F and 14.7 psia).
5. Air consumption at a gain setting of 1/2 turn.
6. At supply pressure of 2.4 bar (35 psig).
Table 2. Fisher 3661 Positioner EMC Summary Results—Immunity
Port Phenomenon
Electrostatic discharge (ESD)
Enclosure
Radiated EM field
Rated power frequency magnetic field
Burst
I/O
Surge
signal/control
Conducted RF
Specification limit = ±1% of span
1. A = No degradation during testing. B = Temporary degradation during testing, but is self‐recovering.
4
Conduit Connection for 3661
1/2 NPT (M20 or PG13 adaptors, optional)
Maximum Valve Stem Travel
Two ranges:
J 50 mm (2 inch) to 20 mm (0.75 inch) minimum;
J 20 mm (0.75 inch) adjustable to lesser travel with
standard input signal
Approximate Weight
3660: 1.2 kg (2.6 pounds)
3661: 1.4 kg (3.0 pounds)
Vent Connection
1/4 NPT internal
Options
3660: J Instrument and output pressure gauges,
J Integrally mounted bypass valve
3661: Output pressure gauge
Declaration of SEP
Fisher Controls International LLC declares this
product to be in compliance with Article 3 paragraph
3 of the Pressure Equipment Directive (PED) 97 / 23 /
EC. It was designed and manufactured in accordance
with Sound Engineering Practice (SEP) and cannot
bear the CE marking related to PED compliance.
However, the product may bear the CE marking to
indicate compliance with other applicable European
Community Directives.
Basic Standard
4 kV contact
IEC 61000‐4‐2
8 kV air
80 to 1000 MHz @ 10V/m with 1 kHz AM at 80%
IEC 61000‐4‐3
1400 to 2000 MHz @ 3V/m with 1 kHz AM at 80%
2000 to 2700 MHz @ 1V/m with 1 kHz AM at 80%
IEC 61000‐4‐8 60 A/m at 50 Hz
IEC 61000‐4‐4 1 kV
IEC 61000‐4‐5 1 kV (line to ground only, each)
IEC 61000‐4‐6 150 kHz to 80 MHz at 3 Vrms
Instruction Manual
Test Level
D101402X012
Performance
(1)
Criteria
A
A
A
A
B
A