3660 and 3661 Positioners
Instruction Manual
Form 5265
March 2006
4
Table 1. Specifications (Continued)
Hazardous Area Classification for Type 3660
3660 pneumatic positioners comply with the
requirements of ATEX Group II Category 2 Gas
and Dust
Hazardous Area Classification for Type 3661
Intrinsic Safety, and Non-incendive
APPROVED
Intrinsic Safety, and Non-incendive
ATEX
Intrinsic Safety and Type n
(Gas Atmospheres Only)
SAA
Intrinsic Safety and Type n
Refer to Special Instructions for Safe Use and
Installation in Hazardous Locations, tables 3, 4
and 5 and figures 27, 28, 29, 30, and 31 for
additional information.
Housing Classification for Type 3661
IP 54 per IEC 60529, NEMA 3 (FM) and
Enclosure 3 (CSA): Mounting orientation requires
vent location to be below horizontal.
Mounting
The positioner can be mounted in one of four
different configurations. See figure 2 for mounting.
Pressure Connections
1/4-inch NPT female
Conduit Connection for Type 3661
1/2-inch 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
Type 3660:
1.2 kg (2.6 pounds)
Type 3661:
1.4 kg (3.0 pounds)
Vent Connection
1/4-inch NPT female
Options
Type 3660:
J
Instrument and output pressure gauges,
J
Integrally mounted bypass valve
Type 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 EC
Directives.
1. This term is defined in ISA Standard S51.1.
2. Normal m
3
/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).
3. Air consumption at a gain setting of 1/2 turn.
4. Hysteresis value at a gain setting of 1/2 turn.
5. Adjusting the gain (PB) adjustment changes the nozzle flapper relationship. This nozzle flapper change affects the actuator/positioner response time.
6. At supply pressure of 2.4 bar (35 psig).
7. The pressure/temperature limits in this manual and any applicable standard or code limitation should not be exceeded.
Table 2. Immunity Performance
Port
Phenomenon
Basic Standard
Performance Criteria
(1)
Enclosure
Electrostatic discharge (ESD)
IEC 61000-4-2
A
Radiated EM field
IEC 61000-4-3
A
Rated power frequency magnetic field
IEC 61000-4-8
A
I/O signal/control
Burst
IEC 61000-4-4
A
Surge
IEC 61000-4-5
B
Conducted RF
IEC 61000-4-6
A
1. A = No degradation during testing. B = Temporary degradation during testing, but is self-recovering.
