Emerson 350 series Instruction Manual page 4

Instruction Manual
Form 1387
June 2002
Bench Stroking Speed
J
8.6 mm/second (0.37 inches/second) for 8900
N (2000 pounds) output thrust or 318 NSm
(2812 lbfSin) output torque and
J
3.8 mm/second (0.15 inches/second) for 22200
N (5000 pounds) output thrust or 794 NSm
(7031 lbfSin) output torque
Maximum Actuator Travel
Type 350: See table 4
Type 354: 90 degrees
Pump Type
Positive-displacement, gear-type pump with relief
valves.
Hydraulic Fluid Requirements
10.4 liters (11 quarts) of Type A automotive
automatic transmission fluid. If the actuator is
used in ambient temperatures below –4°C (25°F),
use an aircraft-type hydraulic fluid that conforms
to MIL-H-5606A specifications.
Operative Temperature
Weather-Proof Motor: –40 to 40°C (–40 to
104°F)
Explosion-Proof Motor: –25 to 40°C
(–13 to 104°F)
Performance
(1)
Hysteresis : 0.50 percent of span
Load Sensitivity: Stem position change 0.3 to
1.0 percent of total travel per 488 Newton (100
pound) change in load
Terminal-Based Linearity
travel
(1)
Dead Band : Less than 0.5 percent of total
travel
Frequency Response
frequency response curves
1. This term is defined in ISA S51.1.
2. Stroking speed with actuator operating a valve under no load.
3. Do not exceed the thrust and torque limits in this manual.
4. The temperature limits in this manual and in any applicable standard or code limitation should not be exceeded.
Table 1. Specifications (continued)
(2)
(1, 4)
: ±2 percent of total
(1)
(1)
: See figure 3 for typical
Adjustments
Zero and span adjustments located under cover
(figure 2)
Hazardous Area Classification
Actuators with intrinsically safe actuator control
circuits are available. Intrinsically safe control
circuits are indicated by the presence of a special
actuator nameplate and require an
explosion-proof motor. Refer to the special
actuator nameplate for information concerning
use of the actuator in hazardous locations. The
motor nameplate must also specify an
explosion-proof approval.
Motor Type
See table 3. Motor type designations refer to the
motor only; not to the entire actuator.
Connections
Power: 1/2-inch NPT female conduit connection
on motor
Input Signal: 1/2-inch NPT female conduit
connection on side of casing
Seal Drain Off: 1/4-inch NPT female connection
with vent assembly on top of yoke. This
connection is furnished only on 72 mm (2-13/16
inch) and
90 mm (3-9/16 inch) yoke boss sizes of the Type
350 actuators
Approximate Weight
Type 350 without Handwheels
72 mm (2-13/16 inch) Yoke Boss: 49 kg
(110 pounds)
90 mm (3-9/16 inch) Yoke Boss: 64 kg
(142 pounds)
127 mm (5-inch) Yoke Boss: 91 kg (200 pounds)
Type 354
Size 60: 86 kg (194 pounds)
Size 80: 123 kg (275 pounds)
350 Actuator
3