DWYER INSTRUMENTS, INC. | dwyer-inst.com482
Positioners
VALVES
LINEAR AND ROTARY SMART POSITIONERS
Fail Freeze, Linear and Rotary Operation, HART
®
Communication
Proximity Series 185 & 285 Linear and Rotary Smart Positioners combine an easy
to use, high performance unit with a low price. Series 185 models accurately control
the valve stroke of linear motion valves and Series 285 models accurately control
the valve stroke of rotary motion valves. An analog feedback signal is outputted to
stabilize any valve system, and easy to use functions such as auto calibration ensure
the accuracy of the unit. The compact design of this unit makes it easy to use with any
size actuator. Smart Positioners feature a LCD screen attached to the outer surface
of the unit, allowing for an easy inspection of the positioner condition while in the eld.
Available in user selectable single or double action, with HART
®
communication as
standard. In the event that the 4 to 20 mA input signal is lost the 185 and 285 will fail
in place.
Proximity Series 195 & 295 Compact Linear and Rotary Smart Positioners are
compact, high performance units with a low price. Series 195 models accurately
control the valve stroke of linear motion valves and Series 295 models accurately
control the valve stroke of rotary motion valves. An analog feedback signal is outputted
to stabilize any valve system, and easy to use functions such as auto calibration
ensure the accuracy of the unit. The handheld size of this unit makes it easy to use
with any size actuator, and can be used in applications where a larger positioner may
not t. Series 195 and 295 Smart Positioners feature a LCD screen attached to the
outer surface of the unit, allowing for an easy inspection of the positioner condition
while in the eld. Available with HART
®
communication.
FEATURES/BENEFITS
• LCD Display
• Auto calibration, PID control
and alarm
FEATURES/BENEFITS
• User selectable single
or double action
• LCD display
APPLICATIONS
• Linear motion valves or rotary motion valves with single acting actuators
APPLICATIONS
• Linear motion valves or rotary motion valves with single or double acting actuators
SPECIFICATIONS
Input Signal: 4 to 20 mA DC.
Input Impedance: 460 Ω max @ 20 mA
DC.
Enclosure Material: Aluminum or 316
SS.
Air Supply: 35 to 116 psi (2.4 to 8 bar).
Air Connection: 1/4˝ NPT.
Gage Connection: 1/8˝ NPT.
Conduit Connection: 1/2˝ NPT.
Linearity: ±0.5% FS.
Hysteresis: ±0.5% FS.
Sensitivity: ±0.2% FS.
Repeatability: ±0.3% FS.
Air Consumption: .0004 scfm (.01 LPM)
at 20 psig (1.4 bar) supply.
Flow Capacity: 2.1 scfm (60 LPM) at 20
psig (1.4 bar) supply.
Stroke: 0.5 to 6˝ (10 to 150 mm) or 0
to 90°.
Enclosure Rating: NEMA 4X (IP66).
Temperature Limits: -22 to 185°F
(-30 to 85°C).
Weight: 3.3 lb (1.5 kg); SS models: 6.4
lb (2.9 kg).
Filters and Regulators: See pages 483-484
Filters and Regulators: See pages 483-484
3-27/32
[97.50]
3-1/64
[76.50]
2-11/32
[59.60]
CONDUIT ENTRY
1/2 NPT
4-7/64
[104.20]
2-33/64
[64.00]
SUPPLY
1/4 NPT
4-13/32
[111.90]
ST
AINLESS STEEL
4-31/64
[113.8]
STANDARD
8-31/64 [215.70]
3-47/64
[95.00]
3-49/64
[95.80]
8-15/32 [215.00]
4-31/64
[113.80]
STANDARD
4.406
[111.9]
STAINLESS STEEL
1-1/8
[28.50]
1-49/64
[45.00]
3-27/32
[97.50]
4-7/64
[104.20]
2-33/64
[64.00]
1-7/64
[28.00]
1-23/64
[34.60]
2-CONDUIT ENTRY 1/2 NPT
HART
®
is a registered trademark of Hart Communication Foundation
HART
®
is a registered trademark of Hart Communication Foundation
SERIES 185 & 285 | PROXIMITY
®
BY DWYER
®
V
I
D
E
O
O
N
L
I
N
E
5-45/64˝ [144.80]
3-3/32˝
[78.50]
4˝
[101.70]
5/16˝
[8.00]
1-57/64˝
[48.00]
15/16˝
[24.00]
1-11/32˝
[34.00]
2-1/4˝
[57.00]
1-27/64˝
[36.00]
1-3/16˝
[30.00]
CONDUIT
ENTRY
1/2 NPT
5/32˝
[4.00]
2-1/2˝
[63.60]
5-7/16˝ [138.30]
2-37/64˝
[65.40]
CONDUIT
ENTRY
1/2 NPT
5/32˝
[4.00]
1-3/16˝
[30.00]
1-27/64˝
[36.00]
1-11/32˝
[34.00]
2-1/4˝
[57.00]
1-57/64
˝
[48.00]
15/16˝
[24.00]
5-45/64˝ [144.80]
5-1/64˝
[127.32]
3-3/32˝
[78.50]
185
285
COMPACT LINEAR AND ROTARY SMART POSITIONERS
Low Cost, Rotary Operation, HART
®
Communication
SERIES 195 & 295 | PROXIMITY
®
BY DWYER
SPECIFICATIONS
Input Signal: 4 to 20 mA DC.
Input Impedance: 460 Ω max @ 20 mA
DC.
Enclosure Material: Aluminum.
Air Supply: 35 to 116 psi (2.4 to 8 bar).
Air Connection: 1/4˝ NPT.
Gage Connection: 1/8˝ NPT.
Conduit Connection: 1/2˝ NPT.
Linearity: ±0.5% FS.
Hysteresis: ±0.5% FS.
Sensitivity: ±0.2% FS.
Repeatability: ±0.3% FS.
Air Consumption: .0004 scfm (.01 LPM)
at 20 psig (1.4 bar) supply.
Flow Capacity: .32 scfm (9 LPM) at 20
psig (1.4 bar) supply.
Stroke: 0.19 to 1.38˝ (5 to 35 mm) or 0
to 90°.
Enclosure Rating: NEMA 4X (IP66).
Temperature Limits: -22 to 185°F (-30
to 85°C).
Weight: 1.8 lb (.82 kg).
185
285
195
195
295
295
MODEL CHART
Model Communication Enclosure
185EL-D1
185EL-D1SS
285ER-D5
285ER-D5SS
HART
®
HART
®
HART
®
HART
®
Aluminum
SS
Aluminum
SS
MODEL CHART
Model Action Communication
195EL-S1
195EL-S2
295ER-S1
295ER-S2
Single
Single
Single
Single
None
HART
®
None
HART
®