42AD0 | 2 switches | SPDT snap | 15A @ 125/250/480 VAC | 1/8 hp @ 125 VAC | direct drive with stainless steel visual indicator | aluminum | painted black. | Dwyer Dwyer

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2 switches | SPDT snap | 15A @ 125/250/480 VAC | 1/8 hp @ 125 VAC | direct drive with stainless steel visual indicator | aluminum | painted black.

Series Mark Position Indicators/Switches/Transmitters

• MARK 1
  • Features a magnetic coupling that isolates the switch compartment, completely sealing the unit from the surrounding atmosphere for maximum hazard and leak protection.
  • EZset cams on switch models provide simple set point adjustment.
  • Flexible design allows multiple switches and transmitter options.
  • Ideal for corrosive environments.
• MARK 3
  • Features a magnetic coupling that isolates the switch compartment, completely sealing the unit from the surrounding atmosphere for maximum hazard and leak protection.
  • Multi-Turn models that can provide switch signals between 1 and 25 revolutions, and transmitter models for up to 10 revolutions without gear reduction.
  • Flexible design allows multiple switches and transmitter options.
  • Ideal for corrosive environments.
• MARK 4
  • Thru-Shaft design that features a 1″ bearing for long life and o-rings to seal the switch compartment for hazard, corrosion, and leak protection.
  • EZset cams on switch models provide simple set point adjustment.
  • Flexible design allows multiple switches and transmitter options.
  • A lower cost alternative to the Mark 1 Series for less demanding applications.

• Features a magnetic coupling that isolates the switch compartment, completely sealing the unit from the surrounding atmosphere for maximum hazard and leak protection.
• EZset cams on switch models provide simple set point adjustment.
• Flexible design allows multiple switches and transmitter options.
• Ideal for corrosive environments.

• Features a magnetic coupling that isolates the switch compartment, completely sealing the unit from the surrounding atmosphere for maximum hazard and leak protection.
• Multi-Turn models that can provide switch signals between 1 and 25 revolutions, and transmitter models for up to 10 revolutions without gear reduction.
• Flexible design allows multiple switches and transmitter options.
• Ideal for corrosive environments.

• Thru-Shaft design that features a 1″ bearing for long life and o-rings to seal the switch compartment for hazard, corrosion, and leak protection.
• EZset cams on switch models provide simple set point adjustment.
• Flexible design allows multiple switches and transmitter options.
• A lower cost alternative to the Mark 1 Series for less demanding applications.

Product Rating

Weatherproof and flameproof. NEMA 1; 2; 3; 3R; 3S; 4; 4X; 6; 7; 9; 12; 13. UL rated: Class I; Div. 1 & 2; Groups B; C; D (some units available for Group A; consult factory); Class II; Div. 1 & 2; Groups E; F; and G. CSA rated: Class I; Div. 1 & 2; Groups A; B; C; D; Class II; Div. 1 & 2; Groups E; F; and G; Submersible to 50 feet. Certified Ex d IIC T6 IP68 15 meters). ATEX Compliant: -B suffix; directive 2014/34/EU; KEMA 03 ATEX 2391; II 2 G Ex d IIC T6 for (-25/-40/-50°C = Tamb = 80°C optional wording) depending on output and switch type selected. -IS suffix directive 2014/34/EU; KEMA 03 ATEX 1392X; II 1 G Ex ia IIC T4. (Switch type C is not available with ATEX; Switch type B is not available with ATEX intrinsically safe; -IS suffix).IECEx Compliant: IE suffix; IECEx DEK II.0056X Ex d IIC T6 Gb for -25°C/-40°C/-50°C = Tamb = 70°C and T5 for -25°C/-40°C/-50°C = Tamb = 80°C. II suffix; IECEx DEK II.0061X II Ex ia IIC T4 Ga. Compliant per EN 60079-0:2007 EN 60079-11:2006 and EN 60079-26:2006.

Switch Outputs (Mark 1; 3 and 4)

Temperature Limits

-58 to 176°F (-50 to 80°C). Switch Type C rated to 350°F (176°C) for 600 hours; Switch Type T rated to 250°F (121°C) continuous. [ATEX flameproof; -B suffix; rated -50 to 80°C (-58 to 176°F) for switch type A; G; H; T; or M; -40 to 80°C (-40 to 176°F) for switch type O; R; S; V; or W; -25 to 80°C (-13 to 176°F) for switch type B; D; I; or AS interface; ATEX intrinsically safe; -IS suffix; rated -25 to 40°C (-13 to 104°F) for switch type D or I; -40 to 40°C (-40 to 104°F) for switch type R; V; or W or -50 to 40°C (-58 to 104°F) for switch type A; G or H.]

Switch Type

See Model Chart page.

Electrical Rating

See Model Chart page.

Set Point Adjustment

Mark 1 and 4: 5 to 360°.

Potentiometer (Mark 1; 3 and 4)

Accuracy

±0.5% of full span. Optional ±0.25% of full span.

Temperature Limits

-40 to 176°F (-40 to 80°C). [ATEX flameproof; -B suffix; rated -40 to 80°C (-40 to 176°F) for switch type A; G; M; O; R; S; T; V; or W; -25 to 80°C (-13 to 176°F) for switch type B; D; or I; ATEX intrinsically safe; -IS suffix; rated -25 to 40°C (-13 to 104°F) for switch type I; -40 to 40°C (-40 to 104°F) for switch type O; R; S; V; or W].

Power Rating

1.5 watt maximum.

Output Signal

1000Ω standard. Optional 2000; 5000; 10000; or 20000 Ω.

Zero and Span Adjustments

Span trim pot with 2000Ω adjustment. No zero adjustment.

Rotational Travel

Mark 1 and 4: Minimum 0°; Maximum 340°; Mark 3: 0 to 10 revolutions.

Transmitter (Mark 1; 3 and 4)

Accuracy

±0.5% of full span. Optional ±0.25% of full span.

Temperature Limits

-40 to 176°F (-40 to 80°C). [ATEX flameproof; -B suffix; rated -40 to 80°C (-40 to 176°F) for switch type A; G; M; O; R; S; T; V; or W; -25 to 80°C (-13 to 176°F) for switch type B; D; or I; ATEX intrinsically safe; -IS suffix; rated -25 to 40°C (-13 to 104°F) for switch type I; -40 to 40°C (-40 to 104°F) for switch type O; R; S; V; or W].

Power Requirements

5 to 30 VDC.

Current Consumption

50 mA.

Output Signal

4 to 20 mA.

Zero and Span Adjustments

Trim pots for adjusting both. Mark 1 and 4: Span is adjustable from 50 to 300°; Mark 3: Span is adjustable from 1.5 to 8.5 revolutions.

Conduit Connection

3/4″ female NPT standard. Optional one or two 1/2″ female NPT. M25 X 1.5 and M20 X 1.5 optional.

Rotational Travel

Mark 1 and 4: Minimum 50°; Maximum 300°; Mark 3: Minimum: 1.5 revolutions; Maximum: 8.5 revolutions.

Transmitter w/HART® (Mark 1; 3 and 4)

Accuracy

±0.25% of full span.

Temperature Limits

-40 to 176°F (-40 to 80°C). [ATEX flameproof; -B suffix; rated -40 to 80°C (-40 to 176°F) for switch type A; G; M; O; R; S; T; V; or W; -25 to 80°C (-13 to 176°F) for switch type B; D; or I].

Power Requirements

8 to 30 VDC.

Current Consumption

21 mA.

Output Signal

4 to 20 mA.

HART® Receive Impedance

Rx = 500 kohm; Cx = 2500 pF.

Zero and Span Adjustments

Pushbuttons or HART® master for setting both. Mark 1 and 4: Span is adjustable from 0 to 330°; Mark 3: Span is adjustable from 1.5 to 8.5 revolutions.

Conduit Connection

3/4″ female NPT standard. Optional one or two 1/2″ female NPT. M25 and M20 optional.

Rotational Travel

Mark 1 and 4: Maximum 330°; Mark 3: Minimum: 1.5 revolutions; Maximum: 8.5 revolutions.

Resources

^^2 switches, SPDT snap, 15A @ 125/250/480 VAC, 1/8 hp @ 125 VAC, direct drive with stainless steel visual indicator, aluminum, painted black.^^