Series Mark Position Indicators/Switches/Transmitters

Specifications

GENERAL

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.

Features

• 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.

Options

• JUNCTION PACKAGE: Complete factory assembled packages combine visual indication, solenoids, switches and transmitter in a single convenient UL, CSA, ATEX, or SAA certified assembly which saves labor and reduces cost. The simple package is shipped ready for installation, complete with a custom designed mounting kit for your specific application. Many options are available such as painted aluminum, epoxy coated aluminum or stainless steel housings including a standard 3/4" NPT conduit entrance and choice of 1 or 2 additional 1/2" NPT conduit entrances. The optional conduit entrances are drilled and tapped in the base of the position indicator housing and solenoid valves are screwed into the entrances. 22 to 16 AWG wire leads from solenoids, switches and optional transmitter are terminated in prelabeled, easy-access terminal strips protected inside the housing. Note: UL, CSA, ATEX or SAA approval requires complete package assembly by Proximity. Consult the factory for recommended UL, CSA, ATEX or SAA approved solenoid valve options.
• FACTORY SEALED LEADS: Eliminate the possibility of conduit contamination and the need for seal fittings with Proximity's factory sealed (potted) leads. This seal has been UL tested to 6000 psi (422 kg/cm²) and listed for Class I, Groups A, B, C, D; Div. 1 & 2 atmospheres. Groups may vary depending on the switch model. Standard leads are 18 AWG and 36" (91.44 cm) long.
• AS-INTERFACE: AS-Interface allowing networking of up to 31 devices over a 2-wire network. Option for Mark 1 Magnetic Drive and Mark 4 Thru-Shaft Valve Position Indicators. Available with 1 or 2 incorporated solenoid valves.
• MOUNTING KITS: Mounting kits with drive yoke or slotted lever arm, bracket, fasteners and other zinc plated or stainless steel hardware fit over 2000 popular valves and actuators. A high strength spring tempered Monel drive yoke/coupling is tailored to fit securely to a specific valve or actuator stem. There is no slippage or binding. No special alignment fixtures are required due to switch offset design and yoke to stem engagement that makes installation a "snap". Each kit is specially designed for a particular valve or actuator; making field mounting simple with standard tools. Please specify make and model of valve or actuator on order.
  Mounting kits can be used interchangeably with all models since external mounting features are identical. Rotary valves utilize direct drive couplings and a slotted lever drive is used with linear valves. Lever drives convert linear motion to rotary. Stainless steel visual indicators are standard for direct drive, automated quarter-turn valve applications.

Approvals

• ATEX QAN
• CE Declaration
• EU-Type Examination Cert (Intrinsically Safe)
• EU-Type Examination Certificate (Flameproof)
• IECEx Certificate (Flameproof)
• IECEx Certificate (Intrinsically Safe)
• RoHS Letter of Compliance
• UL-Auxiliary Devices
• UL-Telemetering Equipment

Drawings

• CAD Drawing in format .DWG
• Adobe Reader in format .PDF

Model Chart