Mark series valve position indicator / switch / transmitter
product manual:
Mark series is a series of valve position indicator products, which can choose multiple output methods. There are four different models that make the Mark series suitable for almost any application. The standard model of the Mark series has a valve position indicator, the protection level is all-weather, explosion-proof and submersible protection. Multiple output methods make it widely used in various fields. Among the 16 parameter choices, there are six types of switches to choose from: inductive induction switches, high temperature switches, gold contact switches, fully sealed switches and high current switches. In addition to the switch output, there are potentiometer outputs, transmitter outputs and HART® communication. It can be used for angle valves and straight-stroke valves, which can display the valve switching status and valve position. Mark 1 uses patented magnetic drive technology, which completely isolates the switch from the outside world and avoids leakage. The Mark 3 and Mark 1 are also magnetically driven, but the Mark 3 can be used in multi-turn applications such as gate valves. The Mark 4 is driven by a straight shaft and is inexpensive.
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 60 079-11: 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.

Order process
Landline: 021-59718851 (AM-8: 30 to PM-17: 30)
Mobile phone: 18918462396 (WeChat same number 24-hour service)

QQ: 2030185432

Email: kunage@126.com
Receive customer purchase list, provide customers with valve model selection and quotation (price list).
Specific agreement: delivery time, special requirements, etc.
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Customers have special requirements for products, and must provide the following instructions in the order contract:
(1) Structure length;
(2) Connection form;
(3) Nominal diameter, full diameter, reduced diameter, pipe size;
(4) Operating medium, temperature and pressure range;
(5) Experiment, inspection standards and other requirements;
(6) Various driving devices can be configured in this field according to the special requirements of customers;
If the determined valve type and model are provided by the customer, the customer should correctly explain the meaning and requirements of its model, and sign the contract under the conditions that the supply and demand sides understand and agree.