3000MR / 3000MRS Series Photohelic® Micro Differential Pressure Switch / Meter
product description:
The 3000MR 3000MRS Photohelic® switch / meter combines a high-precision, high repeatability differential pressure switch with a large dial for easy-to-read pointer differential pressure gauges, using the reliable and durable Magnehelic® design concept. The pressure switch set point can be set through the knob of the instrument panel. The pressure gauge reading is not affected by the switch, and it can accurately read even if the power is lost. The use of solid-state technology greatly reduces the size and weight of the product. Can be embedded in the 13/16 ″ (122mm) mounting hole or surface-mounted with accessories. The 3000MR model uses gold-plated contact switches, which is particularly suitable for low-power passive circuits. For applications with frequent switching actions You can choose 3000MRS with single pole single throw (normally open) solid state switch. There are high and low position switches with 18 inches (45cm) long cable for electrical connection.
The accuracy of the 3000MR 3000MRS Photohelic® differential pressure gauge is ± 2%, the repeatability of the switch is ± 1%, and the return difference is less than 1%, which is narrower than the width of the pointer. It can be used in air or other non-flammable, non-corrosive gases, with a pressure resistance to 25 psig (1.725 bar). Special construction options with 35 psig (2.42bar) or 80 psig (5.51bar).
Included accessories: mounting ring, snap ring, 18 "(45 cm) cable, two 3/16" hose to 1/8 "NPT adapters, 2 1/8" NPT plugs, 4 6-32 x 1-1 / 4 "panel mounting screws, 3 6-32 x 5/16" surface mounting screws.
3000MR 3000MRS Photohelic® 差压表的精度是±2%， 开关的重复精度是±1%，回差小于1%，比指针的宽度还窄。它可用于空气或其它不可燃，无腐蚀的气体，耐压到25psig(1.725bar)。有耐压35 psig(2.42bar)或耐压80 psig (5.51bar)的特别结构选项。
包括附件：安装环，卡环，18" (45 cm)电缆，两个3/16"软管到1/8"NPT转换接头，2个1/8"NPT堵头，4个6-32 x 1-1/4"盘装用螺钉，3个6-32 x 5/16"表面安装用螺钉。
GAGE SPECIFICATIONS
Service: Air and non-combustible, compatible gases.
Wetted Materials: Consult factory.
Accuracy: ±2% of FS (3000-0 ±3% of FS). (3000-00 ±4% of FS).
Pressure Limit: -20" Hg. to 25 psig (-0.677 bar to 1.72 bar). MP option: 35 psig (2.41 bar), HP option: 80 psig (5.52 bar).
Temperature Limits: 20 to 120°F (-6.67 to 48.9°C).
Process Connections: 1/8" female NPT (duplicated side and back).
Size: 4" (101.6 mm) dial face, 5" (127 mm) OD x 3-1/8" (79.38 mm).
Weight: 1.8 Ib (816 g).
SWITCH SPECIFICATIONS 3000MR
Switch Type: Each setpoint has 1 form C relays (SPDT).
Relay Contacts: (Resistive load) 1 form C rated 1.0A @ 30 VDC, 0.3A @ 110 VDC or 0.5A @ 125 VAC. Gold over clad silver - suitable for dry circuits.
Electrical Connections: 18" (46 cm) cable assembly with 8 conductors. Optional lengths to 100' (30.5 m).
Power Requirements: 24 VDC, regulated ±10%.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment: Adjustable knobs on face.
Agency Approvals: CE.
SWITCH SPECIFICATIONS 3000MRS
Switch Type: Each setpoint has a solid state relay.
Switching Voltage: 20-280 VAC (47-63 Hz).
Switching Current: 1.0 amp (AC) max., 0.01 mA (AC) min., (2) SPST NO.
Electrical Connections: 18" (46 cm) cable assembly with 6 conductors, optional lengths to 100' (30.5 m).
Power Requirements: 24 VDC, regulated ±10%.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment: Adjustable knobs on face.
Agency Approvals: CE.

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.