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MIDWEST INSTRUMENT 522P-015-LA Differential Pressure Indicator with Switch - Differential Pressure Indicators with Switch
MIDWEST INSTRUMENTDifferential Pressure Indicators with Switch

MIDWEST INSTRUMENT 522P-015-LA Differential Pressure Indicator with Switch

The MIDWEST INSTRUMENT 3-Color Differential Pressure Indicator (MPN 522P-015-LA) is a differential pressure indicator with switch, featuring a Buna-N sensor and Acetal Plastic housing. It offers ±5% of Full Scale…

SKU 3G-OTH-174316

Also listed as: 522P015LA · 522P 015 LA

Brand
MIDWEST INSTRUMENT
Item
522P-015-LA Differential Pressure Indicator with Switch
Part Number
522P-015-LA
Category
Differential Pressure Indicators with Switch
Available to Order
Also known as:522P-015-LAMIDWEST INSTRUMENT
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Technical specs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
Warning appliesProp 65 warning
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

MIDWEST INSTRUMENT
Manufacturer Part Number
522P-015-LA
Series
522
Type
Static Pressure, 522
Accuracy
±5% of Full Scale
IP Rating
IP65
Standards
ASME B1.20.1; ASME B40.100; CSA-C22.2 No. 14; EN-61010-1; NEMA Std. 250; UL Std. No. 50 and 508
Case Shape
Square
Sensor Type
Diaphragm
Catalog Page
N/A
Case Material
Glass Reinforced Thermoplastic
Lens Material
Acrylic
Seal Material
Buna-N
Accuracy Grade
ASME B40.1 Grade D
IP/NEMA Rating
IP65 ; 4X
Includes Switch
Yes
Panel-Mountable
Yes
Sensor Material
Buna-N
Dial Scale Color
Green-Yellow-Red
Housing Material
Acetal Plastic
Country of Origin
USA (subject to change)
Nominal Dial Size
2-1/2 in
Transition Points
0 psid to 7.5 psid (Green) / 7.5 psid to 11 psid (Yellow) / 11 psid to 15 psid (Red)
Adjustable Set Points
No
NEMA Enclosure Rating
4X
Switch Connector Type
DIN 43650/IP65-PG9 NEMA 4X Plug-In
Switch Output Current
0.25 A
Switch Voltage Output
125 V AC/DC
Switch Wattage Output
3 W
Process Connection Size
1/4 in
Process Connection Type
NPT
Process Connection Gender
Female
Includes Mounting Hardware
No
Manufacturer Warranty Length
5 yr
Pressure Measurement - Maximum
15 psid
Pressure Measurement - Minimum
0 psid
Transition Point Range – Red
11 psid to 15 psid
Maximum Working Static Pressure
1,000 psig Maximum Working Static Pressure Maximum working static pressure refers to the absolute maximum pressure of a system versus the differential pressure between two sides of a system.
Transition Point Range – Green
0 psid to 7.5 psid
Transition Point Range – Yellow
7.5 psid to 11 psid
Process Media Temperature - Maximum
200 °F
Process Media Temperature - Minimum
-40 °F
Clean Filter Pressure Measurement - Maximum
7.5 psid
Clean Filter Pressure Measurement - Minimum
0 psid
Dirty Filter Pressure Measurement - Maximum
15 psid
Dirty Filter Pressure Measurement - Minimum
11 psid
Change Filter Pressure Measurement - Maximum
11 psid
Change Filter Pressure Measurement - Minimum
7.5 psid

Technical Documents

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MIDWEST INSTRUMENT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MIDWEST INSTRUMENT 3-Color Differential Pressure Indicator (MPN 522P-015-LA) is a differential pressure indicator with switch, featuring a Buna-N sensor and Acetal Plastic housing. It offers ±5% of Full Scale accuracy and color-coded transition points: green from 0 psid to 7.5 psid, yellow from 7.5 psid to 11 psid, and red from 11 psid to 15 psid, with a maximum static pressure of 1,000 psig.

Frequently Asked Questions

What is the MIDWEST INSTRUMENT 3-Color Differential Pressure Indicator used for?

This indicator provides a visual status of differential pressure in fluid systems, using green, yellow, and red zones to show filter condition or flow status. It is commonly applied in HVAC, water treatment, and process industries where monitoring pressure drops across filters or strainers is critical.

What are the specifications of the MIDWEST INSTRUMENT 522P-015-LA?

The MIDWEST INSTRUMENT 522P-015-LA has a maximum static pressure of 1,000 psig, accuracy of ±5% of full scale, a Buna-N sensor, and an Acetal Plastic housing. Transition points are color-coded: green from 0 psid to 7.5 psid, yellow from 7.5 psid to 11 psid, and red from 11 psid to 15 psid.

Where to buy the MIDWEST INSTRUMENT 522P-015-LA worldwide?

3G Electric supplies the MIDWEST INSTRUMENT 522P-015-LA to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time; we source genuine industrial equipment across 14 departments including instrumentation and controls.

How to install the MIDWEST INSTRUMENT 3-Color Differential Pressure Indicator?

Install the indicator in a clean, dry location within the specified pressure range. Use appropriate fittings for the Buna-N sensor and Acetal housing. Ensure the process connections are tight and free of debris. Refer to the manufacturer's manual for detailed mounting orientation and electrical wiring of the switch.

Used in

Common applications for MIDWEST INSTRUMENT
Filter monitoring in industrial water treatment — MIDWEST INSTRUMENT 522 series 3-color differential pressure indicators
Flow measurement in chemical processing — MIDWEST INSTRUMENT Series 120 piston-type differential pressure gauges
Liquid level indication in oil and gas storage tanks — MIDWEST INSTRUMENT Model 142 diaphragm-type differential pressure gauges
HVAC system filter condition monitoring — MIDWEST INSTRUMENT Series 130 differential pressure gauges with glass-reinforced plastic housing
Pump differential pressure monitoring in industrial plants — MIDWEST INSTRUMENT 522 series indicators with switch for alarm output
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MIDWEST INSTRUMENT Products

3G Electric supplies MIDWEST INSTRUMENT differential pressure indicators with switch. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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