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Series 3000MR/3000MRS Photohelic® Switch/Gage

Series MP Mini-Photohelic® Differential Pressure Switch/Gage

Compact, Low Cost Switch/Gage

The Series MP Mini-Photohelic® Differential Pressure Switch/Gage combines the time proven Minihelic® II differential pressure gage with two SPDT switching set points. The Mini-Photohelic® switch/gage is designed to measure and control positive, negative, or differential pressures consisting of non-combustible and non-corrosive gases. Gage reading is independent of switch operation. Switching status is visible by LED indicators located on the front and rear of the gage. Set points are adjusted with push buttons on the back of the unit.

NIST CALIBRATION available in Product Configurator.

Product Applications

Fume hoods
Dust collection
Pneumatic conveying
Clean room

Starting at $501.30

Ordering

Filter By

Inches of Water

Kilopascals

MM of Water

Pascals

Grouped product items
Model	Description	Availability*	Price
MP-001	Differential pressure switch/gage, range 0-1.0" water.	1-3 days*	$501.30
MP-005	Differential pressure switch/gage, range 0-5.0" water.	1-3 days*	$501.30
MP-250PA	Differential pressure switch/gage, range 0-250 Pa.	5-6 Weeks*	$501.30

Specifications

: GAGE SPECIFICATIONS
Service:: Air and non-combustible, compatible gases.
Wetted Materials:: Consult factory.
Accuracy:: ±5% FS @ 70°F (21.1°C). Gage face mounted in vertical position.
Pressure Limits:: 30 psig (2.067 bar).
Temperature Limits:: 20 to 120°F (-6.7 to 49°C).
Process Connections:: Barbed for 3/16" ID tubing (STD); 1/8" male NPT (optional).
Size:: 4-1/8" (104.78 mm) depth x 3-1/16" (77.79 mm) diameter.
Weight:: 23 oz (652 g).
: SWITCH SPECIFICATIONS
Switch Type:: (2) SPDT relays.
Electrical Rating:: 5 A @ 120/240 VAC resistive; 5 A @ 30 VDC.
Electrical Connections:: Screw type terminal block. Accepts 22-12 AWG wire.
Power Requirements:: 24 VDC / 24 VAC 50/60 Hz 4 W.
Mounting Orientation:: Gage face in vertical position.
Set Point Adjustment:: Push buttons.
Standard Accessories:: (2) mounting screws, (1) .050" hex allen wrench.
Compliance:: CE, cULus.

Features

Gage reading unaffected by switch operation and will continue to read pressure even during power loss
Visible switch status LED provides indication of set point switching state
Compact design but with the power of larger devices can meet the same application specifications

Options

For optional 1/8" male NPT connections, add suffix -NPT to model numbers.
Example: MP-000-NPT. No extra charge. Allow additional lead time.

Support Library

Product Literature

Manuals

Instruction Manual

Catalog Pages

Series MP Catalog Page

Approvals

Drawings

Model Chart

EXAMPLE	MP	000	AT	Series MP-000-AT Mini-Photohelic® Differential Pressure Switch/Gage, range 0-0.5" w.c., with aluminum tag.
SERIES	MP			Mini-Photohelic® Differential Pressure Switch/Gage
RANGE		000 001 002 003 005 010 020 040 060 100 5PSI 10PSI 15PSI 25MM 50MM 100MM 125PA 250PA 500PA 1KPA 3KPA 10KPA		0-0.5" w.c. 0-1" w.c. 0-2" w.c. 0-3" w.c. 0-5" w.c. 0-10" w.c. 0-20" w.c. 0-40" w.c. 0-60" w.c. 0-100" w.c. 0-5 psi 0-10 psi 0-15 psi 0-25 mm w.c. 0-50 mm w.c. 0-100 mm w.c. 0-125 Pa 0-250 Pa 0-500 Pa 0-1 kPa 0-3 kPa 0-10 kPa
OPTIONS			AT DEED EDED EDDE HL LH LL NIST NPT	Aluminum Tag Energizing (set point low: de-energizing/energizing; set point high: energizing/de-energizing) Energizing (set point low: energizing/de-energizing; set point high: energizing/de-energizing) Energizing (set point low: energizing/de-energizing; set point high: de-energizing/energizing) Latching Option (high/low) Latching Option (low/high) Latching Option (low/low) NIST Certificate of Calibration NPT Connections

FAQ

Questions

Question

Your catalog says the A3000 series photohelic needs 120VAC, but "Special units for other voltages are available." Does that mean I can order a 24VDC model? If so, what would the part no. be? Thanks

Answer

We do offer two voltage options which are -24VAC: 24 VAC Relay Pack or -240 VAC: 220/240 VAC Relay Pack. Unfortunately we do not offer a VDC option with the A3000 Series. However, you could consider the Series MP, Mini-Photohelic Differential Pressure Switch/Gage or the Series 3000 MR or 3000 MRS which all offer the 24 VDC Power Requirement.

Related

Series MP

Series 3000MR/3000MRS

Question

What restrictions, if any, are imposed for the Magnehelic® and Photohelic® gages in vacuum service?

Answer

In applications involving higher vacuums than 20" Hg, leakage due to gage housing porosity becomes the limiting factor.

Related

Series MP

Series 2000-SP

Series 2000

Series 3000MR/3000MRS

Series 605

Series DCTE

Series A3000

Series 43000

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Accessories

Model	Description	Availability*	Price
A-301	Static pressure tip, for 1/4" metal tubing connection.	1-3 days*	$13.40
A-302	Static pressure tip, for 3/16" and 1/8" ID plastic or rubber tubing.	1-3 days*	$12.65
A-302F-A	303 SS Static pressure tip with mounting flange, for 3/16" I.D. rubber or plastic tubing. 4" insertion depth, includes mounting screws	1-3 days*	$12.40
A-489	4" 303 SS straight static pressure tip with flange, 1/4" hose barb.	1-3 days*	$9.50