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Repeatability: ±1%
Flow Measuring Range: 0.4 - 560 lpm (0.1 - 150 gpm)
Maximum Operating Pressure:
Aluminum and brass monitors: 3500 psig (240 Bar)
Stainless steel monitors: 6000 psig (410 Bar) up to 116°C (240°F)
Maximum Operating Temperature:
Standard Models: 116°C (240°F)
High Temp (-HT) Models: 204°C (400°F) max
Ultra High Temp (-UHT) Models: 316°C (600°F) max
Pressure Differential: download spec sheet for pressure drop graphs
Standard Calibration Fluids:
Oil monitors: DTE 25 @ 43°C (110°F), 0.873 sg
Water monitors: tap water @ 21°C (70°F), 1.0 sg
Maximum Particle Size: 76 microns
Relay (Optional): 1 or 2 form “C” relays, rated 10 A @ 125 or 250 Vac or 0.25 A @ 250 Vdc
Mechanical Life: >107 cycles
Analog Output (Optional): Supply voltage 12 to 35 Vdc, field selectable for 0 to 5 Vdc (100 W minimum load), 0 to 2000 Hz square-wave pulse or 4 to 20 mA; Rmax = 50 (Vs-12). Vs = supply voltage DC
Installation Dimensions:
1/4 and 1/2 NPT Sizes: 1-7/8 OD x 6.6" length
3/4 and 1 NPT Sizes: 2-3/8 OD x 7.2" length
1-1/4 and 1-1/2 NPT Sizes: 3-1/2 OD x 10.1" length
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Reviews
- B
Bruce Ramm
Jan 15, 2026
Omega Flowmeter FLMH-1040The customer service I received from your team was fast, friendly, and knowledgeable.HelpfulUnhelpful - M
Mark Gryder
Dec 31, 2025
Omega Flowmeter FLMH-1040I was hoping you'd have it. Thanks.HelpfulUnhelpful - S
Sherri Lutes
Jul 25, 2025
Omega Flowmeter FLMH-1040They had all the type snd size vents I need.HelpfulUnhelpful - L
Lev Novak
Mar 08, 2025
Omega Flowmeter FLMH-1040Excellent analyzer that’s quick and reliable. Ideal for commercial refrigeration use!HelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
Omega Flowmeter FLMH-1040All was ok! No problems whatsoever.HelpfulUnhelpful
Omega Flowmeter FLMH-1040
✔ In Stock (Can ship in 5-7 days)

Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee
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