Flow Meters
GloTech is your source for cutting-edge, accurate, and cost-effective flow monitoring technology. Our newest GEM Series electromagnetic flow meter provides reliable and precise measurement of water and wastewater across multiple industries.
Our meters offer superior accuracy, flexible installation options, premium materials and workmanship, as well a broad range of data output and remote monitoring options.
GEM SERIES Flow Meters
The GEM series electromagnetic flow meter utilizes cutting-edge technology to provide reliable and precise measurement of water and wastewater across multiple industries.
The GEM’s advanced design enables maximum flexibility to provide superior accuracy in the most challenging fluid applications and installation conditions. The GEM series features a heavy-duty design, advanced LCD display, and premium materials and workmanship.
Key Features
- No moving parts within flow tube, resulting in low maintenance requirements and minimal head loss
- Minimal straight pipe requirements
- Rugged construction rated to IP68
- Optional built-in data logger
- Android and iOS Bluetooth app
- Variety of data-output and telemetry options
- NSF/ANSI 61 Certified
Product Range
- The GloTech GEM series is available in a wide range of sizes and flange options to meet any application requirement.
- With diameters ranging from 2” to 80”, GloTech can be your single source solution provider for reliable flow measurement.
Applications
- Municipal waterworks
- Industrial / process water
- Water / wastewater treatment
- Groundwater / irrigation
- Pump stations
- Upstream oil & gas production
Downloads
Photo Gallery
Videos
GEM Series Flow Meters Intro
Monitoring the GEM Flow Meter with Telemetry
Support
- Email: gemsupport@glotech-corp.com
- Call or Text: (954) 908-9955
- Register Gem Meter(s)
- GEM Limited Warranty Statement
Popular Flow Meters FAQ
How do I select the right Mag Meter for my application?
Our GT authorized distributors are trained and highly knowledgeable about our meters. Contact a distributor for personalized, expert guidance to find the perfect GEM flow meter for your specific needs. For help finding a distributor go to our Contact Us page.
What output options are available for the GEM?
All GEM flow meters come fully equipped with 4-20mA (analog), pulse/frequency output (digital), and Modbus (serial via RS-485) capabilities. Simply use our power/output cable to access all three. For applications without access to an external power supply, the GEM2 also offers a low-power pulse/frequency output with adjustable width, compatible with any digital telemetry device.
Can I use solar energy to power my GEM?
Absolutely! The GEM can be powered with 8-32 Vdc. Ensure your solar rig stays within this range for optimal performance. We recommend installing a low voltage disconnect (LVD) to maintain smooth performance.
What is the power consumption of a GEM?
The GEM is an ideal choice for remote applications. At 12 Vdc, the rated amp draw is 80 mA, with a maximum of 90 mA. Recommended power supply rated at 300 mA or higher.
How do I wire my GEM for my specific application?
Wiring your GEM is straightforward. Using our power/output cable, you’ll have access to three communication styles (analog, digital, and serial) through a four-wire setup (2 power + 2 signal wires). For low-power digital signals, the GEM2 only needs 2 signal wires. Enjoy easy integration with your existing systems!
What are the limit flow rate values for my GEM when setting 4-20mA?
At 4mA, the flow rate value is 0 gpm for all sizes. At 20mA, the flow rate corresponds to each size’s meter span, detailed on page 11 of our installation and operations manual which is available on our product page and resources page. Refer to page 17 of the IOM manual for a detailed wiring diagram.
Do I need to ground my GEM and how should this be done?
Proper grounding is crucial to ensure the GEM/GEM2 delivers accurate, reliable performance, especially with flexible piping like PVC. Check page 14 of our manual for grounding specifics. Note: large grounding rings are not needed with the GEM.
Who should I contact for help with troubleshooting my equipment?
If you cannot find the answers in our manual, contact your local distributor for further assistance. They are ready to provide dedicated support to ensure your GEM2 operates smoothly.
If my meter is battery powered only, how long should I expect the battery to last?
Battery life depends on the application and meter usage. Under favorable conditions, your original battery pack could last up to five to six years.
How often should I recalibrate my GEM?
Our Mag Meters do not have mechanical parts that wear out, ensuring long-term accuracy. All GEM flow meters are factory calibrated and their calibration is traceable to the National Institute of Standards and Technology (NIST) per ISO/IEC 17025: 2017.
Once calibrated, our electromagnetic flow meters maintain their stated accuracy over time without any annual recalibrations. If you have a requirement for periodic calibrations, please contact your distributor
Is there a way to record my data without external telemetry devices?
Yes! The GEM2 offers an optional data logger, storing up to five years of data at 10-minute intervals, all without significantly impacting battery life. Access and export data easily using our GEM app on your phone or tablet.
Can I use a GEM for a high-temperature corrosive fluid?
Absolutely! GEM flow meters come with various liners (Teflon® PTFE, FEP, PFA) and electrodes (Hastelloy C, Titanium, Tantalum, Tungsten Carbide) to handle even the most caustic applications. Contact your distributor to find the perfect configuration for your needs.
Can I use a GEM for potable water applications?
Yes! All GEM meters 4” and above are certified by NSF/ANSI/CAN 61 and 372. For applications requiring smaller meters, please contact us to explore your options.