Greyline Electromagnetic Flow Meter
Greyline ISM 5.0 Insertion Flow Meter
Accurate, Low-Cost Alternative to Full-bore Magnetic Flow Meters
Measure flow of water and conductive liquids in full pipes from 3 to 72″ (80 to 1800 mm) diameter.
The ISM 5.0 Insertion Magmeter senses flow using a low maintenance electromagnetic design with no moving parts. The dual-electrode sensor and continuous auto-zero function provide high accuracy – even at low flow rates. State-of-the-art electronics and patented design features help maintain its NIST traceable accuracy over time.
The ISM 5.0 dual pair electrode sensor inserts through a tap in the pipe wall. It can be easily installed in new pipe systems or by a hot tap in pressurized pipes with flowing liquids. There are no moving parts so obstruction to flow and pressure drop is minimal.
Installation through a full port ball valve allows easy retraction and reinsertion without shutting down flow. The insertion depth is adjustable according to the pipe diameter and an insertion depth gauge is supplied with each flowmeter. The optional Installation Hardware Kit includes a branch outlet, close nipple, and full port 1” isolation valve.
Use it for :
- Potable Water
- Water Distribution
- Pumping Station
- Irrigation Water
- Treated Water
- Reclaimed Water
- Filter Balancing and Blackwash
General Specifications
| Flow Measurement Range: | 0.1 to 20 ft/sec (0.03 to 6 m/sec), 200:1 turndown |
| Accuracy: | ±1.0% of reading from 2 to 20 ft/sec (0.6 to 6.0 m/sec) |
| ±0.02 ft/sec (0.06 m/sec) below 2 ft/sec (below 0.6 m/sec) | |
| Nominal Pipe Size: | 3″ to 72″ diameter (DN 75 mm to 1800 mm) |
| Liquid Temperature Range: | -15° to 250°F (-26 to 121°C) |
| Electronics Operating Temperature: | -20° to 150°F (-28° to 65°C) |
| Maximum Operating Pressure: | 200 psi (14 bar) |
| Pressure Drop: | Less than 0.1 psi (0.007 bar) at 12 ft/sec (3.65 m/sec) |
| Conductivity Range: | 20 to 60,000 μSiemens/cm |
| Power Input: | 20-28V DC, 250mA @24V DC (6 Watts) |
| 20-28V AC, 50-60Hz, 8VA | |
| Analog Output: | Selectable 4-20mA, 0-5V or 0-10V |
| Frequency Output: | 0-15V peak pulse, 0-500Hz |
| Scalable Pulse Output: | Isolated solid state dry contact rated 50V DC, 100mA maximum |
| Pulse duration: 0.5, 1, 2 or 6 seconds | |
| Signal Cable Length: | 25 ft (7.6 m)PVC jacketed multi-conductor |
| Electronics Enclosure: | Watertight, airtight, dust proof (IP 68) powder coated cast aluminum |
| Wetted Materials: | 316L stainless steel, polypropylene |
| Approximate Shipping Weight: | 6 lbs (2.75 kg) |
Options
| Model ISM 5.0-B | For bi-directional flow |
| Extra Sensor Cable: | separate length 25, 50 or 100 ft (7.6, 15 or 30 m) PVC jacketed multi-conductor |
| Standard Installation Hardware Kit: | Threaded branch outlet, close nipple, 1″ full-port isolation valve |
| Hot Tap Installation Hardware Kit: | 1-1/4″ branch outlet, close nipple, 1-1/4″ full port ball valve |
| Grounding Rings: | ANSI Class 150, 316 Stainless Steel from 3 to 42″ nominal size |
| Grounding Probes: | Hot Tap, stainless steel |
| Remote Displays: | D-100-MOD rate/total display with 2 analog inputs, Modbus RTU or TCP/IPDB-1201-01 LCD display with flow direction LED’s |