Hydramag Battery-powered electromagnetic flow meter
Water flowA battery-powered electromagnetic flow meter for conductive liquids from DN 10 to DN 200, with 1% accuracy (0.5% on request), a bidirectional 0.2-12 m/s range, 50 µS/cm minimum conductivity, RS485/UART/pulse outputs, and IP67/IP68 sensor protection
- Battery-powered electromagnetic flow meter for conductive liquids, DN 10 to DN 200
- Accuracy 1% for 1-10 m/s (0.5% on request); minimum conductivity 50 µS/cm
- Bidirectional flow range 0.2-12 m/s (1:60 turndown) with negligible pressure loss
- Replaceable lithium battery pack or external 12 V DC (max. 500 mA)
- Outputs: pulse, RS485, and UART via M12 connectors, with Micro SD archiving
Overview
The Hydramag is a battery-powered electromagnetic flow meter for conductive liquids, engineered for water utilities, district cooling, and industrial process lines that need accurate bidirectional measurement without a permanent power feed. With no moving parts in the flow path and negligible pressure loss, it delivers maintenance-light metering across a wide turndown.
It measures across DN 10 to DN 200 with a bidirectional flow range of 0.2 to 12 m/s (1:60 turndown) and an accuracy of 1% from 1 to 10 m/s, improvable to 0.5% on request, on fluids with a minimum conductivity of 50 µS/cm. Empty-pipe detection and grounding/detection electrodes are provided across the full DN range, with electrode options in CrNi steel, Hastelloy C4, Titanium, and Tantalum to match the medium.
Power comes from a replaceable lithium battery pack or an external 12 V DC supply (max. 500 mA), and outputs include pulse, RS485, and UART via M12 connectors with Micro SD archiving. The sensor is rated IP67/IP68, handles media up to 150 °C (depending on lining and design), and offers process connections in flanged DIN (EN 1092), threaded (EN 10226-1), and food-grade fittings.
Everything for specification & install
Specifications
Full technical data below. Refer to the datasheet for ordering codes and dimensional drawings.
Technical Data
| Power | Replaceable lithium battery power pack / external (12 V DC, max. 500 mA) |
| Input power | M12 – 5p (external powering, UART) | M12 – 8p (ImpOut, RS485) |
| Type of electronics | Meter mount (H – standard), (Tmax 90 °C), Remote mount(R), (standard cable length 3 m) |
| Measurement period | 1...60 s |
| Diameter nominal | DN 10...200 |
| Lining material | Rubber (hard, soft, with potable water test certificate): DN 25...DN 200 (T min 0 °C , Tmax 70 °C) PTFE: DN 15...DN 80 (Tmin –25 °C , Tmax 150 °C for separate version) Rilsan: DN 25...DN 200 (Tmax 70 °C for separate version) ETFE: DN 100...DN 200 (Tmax 150 °C), PFA, Ceramics (upon agreement with the manufacturer |
| Electrode material | CrNi steel DIN 1.4571, Hastelloy C4, Titanium, Tantalum |
| Frame | All-welded |
| Sensor material | Flanged– stainless steel and structural steel with polyurethane coating Wafer, Threaded, Food grade – stainless steel |
| Process connections | Wafer (PN25 only) Flanged DIN (EN1092) – carbon or stainless steel Threaded (EN 10226-1) Food grade (DIN 11851 fitting, clamp) |
| Pressure | PN10 (DIN), PN16 (DIN), PN25 (DIN), PN40 (DIN), PN64 (DIN), PN100 (DIN) 10K (JIS), 20K (JIS), 40K (JIS) 150lb (ANSI), 300lb (ANSI |
| Min. conductivity of the measured fluid | 50 μS/cm |
| Flow range (Qmin/Qmax) | bidirectional 0,2 ...12 m/s (1:60) |
| Flow meter accuracy | 1 % for 1...10 m/s (0.5% on request) |
| Additional electrodes | Grounding and detection electrodes for empty piping |
| Pressure loss | Negligible |
| Additional electrodes | Grounding and detection electrodes for empty piping (DN 10...DN 200) |
| Empty piping detection | DN 10...DN 200 |
| Display unit | one line, alphanumerical LCD |
| Controls | 2× external button (viewing values) 3× internal button (viewing + parameter changing) |
| Outputs | M12 – 5p (external powering, UART) M12 – 8p (ImpOut, RS485) |
| Archivation | Micro SD |
| Max. temperature of medium | 150 °C (according to the lining and design) |
| Max. ambient temperature | 5...55 °C |
| Degree protection of sensor | IP67, IP68 |
| Degree protection of electronics | Meter mount (H – standard), IP65, IP67 |
Flow Ranges
| Diameter (DN) mm (Qmin [m3/h] 1/60 (0,2 m/s)) | Qmax [m3/h] (12 m/s) |
| DN 10 (0.06) | 3.4 |
| DN 15 (0.13) | 7.6 |
| DN 20 (0.24) | 14.2 |
| DN 25 (0.35) | 21 |
| DN 32 (0.6) | 34 |
| DN 40 (0.9) | 54 |
| DN 50 (1.4) | 84 |
| DN 65 (2.4) | 144 |
| DN 80 (3.6) | 220 |
| DN 100 (5.6) | 340 |
| DN 125 (8.9) | 534 |
| DN 150 (13) | 760 |
| DN 200 (23) | 1350 |
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