Remote Monitoring for Rectifiers, Test Points and Bonds
Gain deep insight into the performance of your CP system with the continuous remote monitoring capabilities of the CorTalk RMU2. Simple to install and configure, the CorTalk RMU2 is an accessible and robust system engineered for continuous remote monitoring of rectifiers, bonds and test points. The device is available in satellite or cellular communication configurations and can operate autonomously for 10+ years using standard lithium AA batteries that are easily replaced in the field. This battery-powered solution can be used to monitor remote sites such as test points and bonds, in addition to conventional rectifiers, TEG and solar applications. The RMU2 has been designed with integral high-energy surge suppression and provides unprecedented lightning immunity due to no connections to electrical ground.
The RMU2 monitors and transmits nine channels of information – four high-accuracy, galvanically isolated, AC/DC capable analog inputs are typically used to monitor volts, amps and/or 4-20mA signals from external equipment. An integral non-contact AC Line presence sensor can be used to determine if AC line voltage is present. An integral magnetic sensor can be used as a rectifier door sensor or tamper detection alarm. The RMU2 measures temperature and internal battery voltage and a user-accessible switch can be configured to record site visit information. The RMU2 is available with an optional “Measurement Recorder” which will capture analog readings every 6 hours with multiple memory storage options available.
Measurement data is wirelessly transmitted to the CorView Cloud Platform. CorView manages all field data communications, maintains three years of measurement data, sends alarm exception and system performance emails, and provides password-protected remote customer access. CorView is a highly secure environment that can be accessed using any web-enabled device as well as native iOS and Android apps. Measurement data is presented in an intuitive tabular format or graphical mapping display that color-codes abnormal measurements or site conditions for quick user interpretation. CorView can also provide near real-time email notifications of abnormal measurements and alarm conditions.
| Features | Benefits |
|---|---|
| Fast, simple installation | The compact, weather-proof RMU2 is designed for the measurement terminal to easily fit inside a rectifier cabinet or a NEMA4 enclosure with an external antenna that has been tested and proven in the most extreme applications – the system can typically be installed in under an hour. |
| Designed for high accuracy and resilience | External analog channels are high impedance and galvanically isolated with multistage lightning protection. AC rejection filters utilized for DC measurements to provide maximum accuracy. Several voltage ranges to accommodate a wide range of sensors (current shunts, reference cells, and direct voltage measurement) |
| Intelligently engineered with additional functionality | RMU2 platform has an AC Line Presence Sensor available to determine voltage is present, a magnetic sensor on enclosure doors that will alarm when unauthorized tampering occurs, an optional Measurement Recorder to capture analog readings, and a 4-20mA mode to receive signals from external equipment. |
| Multiple pre-defined configurations | The RMU2 can be utilized at test points and bond monitoring applications, in addition to the more conventional rectifier, TEG and solar applications. AC mitigation systems can also be monitored with an optional AC current transformer. |
| Intuitive controls and configurations | The RMU2 comes standard with an external “TEST” button and dual colour LEDs for manual controls. It can be easily programmed with our standard Programming Interface and a PC and can also be completed with a compatible iOS or Android-based mobile device and our available Bluetooth Interface. |
| Global communication capabilities | Available with cellular or satellite communication capability, the RMU2 can transmit data from virtually any location. This helps improve the quality and frequency of data collection, while reducing the need for workers to undertake long, potentially dangerous trips, to remote sites. |
| Smart readings and transmissions | To minimize airtime costs, the RMU2 stores four sets of periodic readings and then transmits all of those readings via four available factory-configured satellite or cellular data transmission plans. Irrespective of data plans, the RMU2 takes measurements every 6 hours, the device will immediately initiate a transmission when an alarm condition is detected. Alarms can be suppressed during interruption. |
| Built to withstand the toughest conditions | Lightning, surge and overvoltage protection and broad operating temperature range (-40° to +60°C [-40° to +140°F]). |
| Long-life battery | User-replaceable standard lithium AA batteries provide 10+ years of monitoring and data transmission and the RMU2 is designed with integral high-energy surge suppression and provides unprecedented lightning immunity due to no connections to electrical ground. |
Specifications
| RMU2 Base – Environmental | |
|---|---|
| Operating Temperature | -40° to +60° C (-40° to +140° F) |
| Storage Temperature | -45° to +80° C (-49° to +176° F) |
| Maximum Altitude | 5000 meters above sea level |
| Humidity | 0 to 100% RH non-condensing |
| RMU2 Base – Physical + Power | |
|---|---|
| Weight | 135 grams (0.3 lbs) |
| Size | 100mm x 38mm x 38mm (4.0” x 1.5” x 1.5”) |
| Battery Life | L91 Lithium AA batteries — >7 years based on readings every 2 days, sent every 8 days |
| RMU2 Antenna – Environmental | |
|---|---|
| Operating Temperature | -40° to +60° C (-40° to +140° F) |
| Storage Temperature | -45° to +80° C (-49° to +176° F) |
| Maximum Altitude | 5000 meters above sea level |
| Humidity | 0 to 100% RH non-condensing |
| RMU2 Antenna – Physical + Power | |
|---|---|
| Weight | 275 grams (0.6 lbs) |
| Size | 97mm x 97mm x 52mm (3.8” x 3.8” x 2.0”) |
| Battery Life | L91 Lithium AA batteries — >7 years based on readings every 2 days, sent every 8 days |
Documents & software
| Name | Description | Type |
|---|---|---|
| MOBILTEX CorTalk RMU2 | Product Brochure |
Manual
| Name | Description | Type |
|---|---|---|
| MOBILTEX CorTalk RMU2 Manual | RMU2 Manual V1.21 |
| Name | Description | Type |
|---|---|---|
| CorTalk RMU2 Install Pack v1.0.0.19 | RMU2 Configuration Utility, Firmware and Drivers | ZIP |
| RMU2 Config Apple iOS App | Download from iTunes | Link |
| RMU2 Config Android App | Download from Play Store | Link |
| CorTalk Full Install Pack v1.0.0.25 | Downloads ZIP file | ZIP |
| LTE Swap Apple iOS App | Download from iTunes | Link |
| LTE Swap Android App | Download from Play Store | Link |
| CorView Apple iOS App | Download from iTunes | Link |
| CorView Android App | Download from Play Store | Link |
Frequently asked questions
The status LED on the RMU2 base goes solid green and then turns off. Is this OK?
Yes, it is OK. During normal operation, the status LED will illuminate solid green for about 8 to 40 seconds and then turn off. The RMU2 goes into a sleep state to conserve battery consumption after taking measurements and making a transmission to CorView.
What is the difference between an RMU2-SI, RMU2-S and RMU2-G antenna?
The RMU2-SI is the Iridium satellite communications variant of the RMU2. The RMU2-S utilizes the Globalstar satellite network. The RMU2-G is the cellular RMU2 antenna.
Which cellular network does the RMU2-G antenna utilize?
AT&T in the USA, Rogers in Canada. Cellular network coverage maps can be used to ascertain if your sites have cellular coverage.
Media
Options
| Title | Image | Description | SKU (s) |
|---|---|---|---|
| RMU2 Wiring Kit |  | 1 meter (3.2 ft) wiring harness, assorted crimp terminals, cable ties, adhesive tie mounts. The components of this kit are typically used to interconnect the measurement signals from the rectifier, test point or bond to the RMU2-B. | Mobiltex P/N A20103RMU20 |
| External 3:1 Voltage Divider |  | Required for applications that measure greater than 150VDC or 105VAC. Typically used when actual AC line voltage (110/120 or 220/230 VAC) measurement is desired. | Mobiltex P/N A01160RMU21 |
| AC Mitigation Measurement 1 to 40 Amp Current Transformer |  | For RMU2. Max wire size 0.4″. Size 1.5x1x.9″ | Mobiltex P/N A20A00XFM02 |
| AC Mitigation Measurement 1 to 60 Amp Current Transformer |  | For RMU2. Max wire size 0.58″. Size 1.7×1.2×1.2″ | Mobiltex P/N A20A00XFM01 |
| AC Mitigation Measurement 2 to 80 Amp Current Transformer |  | For RMU2. Max wire size 0.94″. Size 2.6×2.0x1.3″ | Mobiltex P/N A20A00XFM07 |
| PRF1 Four channel low-pass analog filter |  | For use with pulse rectifiers. | Mobiltex P/N A15000FLTR1 |
| LCT2A Low Current AC sense transformer |  | 1mA to 50mA. In potted enclosure. | Mobiltex P/N A15000LCT02 |
| Title | Image | Description | SKU (s) |
|---|---|---|---|
| RMU1/2/3-BT Programmer Kit |   | Universal programming kit for RMU1, RMU2, and RMU3 devices. Includes RMU1/2/3 base programmer (A1506033101), RMU1ADP (A1506033001), Lithium Ion battery pack, soft case and USB stick with programming software. Capable of Bluetooth communications with a phone/tablet. Can also be used with a PC through the USB connection. | Mobiltex P/N A20A0333101 |
| RBT1 Bluetooth Interface Cable |  | Allows programming of RMU2 using a Bluetooth Smart equipped smart phone or tablet. | Mobiltex P/N A1506032101 |
| 1-meter Interconnect Cable |  | 1 meter (3.2 ft) long interconnection / extension cable c/w molded waterproof connectors. | Mobiltex P/N W16400RMU03 |
| 3-meter Interconnect Cable |  | 3 meter (9.8 ft) long interconnection / extension cable c/w molded waterproof connectors. | Mobiltex Part Number W16400RMU01 |
| 8-meter Interconnect Cable |  | 8 meter (26.2 ft) long interconnection / extension cable c/w molded waterproof connectors. | Mobiltex P/N W16400RMU02 |
| Title | Image | Description | SKU (s) |
|---|---|---|---|
| RMU2 Universal Mounting Bracket |  | Aluminium bracket, pipe clamp, and bracket mounting screws. This kit can be used for installations that require the RMU2-S or RMU2-G to be mounted in a configuration other than the top of the rectifier lid or applications using standard ½” NPT electrical fittings. This kit allows mounting on either vertical or horizontal surfaces as well as vertical pipe or pole installations. | Mobiltex P/N A20103RMU21 |
| 4-20mA Transducer Shunt Kit |  | Kit of 4 precision 250 ohm resistors for installations using 4-20mA measurement transducers. | Mobiltex P/NA20003RMU21 |
| Replacement Battery Pack |  | Kit of 5 AA batteries for maintenance purposes. | Mobiltex P/N B02221RMU20 |
| Lockable RMU2 NEMA 4X enclosure |  | 6.75”W 7.5”H 5.5”D, c/w short M8 cable | Mobiltex P/N A03700RMU21 |
