Two-way communication enables command and control functions with precise GPS-synchronized interruption
Designed to fit entirely under a standard CP test station, the RMU1+INT1 is truly a “hidden talent” delivering a small, powerful tool for remote monitoring of CP single or double coupons and structure bond applications that also provides permanent interruption functionality.
Easily add GPS-synchronized interruption
The CorTalk RMU1 collects and transmits CP performance data and GPS location as frequently as every few hours via satellite or cellular network. Multiple analog measurement channels on the RMU1 provide accurate results for all required AC and DC parameters. An easy to replace battery provides up to 10 years of reliable operation and data transmission and helps maximize lightning isolation.
The INT1 interrupter can be added at any time and is quickly connected to the RMU1 with a single cable. The INT1 automatically pairs with the RMU1 and can remain permanently installed in order to effectively take off-potential readings. Eliminate the need to install portable interrupters at test stations or to physically break bonds between pipelines, foreign rectifiers and structures when performing close interval survey (CIS) activities.
Combined with the CorView Cloud Platform, pipeline operators can implement and control a network of RMU1+INT1 devices to gain deep insight into the performance of the CP system, generate reports to instantly identify areas of concern, and optimize field survey activities.
AC Interference [ACI] : DC Interference [DCI] : AC Mitigation : Stray Current Remote Monitoring- Test Station: Casings
- Test Station: Coupons, Galvanic Anodes, Reference Electrodes
- Test Station: Critical Bonds & Non-critical Bonds
- Test Station: Monitoring with GPS sync'd Interruption
- >10Yr Battery Runtime || Field Replaceable || Standard AA L91 Lithium
- 1000000 Readings Datalogger || Optional Feature
- Future-proofed CAT-M1 [LTE-M 4G/5G] Cellular Backhauls
- Future-proofed Satellite [Iridium & Globalstar] Backhaul
- Highest Lightning, Surge, Overvoltage Immunity || No Earth Ground Bond
- Unique AC Peak Detection || Optional Feature
| Features | Benefits |
|---|---|
| Fast, simple installation | The compact, weather-proof RMU1 is designed to fit entirely inside a standard CP test station and can be installed in about 20 minutes |
| Engineered for expandable functionality | RMU1 Generation 4 hardware platform allows connection of additional external accessory modules like the INT1 for GPS synchronized interruption [United States Patent US-11753729-B2], the TS1 temperature sensor, and a 4-20mA Mode |
| Multiple pre-defined configurations | The RMU1 can be wired for single coupon, dual coupon, separate AC and DC coupons, and bond monitoring applications |
| Fully functional interruption features via INT1 | 2 DC/AC potential measurement channels and 1 DC/AC current measurement channel — 7A maximum for bond/anode current switching — +/-31V DC, 22V AC potential range |
| Intuitive controls and configurations | The RMU1 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 RMU1 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 |
| 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 AA battery provides up to 10 years of monitoring and data transmission and maximizes lightning isolation |
Specifications
| RMU1 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 |
| RMU1 Physical + Power | |
|---|---|
| Weight | 225 grams (0.5 lbs) |
| Size | 80mm x 80mm x 110mm (3.15”x3.15”x4.33”) |
| Battery Life | L91 Lithium AA batteries — Typically 10 years based on readings every 7 days (no INT1). Typically 5 years based on readings every 12 hours and 2 weeks of interruption per year (with INT1). |
| INT1 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 |
| INT1 Physical + Power | |
|---|---|
| Weight | 300 grams (0.7 lbs) |
| Size | 80mm x 28mm x 172mm (3.15”x1.10”x6.80”) |
| Battery Life | L91 Lithium AA batteries — Typically 5 years based on readings every 12 hours and 2 weeks of interruption per year |
Documents & Software
| Name | Description | Type |
|---|---|---|
| MOBILTEX CorTalk RMU1-INT1 | Product Brochure ENGLISH | |
| MOBILTEX CorTalk RMU1+INT1 ES | Product Brochure SPANISH |
| Name | Description | Type |
|---|---|---|
| MOBILTEX CorTalk RMU1 Manual | RMU1 Manual v1.20 |
| Name | Description | Type |
|---|---|---|
| CorTalk RMU1 Install Pack v1.0.0.26 | RMU1 Configuration Application, Firmware and Driver v1.20.0.0A | ZIP |
| RMU1 Config Apple iOS App | Download from iTunes | Link |
| RMU1 Config Android App | Download from Play Store | Link |
| CorTalk Full Install Pack v1.0.0.26 | Download 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
What is the difference between an RMU1-I, RMU1-S and RMU1-G antenna?
The RMU1-I uses Iridium satellite for connectivity. The RMU1-S is the Globalstar satellite communications variant of the RMU1. The RMU1-G is the cellular version.
Which cellular network does the RMU1-G antenna utilize?
AT&T in the USA, Rogers in Canada. Cellular provider coverage maps can be used to ascertain if your sites have cellular coverage.
The RSSI (Receive Signal Strength Indicator) is different each time my RMU1-I reports in. Is this normal?
Yes, this is normal. The Iridium satellites the RMU1-I utilizes are in-motion orbiting around the earth. When the satellite is directly above the antenna, it will report a strong RSSI. If the satellite is low on the horizon when the RMU1 transmits, a lower RSSI is possible. The RSSI will change throughout the day as the satellite constellation moves through its orbit.
How can I tell if my RMU1 is transmitting a message to CorView?
Look for “Tx” and an antenna icon near the bottom left corner of the RMU1’s display. This indicates that the communications antenna is transmitting a message to CorView. There could be minor delays depending on network traffic and site coverage.
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