LogR Corrosion Monitor
Corrosion monitoring system
The ProMinent® LogR is a single channel corrosion rate monitor using Linear Polarization Resistance (LPR) to measure the corrosion rate of metals in cooling water treatment applications. Weight loss coupon results can take weeks or months. With the LogR, a reading is taken every 2.5 minutes giving accurate corrosion rates instantly. Select from carbon steel, copper or admiralty sensors.
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Benefits
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No lengthy corrosion coupon delays ‐ instant measurement
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Corrosion rate updates every 2.5 minutes
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Data logs every 5 minutes
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Stores up to one year of log data
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Pre-configured for your metallurgy
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LPR technology
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Certifications: MET (UL/CSA 61010-1), CB Scheme
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Alarm relay
Package Includes
- Monitor, sensor, 24VDC/120VAC power supply
- Universal power adapter
- 3/4” sensor entry “T” fitting
- 4-20mA output
- Backplate mounting hardware
- USB flash drive with startup and O&M manuals
Ordering Information
- Carbon Steel sensor package (P/N 7760788)
- Copper sensor package (P/N 7760789)
- Admiralty sensor package (P/N 7760790)
- 90:10 Cupro - Nickel sensor package (P/N 7761467)
- Zinc sensor package (P/N 7761468)
| LogR Specifications | |
| Corrosion Rate Measure & Display | 0.01 to 50.0 mpy for steel |
| Updates every 150 seconds | |
| 4-20mA Output | Three wire: Power, Ground & 4-20mA out Resolution nominally 1 part in 4000 |
| Data Logging | 1 Year @ 5 minute intervals |
| Alarm Contacts | Normally closed |
| Rated 24VDC, 250mA | |
| Thermally fused 300mA | |
| Display & Data Link | 2x8 LCD Display |
| USB Host emulation | |
| UP-DOWN & Mode Switches | UP & DOWN push buttons |
| 8 selectable display modes, 0 to 7 | |
| Conductivity | 50 to 9999 uS |
| Power | 9-24VDC, 100mA max. |
| Polarity Protected | |
| LogR Enclosure | Non-metallic, IP65 |
| 4 3/8" x 4 3/8" x 1 3/4" | |
| 110mm x 110mm x 45mm | |
| Wiring Terminal Blocks | Rated AWG 16-26 |
| 3.5mm spacing |
| Sensor Specifications | ||
| LPR Sensor (Linear Polarization Resistance) | Non-metallic sensor rated at 125ºF (50ºC) max, 125 psi max. Immersed components: ABT, Nylon & Epoxy | Digital, DC isolated 3 wire sensor, Power, Common & Data. Sensor supplies with 3/4" SCH 80 threaded PVC 'T' fitting with 3/4" non-metallic sensor entry fitting and 3m, 10ft of 3xAWG 22 PVC jacketed cable. |
| LPR_CS | 1010 Carbon Steel | 1 1/4" L x 3/16"D electrode set supplied installed. Sensor accepts standardized LPR electrodes threaded #4-40 UNC |
| LPR_CU | CDA 110 Copper | 1 1/4" L x 3/16"D electrode set supplied installed. Sensor accepts standardized LPR electrodes threaded #4-40 UNC |
| LPR_AM | CDA 443 Admiralty | 1 1/4" L x 3/16"D electrode set supplied installed. Sensor accepts standardized LPR electrodes threaded #4-40 UNC |
| LPR_CN | 90:10Cupro-Nickle | |
| LPR_ZN | Zinc Galvanizing |