OVERVIEW
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.
FEATURES
- No lengthy corrosion coupon delays – instant measurement
- Corrosion rate updates every 2.5 minutes
- Data logs every 5 minutes
- Stores up to one year of log data
- Pre-configured for your metallurgy
- LPR technology
- CE Approved
- Alarm Relay
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 | 2×8 LCD Display USB Host emulation |
| UP-DOWN & Model Switches | UP & DOWN pushbuttons 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 SPECIFICATION
| LPR Sensor (Linear Polarization Resistance) | Non-metallic sensor rated at 125°F (50°C) max, 125 psi max. Immersed components: ABT, Nylon & Epoxy |
| LPR_CS | 1010 Carbon Steel |
| LPR_CU | CDA 110 Copper |
| LPR_AM | CDA 443 Admiralty |
| LPR_CN | 90:10Cupro-Nickle |
| LPR_ZN | Zinc Galvanizing |