Water Testing Meter Applications:

• Electroplating
• Water conditioning
• Wastewater monitoring
• Aquaculture (fish farming)

• Hard carrying case
• Combination conductivity/TDS/salt probe (General P/N CDPB03)
• 2 GB SD memory card
• User’s manual

• Embedded Microcontroller: Custom one-chip LSI device
• Display Type: LCD with green backlight
• Display Size: 2.05 x 1.5 in. (52 x 38mm)
• Probe Type: Carbon rod electrode
• Parameters (units) Measured:
  • Conductivity (uS, mS)
  • Total dissolved solids (ppm)
  • Salt content (% weight)
  • Temperature (°F, °C)
• Measurement Accuracy:
  • For conductivity: +- 2% of full-scale reading +1 digit, TDS
  •  For temperature: ± 0.8°C/± 1.5°F
  • For salt: ±0.5% of value
• Measurement Resolution:
  • For Conductivity: 0.1 uS @ 200 uS full-scale (f.s.), 0.001 mS @ 2 mS f.s., 0.01 mS @ 20 mS f.s., 0.1mS @ 200 mS f.s.
  • For TDS: 0.1 ppm @200 ppm f.s., 1 ppm @ 2,000 ppm f.s., 10 ppm @ 20,000 ppm f.s., 100 ppm @ 100,000 ppm f.s.
  • For Temperature: 0.1°F/0.1°C
  • For Salt: 0.01%
• Temperature Compensation:
  • Automatic from 32° to 140°F (0° to 60°C)
  • Temperature compensation factor is manually variable
• Storable/Recallable Readings: Maximum, minimum
• Data Logging Sampling Time: 1 second to 9 hours
• SD Card Capacity: 1 GB to 16 GB
• Settable parameters: Date, time, auto power off, beep sound, sampling time, decimal point or comma decimal division, temperature unit, temperature compensation level
• Operating Temperature:
  • 32° to 122°F (0° to 50°C) for meter
  • 32° to 140°F (0° to 60°C) for probe
• Operating Relative Humidity: 0 to 85%
• Power Supply: Six Alkaline “AA” batteries or optional 9-VDC AC adapter
• Power Consumption:
  • 14 mADC (normal operation, with backlight off and SD card not saving data)
  • 37 mADC with backlight on and card saving data
  • 49 mADC with backlight on and card saving data
• Dimensions of Meter: 6.97 x 2.68 x 1.77 in. (177 x 68 x 45mm
• Weight of Meter: 1.08 lb. (489g)
• Dimensions of Probe: 0.86 in. (diameter) x 4.72 in. (L) (22mm x 120mm)

1. No muss. Unlike data loggers that use an RS-232 interface, General’s SD card instruments don’t require the end user to buy, stock and connect cables.
2. No fuss. They also don’t require the user to add multiple jumpers between cable connectors to set up a serial communications link via RS-232. Adding even one jumper takes time and makes connections prone to failure.
3. No software. General’s SD instruments don’t even need software. The automatically store the data they capture in a format readable by Microscoft’s Excel spreadsheet program. Any computer equipped with Excel will automatically display – as a table or graph – the data logs on an SD card inserted into it.
4. No limits. SD cards are now available in capacities up to 32 GB. They’re not just a high-capacity removable storage medium, but a removable one as well. And because they’re solid-state, SD cards are inherently more reliable than rotating electromagnetic media like CD’s or DVD’s.
5. No waste. Because the SD cards are removable, they’re portable. Once you’re done uploading the data logs on an SD card to your computer, you can erase the card and use it again – with the same SD card instrument or a different one.