HI981520 Marine Monitor pH, Marine Salinity, and Temperature
- Hanna instruments - HI981520
- Testing and monitoring salinity in saltwater aquariums
Marine Monitor
pH, Marine Salinity, and Temperature
Testing and monitoring salinity in saltwater aquariums is an ongoing task.
The HI981520 is an easy to use vertical mount unit that continuously monitors and displays conductivity and pH.
The system can be calibrated at one or two points for pH and at one point for conductivity.
Seawater salinity is expressed in either parts per thousand (ppt),Practical Salinity Units (PSU),or Specific Gravity (S.G.).
A high/low alarm can be configured for each parameter and the results are displayed on a large, easy to read LCD.
The attached two-electrode conductivity probe features a built-in temperature sensor for rapid, high-accuracy temperature readings.
The Hanna HI1286 pH double junction, gel-filled pH electrode features a PEI resin body that is easy to clean and resistant to many aggressive chemicals. Additionally, the double junction design is less susceptible to clogging for fast and stable readings.
- Waterproof
- Automatic temperature compensation (ATC)
- Dual pin graphite EC probe
Ordering Information
HI981520-01 (115 VAC) and HI981520-02 (230 VAC) Marine Monitor is supplied with HI1286 pH electrode; attached EC and temperature probe; pH 7.01 buffer solution, 20 mL sachet(2 pcs.); pH 10.01 buffer solution, 20 mL sachet (2 pcs.); 35.00 ppt salinity calibration solution, 20 mL sachet (2 pcs.); electrode cleaning solution, 20 mL sachet (2 pcs.); suction cup with clip (2 pcs.); self-adhesive fastener (2 pcs.); 12 Vdc power adapter; quick reference guide with QR code for manual download and instrument quality certificate.
Specifications ( model: HI981520 ) | |
pH | |
Range* | 0.0 to 14.0 pH |
Resolution | 0.1 pH |
Accuracy | ±0.2 pH |
Calibration | manual or automatic two-point calibration in 7.01 and 10.01 pH |
ppt | |
Range | 0.0 to 70.0 ppt (g/L) |
Resolution | 0.1 ppt (g/L) |
Accuracy | ±1.0 ppt between 0.0 ppt and 40.0 ppt ±2.0 ppt between 40.0 ppt and 70.0 ppt |
Calibration | automatic, single point in 35.00 ppt |
PSU | |
Range | 0.0 to 70.0 PSU |
Resolution | 0.1 PSU |
Accuracy | ±1.0 PSU between 0.0 and 40.0 PSU ±2.0 PSU between 40.0 and 70.0 PSU |
S.G. | |
Range | 1.000 to 1.041 S.G. |
Resolution | 0.001 S.G. |
Accuracy | ±0.001 S.G. |
Temperature | |
Range | 0.0 to 50.0 °C (32.0 to 122.0 °F) |
Resolution | 0.1 °C / 0.1 °F |
Accuracy | ±0.5 °C / ±1.0 °F |
Compensation | Automatic, 5 to 50 °C (41 to 122 °F) |
Alarm | |
pH | High or Low with Enable or Disable option |
EC | High or Low with Enable or Disable option |
Temperature | High or Low with Enable or Disable option |
High/Low Value : with High/Low alarm Enabled | |
Probes | |
pH | HI1286 double junction pH electrode with 2 m (6.6’) cable |
EC | attached |
- | |
Power Supply | 12 Vdc adapter (included) from 115 Vac, and 230 Vac |
Environment | 0 to 50°C (32 to 122°F); RH max 95%, non-condensing |
Casing | IP65 ingress protection |
Dimensions | 125 x 185 x 38 mm (4.92 x 7.28 x 1.49”) |
Weight | 300 g (10.6 oz) |
* The range may be limited by the probe’s limits.
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