Marine Aquarium Monitor for pH, EC, Marine Salinity and Temp (HI-981520)

Product ID:

787

Price:£354.49

Quantity:

Testing and monitoring salinity in saltwater aquariums is an ongoing task. The HI-981520 Marine Monitor is the ideal solution for aquarists looking to continuously monitor salinity levels, pH, EC and Temp in saltwater aquariums or aquaculture.

Temperature

Salinity

The HI-981520 Marine Monitor 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 Marine Monitor HI-1286 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

Package Contents

HI-981520 monitor with attached EC & temperature probe
HI-1286 replaceable pH electrode
pH 7.01 buffer solution, 20 mL (2 sachets)
pH 10.01 buffer solution, 20 mL (2 sachets)
35.00 ppt salinity calibration solution, 20 mL (2 sachets)
Electrode cleaning solution, 20 mL (2 sachets)
Suction cup (2 pieces)
Self-adhesive strip (2 pieces)
12 VDC power adapter
pH electrode quality certificate

• Quick reference guide with instrument quality certificate

Main Features

Two Alarm operating modes (High / Low Value) for each supported parameter

High / Low Alarm generated when measured value exceeds or drops below configured parameter High / Low Value

Acoustic signal generated each time an alarm is triggered

EC probe contains an integral temperature sensor that simplifies installation

All readings are compensated for variations in temperature

More features

Method and Parameter: Chosen parameter and method used is displayed along with the reading.

Dedicated Setup Key: A dedicated setup key allows users to quickly navigate to setup options.

Splash-proof Keypad: Intuitive on-screen menus are easy to navigate with the splash-proof keypad.

Power Supply: The 12 Vdc adapter (included) allows for continuous monitoring

Fixed EC probe: Built-in temperature sensor at the tip of the EC sensor allows for rapid determination of the sample temperature and a high-accuracy temperature reading.

Compact size: Measures 125 mm (4.92”) x 185 mm (7.28”) and only 38 mm (1.49”) thick.

Dedicated Calibration Key: A dedicated calibration key allows users to start a one or two-point pH and EC automatic calibration at the touch of a button.

Replaceable pH probe with BNC connection: The PEI resin body is easy to clean and resistant to many aggressive chemicals. The porous PTFE junction is equally resistant to aggressive chemicals. The double junction design presents a silver-free electrolyte solution interacting with the sample, making the electrode less susceptible to clogging and guaranteeing a fast response and stable reading.

Measuring Seawater Salinity

Choice of Units
Seawater salinity units can be chosen through the setup menu.

PPT

Measurements expressed in ppt are based on the Natural Seawater Scale that extends from 0.00 to 80.00 g/L and covers 10 to 31 °C temperature range. It determines the salinity based upon a conductivity ratio of sample to standard seawater at 15 °C and an approximate salinity value of 35 in seawater.

PSU

The practical salinity of seawater relates the ratio of electrical conductivity of a normal seawater sample at 15 °C and 1 atmosphere to a potassium chloride solution (KCl) with a mass of 32.4356 g/Kg water at the same temperature and pressure. Under these conditions the ratio is equal to 1 and S=35. The practical salinity scale may be applied to values 0 through 42.00 psu at temperatures between 0 to 35 °C.

Specific Gravity (S.G.)

Specific Gravity, or relative density, is expressed as the ratio of the density of seawater, at a specific temperature, relative to the density of the same volume of pure water at a specific temperature.

The probes are secured with suction cups to the back of an aquarium (tank) and are suited for continuous measurement of conductivity and associated parameters required in applications such as seawater, saltwater aquariums, or aquaculture.

HI-981520 Marine monitor is supplied with HI-1286 pH electrode; attached EC and Temperature probe; pH7.01 buffer solution 20ml x2; pH 10.01 buffer solution 20mL x 2; 35.00 ppt salinity calibration solution 20mL x 2; electrode cleaning solution 20mL x 2; suction cap with clip x 2; self-adhesive fasteners x 2; 12 Vdc power adapter; quick reference guide with QR code for manual download and instrument quality certificate.

{Technical}

pH
Range 0.0 to 14.0 pH - (depending on electrode capabilities - see individual specifications)
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
Resolution 0.1°C
Accuracy ±0.5°C
Compensation Automatic, 5 to 50°C
Alarm
pH High or Low with enable or disable options
EC High or Low with enable or disable options
Temperature High or Low with enable or disable options
High/Low value with High/Low alarm enabled
Probes pH – HI-1286; EC - attached
Power supply 12 vdc adapter (included) from 115 Vac, and 230 Vac
Environment 0 to 50°C; RH max 95%, non-condensing
Casing IP65 ingress protection
Dimensions 125 x 185 x 38mm
Weight 300g

{Technical Cont.}

HI-1286 pH Electrode
pH range 0 to 13 pH
Junction Type/Flow Rate PTFE
Type of Electrolyte Polymer
Body material PEI
Tip shape Spherical (diameter: 7.5mm)
Matching pin No
Max. Pressure 3.0 bar
Temperature Sensor No
Cable coaxial; 2m
Connector Type BNC
Outer Diameter 12mm
Overall length 160mm
Temperature Operating Range 0 to 80°C
Amplifier No

Fixed Probe EC and Temperature probe specifications
Range 0.0 to 70.0 ppt; 0.0 to 70.0 PSU; 1.000 to 1.041 S.G.
Recommended operating temp 0 to 50°C
Body Polypropylene
Conductivity Sensor Material: ABS; Electrode: Graphite
Temperature Sensor AISI 316 Stainless Steel
Outer Diameter 12.50mm
Overall length 155mm
Maximum pressure 3 bar (44 psi)
Cable type/length Coaxial/2m
Connection Fixed to the monitor

{Delivery Info}
We endeavor to process and despatch your orders as quickly as possible and orders placed before 1pm are normally despatched the same day to arrive next working day (Highlands and Islands deliveries normally take 1-2 days longer).

Your order will be delivered via a 3rd party courier or delivery service on a next working day delivery service. We recommend that you ensure you have received your order prior to booking any installers.

All orders come with full tracking details and you can keep an eye on your delivery by using the tracking button at the top of the website.

Marine Aquarium Monitor for pH, EC, Marine Salinity and Temp (HI-981520)

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