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In-line Refractometer
Model : GND15（high temperature Application）
Thank you for purchasing an in-line refractometer. This instruction manual is designed to guide you to understand
the functions and characteristics of the sensor. Before using the instrument, please read this manual carefully to
ensure safe and correct use. Please keep this manual for future reference
Instruction manual
ZHYQ Sensor&Control Page 1 of 15
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Summary of Contents for ZHYQ GND15
- Page 1 In-line Refractometer Model : GND15（high temperature Application） Instruction manual Thank you for purchasing an in-line refractometer. This instruction manual is designed to guide you to understand the functions and characteristics of the sensor. Before using the instrument, please read this manual carefully to ensure safe and correct use.
- Page 2 Description The In-line Brix-Monitor GND15 is a refractometer that detects the Refractive Index of a sample and outputs the Brix(%) value on the display , can also transmit measured data to external devices via 4 to 20mA or RS485 .
- Page 3 In-line Refractometer Model : GND15（high temperature Application） Working Principle If the Refractive Index of air under atmospheric pressure is 1, then when light enters medium χ, the ratio of the sine of the incident angle α measured against the phase boundary to the sine of the refracting angle β...
- Page 4 In-line Refractometer Model : GND15（high temperature Application） Features Automatic temperature compensation Lightweight , compact and easy to install on site . LED display , Easy to operate, easy to connect with other devices for automatic control Inline real-time monitoring and control of liquid substance concentration in various industries...
- Page 5 In-line Refractometer Model : GND15（high temperature Application） Specification Model: GND15 Measure Parameters: Refractive index(nD), Brix (%), Temperature (° C) Measure range: 0-15% , 0-33% , 0-53% , 93% Brix: 0.1% ( Range for 15% , 33% & 53% ) Min Resolution Ratio: Brix: 0.5% ( Range for 93% )
- Page 6 In-line Refractometer Model : GND15（high temperature Application） Dimension ZHYQ Sensor&Control Page 6 of 15...
- Page 7 4-pins plug ⑥ : for output ( 4-20mA or 4-20mA + RS485 ) , connect to a recorder. Note: our GND15 as no power switch. Turn off the power (DC24V) prior to connecting cables to the individual units. When power is supplied to the GND15 , The Brix(%) value will be displayed when sample flows onto the prism surface, the measurement value display illuminates , the unit work commences.
- Page 8 In-line Refractometer Model : GND15（high temperature Application） Names and Functions of keys ① Measurement brix value display : Digitally displays the measurement value [Brix(%)], setting mode, and other setting values. ② Measurement value display : Digital switch displays the measure value [ nD and T] ③...
- Page 9 In-line Refractometer Model : GND15（high temperature Application） Button definition and operation In the measurement interface, press Menu to enter the first level menu, and ESC to return to the measurement interface. Under the first level menu, you can use the up and down keys to select the corresponding options. When you press Menu, you will enter the second level menu.
- Page 10 Step ③ : Calibrate 0 with distilled water ( The factory Settings of the product have been validated ) Step ④ : Install well our GND15 on the location that needs to be measure . Step ⑤ : When the sample flows into the prism surface Step ⑥: measurement starts , brix (%) value and current temperature T will be displayed .
- Page 11 In-line Refractometer Model : GND15（high temperature Application） Mounting procedure: ① Install the GND15 so that the prism surface is at a right angle to the ground. ② Attach the flow pipe to the GND15 with O-ring (accessory) inserted between them, and fasten them together with the clamp band (accessory).
- Page 12 In-line Refractometer Model : GND15（high temperature Application） Mounting Precautions ◆ The installation form of this product is a hoop quick-installation type; ◆ When installing, please pay special attention not to scratch the prism and probe; ◆ When installing, please pay special attention to avoid strong impact on the instrument;...
- Page 13 ◆ Cleaning the prism with an abrasive material could cause scratches on the prism which could lead to erroneous measurements. ◆ After cleaning is complete, re-attach the GND15 unit to the sample inlet unit, piping or tank. The procedure is described on the instruction manual.
- Page 14 In-line Refractometer Model : GND15（high temperature Application） Environmental conditions: ◆ If the unit begins to overheat, smoke, or emit an abnormal smell , immediately turn off the power and unplug the unit from the power supply. ◆ DO NOT measure any sample that can damage the prism or the sample inlet unit , sample temperature should be kept between 5℃...
- Page 15 In-line Refractometer Model : GND15（high temperature Application） Plug wiring definition: 2-pins plug for unit power Pin1: 24V Power+ (V+): Red (24VDC) Pin 2: 24V Power- (V-): Black Pin 1: 4-20mA+ (I+): Red 4-pins plug for output Pin 2: 4-20mA- (I-) , Black...
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