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AGROWtEK
Technology to Help You Grow
Hydroponics Sensor Transmitter & Data Logger
Contents
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Temperature, pH, EC (+ORP/DO)
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© Agrowtek Inc. | www.agrowtek.com
INSTRUCTION MANUAL
SXH/SXH+
Shown with optional sensor probes
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Table of Contents
Related Manuals for Agrowtek SXH
Summary of Contents for Agrowtek SXH
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Page 1: Table Of Contents
Clear Calibration MODBUS Register Map Temperature Calibration Maintenance pH Calibration Conductivity Calibration Probe Cleaning O.R.P. Calibration pH Probe Reconditioning D.O. Calibration Technical Information D.O. Saturation Chart Specifications Advanced Calibration Storage and Disposal Analog Output Calibration Warranty © Agrowtek Inc. | www.agrowtek.com... -
Page 2: Dimensions
Color LCD Display MODBUS MADE IN Button Interface U.S.A. (optional) TEMPERATURE CONDUCTIVITY O.R.P. / D.O. © Arowtek Inc. | www.agrowtek.com o.r.p./d.o. Temp Probe | EC Probe Probe Probe red blk wht | clr red blk Temperature & Conductivity BNC pH Probe Probes (optional) BNC ORP/DO Probe Do NOT connect the GrowNET port to Ethernet networks. -
Page 3: Ph & Orp Probe Preparation
Installation/Operation Angle pH & ORP sensor probes must be installed in an above-horizontal position with the probe tip facing downward to prevent the air bubble from entering the the bulb area. 10° min. © Agrowtek Inc. | www.agrowtek.com... -
Page 4: Mounting The Transmitter
Temp Probe | EC Probe Probe Probe red blk wht | clr red blk pH & ORP probes must remain wet to avoid damage. Do not allow probe tips to dry. © Agrowtek Inc. | www.agrowtek.com... -
Page 5: Connection To Adi Pump
A direct-link connection between a SXHM sensor and ADi pump requires Agrowtek’s cross-over adapter. IMPORTANT! ONLY use cross-over adapters provided by Agrowtek. Do not use other cross-over adapters or cross-over cables unless they are constructed exactly as diagramed on the cross-over diagram. Incorrect cross-over adapters or cables can cause damage to the equipment. -
Page 6: Lcd Menu Operation Instructions
U.S.A. facility control systems, or directly to Agrowtek’s AgrowDose pumps for TEMPERATURE CONDUCTIVITY O.R.P. / D.O. automatic nutrient and pH control. © Arowtek Inc. | www.agrowtek.com o.r.p./d.o. Temp Probe | EC Probe 72.0 °F Probe Probe red blk wht | clr red blk 6.10... -
Page 7: Main Menu
3. Select the setting 1. Select ALARMS 2. Select a sensor to 4. Adjust to the desired to adjust. from the main menu. configure set points. value. Hold UP or DWN to jog the value. © Agrowtek Inc. | www.agrowtek.com... -
Page 8: Alarm Buzzer
Calibration can be restored to factory defaults by selecting CLEAR ALL. SETUP DWN ENT PUMPS CALIBRATION DWN ENT BACK RESTORE TO TEMPERATURE FACTORY CALIBRATION? COND CLEAR ALL DWN ENT 1. Select CLEAR ALL 2. Press YES to restore from the calibration factory calibration. menu. © Agrowtek Inc. | www.agrowtek.com... -
Page 9: Temperature Calibration
PH4.01 SOLUTION. EXIT EXIT NEXT 5. When the reading is stable, press DONE 4. Clean the probes with DI/RO pH 4.01 Calibra- to calibrate pH 4.01 and finish calibration. and change calibration solution. tion Solution © Agrowtek Inc. | www.agrowtek.com... -
Page 10: Conductivity Calibration
DWN ENT EXIT NEXT EXIT 3. When the reading is 1. Select CALIBRATE 2. Follow the instruc- stable, press DONE to from the conductivity tions then press NEXT complete the calibration. calibration menu. to continue. © Agrowtek Inc. | www.agrowtek.com... -
Page 11: Calibration
5. When the reading is 4. Follow the instruc- 6. Adjust the saturation stable, press NEXT to tions then press NEXT value according to the chart adjust the saturation to continue. on the following page. calibration. © Agrowtek Inc. | www.agrowtek.com... -
Page 12: D.o. Saturation Chart
Formula from Grasshoff, K., et al. (1999), and is generally accurate to 0.1 ppm to empirical studies. Saturation values are for 760 mm mercury (29.92"). During a high pressure system, saturation values may be 0.4 ppm higher. During a low pressure system, saturation may be 0.5 ppm lower. © Agrowtek Inc. | www.agrowtek.com... -
Page 13: Advanced Calibration
This calibration procedure is optional and only for use with custom PLC appli- cations. DWN ENT 1. Observe the PLC’s input or data readings. 2. Increase or decrease the offset value to incremenetally adjust the current output until the values match. © Agrowtek Inc. | www.agrowtek.com... -
Page 14: Setup Menu
Temperature and Conductivity may be displayed NEXT TIME/DATE TEMPERATURE DWN ENT in alternate units. UNITS DWN ENT LOG INTERVAL Select a sensor value to change the default display NEXT and working units. DWN ENT DWN ENT © Agrowtek Inc. | www.agrowtek.com... -
Page 15: Logging Interval
.csv file with the LX1 USB AgrowLINK and free software. 1. Select LOG INTERVAL 2. Adjust the value then select BACK. from the setup menu. Note: 60 second intervals = 15 days of data storage. © Agrowtek Inc. | www.agrowtek.com... -
Page 16: Comm Mode
BACK BACK Agrowtek’s control systems, or can be configured DWN ENT COMM manually for MODBUS applications via the menu. DEVICE ADD NOTE: All of Agrowtek’s devices use address 254 as 0 Addr MFG INFO a broadcast address. BACKLIGHT °F SETUP... -
Page 17: Display Back Light Timer
| clr red blk 15-24 Vdc • More LX1 provides power from USB to operate SXH/SXH+ Standard FTDI drivers automatically install in Windows. GrowNET protocol available for custom software ap- plications; sample C# code available. See software manual for more information. -
Page 18: Connection To Modbus Rtu
GrowNET 8-Port Hub POWER 12-24Vdc MADE IN © Agrowtek Inc. | www.agrowtek.com U.S.A. lays directly over the GrowNET cable. A DC jack on the hub provides 24Vdc power to the ports from the included 120V wall power supply. Serial Speed & Format The default serial data format for the LX2 ModLINK interface is: 19,200 baud, 8-N-1. -
Page 19: Supported Commands
To set the conductivity zero calibration, write the value “0. ” Span Calibration Span, or slope calibration, corrects the slop of the sensor reading at a second point, away from the zero cali- bration. Operations performed using the span register are: © Agrowtek Inc. | www.agrowtek.com... -
Page 20: Modbus Register Map
16 bit 41301 Sensor 2 Analog Cal Calibration Input Signed Int 16 bit 41302 Sensor 3 Analog Cal Calibration Input Signed Int 16 bit 41303 Sensor 4 Analog Cal Calibration Input Signed Int 16 bit 41304 © Agrowtek Inc. | www.agrowtek.com... -
Page 21: Maintenance
Immerse electrode tip in 5% HF for 10-15 seconds, rinse well in tap water, quickly rinse in 5N HCl, rinse well in tap water and recheck performance. If performance has not been restored, it is time to get a new probe. © Agrowtek Inc. | www.agrowtek.com... -
Page 22: Technical Information
The products which have been claimed and comply with the aforementioned restrictions shall be replaced or repaired at the sole discretion of the Agrowtek Inc. at no charge. This warranty is provided in lieu of all other warranty provisions, express or implied. It is including but not limited to any implied warranty of fitness or merchantability for a particular purpose and is limited to the Warranty Period.
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