Yosemitech Y514 Wipered Chlorophyll Sensor module

Sensor Datasheet

• Y514 Manual
• Y515 Manual
• Modbus Instructions

Sensor Constructor

Example Code

The Yosemitech Y514 chlorophyll sensor is used in the menu a la carte example.

#include <sensors/YosemitechY514.h>

// NOTE: Extra hardware and software serial ports are created in the "Settings
// for Additional Serial Ports" section

// NOTE: Use -1 for any pins that don't apply or aren't being used.
byte          y514ModbusAddress  = 0x14;  // The modbus address of the Y514
const int8_t  y514AdapterPower   = sensorPowerPin;  // RS485 adapter power pin
const int8_t  y514SensorPower    = A3;              // Sensor power pin
const int8_t  y514EnablePin      = -1;              // Adapter RE/DE pin
const uint8_t y514NumberReadings = 5;
// The manufacturer recommends averaging 10 readings, but we take 5 to minimize
// power consumption

// Create a Y514 chlorophyll sensor object
YosemitechY514 y514(y514ModbusAddress, modbusSerial, y514AdapterPower,
                    y514SensorPower, y514EnablePin, y514NumberReadings);

// Create chlorophyll concentration and temperature variable pointers for the
// Y514
Variable* y514Chloro = new YosemitechY514_Chlorophyll(
    &y514, "12345678-abcd-1234-ef00-1234567890ab");
Variable* y514Temp =
    new YosemitechY514_Temp(&y514, "12345678-abcd-1234-ef00-1234567890ab");

Classes

class YosemitechY514

The Sensor sub-class for the Yosemitech Y514 sensor.

class YosemitechY514_Chlorophyll

The Variable sub-class used for the chlorophyll concentration output from a Yosemitech Y514-A chlorophyll sensor with wiper.

class YosemitechY514_Temp

The Variable sub-class used for the temperature output from a Yosemitech Y514-A chlorophyll sensor with wiper.

Defines

#define Y514_NUM_VARIABLES = 2

Sensor::_numReturnedValues; the Y514 can report 2 values.

#define Y514_INC_CALC_VARIABLES = 0

Sensor::_incCalcValues; we don't calculate any additional values.

Sensor Timing

The sensor timing for a Yosemitch Y514

#define Y514_WARM_UP_TIME_MS = 1300

Sensor::_warmUpTime_ms; time before sensor responds after power - 1.3 seconds (1300ms).

#define Y514_STABILIZATION_TIME_MS = 8000

Sensor::_stabilizationTime_ms; time between "StartMeasurement" command and stable reading - 8sec (8000ms).

#define Y514_MEASUREMENT_TIME_MS = 2000

Sensor::_measurementTime_ms; the Y514 takes ~2000ms to complete a measurement.

Chlorophyll Concentration

The chlorophyll concentration variable from a Yosemitch Y514

• Range is 0 to 400 µg/L or 0 to 100 RFU
• Accuracy is ± 1 %

#define Y514_CHLORO_RESOLUTION = 1

Decimals places in string representation; chlorophyll concentration should have 1 - resolution is 0.1 µg/L / 0.1 RFU.

#define Y514_CHLORO_VAR_NUM = 0

Sensor variable number; chlorophyll concentration is stored in sensorValues[0].

#define Y514_CHLORO_VAR_NAME = "chlorophyllFluorescence"

Variable name in ODM2 controlled vocabulary; "chlorophyllFluorescence".

#define Y514_CHLORO_UNIT_NAME = "microgramPerLiter"

Variable unit name in ODM2 controlled vocabulary; "microgramPerLiter" (µg/L)

#define Y514_CHLORO_DEFAULT_CODE = "Y514Chloro"

Default variable short code; "Y514Chloro".

Temperature

The temperature variable from a Yosemitch Y514

• Range is 0°C to + 50°C
• Accuracy is ± 0.2°C

#define Y514_TEMP_RESOLUTION = 1

Decimals places in string representation; temperature should have 1 - resolution is 0.1°C.

#define Y514_TEMP_VAR_NUM = 1

Sensor variable number; temperature is stored in sensorValues[1].

#define Y514_TEMP_VAR_NAME = "temperature"

Variable name in ODM2 controlled vocabulary; "temperature".

#define Y514_TEMP_UNIT_NAME = "degreeCelsius"

Variable unit name in ODM2 controlled vocabulary; "degreeCelsius" (°C)

#define Y514_TEMP_DEFAULT_CODE = "Y514Temp"

Default variable short code; "Y514Temp".