Water sensors

EC & pH INTERFACE BOX WITH DISPLAY in IP65 Box

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TECHNICAL SPECIFICATIONS

Order number: 600025 / 900029

The EC500PH EC & pH Interface box is a measuring device with display in IP65 Box to be integrated into any METOS sensor chain interface for continuous EC & pH measurements in water. It is compatible with most industry standard EC & pH sensors. The actual reading can be seen on the display. With the built-in calibration mode, all sensor readings can be calibrated and checked from time to time.

Connection possibilities

1 EC Sensor (Part.no. EC501)
1 pH Sensor (Part.no. PH501)

FEATURE	VALUE
General Information	Display shows actual data by pressing the button. It works with iMETOS 3.3 and µMETOS.
Cable length	5 m standard, custom cable lengths available upon request

PESSL INSTRUMENTS ELECTRICAL CONDUCTIVITY

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TECHNICAL SPECIFICATIONS

Order number: 600145 / 900032

he conductivity sensor provides a complete self contained measurement. The sensor utilizes a reliable and robust sensor for conductivity measurement and a thermistor for temperature measurement. The sensor is ideal for hydrographical and environmental water monitoring, in agriculture and industrial applications. The durable design ensures suitability for the harshest environment applications.

Necessary Interface to connect this sensor with METOS: 600025 / 900029 Interface box with display.

FEATURE	VALUE
Range	0.1 µS/m – 1000 mS/cm
Resolution	0.1 µS/cm
Temperature compensation	Automatic
Probe Material	PP
Probe diameter	12 mm
Min. immersion	40 mm

PESSL INSTRUMENTS pH sensor

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TECHNICAL SPECIFICATIONS

Order number: 600144 / 900030

The pH sensor is a reliable and cost-effective sensor for measuring the pH value of various aqueous solutions. The pH scale covers values between 0 and 14.

Acids have pH values between 0 and 6; caustic solutions have pH values between 8 and 14. Value 7 is neutral.

Necessary Interface to connect this sensor with METOS: 600025 / 900029 Interface box with display.

FEATURE	VALUE
Range	pH 0.00 to 14.00
Resolution	0.001 pH
Accuracy	±2% F.S.
Temperature deviation	3 % (range 5 °C to 30 °C)
pH probe	Standard up to 0.1 bar (other types on request), 3 m cable, 2-ringflow-through (please specify type of application)
pH calibration	2-point with automatic buffer (recognition pH 4.0 and pH 7.0)
Probe material	Glass
Probe diameter	12 mm
Minimum immersion	35 mm
Operating temperature range	15°C – 60°C
Response time	≤ 90 s

PESSL INSTRUMENTS PRESSURE SWITCH

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TECHNICAL SPECIFICATIONS

Order number: 600168 / 900198

Simple and robust design makes pressure switch suitable for use with compressed air, hydraulic oil, oil emulsions and water. Detection threshold is 0.5 bar (7.25 psi) and switch off is at 0.25 bar (3.62 psi) (other values on demand). The main purpose of this sensor is to control/check the performance of the irrigation system in different types of applications (resistance to high pressure makes it usable also for frost protection system).

FEATURE	VALUE
Material	Zinc-plated steel (G 1/4″)
Switching function	Open contact, closed contact, changeover
Media	Water, compressed air, hydraulic oil, oil emulsion
Maximum medium temperature	+85 °C
Adjustment ranges	1 to 10 bar (1.4-14 psi), 0-1 bar
Switching frequency	max. 200 /min
Switching pressure difference	10 to 15 %
Switching voltage	Open contact/closed contact 42V max. 2A; Changeover 250 V max. 2A

PESSL INSTRUMENTS WATER COUNTER INTERFACE

SW1000 pulse counter (Reed/Rain input);

Note: The sensor can be connected to REED and RAIN
input with an appropriate input reconfiguration.

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TECHNICAL SPECIFICATIONS

Order number: 600155

These interfaces support most of the water meters used in irrigation with a pulse output.

SECTORS: Irrigation management, irrigation consulting, smart irrigation, irrigation
tractability and bookkeeping, alarms, and supervision. Used widely in open field crops, hydroponics, and green house.

FEATURE	VALUE
Resolution	0.1 / 1 / 10 / 100 / 1000 liters per pulse

PESSL INSTRUMENTS PIPE PRESSURE (WPS)

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TECHNICAL SPECIFICATIONS

Order number: 600154 / 900204

This sensor enables continuous monitoring of the pressure in irrigation pipes (main pipe or sector pipes) and it measures up to 50 bar, so it can be used in all types of irrigation systems (drip irrigation, sprinkler, hydroponics …). Technical specification of the full scale and resolution can be changed in the benefit of the user.

SECTORS: Irrigation monitoring and supervision, identification of pressure loss in the installation.

FEATURE	VALUE
Range	0 to 500 m of water column
Resolution	10 mbar
Accuracy	0.3 %
Operating temperature range	0 °C to 50 °C
Storage temperature range	-20 °C to 80 °C
Weight	300 g (including cable)
Housing	POM
Diaphragm	Ceramic
Cable sheath	Shielded PVC
Output signal	Voltage
Support	µMETOS Sens 1 and Sens 2
Dimensions gauge shaft	90 x 20 mm (height x diameter)

Pessl Instruments Water Level Sensor

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TECHNICAL SPECIFICATIONS

Order number: 600026 / 900201, 600153

The Water level sensor is an accurate and cost effective submersible water level sensor that can be connected to METOS stations with the precision of 3 mm within the measurement ranges. Sensor has an integrated barometric sensor module to increase precision. Pressure (Measuring) ranges: 0 mWC up to 5 mWC (other distances on request). Special cable is also available.

SECTORS: Depth or level measurement in wells and open waters (rivers and lakes)
and ground water level measurement.

FEATURE	VALUE
Accuracy according to IEC 60770	Limit point adjustment (nonlinearity, hysteresis and repeatability) within ±3 % within the measurement ranges
Response time	~ 5 ms
Range	0 to 10 m of water column (other on request
Resolution	1 mm
Accuracy	0.5 % of maximum water level
Operating temperature range	0 °C to 50 °C
Storage temperature range	-20 °C to 80 °C
Weight	300 g (cable not included)
Housing	Stainless steel 1.4301
Diaphragm	Ceramic
Seals	FKM
Cable sheath	Shielded PVC
Output signal	Analog voltage
Support	PI-bus only at the end of the chain
Dimensions gauge shaft	90 x 38 mm (height x diameter)