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Operating Instructions

Rain Gauge

VAN WALT

Monitoring your needs

The e-SENSE SMS modem (field modem) and e-SENSE direct do support alarm functionality. When

an SMS modem detects an active alarm status for a sensor, e-SENSE direct can transmit an alarm

message via the SMS modem direct to a mobile telephone number.

The values of alarm and hysteresis must be within the interval constituted by on the one side the

Reference and on the other side by the sum of Reference and Range.

In formula: Ref. <= Alarm <= (Ref. + Range)

and Ref <= Hysteresis <= (Ref. + Range)

The user must always (also when no telemetry is used) fill in the values for alarm high, hysteresis

high, alarm low and hysteresis low.

The integrator function can be used to determine daily, weekly or monthly totals on the basis of

rain intensity measurements. If it is necessary to start obtaining measurement totals, the starting

value of the integrator can be set at zero, which can be done by adjusting the datalogger’s

Master setting to the value ‘-0’. This is called the ‘resetting’ of the integrator. In this way, the rain

intensity measurements can be used to determine daily, weekly or monthly totals on the basis of

daily measurement samples.

Applications

The following e+ sensors are currently available:

• Rain fall (intensity and total)

• Soil moisture (volume fraction, conductivity and temperature)

In due course e+ sensors will also be available for the following areas of application:

-Wind (direction and speed)

-Soil erosion

-Atmospheric conditions (moisture and temperature) -Evaporation

-Atmospheric

pressure

-Tension

-Temperature

-Pulse

-Radiation (pyrano and albedo)

-Current

-Flumes (flow rate)

-Conductivity

-Infiltration

-Serial

The following Divers are currently available for the following applications:

-Diver (water level and temperature)

-CTD-Diver (water level, temperature and

conductivity)

-BaroDiver (atmospheric pressure and temperature)

-OTD-Diver (water level, temperature and

dissolved

oxygen)

Содержание Rain Gauge

Страница 1: ...43V3_02 06 2020_TD Contents Introduction 1 Description 1 1 Package contents 1 2 General 1 3 Datalogger 1 4 Measuring section 2 Technical specifications 3 Taking into use 3 1 Settings 3 2 Connection 3...

Страница 2: ...scription 1 1 Package contents 0 e RAIN sensor which consists of a datalogger 11 41 21 01 rain gauge 11 41 21 02 LDM e software 11 11 14 and battery set e logger 11 41 90 01 0 Available separately Sta...

Страница 3: ...e shipping to prevent damage in transit To release the mechanism remove the funnel from its base by unscrewing the three thumbscrews Remove the piece of foam from under the bucket mechanism This foam...

Страница 4: ...hosen times Resolution 0 0033 15 bit data storage Clock accuracy 1 sec per day Alarm 0 100 of the measuring range Battery status 0 to 100 Temperature operating range 20 70 C Relative humidity range 0...

Страница 5: ...Application Management tab and enter the following settings options Selected port should show the number of the port to which the readout unit is connected User type in this case Basic is sufficient o...

Страница 6: ...o a permanently installed connecting cable The IrDa interface has an optical unit that makes it possible for the datalogger to be read from a distance of 1 2 metres It is fitted with a 9 pole sub D co...

Страница 7: ...designed to carry out remote wireless transmission of the measurement data from the e sensors by means of an SMS modem to a central Internet database This does away with having to read data in the fie...

Страница 8: ...d First of all the stand for the meter must be placed in a stable and horizontal position This will require drilling a hole in the soil in which to place the tube of the stand After putting the tube i...

Страница 9: ...ation cable Protective cap optional e logger Mounting nut with vandalism proof bolts Delivered with measuring station 7 Remove the protective cap with eye and the O ring of the e logger 8 Remove the n...

Страница 10: ...continue installation for IRDA readout step 11 till 14 Communication cable step 15 till 18 11 Screw the logger nut on the e logger or use the optional protective cap and turn it hand tight It is also...

Страница 11: ...is curved along the e logger Sensor cable 14 Push the e logger in the square tube just that far that the tap holes of the mounting nut correspond with the first pair of holes in the square tube Screw...

Страница 12: ...er and screw it hand tight Sensor connector Ring nut e logger 17 Shove the e logger in the square tube of the measuring unit the sensor cable is curved along the e logger Sensor cable 14 Push the e lo...

Страница 13: ...step 19 15 Screw the opto connector of the communication cable on the e logger the postion pen of the opto connector fits in the free space of the e logger Position pen 16 Mount the sensor connector...

Страница 14: ...needs 18 Push the e logger in the square tube just that far that the tap holes of the mounting nut correspond with the second pair of holes in the square tube Screw in both vandalism proof bolts Vanda...

Страница 15: ...on starting if this box has been checked the RTC clock of the datalogger is synchronized with the system clock of the computer at start up Stop clicking on this button will stop the datalogger immedi...

Страница 16: ...the measurement values exceed one of the alarm boundaries the alarm status is activated The alarm status can be reactivated only once the hysteresis limits are reached The limit values can be set in...

Страница 17: ...it is necessary to start obtaining measurement totals the starting value of the integrator can be set at zero which can be done by adjusting the datalogger s Master setting to the value 0 This is cal...

Страница 18: ...if the correct type of connection cable has been used or whether the cable is damaged If the measures above do not solve the problem remove the datalogger and check its operation with a readout unit...

Страница 19: ...If many alarm messages are received repeatedly choose the hysteresis values in such a way that the difference with the alarm values is increased If the problem persists check the course of the measur...

Страница 20: ...the instrument to which a static calibration is performed Subsequently the new calibration factor of the instrument is determined via a dynamic calibration measurement If so desired the Range setting...

Страница 21: ...ervoir should take at least one hour Use the datalogger to record the number of contacts The number of contacts should roughly be 98 whereby the actual number of contacts determines the calibration fa...

Страница 22: ...the outside of the e logger dry and clean 3 Remove the O ring and the nut 4 Slip the support ring battery cover and both thin O rings of the e logger 5 Remove the desiccant pack 6 Remove the battery b...

Страница 23: ...O ring with vaseline The O ring must be covered completely with vaseline O ring seat Vaseline O ring 1 for O ring 1 12 Place the desiccant pack H2 76 41 0 13 Slide the battery cover on the e logger No...

Страница 24: ...6 808 www vanwalt com Rain Gauge 24 VAN WALT Monitoring your needs 16 Place the support ring and screw the nut on the e logger place O ring 3 17 Clean the outside of the e logger remove the superfluou...

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