Problems And Solutions - Van Walt Rain Gauge Operating Instructions Manual

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VAN WALT

Monitoring your needs

Problems and solutions

This chapter provides useful tips and information if problems occur with the performance of the

datalogger or the rain gauge during or after they have been put into operation. The following tips

can help you to ascertain what is wrong and possibly correct the fault yourself.

No measurements appear after starting up the datalogger and putting it into service.

• If the datalogger is used in stand-alone capacity:

• Check if the correct type of connection cable has been used or if the cable is damaged,

whether the infrared eyes of the datalogger are clean and the readout unit is connected

correctly. Next check in LDM e+ under the Application management tab -> Program settings if

the correct COM-port has been selected.

• If the datalogger is connected to an e-SENSE SMS modem (field modem) and if e-SENSE direct

or the e-SENSE data site is used:

• If the fault occurs in all dataloggers used, there is probably a fault in e SENSE direct or the

e-SENSE data site. Consult the instructions for e-SENSE direct or the e-SENSE data site. If the fault

only occurs in dataloggers that are connected to a specific SMS modem, there is probably a

fault in that SMS modem. Consult the user manual of the SMS modem. If the fault only occurs

in one specific datalogger, check 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 and a (laptop) computer with LDM e+ installed on it. If communication

with the datalogger is not possible in LDM e+, replace the battery as described in chapter 7,

"Maintenance". Contact your supplier if the fault cannot be corrected with any of these measures.

Communication with the datalogger is correct, but no measurements appear.

• If the datalogger is used a stand-alone capacity:

• In LDM e+, check the settings for Sample speed and Future start and also check the system time

of the (laptop) computer under Settings, Configuration, Date and Time. Synchronize the RTC

when starting up the datalogger. Depending on the set Sample speed and possibly a set Future

start, measurements should now become available at a certain point in time.

• If e-SENSE direct or the e-SENSE data site is used:

• Check the settings for Sample speed, Send interval, Send start and Channel is activated. The

setting for Sample speed should be lower than the setting for Send interval, while Channel

is activated must be active. Depending on the value for Send interval and Send start,

measurements should become available at a certain point in time. If this is not the case, check

1. The signal strength level of the e-SENSE SMS modem (field modem), if applicable. Please refer to

the user manual of the SMS modem for checking the field strength level of the SMS modem.

2. The signal strength level of the computer GSM modem, if applicable. The field strength level is

shown in the status bar of e-SENSE direct.

Operating Instructions

Rain Gauge

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