OTT Hydrolab DS5 User Manual (English)

Questions and Answers:

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Heather WallerAug 16, 2025
What to do if PC or communication software of OTT Hydrolab DS5 is not functioning correctly?
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  Thomas JensenAug 16, 2025
  If your PC or terminal emulation or communication software isn't working right, try these steps: * Start the communications software before connecting the instrument. * Make sure the PC is on and the communication software is running. * Check that you've selected the correct communication port (COM 1, 2, 3, 4). * Confirm the terminal is set to ANSI terminal emulation, and the baud rate is correct (19200, 8, N, 1). * If using a long cable (100 meters or more) with the Surveyor, set the terminal and Sonde baud rates to 9600.
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Christine VanceAug 19, 2025
What to do if communication is not established after several attempts with OTT Hydrolab DS5?
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  Kevin JohnsonAug 19, 2025
  If you're having trouble establishing communication, here are a few things to check: * First, make sure the instrument is powered on and working. * Then, check the power cables and connections to ensure they are properly connected to the wall outlet or external battery, if you're using one. * Also, verify that the input voltage to the multiprobe is between 7V and 18V. * If your multiprobe has an internal battery pack, check the batteries' polarity and voltages.
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Jeffrey FordAug 22, 2025
Why OTT Hydrolab DS5 gives wrong Conductivity, Temperature, and/or Depth readings?
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  Ann FloresAug 22, 2025
  Incorrect readings for Conductivity, Temperature, or Depth can often be resolved by ensuring that the sensors are properly maintained and calibrated. Also, verify that the units displayed are accurate (e.g., for Depth: meters, feet, or psi).
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Lauren PhillipsAug 26, 2025
What to do if power cables and connections of OTT Hydrolab DS5 have issues?
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  Andre AndersenAug 26, 2025
  If you're experiencing power cable and connection issues, verify that the PC and multiprobe are properly connected to the wall power outlet or an external battery, if being used. Also, check that the input voltage to the multiprobe is between 10 and 15 volts. If applicable, make sure the battery pack is correctly installed and verify the battery polarity and voltages.
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Carla MorganAug 28, 2025
What to do if OTT Hydrolab DS5 gives incorrect D.O. readings?
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  Barbara BallardAug 28, 2025
  If you're getting incorrect D.O. readings, make sure the D.O. sensor has been properly maintained and calibrated.
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Gerald WaltersAug 31, 2025
What to do if Hydras 3LT does not automatically detect the Sonde when launched?
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  Michael PriceAug 31, 2025
  If the Hydras 3LT isn't automatically detecting the Sonde when launched, press the RE-SCAN FOR SONDES button.
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sonyamarshallSep 3, 2025
How to configure Hydras 3 LT Communication Settings for OTT Hydrolab DS5?
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  Cynthia GuerreroSep 3, 2025
  To configure Hydras 3 LT Communication Settings, select File>Options from the Hydras 3 LT Connection Screen. If you know the Sondes/PC baud rate and COM port, disable the COM Port and baud rate auto scans and set Hydras3LT to use the known values.
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Kristy WatsonSep 6, 2025
What to do if OTT Hydrolab DS5 Transmitter has a connection timeout issue?
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  mullinskatherineSep 6, 2025
  If you're experiencing a connection timeout issue, the connection timeout may be extended from 10 to 15 seconds, which will allow time for additional retries.
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Angela PrattSep 9, 2025
What to do if there are internal components issue with OTT Transmitter?
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  Sophia FreemanSep 9, 2025
  If you suspect an issue with the internal components, make sure all internal connections are securely seated. Check for any water inside the unit; if damp, dry it thoroughly with a lint-free cloth or let it air dry in a dry room overnight. Identify and repair the source of the leak. If these steps don't solve the problem, try substituting other instruments, cables, and terminals to find the failing component.
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Craig DavisSep 12, 2025
Why OTT Hydrolab DS5 gives Low D.O. readings or extreme pH/Redox levels?
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  Katherine FisherSep 12, 2025
  If you're getting low D.O. readings or extreme pH/Redox levels, check the value of the sample solution and ensure the sensors are properly maintained.

OTT Hydrolab DS5 Specifications

General

Protection Rating	IP68
Measurement Parameters	Temperature, Conductivity
Measurement Range (Temperature)	-5 to +50 °C
Measurement Range (Conductivity)	0 – 200 mS/cm
Accuracy (Temperature)	±0.1 °C
Output	Digital
Material	Stainless steel