Hach Lange CL17 User Manual (English)

Questions and Answers:

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Julie BeckerAug 1, 2025
What to do if Hach Measuring Instruments shows zero reading?
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  andrew56Aug 1, 2025
  If your Hach Measuring Instruments displays a zero reading, consider these possible causes: * No stir bar: Place a stir bar into the colorimeter. * Pinch plate thumb screws not fully tightened: Tighten the thumb screws. * Sample not flowing: Check the sample conditioning and other sample supply lines. * More than one stir bar: Remove the plug from the top of the colorimeter and use a flashlight to illuminate the inside of the cell. Look into the colorimeter to determine if more than one stir bar is inside. Remove excess stir bars.
B
Benjamin LaneAug 7, 2025
Why Hach Measuring Instruments display does not light and the pump motor isn't working?
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  pricejermaineAug 7, 2025
  If the display doesn't light up and the pump motor isn't operating, it could be due to no operating power. Check the power switch position, fuses, and power cord connections.
D
Danielle GardnerAug 11, 2025
What to do if Hach Lange CL17 Measuring Instruments display lights but the pump motor doesn't operate?
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  Jessica ThomasAug 11, 2025
  If the display lights up but the pump motor doesn't operate, consider the following: 1. Low operating power: Verify the line voltage is within specifications. 2. Incorrect line voltage selector switch setting: Check the line voltage selector switch position. 3. Motor cable not connected: Check the motor cable connection to the circuit board. 4. Defective motor: Replace the motor.
J
John LaneAug 16, 2025
How to fix sample overflowing from the colorimeter in Hach Lange CL17?
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  April JacobsAug 17, 2025
  If the sample is overflowing from the colorimeter, the drain line might be clogged, or there could be an air lock in the drain line. Clean the drain line and/or eliminate any air locks from the drain plumbing.
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Denise NelsonAug 21, 2025
Why Hach Measuring Instruments display does not light but the pump motor operates?
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  Danielle MckinneyAug 21, 2025
  If the display doesn't light up but the pump motor operates, there may be a problem with the power supply. In this case, replace the main circuit board.
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Darlene ThomasAug 27, 2025
Why is excessive moisture condensing on the Hach Measuring Instruments colorimeter?
- C
  Charles ParsonsAug 27, 2025
  Excessive moisture condensing on the colorimeter is likely due to a large temperature difference between the sample and the analyzer environment. When practical, allow the sample temperature to warm to room temperature before it enters the analyzer.

Hach Lange CL17 Specifications

General

Measurement Principle	Colorimetric
Resolution	0.01 mg/L
Wavelength	515 nm
Power Supply	100 - 240 VAC, 50/60 Hz
Weight	5.5 kg
Parameter	Chlorine
Detection Limit	0.02 mg/L
Reagent Type	DPD
Sample Temperature	5 - 40 °C
Operating Temperature	5 - 40 °C
Output	4-20 mA