Troubleshooting; Replacement Parts And Accessories - Hach QbD1200 AutoSampler Manual Del Usuario

Troubleshooting

Problem
The instrument does not
operate. The LED status
indicators are off.
The instrument does not
operate. The LED status
indicators are on.
The arm does not operate
correctly.
The sample probe does not pull
up the sample.
The sample probe does not go
through the septum cap of the
vial.
The probe does not easily go
into the mechanical Z-drive.
The sample bottle is lifted up
after the probe retracts.

Replacement parts and accessories

Personal injury hazard. Use of non-approved parts may cause personal injury, damage to the
instrument or equipment malfunction. The replacement parts in this section are approved by the
manufacturer.
Note: Product and Article numbers may vary for some selling regions. Contact the appropriate distributor or refer to
the company website for contact information.
16 English
Possible cause
The power switch is off.
The power cord is disconnected
from the power supply or wall
outlet.
The power cord is damaged.
The power supply is faulty.
The electrical transients on the
power line are too large, which
may disrupt the USB
communication between the
analyzer and the sampler.
The home position of the arm
has damage.
The sample probe is not moving
freely.
The mechanical Z-drive has
damage.
The mechanical Z-drive is not
installed correctly.
The instrument was physically
damaged.
The air flow into vial does not
correctly flow. The sample
tubing is loose.
The stripper plate is not aligned
correctly.
W A R N I N G
Solution
Set the power switch to on.
Connect the power cord.
Replace the power cord.
Contact technical support.
Install any commercially available USB
opto-isolator between the analyzer and the
auto sampler. To repair USB
communications, set the power for both
instruments to off, then to on.
Contact technical support.
Remove the probe to clean and remove
debris. Refer to Replace the sample probe
on page 15.
Replace the sample probe. Refer to
Replace the sample probe
Contact technical support.
Validate the installation. Refer to
mechanical Z-drive on page 9.
Set the instrument power to off, then to on.
If the problem continues, contact technical
support.
Examine the sample probe. Make sure that
the needle is inside the metal sleeve.
Tighten the sample tubing connection.
Adjust the height between the vials in the
sample tray and the platform of the stripper
plate. Refer to Prepare the instrument for
sampling on page 13.
on page 15.
Install the