Heyl Testomat 808 - Checklist Testomat 808 2019

45
Checkliste Testomat
®
808 2019
Dear customers and service technicians,
This check list cannot replace your expertise or extensive experience in fault resolution. It is intended to support fast and
systematic error diagnosis and error documentation. This list does not claim to be complete. We are therefore always grateful
for any advice and information you may be able to provide. General user instructions can be found on the rear of this check list.
The Instrument Manufacturer
Block 1 / Plant and instrument data
Testomat
®
808
Instrument type
Instrument
number
Indicator type
Software status
Block 2 / Error message and error history Please mark appropriately (X)
What error messages does the instrument display?
(Keys “3” (Standby) and “4” (horn)=> Operating instructions)
( LED )
Is the LED above key 4 flashing or lit?
Flashing
Lit
Are other LEDs lit? Which ones?
Yes
No
( LED )
Block 3 / Visual inspection and functional test Please mark appropriately (X) If applicable, values / comments
Is the correct mains voltage (according to the rating plate) being
supplied to the instrument?
Yes
No
Does water flow out of the discharge hose during analysis?
Yes
No
Are the measuring chamber and sight glasses clean?
Yes
No
Are the measuring chamber and water hoses watertight?
Yes
No
Does the indicator still have shelf life remaining?
(See expiry date on the indicator bottle)
Yes
No
Expiry date:
Has the correct bottle size been set?
Yes
No
Size: 100 ml / 500 ml
Is the water pressure within the prescribed limits (400 ml/min)?
(See the instrument’s rating plate)
Yes
No
System pressure:
Has the outlet been installed free of back pressure along its total
length? (No “siphon effect”!!)
Yes
No
Is the outlet hose clear?
(Contamination by micro organisms or similar)
Yes
No
Has it been ensured that fresh measuring water reaches the
measuring chamber and that measurement is carried out within
the flushing time of 10 seconds?
Yes
No
Are the dosing pump hoses free of air bubbles?
(Operate the pump manually / carry out a manual analysis)
Yes
No
CARRYING OUT A MANUAL ANALYSIS
Does the indicator pump supply a dose when an analysis is
triggered?
Yes
No
Is the indicator properly mixed in the water during the dosing
process in the measuring chamber?
Check the magnetic stirring bar!
Yes
No
PROGRAMMING DATA / OPERATING CONDITIONS
Is the Testomat instrument constantly supplied with mains
power - except during maintenance work/emergencies?
(Occasional switching off only by means of the “Standby” or
“Input stop” keys!)
Yes
No
See “General instructions for
operating the Testomat
®
808”
Please refer to “Error messages / Troubleshooting” in the operating instructions for further information on error messages and
possible causes of faults.
Further functional tests and service instructions can be found in the maintenance manual
If you have examined the instrument with the aid of the checklist and answered “Yes” to all questions in Block 3 it can be
assumed that its functions are operating correctly.
We recommend that you carry out all tests contained in this checklist at every service and when faults have occurred.