Testomat 808 Checklist - Lenntech Testomat 808 Manual De Mantenimiento Y De Servicio

Testomat® 808 checklist
®
Testomat 808 checklist
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 sys-
tematic 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
Block 2 / Error message and error history
What error messages does the instrument display?
(Keys "3" (Standby) and "4" (horn)=> press simultaneously)
Is the LED above key 4 flashing or lit?
Are other LEDs lit? Which ones?
Block 3 / Visual inspection and functional test
Is the correct mains voltage (according to the rating plate) being
supplied to the instrument?
Does water flow out of the discharge hose during analysis?
Are the measuring chamber and sight glasses clean?
Are the measuring chamber and water hoses watertight?
Does the indicator still have shelf life remaining?
(See expiry date on the indicator bottle)
Has the correct bottle size been set?
Is the water pressure within the prescribed limits?
(See the instrument's rating plate)
Has the outlet been installed free of back pressure along its total
length? (No "siphon effect"!!)
Is the outlet hose clear?
(Contamination by micro organisms or similar)
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?
Are the hoses vented?
(Operate the pump manually / carry out a manual analysis)
CARRYING OUT A MANUAL ANALYSIS
Does the indicator pump supply a dose when an analysis is
triggered?
Is the indicator properly mixed in the water during the dosing
process in the measuring chamber?
Check the magnetic stirring bar!
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!)
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 as-
sumed 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.
28
®
Testomat 808
Instrument type Instrument
number
Please mark appropriately (X)
Flashing
Yes
Please mark appropriately (X)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Indicator type
( LED )
Lit
No
( LED )
If applicable, values / comments
No
No
No
No
No Expiry date:
No Size: 100 ml / 500 ml
No System pressure:
No
No
No
No
No
No
See "General instructions for oper-
No
ating the Testomat
Software status
® 808"