Jenway 3510 - Manual (Page 30)

Section 7
Troubleshootiing and functional checks
7.1 Troubleshooting
Fault Possible Cause Action
No display Check power supply Check that correct 9V ac power supply
is connected and switched on.
Erratic display Check power supply Unit must be used with supplied 9V
acpower supply. Usage of other units will
cause the 3510 not to operate.
Drifting erratic readings Electrode fault Use BNC cap to test 3510 (see 7.2)
Replace electrode.
Cannot calibrate Electrode Fault Use BNC cap to test 3510 (see 7.2)
Replace electrode.
ERROR EO ... Buffer problem Use freshly prepared buffers.
ERROR SLOPE .... Electrode problem Use BNC cap to test 3510 (see 7.2)
Replace electrode.
Unable to recognise Using correct buffer set Is the buffer type correct? Use AUTO for
buffers Jenway supplied buffers.
Replace buffers
Use BNC cap to test 3510 (see 7.2)
Replace electrode.
Temperature readings Temp probe faulty Check 3510 using section 7.2
fluctuating Replace temperature probe.
Temperature readings Temp probe faulty Check 3510 using section 7.2
incorrect Replace temperature probe.
Manual temp not set Set meter to read °C and set
temperature against a calibrated
thermometer.
Will not print Connection 3510 requires the RS232 cable to
connect the printer.
Paper out The feed light on the printer will flash if
the unit requires paper.
Battery flat Connect ac power supply.
If the above does not answer your query try the FAQ section on the www.Jenway.com Website.
351 050/REV B/09-06 27