VACUUBRAND MPT 200 - Manual (Page 13)

page 13 of 22
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999226 // 05/05/2014
Troubleshooting
Fault Possible cause Remedy
❑ No display. ➨ Power supply (wall plug) not
plugged in, no power avail-
able?
✔ Plug in power supply, con-
nect cable of power supply
(wall plug) to DCP 3000.
Switch on device. Check
mains fuse.
➨ DCP 3000 switched off? ✔ Switch device on.
➨ Power supply (wall plug) not
connected to DCP 3000?
✔ Connect cable of power sup-
ply (wall plug) to DCP 3000.
➨ Other causes (device defec-
tive)?
✔ Contact local distributor.
❑ Malfunction of gauge
head (warning triangle
and display are flashing).
➨ MPT 100 / MPT 200 not con-
nected?
✔ Plug the MPT 100 / MPT 200
into the socket of the DCP
3000.
➨ MPT 100 / MPT 200 or con-
necting cable defective?
✔ Replace MPT 100 / MPT 200
or connecting cable if neces-
sary.
➨ Cold cathode not started? ✔ Wait for starting of the cold
cathode and allow for the
stabilization time. Clean the
gauge head, if necessary.
➨ Address of the MPT 100 /
MPT 200 changed?
✔ Remove rubber plug from the
address switch and set the
address to «1». Insert rubber
plug.
❑ The pressure reading
is too high in the high
vacuum range.
➨ Vacuum gauge head not cor-
rectly adjusted, cold cathode
does not start?
✔ Adjust vacuum gauge head
MPT 100 / MPT 200 under
vacuum.
➨ Vacuum gauge head contami-
nated?
✔ Clean the gauge head.
➨ Type of gas not considered? ✔ Comply with correction fac-
tors.
❑ The pressure reading is
too low at atmospheric
pressure.
➨ Vacuum gauge head not cor-
rectly adjusted?
✔ Readjust vacuum gauge
head correctly at atmospheric
pressure.
➨ Vacuum gauge head contami-
nated?
✔ Clean the gauge head.
➨ Deviation within the range of
the measurement uncertainty?
✔ Use pressure transducer
VSK 3000 (see accessories).
❑ Displayed pressure value
is fluctuating.
➨ Pressure fluctuations due
to the set-up of the vacuum
system?
✔ No measuring fault. Check
and change set-up of the
vacuum system if necessary.
➨ Plug of the cable to the vacu-
um gauge head not correctly
plugged in?
✔ Plug the cable correctly into
the socket at the rear of the
DCP 3000.