Koehler KV5000, Руководство по эксплуатации и инструкция, Страница: 25 / 34

KV5000 Instrument & Software
Operation and Instruction Manual
KV5000-Manual
- 21-
6 Safety Features
The Koehler KV5000 Kinematic Viscosity
System is equipped with several safety and
protection features, which are described in the
following sections.
WARNING: The bath is NOT Explosion
Proof.
6.1 Over-Temperature Protection
The Koehler KV5000 Kinematic Viscosity
System is equipped with Over-temperature
Protection (OTP) circuitry, which prevents the unit
from exceeding unsafe operating temperatures. If
the unit cannot maintain the set point temperature
and begins to decline, the OTP circuitry may have
been activated. Please follow these steps.
1. Turn off the unit power switch and disconnect
the line cord.
2. Determine the source of the problem and
correct the situation.
3. Restart the unit. Monitor the operations to
ensure that the unit is operating properly. If
you are still experiencing trouble, please
contact
Koehler technical service for
assistance.
6.2 Over-Power Protection
The Koehler KV5000 Kinematic Viscosity System
is equipped with Over-power Protection circuitry,
which prevents the unit from unsafe electrical
conditions. If power to the unit is lost, then turn off
the main power and turn it back on again. The
main power switch also functions as a circuit
breaker.
7 Troubleshooting
WARNING: Troubleshooting procedures involve
working with high voltages and/or temperatures
which may result in personal injury or death, and
should only be performed by trained personnel.
Please do not hesitate to contact Koehler for
assistance.
7.1 The unit does not power up

Establish that the socket outlet is providing
proper and adequate voltage.

Check if Overpower Protection circuitry
located directly behind the temperature
controller inside the front tray has been
activated.

Check if line switch is in the ON position.

If problem persists, please call the Koehler
technical service department for assistance.
7.2 The unit is an and keeps resetting
into start up routine

For 220V units, make sure that the socket
outlet is greater than 215V.

Check if there is a steady and reliable power
source.

Make sure the connector plug on the rear
panel is firmly plugged in.
7.3 The unit is on but the bath does not
heat up

Make sure that the actual temperature reading
is not higher than the set-point temperature.

Determine if the temperature controller is
properly calibrated by comparison to an ASTM
standard thermometer.

Determine if the Overtemperature Protection
(OTP) circuitry as been activated.
7.4 The bath heats up but does not
stabilize

Make sure there are no drafts from open
doors, windows, or environmental control
vents in the vicinity of the bath.

If the set temperature is close to ambient, then
you may need to circulate cold water through
the coils in order to achieve proper
temperature stability
.
8 Maintenance
WARNING. Disconnect power to the unit before
servicing to avoid exposure to high voltages
and/or temperatures which may result in personal
injury or death. If you have any questions about
maintaining your equipment, then please do not
hesitate to contact the Koehler technical service
department.
8.1 Routine Maintenance
The KV5000 Kinematic Viscosity System
requires little routine maintenance to provide many
years of continuous service. However, over the
course of time, some instrument parts may need
to be replaced. When ordering replacement
part(s), please provide the model number, serial