Koehler K259 Series, Руководство по эксплуатации и инструкция

Страница: 16 / 22

K259XX Constant Temperature Water Bath
Operation and Instruction Manual
K295XX-Manual
- 12-
b. Press the up and down arrow buttons
simultaneously for about 5 seconds. When
Auto Tune is active, the lower green LED
display will blink
TUNE . Auto Tune will
automatically toggle off when the set point
temperature is reached. Auto tune can be
terminated by pressing the up & down
buttons simultaneously again.
5 Operation
Please be sure to read the safety and hazard
warnings, the installation procedure, and any of the
standard test methods before operating this
instrument.
1. Turn the line switch (Figure 2, Item 7) to ON . At
this time the power indicator light (Figure 2,
Item 8) and temperature controller (Figure 2,
Item 9) will turn on and illuminate.
NOTE: Do not power ON the instrument without
appropriate medium in the bath.
2. Turn the bath stirrer motor switch (Figure 2,
Item 10) to ON .
3. Turn the line switch on the mechanically
refrigerated chiller
(Figure 5, Item 18).
4. Turn the cooling switch (Figure 2, Item 11) to
ON. This will begin pumping the bath medium
from the bath to the chiller for cooling. The chiller
will cool the bath medium directly to -25°C.
5. Maintain the desired test temperature of 15°C by
adjusting the set temperature of the controller
(Figure 2, Item 9) to 15°C.
6. Allow time for the bath temperature to
equilibrate.
7. Proceed with performing the test according to
the test methods prescribed in
Section 1.2 of
this document.
6 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, please do not hesitate
to
contact the Koehler Technical Service
department.
6.1 Routine Maintenance
The K259XX Constant Temperature Water Bath
requires little routine maintenance to provide many
years of continuous service. The bath medium
should be replaced if it becomes dirty. If any other
service problems arise, please contact Koehler’s
Technical Service department. Over the course of
time, some instrument parts may need to be
replaced. When ordering replacement part(s),
please provide the model number, serial number,
and product shipment date of your equipment so
that we can ensure you will receive the proper
replacement part(s).
6.2 Replacement Parts
Part Number Description
091-032-001 Solid State Relay
090-240-012 Relay, 240V
240-230-004 Transformer
‡
¥
265-400-002 RTD Temperature Probe
275-103-044 Temperature Controller
278-001-002 Fuse, 1A, Slo-Blo
K23700-03014A Motor, 230V
‡
¥
K23700-03013A Motor, 115V
†
K25995-0-15 Heater, 1000W
‡
K25990-0-15 Heater, 1000W
¥
K25900-0-15 Heater, 750W
†
†
For 115V 60Hz model ONLY (K25900)
‡
For 220V 50Hz model ONLY (K25995)
¥For 220V 60Hz model ONLY (K25990)