Fisher Scientific 282A, Инструкция по эксплуатации, Страница: 9 / 25

8
8. After installing connecting tubing, check that the PURGE CONTROL valve on the Model 282 is closed (full
clockwise position) then open the regulator flow control valve to pressurize the line. At this point, check all
connections for leaks using an ordinary soapy water solution.
9. Check data plate and plug line cord into a suitable power receptacle
OPERATION
Main Controller Menu
Energize the oven by switching the ON/OFF toggle to the ON position. The upper display will show VER while the
lower display will show 1.0, indicating the current software version. Next, the DAY/TIME display will begin
alternating between the day of week and the time of day. At the same time, the TEMP/VACUUM display will
alternate between chamber temperature (
°
C) and chamber pressure (inHg). Press the MENU key to scroll through
menus 1-6, then press SET to enter a menu. When there is no keypad activity for 5 seconds, the unit returns to
menu 1 automatically. The following table lists the main menus and their functions. The tables that follow list
the subcategories of the main menu and describe the function of each.
Table 1: Main Menu
MAIN MENU
Menu
Prompt Display Functions Setup Functions
1 (Default) Top Display – Day of week, Time of day
Bottom Display – Temperature (°C), Pressure (in Hg) Adjust temperature control setpoint
Turn vacuum pump contacts On / OFF
2 ADJT Display temperature offset value Adjust temperature control offset
3 ADJP Displays pressure offset value Adjust for barometric pressure variations
4 TSET Displays flashing day or time value Set clock and day of the week
5 PRGM Displays program mode Start / Stop program mode
6 PSET Displays day, step and setpoint Program 7 – Day event timer
Table 2: Default Menu (Menu 1)
Step Key Entry Action Display
1 Press SET Unit enters
Temperature Setpoint
mode with the current setpoint
displayed. Use the UP/DOWN keys to adjust the setpoint.
SP:
280
2 Press SET 2
nd
Time The temperature setpoint is updated and the vacuum pump
ON/OFF option is displayed. Use the UP key to switch the
pump on, and the DOWN key to switch the pump off. PUMP
OFF
3 Press SET or wait 2
seconds Unit returns to the default menu. MON
280
Table 3: Adjust Temperature Offset (Menu 2)
Step Key Entry Action Display
1 Press MENU until ADJT
is displayed, then press
SET Use the UP/DOWN keys to adjust the temperature offset.
(Range +/- 30 °C) ADJT
00
2 Press SET or wait 2
seconds Unit returns to the default menu. MON
280
Table 4: Adjust Barometric Pressure Offset (Menu 3)
Step Key Entry Action Display
1 Press MENU until ADJP
is displayed, then press Use the UP/DOWN keys to adjust the pressure offset.
(Range +/- 8.0 inHg) ADJP
0.0