Caution This type of locking will not protect the
instrument against a fully intentional act
of sabotage.
2.5.3 Menu Functions (Overview)
All menu functions of the UL 200 are described briefly in
the following list. For detailed information on each menu
item please refer to Chapter 2.5.4.
Display example (4/2) Brief description
––––––––––––––––––––––––––––––––––––––––––––
Basic menu:
01:Trigger 1 3.0E+05 Set leak rate trigger values
02:Mode Vacuum Select leak detection mode (vacuum,
partial flow or sniffer leak detection)
03:Gas Ballast closed Remove helium background with the
gas ballast facility
04:Test <enter> Check the measurement signal for
helium
09:Password 1 locked Enter password for access to the
extended menu
Extended menu:
10:EVAC Time 1 30s Monitoring of gross leaks
11:Sensitivity normal Select sensitivity
12:Display LR + PE Select information which is to be dis-
played on the LCD (4/2)
13:Recorder LR Select chart recorder function (3/11)
14:Control by Keyboard 1 Select control means
(START / STOP / VENT)
15:RS232 Baud rate 9600 SERIAL connection (3/10), setting up
of parameters
16:Relay Mode 1 Definition of the function output
18:Alarm Trigger off Select acoustic warning
19:LCD Contrast 8 Change contrast for the LCD text
display line (4/2)
21:System BG display off Display / suppress helium background
during Standby
22:Vent Delay 1.5s Set venting delay time
23:System integration off Switch systems leak detection mode
on / off
24:Request for CAL off Automatic request for calibration
on / off
25:Mass 4 Select mass
26:Date 09.Apr.96 Set date and time
27:Language english Language select
28:Power Frequency 50Hz Set mains frequency
29:Pumping Speed 25 m
3
h
-1
Entry of the pumping speed for the
partial flow pump.
30:Cal Leak 6.9E-7 mbar·l·s
-1
Entry of the value of the calibrated
leak (internal)
31:Only GROSS off Locks the FINE mode
Display example (4/2) Brief description
––––––––––––––––––––––––––––––––––––––––––––
32:ZERO-time 1 s Entry of time constant for sliding Zero
33:QUICK-Pump time Entry of time defining sequences in
partial flow mode
49:Change Password 1 ? Change password 1
Service menu:
50:Password 2 locked Permit changes in the service menu
51:2.4 14000 D970000000 Display software version number, cata-
logue number and serial number
52:01 E53 03.07.96 13:00 List error log
53:Status to RS232 <Enter> Output status report through RS 232
54:Scan To Rec <Enter> Output mass spectrum
55:Value PE 1.2E+2 mbar Display (internal) measurement quan-
tities
56:Cycles V1 0012354 Display valve cycle counter
57:Operat.Time 111111h Operating hours counter
58:Task 00.00.00 Display process status
59:Offset 00.000V Display characteristic quantities for
leak rate calculations
70:Automatic on Switch automatic functions on / off
71:Valve Supply Auto Select valve supply voltage
72: 2a V1 Display valve status
73:Emission On Switch emission on / off
74:Anode M4 462V Run manual mass alignment
75:Amp Emi 500G 0.0035V Display preamplifier voltage
76:Gain A 16 0.087V Display A/D converter voltage
77:Cathode 1 Select cathode
78:Unit mbarl/s Select unit of measurement
79:Default Reset <enter> Reset parameters to default
82:Cal Leak Factor 3.39 Factor for the calibrated leak (internal)
90:Amp-Test <enter> Preamplifier test
91:Burn In On <enter> Burn-in test
92:Adjust Resistor Auxiliary alignment functions
99:Change Password 2 ? Change password 2
Via menu item 14 it is possible to lock the keyboard.This
ensures that parameters of menu items 01 to 08 can not
be changed.
2.5.4 Description of the Individual
Menu Functions
The individual menu items are described in the following.
The number and the general term of the menu item are
printed in bold face, followed by the status of the text line
as set up in the factory (default status).
01:Trigger 1
3.0E+05
Set leak rate trigger values
Here three trigger threshold levels can be entered inde-
pendently of each other. The two-digit factor and the
16
TH 10.211/8.02 - 12/97
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