04E3920 User Manual QuickTOC
®
purity
ATEX 2 101
7 How to Work With the Analyser
7.2 Configuration
LAR | PROCESS ANALYSERS AG
The! Operator is used to invert a condition (! L1 means that the condition is met if the set limit no. 1
has NOT been exceeded).
• &-Operator
The & operator is used as a multi-condition AND connection (E1835 & E1810 & E2024 means that
the analog output drops to 0 mA only if all three error messages occur simultaneously).
• | operator
The | operator is used as an OR connection multiple condition (E1810 | E1844 | E2024 means that
the analog output falls to 0 mA when one of the error messages occurs).
Examples:
• Collective alarm: The corresponding relay is programmed as follows: E1810 | E1844 | E1835 If the
relay is to act as a normally closed contact, then the following must be entered:! (E1810 | E1844 |
E1835 | E2024) ? Please observe the round brackets!
• Measurement finished: The corresponding relay is programmed as follows:! M1. This means that the
relay is closed when the activity "Measure channel" is finished. The contact remains closed until the
next measurement begins.
7.2.6.2 Testing the Relays
Check the relays with a multimeter (to be carried out only by authorized personnel as the rear housing
must be opened) or check the programming of the relays at the control center.
Check the relays with a multimeter (which can emit a sound):
1. Open the rear housing
2. Connect the multimeter to the relay (Fig. 26, page 41). First set the continuity test on the
multimeter.
3. Activate the selection window for the multi-meter connection in the "Relay setting" view (Example
the multimeter is connected in relay No. 2, so the relay 2 selection box in the "Relay setting" screen
must be set to "ON")
4. A sound will sound (only if the multimeter can output a sound!)
5. If there is no sound, check the multi-meter. If the multi-meter is in order, please contact the
technical support of LAR AG (Chapter 15.1 on page 183).
6. After checking the relays, close the housing again.
Check your programming of the relays in the control center:
1. If the relay is programmed and connected to the control center, this can be checked with the con-
trol center.
2. Confirm the corresponding relay with the selection box.
3. In the control center the error message is now displayed.
4. If no error message is displayed, it is usually due to a wiring error. Please contact the technical
support of LAR AG (Chapter 15.1 on page 183).
7.2.7 PC Settings
There are the following settings options:
• Change password
• Change date / time
• View software version
• Calibrate the touch screen
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