Menu Description; Rel" Menu - Level Pro ITC 250 SERIES User Manual

250 SERIES
Loop Powered Display
Functions of buttons when editing numeric and switching parameters :
While editing numeric parameter - change of current (flashing) digit.
While editing switch parameter - selection of switch parameter.
If numerical parameter is being changed or edited a quick pressing of the [ENTER]
button will change edited position. A longer press and hold (min 2 sec) of the [ENTER]
button will causes the display to prompt the user a "SEt?" ask, which allow user to
make sure if change of the parameter value is correct. If switch parameter is being
edited, a short press of [ENTER] button causes of display a "SEt?" ask. When
[ENTER] button is pressed again (while "SEt?" is displayed) the new value of the
parameter is stored in EEPROM memory.
Pressing this button operator can cancel the changes done up to now (if they were not
ESC
approved by [ENTER] button after the "SEt?" ask) and come back to menu
MENU

7.3. MENU DESCRIPTION

- password checking. If some password different from "0000" is set, then every enter to
"- - - -"
main menu follows the entering of password. If entered password is correct then first menu
position will be displayed else warning "Err", and unit returns to measurement mode.
Due to problem with direct displaying of "m" letter, it is exchanged with special sign "m".
Independently in user manual letter "m" is used to make it more readable (example: "modE").

7.3.1. "rEL" menu

This menu allows to configure the operation mode of relay and LED marked "R". Principle of the relay
operation is described in paragraph CONTROL OF THE RELAY OUTPUT.
The relay output and LED (named R) can be controlled depend on both - the current value and the
peak value (when peak detection is active) of the input signal.
first threshold of the relay (range -999 ÷ 9999). Negative values can be input by selecting a "-" sign on first digit
"SEtP"
(to change value use [^] and [v] buttons). Threshold is the medium value of relay hysteresis.
second threshold of the relay (range -999 ÷ 9999). Negative values can be input by selecting a "-" sign on first
digit ( to change value use [^] and [v] buttons). This threshold is accessible when "modE" parameter is set to
"SEt2"
"in" or "out" value. Threshold is the medium value of relay hysteresis.
hysteresis of relay (range 0 ÷ 999). Full hysteresis of the relay is equal to 2x "HYSt" parameter.
"HYSt"
The relay state can change when an input signal is out of threshold-hysteresis to threshold+hysteresis zone.
Presented parameters should be set to ensure that "SEtP" + "HYSt", "SEt2" + "HYSt", "SEtP" -
"HYSt" or "SEt2" - "HYSt" do not exceeds the measure range. Additionally, in two threshold mode
("modE" = "in" or "out"), the hysteresis for both thresholds must not cover each other (in other
case relay can't change its state).
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