Symbols Used In The Instructions; Setting The Dp And The (-) Sign - Orbit Merret OMB 451UNI Manual

4 INSTRUMENT SETTING
Setting and controlling the instrument is performed by means of 5 control keys located on the front panel. With the aid of
these keys it is possble to browse through the operation menu and to select and set required values.
Relay status
(red/green/orange LED)
ON the digit is lit
OFF the digit is not lit
OFF the digit is flashing
limits with restriction
(hysteresis, delay)
Measured value
(red/green LED)
the last two places may display
measuring units
Indication of measured input
input number
(only for option "A")

Symbols used in the instructions

DC PM DU OHM RTD
values preset from manufacture
DEF
symbol indicates a flashing light (symbol)
42
inverted triangle indicates the item that can be placed in USER menu
MIN
CONNEC. broken line indicates a dynamic item, i.e. it is displayed only in particular selection/version
increasing the value by rotating the ke to the right (UP)
decreasing the value by rotating the ke to the left (DOWN)
pressing the key shortly
pressing the key for longer than 2 seconds (> 2 s.),
after pressing the key the set value will not be stored
after pressing the key the set value will be stored
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10 INSTRUCTIONS FOR USE OMB 450UNI
Indication of measured input
(red/green/orange LED)
0 100
372. 4
1 2 3 4
(green LED)
Indicates the setting for given type of instrument
T/C
200 300
~C
M T
Function
(green LED)
M Min/max. value
T Tare
LCD scale
400 500
Keys control