Cooper Instruments & Systems DFI 250X Digital Weight Indicator - Manual (Page 14)

CF 147 10 version 1.1
MOTION Visible when the displayed reading is not stable.
OVER Visible when the setpoint weight is over the setpoint target.
UNDER Visible when the setpoint weight is under the setpoint target.
ZERO BAND
Visible when the displayed weight is within the zero 'dead' band setting. (The zero
band symbol shows near the top right corner of the display.)
HOLD Visible when the displayed reading is held.
LOW
BATTERY Visible when battery voltage is too low and batteries need replacing or recharging.
(The low battery symbol shows in the top right corner of the display.)
When in Setup the editing annunciators are shown to identify the function of the front panel keys (i.e. GRP, ITM,
SEL, EDT and OK). For more information refer to Editing Annunciators section 4.1.
5.2 Operation Keys
The instrument has the following operation keys:
• POWER
Primary Operation Keys
• ZERO
• TARE
• GROSS/NET
• PRINT
• FUNCTION (user defined)
Each of the primary operation keys
has two separate functions.
5.2.1 Primary Function
A single press of each key triggers the weighing operation printed on it. The instrument allows individual keys to be
disabled in the setup. All keys are enabled at the factory, but some keys may have been intentionally disabled
(locked) during installation. If a key has been locked, a long beep sounds when it is pressed. If however, the key
beeps normally, but does not appear to trigger the desired action, it is waiting for the weight reading to settle before
the action can proceed.
5.2.2 Editing Function
Available during digital setup and calibration. This function is displayed using the editing annunciators above each
key. Refer to Editing Annunciators section 4.1.
5.3 Stability Considerations
Once a , or key is pressed the instrument waits for a stable valid reading before
performing the associated operation. If the weight readings remain unstable or invalid due to some diagnostic error
for longer than 10 seconds, the operation is cancelled and the STABLE ERROR message is displayed.
To improve the stability of the weight reading, increase the filtering or relax the motion detection criteria. Refer to
FILTER (Reading Average) section 7.4.2 and MOTION (Motion Detection)
section 7.4.2 for more information.
5.4 POWER Key
The <POWER> key is used to turn the instrument on and off. To initially turn the instrument on, press and
hold the <POWER> key. The display will show the following:
•
Display segments will light and then clear.
•
Software Version (e.g. V1.0).
•
Calibration Counter (e.g. C.00010). Refer to Calibration Counter section 6.5 for more information.
•
The current weight will then display.
To turn the instrument off, press and hold the <POWER> key for three seconds. The instrument will display OFF
followed by the three-second countdown.
When using batteries the backlight will automatically turn off to conserve power after a short period of inactivity. A
short press of the <POWER> key will turn the backlight on again. Refer to B.LIGHT (Backlight Operation) section
7.4.4 for more information.