Table 3-2 – Rice Lake 820i Programmable Indicator/Controller - Installation Manual User Manual
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820i
Installation Manual
SCALES Menu
Parameter
Choices
Description
Level 2 submenus
SCALEx
Allows configuration and calibration of each scale
CONFIG
Lists available and associated A/Ds
Level 3 submenus
GRADS
10000
1–9999999
Specifies the number of full scale graduations if SPLIT=OFF. (For multi-range and
multi-interval scales (SPLIT
OFF), the GRADS value is derived from the capacity and
display divisions specified for the range or interval.)
The value entered must be in the range 1–9999999 and should be consistent with legal
requirements and environmental limits on system resolution.
To calculate GRADS, use the formula: GRADS = Capacity / Display Divisions.
Display divisions are specified under the FORMAT submenu.
SPLIT
OFF
2RNG
3RNG
2INTVL
3INTVL
Specifies whether the scale is full-range (OFF), multi-range (2RNG, 3RNG), or multi-interval
(2INTVL, 3INTVL). For multi-range and multi-interval scales, see the submenu shown in
Figure
27 and parameter descriptions in Table
FORMAT
PRIMAR
SECNDR
TERTIA
ROC
For standard scales (SPLIT=OFF), see Level 4 submenu descriptions in Table
For multi-range and multi-interval scales, see Table
ZTRKBND
0
number
Automatically zeroes the scale when within the range specified, as long as the input is
within the ZRANGE and scale is at standstill. Specify the zero tracking band in ± display
divisions. Maximum legal value varies depending on local regulations.
Note
For scales using linear calibration, do not set the zero tracking band to a value
greater than that specified for the first linearization point.
ZRANGE
1.900000
number
Selects the range within which the scale can be zeroed. The 1.900000 default value is ±
1.9% around the calibrated zero point, for a total range of 3.8%. Indicator must be at
standstill to zero the scale. Use the default value for legal-for-trade applications.
MOTBAND
1
number
Sets the level, in display divisions, at which scale motion is detected. If motion is not
detected for 1 second or more, the standstill symbol lights. Some operations, including
print, tare, and zero, require the scale to be at standstill. Maximum legal value varies
depending on local regulations.
If this parameter is set to 0 the standstill annunciator does not light; operations normally
requiring standstill (zero, tare, print) are performed regardless of scale motion. If 0 is
selected, ZTRKBND must also be set to 0.
SSTIME
10
number
Specifies the length of time the scale must be out of motion, in 0.1-second intervals, before
the scale is considered to be at standstill. Values greater than 10 are not recommended.
OVRLOAD
FS+2%
FS+1D
FS+9D
FS
Determines the point at which the display blanks and an out-of-range error message is
displayed. Maximum legal value varies depending on local regulations.
WMTTHRH
1000
number
Specifies the minimum number of grads required for a weighment to be added to the
recorded number of weighments.
Table 3-2. SCALES Menu Parameters