Series 3 Digital Force Gauges
User’s Guide
10
Selection
Description
N Units
Output format includes the value and unit of measure. Compression values have
positive polarity, tension values have negative polarity.
Numeric Only
Output format includes the value only. Polarity same as above.
Invert Polarity
Compression values have negative polarity, tension values have positive polarity.
May be selected in addition to the N Units / Numeric Only selection.
Omit Polarity
Both directions are formatted with positive polarity. May be selected in addition to
the N Units / Numeric Only selection.
9.2 Data Output
Communication with Series 3 gauges is achieved through the micro USB port located along the left side
of the housing, as shown in the illustration in the
Power
section. Communication is possible only when
the gauge is in the main operating screen (i.e. not in a menu or configuration area).
The current reading is transmitted from the gauge when the
DATA
key is pressed. The gauge may also
be controlled by an external device through the USB cha
nnel by sending ASCII command ‘?’ (no quotes).
The command must be terminated by a CR (Carriage Return) character, 0x0D, or a CR-LF (Carriage
Return
–
Line Feed) pair, where the Line Feed, 0x0A, is ignored.
9.3 Command Responses
In response to the readi
ng request command ‘?’ the gauge will return a string with the load data, followed
by a space, then the load unit (if enabled under the
USB Settings
→
Data format
sub-menu). It will be
terminated by a CR-LF pair.
Example return strings:
-18.78 lbF<CR><LF> 18.78 lbF of tension force
1.724 N<CR><LF> 1.724 N of compression force
The number of digits after the decimal point is dependent of the gauge’s c
apacity and resolution.
By default, the minus sign (-) indicates tension, and the absence of a sign indicates compression.
However, positive / negative polarity may be inverted or omitted under the
USB Settings
→
Data Format
sub-menu.
Any detected errors are reported back by means of error code *10 (illegal command).
The gauge can send individual data points or continuous data to
MESUR
®
gauge
and
MESUR
®
Lite
software.
10 CALIBRATION
10.1 Initial Physical Setup
The gauge should be mounted vertically to a test stand or fixture rugged enough to withstand a load
equal to the full capacity of the instrument. Certified deadweights or master load cells should be used,
along with appropriate mounting brackets and fixtures. Caution should be taken while handling such
equipment.
10.2 Calibration Procedure
1. Select
Calibration
from the menu. The display appears as follows:
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