Checkline DTMX User Manual
Page 12
5.40 Material Rigidity Selector
The Material Rigidity Selector permits the user to set the
DTMX for use on Textiles or Wires. It is used in the com-
puter calibration formulas to provide the highest mea-
surement accuracy. If using a process material other than
a Textile or Wire, choose the setting which best matches
the rigidity (stiffness) of the process material. If uncertain which setting is
best, check the calibration in each position and choose the one providing the
best accuracy. Refer to Checking Calibration, Section 8.10.
The Material Rigidity Selector is also used to select a special calibration (SP1
or SP2) which is optionally available. Refer to Special Calibration, Sec. 8.30.
5.50 Thickness Compensator
When using the "three-roller” principle of tension measurement, an increase
in material diameter will result in an increased tension reading even when the
line tensions are unchanged. The DTMX is supplied with a proprietary
Thickness Compensation system which automatically shifts the outer rollers to
compensate for this effect. Additionally, the Thickness Compensator measures
the material diameter with an accuracy of 0.01 mm (0.0004 ") for use as a fac-
tor in the com-puter calibration formula.
The Thickness Compensator is located on the back of the instrument. When
the Thumbpiece is pushed forward, two metal plates (anvils) will separate cre-
ating a slot for insertion of the material sample.
NOTE: 1. Some monofilaments, wires and other
difficult-to-bend samples will need special prepa-
ration prior to insertion into the Thickness Com-
pensator. See Preparing Sample for Thickness
Compensator.
2. It is unnecessary to use the Thickness
Compensator on the DTMX-200 because the
range of material diameters used with this
model is inconsequential.
TEX
WIRE
SP1
SP2
12
Thickness Compensator
anvils
7.41 Printer Setup Data
7.42 Printer Setup Data
.
7.50 Serial Output — Computer
The DTMX can be connected to Personal Com-
puters or other serial recording devices for
downloading the recorded data and all calculated
statistics. Additionally, a user can request a data
point from a Host Computer (Poll Command) and
perform a Zero ("Tare"). See below for details.
Press the key to download recorded data.
Remote Host Computer Commands (Poll)
Request Data Point
“D” (ASCII capital letter “D")
Zero
“Z” (ASCII capital letter “Z”)
21
DATA
OUT
On-Demand
Data Logging Mode
Continuous
Data Logging Mode
STATISTICS
UNITS g
DATA 12
MAX 154.2
MIN
101.5 AVG
137.7
DEV 13.77
DATA
1 101.5
2 120.7
3 140.7
4 133.9
5 135.2
6 136.8
7 140.5
8 146.4
9 147.4
10 146.4
11 148.6
12 154.2
**
END
**
STATISTICS
UNITS g
DATA 12
MAX 154.2
MIN
101.5 PEAK
157.5
AVG 137.7
DEV 13.77
DATA
1 101.5
2 120.7
3 140.7
4 133.9
5 135.2
6 136.8
7 140.5
8 146.4
9 147.4
10 146.4
11 148.6
12 154.2
**
END
**
Signal
Baud Rate Word Length Parity
Stop Bits EOL Delimiter
RS-232C
4800
8-bit
None
2-bits CR + LF