3
1.3 General Description
(continued)
Most thermocouple transmitters with 4-20 mA outputs, including this
transmitter , are proportional with respect to the thermocouple input
voltage. However, the relationship between temperature and millivolt
for all the thermocouple types is somewhat non-linear.
This leads to maximum error at approximately the midpoint of the
range as shown in
Figure 1-2.
Figure 1-2 Straight Line Approximation of a Curve
1.4 Features
• 4-20 mA output
• +/-0.1% full-scale accuracy (with respect to the mV input signal)
• Upscale break protection
• Low Cost
RANGE
T/C CURVE
LINEARITY
ERROR
STRAIGHT LINE
INCREASING TEMPERATURE
INCREASING MILLIV
OL
TS
