ES251 datasheet(14/35 Pages) CYRUSTEK

14 / 35 page

V 1.2

2016/04/27

ES251

2000 Counts DMM

1.11. Temperature Measurement mode

Temperature measurement mode takes input signal from TEMPin (pin2). The ES251 has ºC to ºF

scale translation circuit and standard K-type thermocouple reference table is built-in. External

cold-junction compensation circuit is still necessary. In temperature measurement mode, there is

automatic mode and manual mode. The TSEL pin (pin45) is used to control the automatic mode

(0.1

OC/1OC resolution) or manual mode (0.1OC resolution) selection. TSYMB (pin 44) could enable or

disable display of input terminal symbol on the LCD panel (SEG18).

Manual range

Auto Range

ºC range

-200.0 ºC ~ 200.0 ºC

/ 1350 ºC

ºF range

-328.0 ºF ~ 392.0 ºF

/ 2462 ºF

1.12. ADP

ES251 provides 4 manual range ADP measurement modes for user define. The ADP pin is

auxiliary input terminal for ADC of ES251. The full scale for ADP mode is 200.0mV. If FC5=0, the

minus sign will not be shown on LCD segment.

Mode

FC1~4

SLACDC

Full Scale

Input Terminal

CAL

ADP0

0,0,1,1

2000

ADP V.S. SGND

Yes

ADP1

0,0,0,1

200.0

ADP V.S. SGND

Yes

ADP2

0,1,1,1

20.00

ADP V.S. SGND

Yes

ADP3

0,0,1,0

2.000

ADP V.S. SGND

Yes

Note: If FC5 is set to V-, the minus sign will be disabled.

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