TECPEL CL-420B Manual page 6

appears in the display. It denotes that the
Instrument is in an output state;
3) Press the key〔mA%/V〕, to select the output to be
set in 'mA'or %, and then the unit mA or mA%
appears, in which 0% denotes 4mA; 100% denotes
20mA;
4) Press the key 〔〕 / 〔 〕 to select the set digits of the
output;
5) Press the key〔〕/〔〕to change the value of the
set digits. The value can do carry or number
decrement automatically. Hold the pressed key in
one second and the numerical value will keep
varying.
25% Step Current Output
1) Connect to the Instrument as shown in Figure 5-1;
2) When the key 〔 OUTPUT/IN 〕 is pressed, the
OUTPUT appears in the LCD, it denotes the
Instrument is in an output state;
3) Press the key 〔 25%/RAMP〕 and the symbols ' ' and
''will appear;
4) Press the key 〔mA%/
be set in mA or %, and then the unit 'mA'or'mA %
appears;
5) Press the key 〔〕/〔〕to change the output in
V〕to select the output to
a value of 25%, in which 0% denotes 4mA and 100%
denotes 20mA;
6) Repress the key 〔25%/RAMP〕 so as to exit the step
current output.
Current Output Set for Zero Point & Full Scale
1) Connect to the Instrument as shown in Figure 5-1;
2) When the 〔 OUTPUT/IN 〕 key is pressed, the
OUTPUT appears in the LCD, it denotes the
Instrument is in an output state;
3) Press the key 〔100%/START〕 and the symbols ' '、
''、'0'、'FS' will appear in the display;
4) Press the key 〔〕 to be set to 100% and the current
output will be 20mA. Press the key〔〕to be set to
0% and the current output will be 4mA;
5) Repress the key〔100%/START〕so as to exit the
step current output.
Auto-ramp Output
1) Connect as shown in Figure 5-1;
2) When the key 〔 OUTPUT/IN 〕 is pressed, the
OUTPUT appears in the LCD, it denotes the
Instrument is in an output state;
3) When the key 〔 STEP/AUTO 〕 is pressed, the
symbols 'OUTPUT', 'OFF', '
appear in the LCD. If so, it denotes that the
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'along with '4mA'
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