Yokogawa EXA DC402 Dual-Channel Conductivity Analyzer - Manual (Page 75)

IM 12D08E02-01E
11-2 Appendix 2
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QIS 12D08E02-01E
e. Press the [>] key once. The data display will show “80” with the second digit of 0
flashing.
f. Press the [  ] key seven times. The data display will show “87” with the second
digit of 7 flashing.
g. Press the [ENT] key. The message display will show “PASS.”
(2) Setting Password 070.
a. Press the [>] key once. The data display will show “000” with the second digit of 0
flashing.
b. Press the [  ] key seven times. The data display will show “070” with the second
digit of 7 flashing.
c. Press the [ENT] key. The message display will show “HIF.”
d. Press the [YES] key.
(3) Confirming the date and time.
a. Press the [ENT] key. The data display will show the date in day, month, year
format.
b. Press the [ENT] key. The data display will show the time in hour, minute, second
format.
c. Press the [ENT] key. The message display will show “mA 1+2.”
This is the inspection mode. When the message display shows “mA 1+2,” check the
current outputs.
Each time the [ENT] key is pressed, the value on the data display increase in steps of 4.0
like “4.0,” “8.0,” and “12.0.” Check the current outputs 1 and 2. Corresponding to the data
display, the current output must be within the range shown in Table 1.
When the data display shows “12.0,” pressing the [ENT] key causes the message display
to show “RIPPLE” and the data display to remain unchanged. Press the [ENT] key again.
The message display will show “mA 1+2” and the data display “16.0.”
Table 1
Data Display Current Output (mA DC)
4.0 4 ±0.02
12.0 12 ±0.02
20.0 20 ±0.02
3.4 Contact Operation Test
Following Section 3.3, press the [ENT] key until the message display shows “JUMPER.”
Then press the [ENT] key once, the message display will show “WAIT” and LEDs S1,
S2, WASH/S3, and FAIL/S4 flash rapidly. Check that the message display shows and
LEDs turns on/off in the order as shown in Table 2 and that a message of “FAIL x” does
not appear.
Table 2
Message Display S1 S2 S3 FAIL/S4
LED1 OFF ON ON OFF
LED2 ON OFF ON OFF
LED3 ON ON OFF OFF
LED4 ON ON ON ON