YOKOGAWA YewSeries 80, Руководство пользователя

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6-4
IM 01B04K02-02E
6.3 Adjustment and Check
• For details of operation and adjusting procedures of JHT200 Handy Terminal, refer
to the instruction manual ‘‘JHT200 Handy Terminal’’ (IM 77J50H01-01EN).
• Do not turn off the power of the instrument during adjustment.
6.3.1 Adjustment of Input
Use JHT200 Handy Terminal for adjustment.
The procedure for adjustment is describes below.
(a) Connect the test equipment corresponding to each of input referring to Figure 6-1
through Figure 6-3.
(b) For thermocouple input, set reference junction compensation to OFF temporarily.
(c) Set the parameter write protect (W.P.) of setting jumper to OFF.
(d) Turn on the power while the equipment is connected to the instrument, and allow a
warm-up period of about 5 minutes.
(e) Connect JHT200 Handy Terminal.
(f) Call P03: ZERO ADJ1 of the adjustment item (P: ADJUST).
(g) Apply an input equivalent to 0% of the input range. Check the input value and the input
display value of P03: ZERO ADJ1.
(h) If the input value does not correspond to the display value of P03, adjust it using P03
parameter.
(i) Select INC (addition) or DEC (subtraction) for adjustment. (Selecting RST resets the
adjusted value and retrieves the factory-set default.) When the error is large, select HINC
or HDEC for adjustment using a value ten times as large as INC or DEC.
(j) Perform the same procedure for the 100% of input range. Use the parameter P04: SPAN
ADJ1.
(k) After completing the adjustment, set the parameter write protect (W.P.) of setting jumper
to ON as necessary.
(l) For thermocouple input, set the reference junction compensation to ON.
F0601.ai
J K
H
F
5 3 1
2 4 6
8 7
C A
D B
Digital Multimeter
( Measured with
resistance range )
Yokogawa DM7560
or the equivalent
Yokogawa GS200
or the equivalent
DC Voltage/
Current Standard
Power Supply
Figure 6-1 Wiring for mV DC Input Adjustment