Yokogawa EJX440A - Manual (Page 19)

<3. Operation>
3-9
IM 01C25T01-01E
3.4.3 Range Change
The range values are factory-set as specified by
the customer. To change the range, follow the steps
below.
(1) Keypad input — LRV and URV
• The measurement span is determined by the
upper and lower range values. In this method,
the upper and lower range values can be set
independently, and the span changes according
to the range limit values sent to the transmitter.
1
F0310.ai
EJX:YOKOGAWA
Keypad input
1 LRV 0.0 mmH2O
2 URV 2500.0 mmH2O
3 Unit mmH2O
4 LSL -10197.2 mmH2O
5 USL 10197.2 mmH2O
HELP SAVE HOME ENTER
EJX:YOKOGAWA
LRV
0.0 mmH2O
0.0
HELP DEL ESC ENTER
2
Enter 500, and press ENTER (F4).
EJX:YOKOGAWA
Keypad input
1 LRV 500.0 mmH2O
2 URV 2500.0 mmH2O
3 Unit mmH2O
4 LSL -10197.2 mmH2O
5 USL 10197.2 mmH2O
DEL HOME
3
To change the Upper Range
Value, select the URV item.
To change the Lower Range
Value, select the LRV item.
HELP SEND ENTER
(ENTER)
‘3 5 0 0’
(ENTER)
‘5 0 0’
(SEND)
EJX:YOKOGAWA
URV
2500.0 mmH2O
2500.0
HELP ESC
4
Enter 3500, and press ENTER (F4). DEL ENTER
EJX:YOKOGAWA
Keypad input
1 LRV 500.0 mmH2O
2 URV 3500.0 mmH2O
3 Unit mmH2O
4 LSL -10197.2 mmH2O
5 USL 10197.2 mmH2O
HELP HOME
5
Press SEND (F2) to send the
changed data to the transmitter.
Check that disappears.
SEND ENTER
SEND
Example: To change the range from 0 to 2500 mmH
2
O to
500 to 3500 mmH
2
O
1. Device setup
3. Basic setup
3. Re-range
1. Keypad input
Call up the Keypad input display.
NOTE
The calibration range can be set as LRV > URV
under the following conditions, reversing the 4 to
20 mA output signal.
LSL ≤ LRV ≤ USL
LSL ≤ URV ≤ USL
|URV – LRV| ≥ Min. Span