24
ULTRA-E-F
to unlock it.
M48
Keypad Lock Code, enter a password in order to prevent unauthorized
keypad operating. Unlock it only using the correct password. If forgot,
contact factory for the password to unlock it.
M49
Comm. Test, for communication test.
M50
Data Logger Option,
M50
Logger Option
ON
If select data logger output, please select “ON”, then, press “ENTER”.
M51
Time setup for the data logger
Set up Start time , Interval time
M51 Logger Time
and Go On.
Start
00:00:00
Interval 00:00:00
if start to restore data right now, or
Go On 00:00:00
“Go On” time is longer than
24 hours, please use dot key
·
M51 Logger Time
on Keypad, as below:
Start
**:**:**
**:**:** .
Interval 00:05:00
It means it is no time limit
Go On
**:**:**
M52
Internal data logging direction control: ‘To RS-232’.
M53
CL Calibration, 4-20mA output calibration, Press ENTER when
ready. Meter window will display:
M53
CL Calibration
Pre ENT When Ready
M53
Use a Ammeter to verify
CL Calibration
4mA output, if not, use
4mA==>
-035_
key
∧
or
∨
, let the
output is 4.0mA.
Use the same way, let the
M53
Output is 20.0mA
CL Calibration
This function mainly used by
20mA==>
-100_
manufacturer.
M54
CL Mode Select
M54
Select Current Loop output mode
CL Mode Select
Use key
∧
or
∨
, can select
0. 4-20mA
different mode:
4-20MA, 0-4-20MA, 0-20MA, 20-4-20MA etc.
It is useful if negative flow occurs.
For instance, select 0-4-20MA output; user can define 0-4MA as
negative flow, 4-20MA as positive flow.