Siargo MF4000 - Page 22

www.Siargo.com MF / FS4000 User Manual 21 | P a g e
different gases. It is recommended that write protection should be applied
after this value is changed.
Response time
0x0017
Write
Y
Read
Y
Description
Meter response or data sampling time
Value type
UINT 16
Notes
The default value is 10 (10 msec). Options are 10, 20, 50, 100, and 200 msec. It
is recommended that write protection should be applied after this value is
changed.
High flow alarm
0x0031 ~ 0x0032
Write
Y
Read
Y
Description
Set the high flow rate alarm limit
Value type
UINT 16
Notes
The set flow rate value = ((0x0031)*65536+(0x0032))/1000
Low flow alarm
0x0033 ~ 0x0034
Write
Y
Read
Y
Description
Set the low flow rate alarm limit
Value type
UINT 16
Notes
The set flow rate value = ((0x0033)*65536+(0x0034))/1000
Offset reset
0x0027
Write
Y
Read
N
Description
Reset or calibrate the offset
Value type
UINT 16, fixed value 0xAA55
Notes
Send the fixed value 0xAA55 to register 0x0027.
Please make sure there is no flow before executing this command.
Write protection
0x0014
Write
Y
Read
N
Description
Write protection of a specific value
Value type
UINT 16, a fixed value of oxAA55
Notes
This function disables the write-protected register and allows you to modify
the corresponding register’s value. For example, to change the gas conversion
factor, the user needs to send 0xAA55 to the register 0x0016, and then the
write function will be enabled (write protection is disabled). After the write
execution is completed, the firmware will automatically re-enable the write
protection.