Manual
35
UART Error Codes:
1 - Not Supported Command or Back Door is not enabled.
2 - Wrong # of Arguments.
3 - Address is Out of Range (MR or MW commands).
4 - Wrong # of the characters in the Argument. 
5 - Attempt to Alter Write Protected Area in the EEPROM.
6 - Proper Command or Argument is not found.
7 - Wrong value of the Argument.
8 - Reserved.
9 - Manufacture specific info EE KEY (wrong key or key is disabled).
COMMAND
NAME
DESCRIPTION
No.
COMMAND SYNTAX
Command Argument 1
Argument 2
Argument 3 Argument 4 Response
Maintenance
Timer
Hours since last time unit 
was calibrated.
11 C
R (read timer)
<Value> (in Hours)
C(set timer to zero)
CC
Full Scale
Returns the full scale rated flow in 
L/min. (Note: This term is not 
multiplied by the current K factor)
12
E
<Value> 
(in L/min)
LCD Back
Light 
LCD Back Light control 
(0-100.0%)
0  - off
100  - Maximum Intensity
13
B 0 to 100%
B:<Counts> 
where:
Counts (0 – 4095) 
B:<Value> 
where:
Value (0 – 100.0)
No Argument
<Current settings>
Read 
EEPROM 
Memory
Reads the value in the 
specified memory location.
14
MR 0000 to999
(Table Index)
<value>
Write 
EEPROM 
Memory
Writes the specified value to the 
specified memory location. Use 
Carefully, can cause unit to 
malfunction. (Note: Some addresses
are write protected!)
15 MW 0000 to 999
(Table Index)
Value MW,XXX,<Value> 
where:
XXX=Table Index










