Specifications
17 
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.4  HOLD Current Setting 
When Transmitter is  in  CAL  or  SETUP  modes,  it  automatically 
goes into a „HOLD‟ mode. 
To indicate Transmitter is in „HOLD‟ mode, output current can be 
set to 22 mA output by activating the „HLD On‟. 
1.  Press ENT key and use ▲ or ▼ keys to scroll till LCD 
displays „SEt‟  in  the upper  display;  and  „HLd‟  in the 
lower display. Press ENT again. 
2.  Upper  display  now  shows  „HLd‟.  Lower  display  will 
show either „OFF‟ or „On‟. Use ▲ or ▼ keys  to toggle 
between „On‟ of „OFF‟. Press ENT to accept selection. 
3.  Press    and   keys  together, to  return  to  MEAS 
mode. 
NOTE:  If  „HLd‟  is  set  to  „OFF‟,  then  current  output  will  be 
equivalent to last measured value. 
6.5  Out-of-Range Current Setting 
If pH or ORP readings exceed the scale, LCD displays „Or‟ (over-
range),  or  „Ur‟  (under-range).  Transmitter  current  output  can  be 
set to 3.8 mA to indicate Out-of Range situation. 
1.  Press  ENT key and use  ▲ or ▼ keys to scroll till LCD 
displays „SEt‟ in the upper display; and „org‟ in the lower 
display. Press ENT again. 
2.  Upper display now shows „org‟. Lower display will show 
either  „OFF‟  or  „On‟.  Use  ▲  or  ▼    keys  to  toggle 
between „On‟ of „OFF‟. Press ENT to accept selection. 
3.  Press  and  keys together, to return to MEAS mode. 
NOTE:  If  „org‟  is  set  to  „OFF‟,  under-range  will  be  set  at  4  mA, 
while over-range will be set at 20 mA. 
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD










