Yokogawa EXA PH202 2-Wire pH/ORP Analyzer - Manual (Page 57)

IM12B07D02-01E
5-6 Parameter setting
5-2. Commissioning mode
In order to obtain peak performance from the EXA, you must set it up for each custom application.
Output range mA output is set as default to 0 - 14 pH.
(*OUTP)
For enhanced resolution in more stable measuring processes, it may be desir-
able to select 5 - 10 pH range, for example.
Service codes 31 and 35 can be used to choose output function on mA output.
Hold The EXA transmitter has the ability to “hold” the output during maintenance peri-
ods. This parameter should be set up to hold the last measured value, or a fixed
value to suit the process.
Service This selection provides access to the service menu.
What follows are pictorial descriptions of typical frontplate pushbutton sequences for each parameter set-
ting function. By following the simple YES/NO prompts and arrow keys, users can navigate through the
process of setting range, hold and service functions.
mA
mA
(*HOLD)
(*SERV)