23
ANALOG OUTPUT
All models pH500XY1 and mV600XY1 are provided with
the analog output feature.
The output is isolated and can be a voltage or a current.
With the recorder, simply connect
the common port to the ground
output and the second port to the
current output or voltage output
(depending on which parameter
is being used) as depicted aside.
The type (voltage or current) and the range of the output
analog signal is selectable through the jumpers on the
power board.
Configurations of the switch are as follows:
Choice between different ranges with the same configura-
tion (for example 0-20 mA and 4-20 mA) is achieved via
software by entering the setup mode and selecting code 40
(see Setup Mode section for exact procedure).
Factory default is switches 1 and 3 closed (ON) and switches
2 and 4 open (OFF), i.e. 0-20 mA, 4-20 mA, and 0-10 Vdc.
In any case, contact your local Hanna Instruments Office
for changing of the default configuration.
By default the minimum and maximum values of analog
output correspond to the minimum and maximum of the
range of the meter. For example, for the pH500 series with
a selected analog output of 4-20 mA, the default values
are 0.00 and 14.00 pH corresponding to 4 and 20 mA,
respectively.
Output
Switch 1
Switch 2
Switch 3
Switch 4
0-5 Vdc, 1-5 Vdc
OFF
ON
---
---
0-10 Vdc
ON
OFF
---
---
0-20 mA, 4-20 mA
---
---
ON
---
0-1 mA
---
---
OFF
---
