Veris Technologies pH Manager - Operating Instructions - Manual (Page 17)

Pub.# OM17-MSP-pH
3-9
Figure 29
This screen allows you to adjust the offset that will be applied to channel 1’s electrode reading.
The offset is adjustable in 0.5 pH increments up to +/- 2.00 pH. NOTE: The firmware DOES NOT
apply this offset to the extracted file. Only the readings seen on the screen will be affected. Press
1 or 2 to adjust the reading down or up, and 3 to confirm the offset and proceed to the next screen.
Similarly, an offset can
be applied to channel 2’s electrode. Press 1 or 2 to adjust the offset down
or up, and 3 to confirm the offset and proceed to the next screen.
Figure 30
Sampling time is the duration that the sampler assembly is in the soil. Typically 2 seconds is
adequate. In soil conditions that do not produce a firm core, this time may need to be set at 3
seconds in order to allow soil to begin flowing through cutting shoe. If soil conditions result in a
very firm core, the sampling time may be reduced to 1 second. In rocky conditions, use 1 second
sample time to reduce likelihood of sampler shoe damage. Press 1 or 2 to adjust the sample time,
press 3 to continue to the next screen.
Figure 31
Maximum log time is the longest time in seconds the pH controller will wait for the pH readings to
settle. The controller usually cycles before this maximum time is reached. The minimum setting
for the maximum log time is 20 seconds. (Use 20 seconds unless there is a special reason to allow
a longer wait time) Press 1 or 2 to adjust the sample time, press 3 to continue to the next screen.
Figure 32
Select the type of water you are using to clean the electrodes between samples. The available
types are TAP, RO (reverse osmosis), or DI (de-ionized). Press 1 or 2 to cycle through the water
types, press 3 to continue to the next screen.
Tip: If you don’t want a baseline wash performed
every 40 cycles, use RO setting rather than Tap or DI (regardless of actual water being used).