Option Description - Hach WPC-21 Manual Del Usuario

Stand alone mode only
Option Description
Intervals BUF—Set the buffer (data log) interval. Options: OFF (disabled), 30 seconds, 1, 5, 10,
30 or 60 minutes.
At the end of each buffer interval, the date, time, sensor status and count are saved to
the buffer. The buffer holds a maximum of 100 records. When the buffer is full, new
data is saved over the oldest data.
Note: If a serial printer is attached, every time data is saved to the buffer that data is also sent to the
printer.
SCRL—Set the scroll interval. Options: OFF (disabled), 30 seconds, 1, 5, 10, 30 or
60 minutes.
At the end of each scroll interval, the instrument starts to monitor the next calibrated
particle size on Channel 2. When disabled, the particle size monitored on Channel 2 is
the Channel 2 Size setting.
Note: No data will be saved to the buffer if the buffer interval is longer than the scroll interval.
Buff Count/Print Refer to
Buff/Download shown is the number of entries in the buffer (data log).
Buff Count/View Refer to
Buffer/ Delete is the number of entries in the buffer (data log).
Buffer
Count Alarms Set the minimum number of particles that will trigger a Count alarm on Channel 1 and
Channel 2. To disable, set to 0.
A1—Count limit for Channel 1
A2—Count limit for Channel 2
Push INC to change the selected digit. Push the RIGHT arrow to select the next digit.
Network mode only
Option Description
Unit ID = 1 Set a unique address for the instrument. Options: 1 to 247. Address 0 cannot be used. This
option only shows when the MODE option is set to N (network mode).
Stand alone and Network mode
Option
Analog Count
Out/Upper 1/Lower 1
Analog Count
Out/Upper 2/Lower 2
Channel 2 Size
Flow Rate/Flow Alarm
Flow Alarm State
Active
Input 1/Input 2
Send the data log to a printer or computer
View or delete the buffer (data log)
Description
Set the count limits (range) for the analog output (4–20 mA) for Channel 1.
UL1—Upper count limit that will correspond to a 20 mA output signal
LL1—Lower count limit that will correspond to a 4 mA output signal
Set the count limits (range) for the analog output (4–20 mA) for Channel 2.
UL2—Upper count limit that will correspond to a 20 mA output signal
LL2—Lower count limit that will correspond to a 4 mA output signal
Push the UP and DOWN arrow keys to set the particle size that will be monitored
on Channel 2 when the scroll interval is set to OFF.
RATE—Enter the flow rate
ALM—Enable (ON) or disable (OFF) the flow alarm. If a flow monitoring device is
available, the flow alarm is monitored on the digital input (CTS pin).
Set the flow alarm to trigger on a high or low voltage input on the CTS pin
depending on the active state of the flow alarm device. Options: HI or LO.
If the Flow Alarm State Active option is set to HI, a high voltage input (> 2.5 VDC)
on the CTS pin from the flow monitoring device triggers a Flow alarm and 0 V
identifies a normal flow.
Refer to Identify the analog input values
on page 18. The Buff Count value
on page 18. The Buff Count value shown
on page 19.
English 17