Hach MET ONE 6000 Manuel D'utilisation De Base page 19

Option Description
Server Port ModbusTCP server listen port (default = 502). Range:
0 to 65535, integer only.
Client Port Not available (disabled)
Gateway Router or access point to another network (default =
169.254.1.5)
Remote Server Not available (disabled)
IP
Ethernet Sets the Ethernet protocol to Modbus or FXB.
Protocol
2. For Ethernet units with the analog output feature, refer to
the LAN settings through a network
Ethernet settings.
3. Click Save Settings to save the changes.
Configure the LAN settings through a network
1. In the setup utility software, select the LAN Setup tab. The software
looks for LAN instruments. The LAN instruments found are shown.
2. Select an instrument to show the LAN instrument settings.
3. Change the LAN settings. Refer to the options table in
Ethernet settings on page 18.
4. Click Save Settings to save the changes.
Do an analog output test
For instruments with the analog output feature, do an analog output test.
1. Connect the analog outputs to the load resistors of the data
acquisition system.
Note: As an alternative, install a set of load resistors with 0.1% accuracy and
at least 0.25 W capability across the analog output. Load resistor values of
100, 250 or 500 ohms are typically used.
2. Let a tiny amount of particles flow through the instrument to get a
count in the test channel.
Configure
on page 19 to configure the
Configure the
Note: One method to get counts is to use a zero count filter, and put a pin-hole
in the tubing that is between the filter and the instrument.
3. On the Basic Setup tab of the setup utility software, temporarily set:
• Count Cycles—1
• Sample Timing: Hold—10 seconds or more
4. Click Save Settings.
5. Select the Data Display tab, then click Monitor if shown so the data
shown can update continuously as each sample is taken.
6. Click Sample if shown to start sample collection.
7. When the Status value changes from "Count" to "Stop", measure the
voltage across the load resistors for each channel. Also note the
counts shown in the display for each channel.
8. Use the equation that follows to calculate the expected voltage from
the counts shown. Make sure that the measured and calculated
voltages agree.
Voltage = (((SC ÷ FC × 16) + 4) ÷ 1000) × RL
Where:
SC = sample count at the end of the sample period
FC = full-scale channel count. Refer to the analog settings in the
setup utility software.
RL = value of the load resistor in ohms
The expected output voltage when the full-scale channel count is
1000 with a 100, 250 and 500-ohm resistor is shown in
9. To do the test again, do steps 7–8.
10. For units with a flow monitor, temporarily remove the central vacuum
from the instrument.
11. While a flow alarm is active, measure the voltage across the load
resistors for each channel.
12. Use the equation that follows to calculate the expected voltage.
Make sure that the measured and calculated voltages agree.
Voltage = < (0.002 × RL)
Where: RL = value of the load resistor in ohms
Example: for a 100-ohm resistor, the voltage should be less than
0.20 V.
Table 7.
English 19