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SECTION 9 TROUBLESHOOTING
9.1 Troubleshooting the EC1000 Controller
9.1.1
Test Diagnostic Menu
The diagnostic menu is a special menu for troubleshooting and setting the user
programmable keyboard lockout code. The menu is entered from the normal operating
mode (displaying pH or mV) by pressing both
ENTER
and
CLEAR
at the same time. Once
entered, the user can scroll through the following menu entries:
Note: Entry into the diagnostics menu is not allowed if the keyboard is locked.
See Section 2.2.6 Keylock.
DISPlay TeST: Pressing
ENTER
at this menu entry runs the display through a sequence of
test patterns to determine if the displays are functioning correctly.
The test patterns are as follows:
1. All LEDs on.
followed by:
2. All LEDs off.
3. A * scrolling through the main display.
4. An 8 scrolling through the lower display.
5. The display stepping through the digits 0, 1,2...9
ReLaY TeST: Pressing
ENTER
at this menu entry runs the relays through sequence
operations to determine if the relays are functioning correctly.
The relay operation can be checked two ways. The first is to listen for six relay clicks. For
an additional check, check the relay contacts with a digital volt meter (DVM). The relay
sequence is as follows:
1. Close all relays.
2. Open all relays.
3. Close the Alarm 1 relay.
4. Close the Alarm 2 relay.
Summary of Contents for EC1000
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Page 18: ...18 Figure 1 Controller Front Panel...
Page 20: ...20 Figure 2 Pump Module...
Page 24: ...24 Figure 6 pH Control Loop...
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Page 58: ...58 Figure 12 Controller Installation Panel Mount...
Page 61: ...61 Figure 15 Installing the pH ORP Electrode Figure 16 Flow Thru Cell...
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Page 73: ...73 6 4 Calibration See Section 2 3 Calibration Figure 21 Priming Tee Operation...
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Page 83: ...83 Figure 24 Sensor Replacement...
Page 85: ...85 Figure 25 Hach One pH Process Electrode...
Page 89: ...89 Figure 26 Pump Module Plumbing Diagram...
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