Watts AERCO Edge [ii] - Analog Outputs

Edge [ii] Controller Operation Manual
SECTION 3: CALIBRATION
OMM-139_E • 8/25/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 70 of 196
3.3.4 Analog Outputs
The Analog Outputs screen allows you to calibrate all the available analog outputs, such as a
valve or pump. If you select a programmable output, its function is displayed. You can also view
feedback (if available). If reliable feedback or external instrumentation indicates the reading is
inaccurate, you can adjust its reading via the Offset parameter. This process can be repeated
for all available analog outputs.
1. Go to: Main Menu → Calibration → Input/Output → Analog Outputs.
Figure 3.3.4: Input/Output: Analog Outputs Screen
2. Press the Analog Name field and choose the analog output you want to view. The chosen
output is displayed along with its current reading.
• Spare Analog Out 2
• Spare Analog Out 1
• DHW V.S. Pump
• Cascade Valve
• BLR V.S. Pump
• Spare Analog Out 3
3. If you chose Spare Analog Out 1 or 2 in step 2, the Function parameter provides a read-
only display of the function the output has been assigned, either Valve or Other.
4. The Board Reference shows I/O Board pins to which the output selected in Step 2 is
connected or shows “On Harness”. For more information, see the I/O board diagram in
Section 2.11 of the Benchmark Platinum-Edge Installation Manual (OMM-0136, GF-210).
5. Set the Level parameter to the reading from a reliable external instrument. For example,
set the Level to 5 V or 10 mA and observe that it matches the external instrumentation or
feedback, if available. If not, enter an appropriate value in the Offset parameter.
(Range: 0.00 to 10.00V or 0.00 to 20.00 mA)
6. If necessary, you can adjust the Offset to match a reliable reading or instrument by
entering a value in this parameter. (Range: -1.0 to +1.0 or -2.0 to +2.0 mA, default = 0.0)