Max Machinery G Series, Руководство пользователя

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G-Series User Manual Rev2020A 11
Field Compensation of Transmitter Continued
When a transmitter PCA is replaced or reset in the field, the compensation routine should be performed to optimize the
performance of the system. This routine requires a steady flow rate for the flow meter model as shown in Table A below.
The flow meter being compensated must not be used for system flow rate feedback control during this process. The
transmitter output is disabled during the compensation routine.
If you are unable to run a stable flow in the field, send your meter in to Max Machinery for calibration.
The compensation routine is as follows:
1. Place your system in ‘manual’ mode or run in ‘open loop’ mode with no flow meter feedback control. Max
transmitter output shuts off during field compensation routine. Loss of signal to ‘closed loop control’ modes can affect
the flow stabilization of the system and the compensation of the Max meter.
2. Stabilize the flow rate for your flow meter model as shown in Table A below.
3. Activate the compensation routine:
A - When using the software via the serial port connection, select ‘field compensation’ in the software.
OR
B - If NOT using software, push the Gold PCA Button using a non-conductive tool.
4. The blue/green LED will change to solid blue for 5 revolutions of the meter. See table LED Functions on next page for
duration of compensation process. Duration is dependent upon flow rate and requires at least 10 seconds at maximum
flow and 90 seconds at minimum flow.
5. A green LED light indicates a successful update of the compensation, a red LED light indicates the new compensation
failed. Additional information is available through the interface software.
6. Return your system to ‘operating’ mode or restore settings to allow for feedback control.
Max Flow Meter Minimum Flow Rate (cc/min) Maximum Flow Rate (cc/min)
G004 7 2210
G015 16 5155
G045 52 16,570
G105 146 46,640
G240 512 163,270
Field Compensation Flow Rate Table A