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Model 1264 Powder Feeder
Operator’s Manual
_____________________________________________________________________________________________________________________
Issued: 04/16
Page 38
3)
To operate as shown, the Local/Remote Switch should be set to
“REMOTE”, and the Feed On switch should be set to “ON”
Additionally, you can monitor the status of “Feed On” though spare
contacts in K2. Wire #’s 30 (N.C.), 34 (N.O.) and 31 (Common).
These wires are spares tied back into the existing harness. Relay K2 is
energized during Feed On.
4)
For full resolution of 4-20mA, but to lower top wheel speed while
retaining resolution, you can decrease the value of the external
resistor. For instance, if you place a 65 ohm precision resistor in the
circuit, your top wheel speed will be roughly 12.5 RPM at 20mA.
Recalibration of the circuit will be required.
5)
It is recommended that your wheel speed reading be made using a
calibrated tachometer. Although the display on the 1264 panel is quite
accurate, it is for reference only. All calibration readings should be
made with N.I.S.T. traceable instruments to ensure accuracy.
6)
To operate as shown, the Local/Remote Switch should be set to
“REMOTE”, and the Feed On switch should be set to “ON”
Additionally, you can monitor the status of “Feed On” though spare
contacts in K2. Wire #’s 30 (N.C.), 34 (N.O.) and 31 (Common).
These wires are spares tied back into the existing harness. Relay K2 is
energized during Feed On.
7)
For full resolution of 4-20mA, but to lower top wheel speed while
retaining resolution, you can decrease the value of the external
resistor. For instance, if you place a 65 ohm precision resistor in the
circuit, your top wheel speed will be roughly 12.5 RPM at 20mA.
Recalibration of the circuit will be required.
8)
It is recommended that your wheel speed reading be made using a
calibrated tachometer. Although the display on the 1264 panel is quite
accurate, it is for reference only. All calibration readings should be
made with N.I.S.T. traceable instruments to ensure accuracy.
9)
To operate as shown, the Local/Remote Switch should be set to
“REMOTE”, and the Feed On switch should be set to “ON”
Additionally, you can monitor the status of “Feed On” though spare
contacts in K2. Wire #’s 30 (N.C.), 34 (N.O.) and 31 (Common).
These wires are spares tied back into the existing harness. Relay K2 is
energized during Feed On.