Voltage
(
ṽ
)
To measure the voltage follow these steps.
1. Set the voltmeter on Volts AC.
2. Place the positive probe on the black wire and the negative
probe on the white wire on the top of the contactor (source side).
3. Record the reading.
Amperage
(
Ã
)
To Measure the Amperage follow these steps.
1. Use a clamp type ammeter, set to Amps AC.
2. Clamp around the black wire on the bottom of the contactor
(load side). Marked Load 1 (L1).
3. Record the reading with mixer turned on.
Ohms
(
Ω
)
To Measure the Ohms follow these steps.
1. Turn off the circuit breaker feeding the control panel and follow
lock out tag out procedures.
2. Measure the Voltage to confirm that the power is removed.
3. Disconnect the black and white wires from the bottom of the
contactor (load side). Marked Load 1 (L1) and Neutral (N).
4. Set the Voltmeter to Ohms.
5. Place the positive probe on the black wire and the negative
probe on the white wire that were disconnected.
6. Record the reading.
Depending on the length and gauge of wires to the mixer the ohms
should be approximately:
1-4 Ohms, 120V and 6-10 Ohms, 230V.
Figure 1:
SCADA Control Panel
Problem
Possible Cause
Mixer Intermittently Tripping
Circuit Breaker
Multiple GFCI on Circuit
Source Power Fluctuation
Mixer Quickly Tripping Circuit
Breaker
Short to Ground
Locked Rotor on Motor
Mixer Not Operating but Circuit
Breaker not tripped
Loose or Loss of Connection
Mixer Making Loud Noise
Motor Bearing Failure
Impeller Misalignment
Figure 2:
Disconnect Control Panel
Contactor
Contactor
Incoming
Power
Incoming
Power
Troubleshooting Information
Serial Number
Location Name
Tank Name
Distributor Name
(if applicable)
Voltage Reading
Amperage Reading
Ohm Reading
(For Optional Mixer Control Panel)
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Troubleshooting
Troubleshooting
GS Series
1930_10004_20200811
O&M_GS12_120V_1PH_10025_20200811 - 13
