61F-GP-NH AC100 Omron, 61F-GP-NH AC100 Datasheet - Page 67

• Manufacturer Part Number: 61F-GP-NH AC100
• Description: LEVEL CONTROL
• Manufacturer: Omron
• Series: 61Fr
• Type: Level Control - High Sensitivityr

Specifications of 61F-GP-NH AC100

• Applications: Supply and Drain Control
• Mounting Type: Socket Mount (11 pos)
• Voltage - Supply: 100 VAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 61F-GP-NHAC100; 61FGPNHAC100

61F
In cases where the Electrodes cannot be withdrawn to test the Elec-
trode circuit, a tester can be used to measure the resistance be-
tween the Electrode and ground, as shown in the diagram below.
The measured resistance value indicates the length, contact condi-
tion, and mounting condition of the Electrode. For example, the se-
quence of Electrodes ordered from low measured resistance to high
is E
Follow the guidelines below to use this test method.
Inspecting the Electrode Circuits
1. Detach the leads from the 61F.
2. Measure the conducting status with the tank full. (The water
3. Measure the insulating status with the tank empty. (The water
3
(long), E
level must be at E
level must be at E
E
2
1
(medium), and E
E
2
E
3
1
3
minimum.)
maximum.)
E
1
1
Tester
E
(short).
2
E
3
Ground
Tester
Ground
Electrodes
Measure the resistance between the Electrodes if the wiring is cor-
rect but the 61F does not operate. Measure with a voltmeter using
the voltage drop method, as shown below.
The resistance between Electrodes (resistance of liquid between
E
R = V/I
Where,
R: resistance of liquid between Electrodes (Ω)
V: voltmeter indicated voltage (V)
I: ammeter indicated current (mA)
Select the 61F model according to the R (resistance) value.
Apply the specified power supply voltage with the Relay Units con-
nected to the 61F. Refer to the connection diagrams (internal wiring
diagrams) and short the 61F ground terminal to the operating termi-
nal of each Relay Unit. Check the operation of the relay output con-
tacts with a tester. With the 61F-11 models, the indicator will be lit
when the Relay Unit operates.
1
Measuring the Resistance Between
Inspecting the 61F-11N Relay Unit
and E
mA
V
3
) is given by the following equation.
An ammeter able to read approximately 1 mA
with as low an impedance as possible.
A voltmeter able to read a value of several volts
with as high an impedance as possible.
E
E
3
1
E
3
V
mA
E
1
61F