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Controller
2-5/16
[58.74]
1-11/16
[42.86]
2X (ø3/16)
[ø4.76]
2
[50.8]
2-3/8
[60.33]
2-3/4
[69.85]
3-1/2
[88.9]
5/8
[15.88]
1/4 NPT
9/32
[7.14]
“L”
Series
LLC
Conductivity Controller
Single Point or Differential Level Service, Compact Size, Up to 6 ft. (1.82 m) Probes
CONTROLLER
LEVEL
Level Switches,
Probe
Control valves, pumps and alarms with the versatile Series LLC
Conductivity Level Controller. Select the required number of probes
for single or dual point level detection. Choose probe lengths in 1-foot
increments (up to six feet) to adapt the LLC to your specific applications
requirements. The LLC features rugged 1/4˝ (6.3 mm) diameter, SS
probes, LED monitoring, surge protection, low voltage sensor and
different mounting options.
To build your level switch:
Controller:
1. Determine your supply voltage. Select between 120 and
240 VAC.
2. Determine the required sensitivity. Select between 10K Ω
and 26K Ω.
3. Determine the socket style. Select between 8-pin octal and
DIN mount.
Probes:
4. Determine the required number of probes. Specify quantity
of Threaded Mounting Couplings, model LLC-82.
(A coupling is required for each probe.)
5. Select probe lengths. Specify model numbers for probes.
Threaded Mounted Couplings
Model LLC-82
Conductivity
330
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
PROBE
SPECIFICATIONS
Service: Electrically conductive fluids.
Wetted Materials: 316 SS, PTFE.
Temperature Limits: Controller: -40 to 150°F (-40 to 65°C);
Probes: 406°F (207°C).
Pressure Limits: Probes: 400 psig (27 bar).
Switch Type: SPDT, NO or NC.
Electrical Rating: 10A resistive, 1/3 HP @ 120/240 VAC.
Power Requirements: 120 VAC or 240 VAC.
Process Connection: 3/8˝ male NPT.
Electrodes: 1/4˝ (6.3 mm) diameter, 316 SS.
Maximum Probe Length: 72˝ (1.82 m).
Controller Sensitivity: 10K Ω or 26K Ω.
Mounting: Controller: 8 pin octal or DIN mount; Probes: 3/8˝
male NPT.
Weight: Controller: 6 oz (170 g).
Controllers
Supply
Model
LLC-118
LLC-128
LLC-115
LLC-125
LLC-218
LLC-228
LLC-215
LLC-225
Voltage
120 VAC
120 VAC
120 VAC
120 VAC
240 VAC
240 VAC
240 VAC
240 VAC
Sensitivity
10K Ω
26K Ω
10K Ω
26K Ω
10K Ω
26K Ω
10K Ω
26K Ω
Socket Style
8-Pin Octal
8-Pin Octal
DIN Mount
DIN Mount
8-Pin Octal
8-Pin Octal
DIN Mount
DIN Mount
Probes
Model
LLC-31
LLC-32
LLC-33
LLC-34
LLC-35
LLC-36
Length feet(m)
1 (.3)
2 (.6)
3 (.9)
4 (1.2)
5 (1.5)
6 (1.8)
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