Warrick a Brand of Gems Sensors Series 26 Modules Catalog Page
Series 26 Modules
Low-Water Cutoff – Plug-In Modules
Powered Contacts Solid State Reliability
Modular Plug-In Design LED Monitoring
Low Voltage Sensor Time Delays Available
11-Pin Socket Meets CSD1 Requirements
U.L. “Limit Control” Optional Test Feature
Optional Dirty Electrode Detection
Optional Manual Reset Button Feature.
If Level Drops, Control is Deactivated Until Liquid Level
Returns to Normal and Pushbutton is Depressed
Optional Power Outage Feature Ignores Nuisance Outages
and Resets When Power is Restored
Series 26M – General Purpose Control
Series 26M is designed for low-water cutoff protection. This control meets CSD1
requirements for boiler low water cutoff. Series 26M features powered contacts.
If non-powered contacts are required, request information on Series 26NM.
WARRICK CONDUCTIVITY SENSORS
Specifications
Contact Design 1 N.O. & 1 N.C. (powered)
Contact Rating (24/120/240VAC) 10 amp Resistive 1/3 hp
Mode of Operation Direct
Sensitivity 0 - 26K ohm, factory set
Primary Voltage 24 VAC, 120 VAC, 240 VAC
Secondary Voltage 12 VAC
Temperature -40°F to +150°F (-40°C to +65°C)
Approvals1 U.L. 353 File # MP1430
Terminal Style Screw connector
Options Time Delays, Power Outage, Manual Reset, Test Feature,
Dirty electrode detection; See page E-11 for descriptions
Notes:
1. 240 VAC and 208/240 VAC units do not carry U.L. Limit Control recognition.
How to Order
Use the Bold characters from the chart below to construct a product code.
1. Series
26M
2. Sensitivity
A – 4.7K
B – 10K
C – 26K
3. Supply Voltage
1 – 120 VAC
3 – 24 VAC 8 – 208/240 VAC
4. Socket Style
A – 11 Pin Octal
5. Enclosure
0 – None
6. Option Package
See page E-11, Chart B for code letter.
7. Time Delay (decreasing level) Option
03-90 seconds
Blank 3 seconds
8. Time Delay (increasing level) Option
00-90 seconds
Blank 0 seconds
D – 50K
E – 100K
2 – 240 VAC
B – DIN Mount M – None, Module Only
1 – NEMA 1 4 – NEMA 4
Series 26M
Applications
• Low-Water Cutoff
1
• Point Level
• Alarms
Dimensions
XXXXX26M XX XX
Note: Controls also available with DIN mount socket.
Wiring
Socket Details and Option Availability
are located on web site.
Caution: Contacts are powered. If non-powered contacts are required,
request information on Series 26NM.
Series 26
Low Water Cutoff – Standoff Mount
Meets CSD1 Requirements Snap-Thru Standoff Mounting
Non Powered Contacts Compact Size
Time Delays Available Power Outage Feature
LED Monitoring U.L. “Limit Control”
Test Feature
AC Current Minimizes Electrolysis
Series 26 – General Purpose Control
Designed for boiler low-water cutoff protection. A snap-through standoff mounting
device is available for Series 26 units. Optional Power Outage feature resets after
nuisance outages. Optional reset button is used when device has been deactivated
because of low water condition. Reset is functional only if water has returned to
normal level. Optional Test Feature available allows LLCO circuit to be tested without
draining the water level in the boiler. Built-in 3 second time delay is standard. Up to 90
seconds available for increasing and decreasing levels.
Specifications
Contact Design 1 N.O. & 1 N.C. (1 form C)
Contact Rating 10 amp Resistive 1/3 hp at 120, 240 VAC
Mode of Operation Direct
Sensitivity 0-100K ohm, factory set
Primary Voltage 120 VAC, 240 VAC1, 24 VAC, 208/240 VAC (+10%/-15%) 50/60 Hz
Secondary Voltage 12 VAC, 1.5 mA
Temperature -40°F to +150°F (-40°C to +65°C)
Approvals1 U.L. 353, U.L. 508 File # MP1430
Terminal Style Spade connection
Options Time Delays, Power Outage, Retrofit Plate, Test Feature,
See page E-11 for descriptions
Notes:
1. 240 VAC and 208/240 VAC are not U.L. recognized
LOW-WATER CUTOFF
Applications
• Low-Water Cutoff • Single-Level Service
• Point Level • Alarms
• Valve Control • Pump Control
Dimensions
How to Order
Use the Bold characters from the chart below to construct a product code.
26 X X X X X XX XX
1. Series
26 General Purpose;
2. Sensitivity
A 4.7K; B 10K; C 26K; D 50K; E 100K
3. Supply Voltage
1 120 VAC; 2 240 VAC; 3 24 VAC; 8 208/240 VAC
4. Standoff Style
A 1/16˝ Panel; B 1/8˝ Panel; C Screw mount; D Retrofit
5. Enclosure
0 None; 1 NEMA 11; 4 NEMA 4
6. Option Package
See page E-11, Chart B for code letter
7. Time Delay (decreasing level) Option
03-90 seconds; Blank 3 seconds
8. Time Delay (increasing level) Option
00-90 seconds; Blank 0 seconds
Notes:
1. Standoff Style D only.
Socket Details and Option Availability
are located on web site.
1
1
Wiring
L1 L2
LLCO
RESET
A.C. SUPPLY
TRANSFORMER
G
NC
C
NO
RESET BUTTON
OPTIONAL
LOW LEVEL CUTOFF PROBE
REFERENCE PROBE
TANK, IF METALLIC,
MAY BE USED
IN PLACE OF
REFERENCE PROBE.
WARRICK CONDUCTIVITY SENSORS
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