Gems Sensors & Controls 26MB1M0 User manual

Form 261 Bulletin P/N 100204-1 Rev. K
Warrick® Series 26M Control
Installation and Operation Bulletin
This bulletin should be used by experienced personnel as a guide to the installation of the Series 26M Control. Selection or installation of equipment should always be accompanied by competent technical assistance. We encourage you to contact Gems Sensors or a representative if further information is required.
Specifications
Control Design: plug-in style housing. Not NEMA rated.
Contact Design: (input Power L1 connected to common of relay contacts) Contact Ratings:
@120/240VAC resistive (150°F), 1/3 HP @ 120/240-VAC (120°F). Contact Life:
Electrical -100,000 operations minimum at rated load Supply Voltage: +10%/-15% of nominal, 50/60 Hz. Factory Configured: 208V/240V Model: 187V Min to 242V Max, VAC 50/60 Hz
Power Consumption: gized ~ 4.4 VA.
Secondary Circuit: pere source capability.
Sensitivity: Ohms
Operating Ambient Temperature Range: +65°C)
Terminals: Time Delays:
ing level. Optional 0-90 sec. time delays in 1-sec. increments for rising and falling.
Listings: 24VAC and 120VAC Line Powered units only (220VAC, 240VAC, 208/240VAC units not rated).
Control carries U.L. Limit Control Listing (UL-353) for
Solid-state components enclosed in a clear Lexan
1 SPDT (1 form C), powered contacts
10A@120/240-VAC resistive (120°F), 1A
Mechanical -5 million operations
Factory Configured: 24V, 120V, 220V, or 240V AC
24/120/220/240-VAC with both relays ener-
2.3 VAC RMS voltage on probes, < 1 milliam-
Factory programmed to 4.7K, 10K, 26K, 50K, or 100K
40°F to +150°F (-40°C to
-
All connections made with screw-clamp terminals.
Standard LLCO, 0.5 sec. on rising level, 3 sec. on fall-
Installation
1. Install octal socket in appropriate enclosure using two #6 or #8 screws.
2. Install rail mount socket on appropriate rail (DIN mount) in appropriate enclosure if appli­cable.
3. Wire control per wiring diagram following N.E.C and local codes.
4. Install control module in socket.
Sensitivity vs. Maximum
Probe Wire Distance*
SENSITIVITY
C
HARACTER
A 4.7 900
B 10 600
C 26 250
D 50 100
E 100 50
Based on type MTW or THHN wire,
#14 or #16 AWG
SENSITIVITY
(K-OHMS)
Distance
(FT)
Dimensional Drawing
Mount the octal socket (base) on rigid vertical or horizontal surface using #6 or #8 screws. The control should be mounted within an enclosure of proper NEMA integrity.
Torque all terminals and socket mounting screws to 7 in-lb max.
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Wiring Diagram
Operation
AUTOMATIC RESET When the liquid rises to the electrode on terminal LLCO, the control energizes, changing state of the load contacts. (LED will be lit) The control remains energized until the liquid level recedes below electrode on terminal LLCO. The con­trol then de-energizes, (LED will not be lit) returning load contacts to original state. Unless otherwise specified, there is a three second time delay on decreasing level. Liquid must be below probe on terminal LLCO for a full three sec­onds before control de-energizes.
MANUAL RESET across reset terminals) When the liquid rises to the elec­trode on terminal LLCO, the control will remain de­energized until the pushbutton is depressed. Upon Reset Switch activation, the control will energize, (LED will be lit) changing the state of the contacts. The control remains energized until the liquid level recedes below electrode on terminal LLCO. The control then de-energizes, (LED will not be lit) returning load contacts to their original state. Unless otherwise specified, there is a three second time delay on decreasing level. Liquid must be below probe on terminal LLCO for full three seconds before control de-energizes. Operator to wait 5 full seconds after power is appli pressing reset switch (if manual reset is used).
MANUAL RESET OPTIONAL POWER OUTAGE FEA-
(Normally closed pushbutton across reset terminals)
TURE Control will auto-recover from a power loss. With liquid pre­sent on LLCO electrode at a power outage event, the con­trol will de-energize and will automatically re-energize upon return of power with liquid present on the probe at power­up. However, if loss of liquid is sensed on power-up, the control will remain de-energized until liquid again rises to electrode and pushbutton is depressed. The control will not attempt to auto-recover from a power outage if no liquid was present on the probe at power loss.
TEST FEATURE
Allows LLCO circuit to be tested without the need to drop the water level in the boiler to create a dry probe condition. Holding down the reset button for 3 seconds will allow the LLCO circuit to trip, simulating a dry probe. The controller will return to normal operation once the reset button is pressed a second time.
(Reset Switch terminals not wired)
(Normally closed pushbutton installed
ed before
I
LED STATUS INDICATOR on the control will either be on or off depending on the controller state. On-board microprocessors continuously monitor for fault conditions. In the event a fault is detected, the LED will blink a pattern indicating the fault type. If you experience an inoperable control and the LED is blinking, attempt to leave the control in the blinking state and con­tact the factory for assistance.
n normal operation, the LED
26MXXXXX-XX-XX
Time Delay Increasing Level:
0-90 seconds, Blank = 0 seconds. Time Delay Decreasing Level:
0-90 seconds, Blank = 3 seconds. Optional Character: Enclosure: 0-
None, 1-NEMA
see Chart
1, 2 NEMA 4
Socket Style: A Mount, M-NONE, Module Only
Supply Voltage:
-11 Pin Octal, B-Din
1-120VAC (+10%/
-15%), 2-240VAC (+10%/-15%), 3­24VAC (+10%/-15%), 5-220VAC (+10%/-15%), 8-208/240VAC (187 to 242 VAC absolute Range) Mode/Sensitivity: A
-26K, D-50K, E-100K
C
N.C.
Pushbutton
-4.7K, B-10K,
Power
Outage
Test
Feature A X X X B X
C X
E X F X X Y X X Z X X 0 No Option
-
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