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ARM Intergrated Duplex Controller with
Intrinsically Safe Inputs
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- Microprocessor-based Alternating Relay
- Designed to Provide Equal Run Time on Two Loads
- Five (5) Intrinsically Safe Control Switch Inputs
- UL913 Listed Device
- Optional Panel Mounted Versions Available
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7m26
UL913
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Product Detail: |
The ARM Series Alternating Relay is a microprocessor-based controller designed for use in dual load installations to assure equal run time on each load. LED indicators show the status of the unit’s five intrinsically safe control switch inputs, one alarm, and two load outputs. H-O-A switches, a lead select switch, and a test/clear button are provided for manual control. The ARM Series reduces the number of components required for this application by combining many functions into one unit.
TWO PUMP SEQUENCING: Evenly distributes run time by automatically alternating lead and lag load designations when the off control switch input opens.
UL913 INTRINSICALLY SAFE: Control switch inputs are low voltage/low current and are electronically isolated from the control voltage and load-alarm contacts.
H-O-A Switches: Hand-of-automatic switches allow for manual operation.
LEAD SELECT SWITCH: Disables the automatic sequencing function and allows loads to be locked into the 2-1 or 1-2 sequence.
CONTROL SWITCH FAULT DETECTION: Unit detects open and shorted control switch failures.
TEST/CLEAR SWITCH: Verifies function and resets the control switch fault detection algorithm.
ALARM OUTPUT: Alarm contacts close when a control switch fails or the system’s capacity is exceeded.
INRUSH CURRENT DELAY: Reduces line sags by preventing both loads from energizing simultaneously.
VERSATILE MOUNTING: Two (2) mounting configurations are available. The standard surface mount has top access to controls and indicators and is intended for back panel mounting. The panel mount option is intended for front panel or door cutout access to controls and indicators.
SPECIAL CONTROLS: ARM-2003 and ARM-2010–Standard operation without the HOA switches ARM-2011–Standard operation without the Control Switch Failure feature. |
Part Numbers: |
Model Number |
Control Voltage |
Mounting |
Comments |
ARM-XXX-AFE* |
24 or 120 VAC |
Surface |
Standard |
ARM-XXX-AFEP* |
24 or 120 VAC |
Panel |
Standard |
ARM-2003 |
120 VAC |
Surface |
Special: w/o HOA switches |
ARM-2010 |
120 VAC |
Panel |
Special: w/o HOA switches |
ARM-2011 |
120 VAC |
Surface |
Special: w/o Control switch failure feature |
| *Replace XXX with desire control voltage (24, 120) |
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Options: |
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Consult Factory.
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| Cart: |
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Purchase Details: |
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Product Contact: |
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| Specifications: |
| Control Voltage |
24 or 120 VAC ±10%, 50/60 Hz |
| Control Switch |
Open Circuit Voltage |
5 VDC |
| Short Circuit Voltage |
0.1 mA |
| Power Required |
4 VA Maximum |
| Response Delays |
Power Up |
3 sec. ±5% |
| Inrush Current |
5 sec ±5% |
| Contact Rating |
(3) SPST-N.O. 10 Amp Resistive,
1/4 hp, 278 VA Inductive @ 120 VAC |
| LED Indications |
Designation |
Color |
State |
Condition |
Level/Alarm |
Red |
ON |
cs5 Closed |
Lag |
Green |
ON |
cs4 Closed |
Lead |
Green |
ON |
cs3 Closed |
Off |
Green |
ON |
cs2 Closed |
Aux. Off |
Green |
ON |
cs1 Aux./cs2 Closed |
Load 1 |
Green |
ON |
Load ON |
Load 2 |
Green |
ON |
Load ON |
Ctrl. Switch |
Red |
ON |
Failure Open/Closed |
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| Duty Cycle |
Continuous |
| Life Expectancy |
Mechanical |
20 Million Operations |
| Electrical |
75,000 Operations @ Rated Load |
| Temperature Rating |
Operate |
-4° to 131°F (-20° to 55°C) |
| Storage |
-40° to 185°F (-40° to 85°C) |
| Enclosure |
Style “E” Lexan® Surface Mounted |
| Terminations |
(12) #8-32 Screw Terminals |
| Weight |
16 oz. |
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ARM Intergrated Duplex
