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MM1000A DC Input Single Limit Alarm
 Description
The MM1000A is a lower cost alternative to the MM1000 DC limit alarm for standard applications. The MM1000A monitors a DC input and trips a dpdt, 5 A relay when the input exceeds the desired level. The alarm has a green LED to indicate relay status.
Setpoint adjustment is provided by a 25-turn trimpot, adjustable from below 0% to above 100% of span. Deadband, also a 25-turn trimpot, is adjustable from below 1% to above 100% of span. A user-changeable jumper may be changed to provide high or low trip.
The module includes filtering and conditioning to reduce susceptibility to transients and noisy operations.
For options or input ranges not provided by MM1000A, refer to MM1000.
Download MM1000A Brochure
Download MM1000A Manual
Features
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Provides a DPDT Relay Contact Closure at a Preset DC Input
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Standard Fail-safe Operation
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Green LED Relay Status Indicator
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Adjustable Deadband
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1 V or 1 mA Minimum Input Span
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Unlimited* Choice of Input Ranges
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Choice of Power Options
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10 + 5 Year Warranty
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Typical Applications
DC Motor/current limit, level/position control, HI/LO pressure alarm, power demand warning.
Mounting
The MM1000A is designed to plug into a standard 11-pin relay socket. Part number MP011 is a molded plastic socket suitable for mounting on a flat surface or 2 3/4 inch wide PVC snap track (TRK48). Use CLP-1 hold-down clip, if needed. Killark HK Series explosion-proof housings are available with 11-pin sockets. Order HKB-HK2D-11. A DIN rail mounted socket (P/N DMP011) is available for 35mm symmetrical rail.
Specifications
INPUT RANGE
select any range within the following limits:
Voltage
Min span 1 V
Max input 250 V Current
Min span 1 mA
Max input 100 mA
Offset
0% of span min,
100% of span max
INPUT IMPEDANCE
Voltage
200 kilohms
Current
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Input
1 mA
10 mA
20 mA
4/20 mA
50 mA
10/50 mA
100 mA
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Shunt Value
1000 OHM
100 OHM
49.9 OHM
61.9 OHM
20 OHM
24.9 OHM
10 OHM
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SETPOINT
0 to 100% of span
DEADBAND
0.5% to 100% of span
RESPONSE TIME
20 ms typical
(range dependent)
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ACCURACY
±0.1% of span
COMMON MODE REJECTION
120 dB, DC to 60 Hz RELAY CONTACTS
1 (dpdt)
Resistive Load:
5 A max, 150 W max
220 VAC max, 30 VDC max Inductive Load
(Power factor 0.4):
2.5 A max, 75 W max
220 VAC max, 30 VDC max
OPERATING TEMPERATURE
14°F to 140°F
-10°C to 60°C
TEMPERATURE STABILITY
±0.02% of span/°C max
POWER
115 VAC 10%, 50/60 Hz
(2.5 W max)
230 VAC 10%, 50/60 Hz
(2.5 W max)
DC Power Option
24 VDC (limits 21-32 VDC)
Isolation, DC power supply to input common
10 megohms
* Within specified range limits |
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CONNECTIONS
Power, AC L1 or DC +
Power, AC L2 or DC -
Input +
Input -
Relay Set 1 NO
Relay Set 1 C
Relay Set 1 NC
Relay Set 2 NO
Relay Set 2 C
Relay Set 2 NC
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PINS
1
3
4
5
6
7
8
9
10
11 |
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