WILKERSON INSTRUMENT CO., INC.

MM1620 AC Input Plug-In Dual Alarm
Mighty Module

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MM1620

MM1620
AC Input
Plug-In
Dual Alarm
Mighty Module

$374.00

The following information must be entered to complete your order:
See "Specifications" below for Input range limits.

Power:

Input:
Zero Scale
Full Scale
Units
Alarms: Alarm Action
  Alarm Logic

Quantity:

 

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Specifications
 
  • Features
  • Description
  • Specifications
  • Dimensions
  • Connections
  • Provides Relay Contact Closures at Preset AC Input
  • Fail-Safe, Latching and Adjustable Deadband Available
  • Red and Green LED Alarm Status Indicators
  • 50 mV or 1 mA Minimum Input Span
  • Unlimited Choice of Input / Output Ranges ( Within specified range limits )
  • Choice of Power Options
  • 10 Year Warranty

The MM1620 monitors an AC input signal and provides two sets of spdt, 5 A alarm relays with two independently adjustable setpoints. Each setpoint has a set of red/green LEDs to indicate alarm status. When the input is between the setpoints, the relays are normally de-energized. When the signal exceeds a particular setpoint, the relay becomes energized. To provide a “fail-safe” operation (loss of power resulting in an alarm state), select Option R. The module can be supplied as a HI/HI, HI/LO, or LO/LO alarm (HI/LO supplied if not specified).

Standard deadband on both alarms is fixed at 0.5% of span. (Option A provides adjustable deadband of 0.5% to 100% of span.) Option D, latching alarms, has no deadband control. Once the limit has been reached, the alarm latches and power to the module must be momentarily interrupted to reset the alarm.

All Wilkerson Products are designed with RFI filters and lightning protection to reduce susceptibility to electrical noise and damage by lightning.

TYPICAL APPLICATIONS

AC motor/current limit, AC power status or demand warning.

INPUT RANGE
Voltage select any range from 0 to 250 V rms max
(min span 50 mV)
Current select any range from 0 to 1 A rms max**
(min span 1 mA, internal shunt)

INPUT FREQUENCY
40 Hz to 1 kHz sine wave

INPUT IMPEDANCE
Voltage 200 kilohms
Current

Input Value Input Shunt Value
1 mA
10 mA
20 mA
100 mA
1 A
100 Ohm
10 Ohm
5 Ohm
1 Ohm
0.1 Ohm

SETPOINT
0 to 100% of span

DEADBAND
Standard fixed 0.5% of span
(Option A) 0.5% to 100% of span
(Option D) Latching. Interrupt power to reset.

RELAY CONTACTS (spdt)
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

TRANSISTOR OUTPUT
(Option V)
relay driver (12 V coil > 220 ohms) or open-collector outputs
sink 100 mA, 30 V supply max

RESPONSE TIME
1 sec typical

ACCURACY
±0.5% of span

COMMON MODE REJECTION
120 dB, DC to 60 Hz

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)
12 VDC (limits 10-16 VDC)

Isolation, DC power supply to input common: 10 megohms

** For input values greater than 1 A rms select appropriate external shunt resistor and use with 0-500 mV rms input

Mighty Module Dimension Drawing

PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
PIN 9
PIN 10
PIN 11
Power AC L1 or DC +
No Connection
Power AC L2 or DC -
Input Signal
Input Common
Relay Set 1 NO
Relay Set 1 C
Relay Set 1 NC
Relay Set 2 NO
Relay Set 2 C
Relay Set 2 NC
Specifications    Manual

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