WILKERSON INSTRUMENT CO., INC.

MM1720 Frequency Input Plug-In Dual Alarm
Mighty Module

Wici Logo
Home Button Wilkerson Instrument Co.    800-234-1343 Wilkerson Instrument Co Blog PageWilkerson Instrument Co LinkedIn PageShopping Cart

MM1720

MM1720
Frequency Input
Plug-In
Dual Alarm
Mighty Module

$395.00

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

Power:

Input:
Zero Scale
Full Scale
Units
  Pull-up Resistor
Alarms: Alarm Action
  Alarm Logic

Quantity:

 

Don't Forget Your Accessories
MP011 11-Pin Plastic Socket for Flat Surface or PVC Track $20.00
Quantity:
Specifications
DMP011 DIN-Rail Mounting Socket, 11 Pin $20.00
Quantity:
Specifications
CLP1 Hold down Assembly for MP011 $15.00
Quantity:
Specifications
HKB-HK2D-11 Explosion Proof Housing With MP011 Installed $280.00
Quantity:
Specifications
DR1 DIN-Rail, 35mm Symmetrical, 39 inches (1 meter) $20.00
Quantity:
Specifications
TRK48 PVC Snap-Track, 4 ft, for MP011 $25.00
Quantity:
Specifications
 
  • Features
  • Description
  • Specifications
  • Dimensions
  • Connections
  • Provides Relay Contact Closures at Preset Frequency Input
  • Fail-Safe, Latching, and Adjustable Deadband Available
  • Red and Green LED Alarm Status Indicators
  • Frequency Limit 60 kHz · 50 mV to 100 V Peak Input Sensitivity
  • Adjustable Threshold for Low Level Noise Rejection
  • Unlimited Choice of Input / Output Ranges ( Within specified range limits )
  • Input Pullup Resistor Available
  • Choice of Power Options
  • 10 Year Warranty

The MM1720 monitors a frequency 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 relays become energized. To provide a failsafe 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.

The wide range of input sensitivity allows the MM1720 to be driven from low level magnetic pickups as well as logic level signals. A threshold adjustment sets the minimum input amplitude the module will process. This allows the user to trade off sensitivity versus noise rejection. An optional pullup resistor (Option P) permits use with contact-closure or open-collector inputs.

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

INPUT RANGE
select any range from 0 to 10 Hz min to 0 to 60 kHz max

INPUT SENSITIVITY
any voltage from 50 mV to 100 V peak

INPUT IMPEDANCE
100 kilohms

OPTION P
Pullup resistor to + input 10 kilohms to +12 VDC

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.

ACCURACY
±0.1% of span

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

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

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

Solutions Provider for Signal Conditioning and
Process Control Instrumentation