WILKERSON INSTRUMENT CO., INC.

MM1400 RTD Input Plug-In Single Alarm
Mighty Module

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MM1400

MM1400
RTD Input
Plug-In
Single Alarm
Mighty Module

$300.00

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

Power:

Input:
Zero Scale
Full Scale
Units
  RTD Element Type
Alarm: Alarm Action
  Alarm Logic
  Header

Quantity:

 

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Specifications
 
  • Features
  • Description
  • Specifications
  • Dimensions
  • Connections
  • Provides a DPDT Relay Contact Closure at a Preset RTD Input
  • 3-Wire or 2-Wire, 10 ohms to 2000 ohms RTDs
  • Standard Fail-Safe Operation
  • Red and Green LED Alarm Status Indicators
  • Adjustable Deadband
  • Latching Alarm Available (MM1410)
  • Unlimited Choice of Input Ranges ( Within specified range limits )
  • Choice of Power Options
  • 10 Year Warranty

The MM1400 monitors an RTD input signal and trips a dpdt, 5 A relay when the input exceeds the desired level. Normal operation has the relay energized for the non-alarm condition and  deenergized for an alarm condition. This provides a fail-safe alarm condition for loss of power to the module. The alarm has a set of red/green LEDs to indicate alarm status.

For the MM1400, a deadband adjustment allows a deadband of 0.5% to 100% of span to be set into the module. The deadband is symmetrical about the setpoint.

With the latching alarm option, the alarm has no deadband control. Once the limit has been reached, the alarm latches and power 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
Temperature control, monitoring or warning for HVAC, pumps, motors, etc.

RTD INPUT
3-Wire or 2-Wire, 10 ohms to 2000 ohms

INPUT RANGE
select any range within RTD limit [min span 25°F/14°C (100°F/55°C with 10 ohms RTD)]

EXCITATION CURRENT

RTD Current
10 ohms
100 ohms
1000 ohms
2000 ohms
10 mA
5 mA
0.5 mA
0.2 mA

SETPOINT
0 to 100% of span

DEADBAND
0.5% to 100% of span

OPEN SENSOR OUTPUT
> full scale

ACCURACY
±0.1% of span or 0.02 ohms, whichever is greater

COMMON MODE REJECTION
120 dB, DC to 60 Hz

RELAY CONTACTS (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

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

OPERATING TEMPERATURE
14°F to 140°F/–10°C to 60°C

TEMPERATURE STABILITY
±0.02% of span or 0.025°C/°C, whichever is greater

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

11 Pin Header (Option E) 20 Pin Header
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 +
RTD Compensating Lead
Power AC L2 or DC -
RTD
RTD
Relay Set 1 NO
Relay Set 1 C
Relay Set 1 NC
Relay Set 2 NO
Relay Set 2 C
Relay Set 2 NC
PIN 1
PIN 3
PIN 9
PIN 11
PIN 13
PIN 14
PIN 15
PIN 17
PIN 18
PIN 19
PIN 20
Power AC L1 or DC +
Power AC L2 or DC -
RTD
RTD
Relay Set 1 NO
Relay Set 1 C
Relay Set 1 NC
Relay Set 2 NO
Relay Set 2 C
Relay Set 2 NC
RTD Compensating Lead
Specifications    Manual

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