ES-9807 Rev.9

MP1800

Limit Alarms M-PAC

POTENTIOMETER INPUT LIMIT ALARM

Functions & Features
• Accepting potentiometer resistance and providing relay contact closure(s) at a preset input level
• Single, latching or dual setpoint
• Failsafe operation available
• Deadband adjustable from 1 to 100%
• Indicator LED provided
Typical Applications
• Annunciator
• Various alarm applications

MODEL: MP18[1][2]-0-[3]/[4]

ORDERING INFORMATION

• Code number: MP18[1][2]-0-[3]/[4]
Specify a code from below for each of [1] through [4].
(e.g. MP1800-0-F/T/V)

[1] RELAY CONTACT OUTPUT

0: Single (Hi) trip, non-latching
1: Single (Hi) trip, latching
2: Dual (Hi/Lo) trip, non-latching

[2] SETPOINT CONTROL

0: Front-accessed three-turn screwdriver adjust
2: Remote dial connections (total resistance 1 k – 100 kΩ)
3: DC programmable (0 – 1 V DC)

INPUT POTENTIOMETER

Total resistance 100 Ω – 100 kΩ

[3] POWER INPUT

AC Power
F: 120 V AC
J: 240 V AC
DC Power
S: 12 V DC
R: 24 V DC

[4] OPTIONS

H: Latching operation for dual trip;
reset at power off (5 seconds min.)
(dual trip type only)
R: Reversed relay sense
T: Transmitter output (0 – 1 V DC)
V: Relay drive voltage output
X: Lo-trip sense for single trip; Lo/Lo for dual trip
Y: Hi/Hi-trip sense for dual trip (dual trip type only)

GENERAL SPECIFICATIONS

Construction: Plug-in
Connection: M3.5 screw terminals
Screw terminal: Chromated steel
Housing material: Flame-resistant resin (black)
Isolation: Input to output to power
(non-isolated between I/O with Option V)
Zero adjustment: 0 – 50 % of total resistance (front)
Span adjustment: 50 – 100 % of total resistance (front)
Setpoint adjustments: Front accessed three-turn screwdriver, remote dial potentiometer or DC input
Deadband adjustments: Front accessed single-turn screwdriver; 1 – 100 %
Front LEDs: Red LED turns on at a tripped condition
Power ON timer: Relays de-energized for approx. 2 seconds after power is turned on.

INPUT SPECIFICATIONS

■ Input Potentiometer: 100 Ω – 100 kΩ
Minimum span: 50 % of total resistance
■ Setpoint Control
• Remote dial connections
Potentiometer: Total resistance 1 k – 100 kΩ
Excitation: 4 V DC
• DC programmable: 0 – 1 V DC

OUTPUT SPECIFICATIONS

■ Relay Contact
• Single / Latching: Isolated DPDT relay; de-energized at trip
• Dual: Isolated SPDT relay; energized at trip
Rating: 120 V AC @ 3 A (cosø=1)
30 V DC @ 3 A (resistive load)
Electrical life: 10⁵ cycles
Mechanical life: 10⁷ cycles
For maximum relay life with inductive loads, external protection is recommended.
■ Relay Drive Voltage Output (option V): 24 V DC average; drives 1.2 kΩ or greater coil impedance
■ Transmitter Output (option T): 0 – 1 V DC; 1 mA max. (setpoint and process input)

INSTALLATION

Power input
• AC: Operational voltage range: rating ±10 %,
50/60 ±2 Hz, approx. 2 VA
• DC: Operational voltage range: rating ±10 %
ripple 10 %p-p max.
80 mA at 24 V
160 mA at 12 V
Operating temperature: -5 to +60°C (23 to 140°F)
Storage temperature: -20 to +85°C (-4 to +185°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface (DIN rail available for 11-pin base)
Weight: 400 g (0.88 lb)

PERFORMANCE in percentage of span

Repeatability: ±0.2 %
Temp. coefficient: ±0.05 %/°C (±0.03 %/°F)
Response time: ≤ 0.5 sec. (0 – 100 % at 90 % setpoint)
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1000 V AC @ 1 minute
(input to output to power)
2000 V AC @ 1 minute (output to ground)
Common mode noise rejection:
60 Hz: Greater than 120 dB
DC: Greater than 140 dB

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

MOUNTING REQUIREMENTS unit: mm [inch]