Partlow MIC 1801 Data sheet

MIC 1801

MICROBASED 1/8 DIN LIMIT CONTROLLER

1 8 0 1

ORDERING

1 Relay

0 None
1 Relay*
4 Transmitter Power Supply

0 None
1 Relay*
3 4-20mA**
4 Transmitter Power Supply

0 None
1 RS-485 Communications
2 Remote Reset

(Blank) None
02 Line Voltage 24 V AC/DC

* For alarm output only.
** For retransmission only.

+

Cannot be used if output 3=4.

++

Cannot be used if output 2=4.

OUTPUT 1

OUTPUT 2

OUTPUT 3

OPTIONS

SUFFIX

+

++

WARRANTY

This instrument is backed by
the Partlow comprehensive 2
year warranty. A complete
warranty statement is
published in the back of the
product instruction manual.
If you have further questions
about warranties, please
contact the Partlow factory.

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ORDERING INFORMATION

For pricing and additional
ordering information, refer to
Form 3265, Electronic Price

Book, Page 21.

DESCRIPTION

The MIC 1801 is a new line of limit controllers designed to provide a programmable safety cut out and optional alarm for use in
a wide variety of applications.

Packaged in 1/8 DIN, the MIC 1801 provides a latched relay output which is activated when process parameters either exceed
or fall below the desired value, providing a fail safe shutoff which has to be manually reset before the process can continue.

The instrument can be configured to be either a high limit unit where the relay will de-energize when the PV is above the limit
point setpoint, or a low limit where the relay will drop out when the PV falls below the setpoint.

LED indication shows when limits have been exceeded and when the relay is latched out.
It offers a full range of universal sensor input options, versatile configuration and a front panel sealed to NEMA4 type/IP65.
The MIC 1801 provides a valuable safety control element in most applications and systems.

SPECIFICATIONS

Input

Thermocouple types J, K, T, R, S, B, L and N.
RTD 100 ohm (.00385 ohm/ohm/C)
Volts 0 to 5VDC, 1 to 5VDC, 0 to 10VDC and

2 to 10 VDC
Millivolts 0 to 50mVDC and 10 to 50mVDC
Milliamps 0 to 20mADC and 4 to 20mADC
Sensor Fault Detection Displays or for thermocouple

or RTD inputs and sensor break, SnSr.

Control outputs set to OFF (0% power);

alarms operate as if the process variable

has gone over-range (TC) and under-range

(RTD & V, mV, mA)
Remote Reset Voltage free contact, closure required to

reset

Limit Output

Relay SPDT

5.0 A Resistive at 120/240 VAC

Alarm Output

Relay 2.0A Resistive at 120/240 VAC

Retransmit Output

0-20mADC into 500 ohm maximum

4-20mADC into 500 ohm maximum

0-10VDC 500 ohm minimum

0-5VDC 500 ohm minimum
Resolution >10 bits in >1000ms typical

Display

Digital Display Four 7 segment LEDs, top .36" high,

bottom .28" high
Status Indicators Individual LED indictors for OUT, Exceed,

ALM, and when in Setup

Maximum/Minmum Hold

Feature that tracks and saves the maximum (high limit) or minimum
(low limit) excursions of the process variable

Time Exceed

Feature that measures the amount of time that the limit is exceeded

Alarms

Maximum Number Two "soft" alarms
Maximum # Outputs Up to 2 outputs can be used for alarm

purposes
Comb. of Alarms Logical ORing and ANDing of alarms to an

individual hardware output is available

Alarm Adjustment

Process Alarm – Input Span

Performance

Measurement Accuracy – 0.25% of span, – 1 LSD at 20 deg C

Note: Reduced performance with
Type "B" thermocouple between
100-600C (212-1112F)

Ambient Temperature Error 0.01% of span /deg C change in

ambient
Linearization Accuracy Better than – 0.2 deg C any point,
(TC and RTD) any 0.1 deg C range (– 0.05 deg C

typical). Better than – 0.5 deg C any

point, any 1 deg C range
Cold Junction Compensation Better than – 0.7 deg C
Scan Rate 4 per second
Noise Rejection Common mode: >120dB at 50/60Hz

giving negligible effect at up to 264V

50/60Hz

Series Mode: >500% of span (at 50/60

Hz) causes negligible effect
Line Voltage 90 to 264VAC 50/60 Hz
Operating Temperature 0 to 55 C
Storage Temperature -20 to 80 C
Humidity 20 to 95% non condensing
Source Resistance 1000 ohm maximum (thermocouple)
Lead Resistance 50 ohm per lead maximum balanced

(Pt100)
Dimensions 1/8 DIN front panel, 4.33" deep
Weight 8 ounces maximum
Front Panel Sealing IP65/NEMA4
Power Consumption 4 Watts

Agency Approvals

FM File 120694.MMO

Digital Communications

Type RS-485 serial communication port:
Character Format ASCII
Bit Rate User configurable to 1200, 2400,

4800, 9600
Address User configurable 1 to 32

CONTROLLERS

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