Technical Data:01-01E1R : UniSet E1 CO Detector
CO Sensor/TransmitterModel No.: CO-STE3 CO DetectorModel No.: 01-01E3RTypical Wiring Diagram
Gas detected:Carbon MonoxideDetection range:0-200 PPM
Sensor:N-type Metal Oxide SemiconductorFor remote sensor, order model #01-01E1REMounting:Wall or column with brackets (supplied)
Unit dimensions (mm):152mmH x 152mmW x 101mmD (6”H x 6”W x 4”D)Supply voltage:120V 50-60 Hz,15VA (available 24V or 220 VAC)Number of Relay Outputs:1 SPDT or 2 SPDT (01-01E1R+ Option)
Contact rating:3A 120V AC 1PHContact relay output :Selectable PPM level (0-200)LED indicators:Power On, Low Level, High Level
Audible alarm:Electronic buzzer at selectable PPM level.Table of other ACME Single Point Carbon Monoxide (CO) Detection Units. >
Principle of Operation:
The UniSet E1 CO detection unit employsan N-type Metal Oxide Semiconductor
sensor.An on-board hybrid microprocessor stabilizesthe response of the sensor by alternating its
heater current (low current and high current).
During the "high current" period, water vapor
and other miscellaneous gases are removed
from the sensor element's surface thus
enhancing its sensitivity and repeatability
characteristics. At an optimum moment close
to the end of the "low current" period the
output of the sensor is read by the
microprocessor and its value is stored in
memory. This cycle is repeated every one
second. The stored sensor output value is
updated at each "low current" to "high current"
transition.The stored output value of the sensor iscompared against the two pre-calibrated
"LOW" and "HIGH" CO alarm threshold
values and when found exceeding these
levels the respective CO status LED
indicators on the unit cover are energized.The UniSet E1 has an on-board output relayand an alarm buzzer that can be
independently configured to energize at
different CO levels. The standard factory
configuration is as follows : output relay
energizes at the "LOW" CO alarm level and
alarm buzzer energizes at the "HIGH" CO
alarm level. To alter the configuration please
refer to the operating manual of the unit.The UniSet E1 uses a thermistor in the sensorbridge circuit in order to minimize the sensor
dependency on ambient temperature and
humidity variations. MODEL 01-01E1R+-120SPDTRELAY OUTPUT CONTACTRATING: 3A @ 120V AC >
L N4 5 6 1 2 3
120V AC 50-60Hz,DEDICTATED CIRCUIT >
In the U.S.A.
Trimex Ind. Bldg., PMB #10
2330 State Route 11
Mooers, N.Y. 12958
Tel. : (518) 236-5659
Fax : (518) 236-6941 >
In Canada
Represented by:
3 or 4 fixed contact levels, plus time delay alarm level with audible alarm.Wall-mounted enclosure, dimensions (mm) 152H x 152W x 101D.For unit with remote sensor order model #01-01E3RE.4-20 mA analog output, no contacts.Wall-mounted enclosure, dimensions (mm) 152H x 152W x 101D. ACME ENGINEERING PROD. INC. ACME ENGINEERING PROD. LTD. 5706 Royalmount Ave.,
Montreal, Quebec
H4P 1K5
Tel. : (514) 342-5656
Fax : (514) 342-3131 >
E-mail : info@acmeprod.com - Internet : www.acmeprod.com
The information provided by this bulletin is a general description of ACME UNITS. All specifications are subject to change without notice.Installation, maintenance and other instructions provided with the equipment shall be closely followed by installers, owners and users. 2