SMC Networks 4011 Series Instruction Manual page 3

SIERRA MONITOR CORPORATION
INSTRUCTION MANUAL
LI
PRODUCT DESCRIPTION
1.1.1 Introduction
The Model 4011 Single Channel Controller
has been designed to interface to an industry standard4-
20mA Module or other standard Voltage/Current
Modules (see Specifications) and provide the user with
two independent adjustable alarm levels. Each alarm
level can be programmed to be either non-Latching or
Latching and can also be programmed to activate either
when the input level is GREATER THAN the user
adjusted alarm level or LESS THAN the user adjusted
alarmlevel. When the Model 4011 is used as a 4-20m A
signal loop controller a third alarm is provided which
detects loop current being less than 3mA. The outputs
of the three Alarms are SPDT relays with contacts rating
of 10A at 28VDC or 120VAC and are independently
fused at 5A.
The front panel of the Model 4011 consists of
a 3 1/2 digit Liquid Crystal Display, three Alarm LEDs,
a Reset Pushbutton, four display selection LEDs and a
Select Pushbutton. The SELECT button steps the
display through one of the four possible selections
which will be indicated by the appropriate illuminated
LED.
The following are the Display selections:
CONC: TheactualconcentrationLevel(Oto 100%
or PPM).(Factory Option Available:
Any scale from 0 to 1,990 PPM)
ALM1: Alarm Level 1 user adjusted Alarm Level
0-100% or PPM).
ALM2: AlarmLevel2useradjustedAlarmLevel
(0-100% or PPM).
LOOP: Actual Loop Current (4-20mA).
The three alarm indication LEDs on the front
panel are Trouble (loop current less than 3mA) Alarm
Level 1 and Alarm Level 2. The RESET pushbutton is
used to reset the relays when the user has selected
Latching or Acknowledge Mode.
The Model 4011 is packaged in a 1/8 DIN
Enclosure (1.9H x 3.8 W x 6.5D inches) and can be panel
mounted. Wiring connection to the controller is via a
two piece terminal block which allows disassembly of
the controller without disconnection of individual wires.
The controller is supplied in the following
configurations.
-Model 4011-00: Controller 4-20mA input, DC, DIN
-Model 4011-10: Controller 4-20mA input, AC, DIN
1.1.2 Options
The following options are available on theModel
4011.
A. Power Supply & Battery Charger
Model4346:24VDC@ lAmppower
supply with a trickle charge battery
charger, (figure IB) Capable of po¬
wering four Model 4011 controllers.
B. Battery
12 Volt 6.5 AH
C. Chart Recorder
Singlechannel impact printchartrec¬
order with speed of 2" per hour.
D. Enclosures
Various Nema and Explosion Proof
Enclosures are available.
Model Number: 4011 Single Channel 4-20 mA Controller
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