SMC Networks 4011 Series User manual

INSTRUCTION
MANUAL
sine
sierra monitor corporation
1991 Tarob Court, Milpitas, CA 95035

CONTENTS
Page
1.1 Products Description
i
2.1 Installation
2
3.1
Calibration
8
3.2
Service
9
4.1
Specifications
9

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
Page: 1

Sierra Monitor Corporation
INSTRUCTION MANUAL
2JL INSTALLATION
2.1.1 Site Preparation & Installation
The Model 4011, if panel mounted, requires a
3.58"Wx 1.69"H+/- 0.010" cutout. The depth required
behind the panel is 8.0" which leaves sufficient space to
connect cables at the rear of the enclosure. A properly
grounded AC outlet within 6 feet of the enclosure is
required.
To install the controller:
1. Remove the two alien screws at the
rear of the enclosure that secure the
panel mounting bars on the side of
the enclosure.
2. Completely remove the bars and insert
the Model 4011 through the front of
the panel cutout
3. Reinstall the panel mounting bars
and the alien screws. Tighten alien
screws until the Model 4011 is se¬
curely mounted in panel.
4. Connect the (DC+) wire of the power
supply module to the terminal block
at the rear of the Controller marked
(P) and connect the (DC-) wire of the
power supply module to the terminal
block at the rear of the Controller
marked (G) (figure 1A & IB).
5. Connect alarm or control devices to
the appropriate relay terminals. It is
recommended that 18 AWG wire
(minimum) be used when connecting
to the relay contacts.
6. Connect the 4-20mA remote Sensor
Module to the terminal block labeled
“P” (Power=+24 Vdc), “S” (Signal=
4-20mA) and “G” (Ground). The
“P” and “G” positions are also used
for connecting the DC Power Sup¬
ply.
7. If external alarm acknowledge or rest
is to be used connect a momentary
switch to the terminals marked
“GND” and “ACK”
8. If the chart recorder output is to be
used connect to terminals marked
“AOUT”, “+12V” and “GND” for
chart recorder power and signal.
Refer to the Table 1 to determine the correct
wire gauge for the distance the Sensor Module will be
from the Model 4011 Controller. The manufacturer
recommends Belden cable UL-1007 or UL1015 of the
appropriate gauge.
Wire Gauee
Maximum Cable Leneth(ft)
20
2,000
18
3,000
16
4,000
14
6,500
12
9,000
TABLE 1
CABLE GAUGE AND LENGTH
Model Number: 4011 Single Channel 4-20 mA Controller
Page: 2

SIERRA MONITOR CORPORATION
INSTRUCTION MANUAL
FIGURE 1-A
MODEL 4011 CONTROLLER(WITH AC ADAPTER)
Model Number: 4011 Single Channel 4-20 mA Controller
Page: 3

Sierra Monitor Corporation
INSTRUCTION MANUAL
2.1.2 Start-up Procedure
After all the wiring has been installed plug the
Power supply into an AC outlet. The CONC LED
(GRN LED) on the front panel should be ON and the
LCD should be displaying 00.0 if the loop current is
4ma or less. If not make sure that the wiring from the
power supply is correct.
If the unit has a Power Supply with trickle
charged battery connect the 12v battery (see figure IB)
and turn ON power. The 24v OK LED and Battery OK
LED should be ON, if not check for blown fuses. If any
fuses are blown check wiring before re-applying power.
Alarm 1 and Alarm 2 are preset at the factory
to default levels of 10% and 50% full scale respectively.
Model Number: 4011 Single Channel 4-20 mA Controller
Page: 4

SIERRA MONITOR CORPORA TION
INSTRUCTION MANUAL
2.1.2.1 Alarm Adjustments
To change the alarm levels for Alarm 1 and
Alarm 2 first select the appropriate Alarm level to be
displayed using the SELECT button to step through the
choices available. Next loosen the two thumbscrews on
the front panel to remove the face plate. Alarm 1
adjustment potentiometer is in the bottom righthand
comer and above it is Alarm 2 adjustment potentiome¬
ter. Using a small jewelers screwdriver adjust the
respective potentiometer until display shows the re¬
quired setting. When Alarm adjustments are complete
replace front panel and change display back to CONC
(figure 2).
NOTE: There is a deliberate hysteresis built
into the alarm function to avoid oscillation when the
input (or 4-20mA Calibrator) remains close to the set
point. This hysteresis will cause the alarm to activate at
the set point and turn off at a slightly lower level than the
set point (or higher level if alarm level is programmed
to activate on the falling edge).
2.1.2.2 Alarm and Relay Configuration
Table 2 shows the positions for the jumpers to
be set for each alarm function. The default factory
settings are indicated. To change settings turn OFF all
power sources to the controller and unplug terminal
block. Remove the two screws in the upper side of the
rear clear panel and slide controller board out of the
case. Lift the jumpers using needle nose pliers and
remove/replace them as required.
Model Number: 4011 Single Channel 4-20 mA Controller
Page: 5

Sierra Monitor Corporation
INSTRUCTION MANUAL
W4
J
W5
■
Alarm 1 Latching
■
W4
T_
W5
T
Alarm 1 Non Latch (factory)
W6
JP
W7 ■
Alarm 2 Latching
■
W6
W7
J
Alarm 2 Non Latch (factory)
■
W1
■
Trouble Alarm Normally Not Energized
W1
J
Trouble Alarm Normally Energized (factory)
■
W2
■
Alarm 2* ** Alarm Low
t.
W2
J
Alarm 2' Alarm High (factory)
■
W3
■
Alarm 1* Alarm Low
W3
J
Alarm 1* Alarm High (factory)
■
W8
■
Relay and Alarm LED Test NOT Enabled (factory)
W8
J
Relay and Alarm LED Test Enabled
■
W9
■
Stripchart Power OFF (factory)
W9
J
Stripchart Power ON
* Alarm low indicates the relay will energize when the input value is below the set point.
** Alarm high indicates the relay will energize when the input value is above the set
point. ____
TABLE 2
ALARM AND RELAY JUMPER POSITIONS
Model Number: 4011 Single Channel 4-20 mA Controller
Page: 6

SIERRA MONITOR CORPORATION
INSTRUCTION MANUAL
2.1.2.3 Alarm Test
To test Alarm Relays and Alarm status LEDs loosen the
two thumbscrews on the front panel to remove the face
plate. The TEST jumper block is located between the
two alarm adjustment pots on the display. Using a small
jewelers screwdriver temporarily short the jumper posts
together. See Figure 2. All three alarm relays will be
energized and the three ALARM LEDs will turn ON.
NOTE: The Trouble relay is normally ener¬
gized if loop current is greater than 3mA and will remain
energized when the TEST jumper block is temporarily
shorted. Test the trouble relay by removing 4 m A input
or removing all system power.
Page: 7

Sierra Monitor Corporation
INSTRUCTION MANUAL
11 CALIBRATION
3.1.1 4-20mA Calibration
Calibration of the Model 4011 is only required
if the CONC display does not read 00.0 +/- 00.2 with a
4.00mA loop current or the display does not read 100.0
+/- 0.2 with a 20.00mA loop current. Turn power OFF
to unit Remove front panel by unscrewing the two
thumbscrews and removing the front section. Next
remove the screws in the top left and right comer of the
display board. Remove the display board with the
ribbon cables connected and be careful not to have any
part of the circuit board touch any metal surfaces. Turn
power ON to unit. Adjust R10-20K (OFFSET) poten¬
tiometer (see figure 3) for O.OOOv +/-0.001 v at TP 1 with
4.00mA loop current. The reading on the display when
set to CONC should be 00.0 +/- 00.2. Adjust R9-10K
(GAIN) potentiometer for l.OOOv +/- 0.001 v at TP2
with 20.000mA loop current. The reading on the
display when set to CONC should be 100.0 +/- 00.2.
4-20mA LOOP-
FUSE 1/4 AMP
LOOP CURRENT -
4mA = 0.400V
20mA = 2.00V
INPUT POWER
(14-30 V)
POWER SUPPLY
(—5.0V)
TROUBLE
5.0V = I LOOP > 3.0mA
O.OV = I LOOP < 3.0mA
ANALOG SIGNAL
"0 1/10
z n z
z n z
z n z o + >
> o
§ « §
o o o n o o o o o
OUT
12V
ND
^ 6
AOf-H
3ienoai|
l hlV
Z WIV
[iHH3 diS
13S3H
~^(n) ( ff^
TROUBLE
ALM 1
ALM 2
RELAY
RELAY RELAY
POWER SUPPLY
( + 5.0V)
DISPLAY SIGNAL
(0-1V)
5 AMP
FAST-ACTING FUSE
F2 = TROUBLE
F3 = ALARM 1
F4 = ALARM 2
REF 0.300V)
ALARM 2
5V — > ALARM LEVEL
OV - < ALARM LEVEL
ALARM 1
5V = > ALARM LEVEL
OV = < ALARM LEVEL
REFERENCE ( + 2.49V)
FIRST: APPLY 4mA LOOP CURRENT,
ADJUST RIO SO THAT TP1 = O.OOOV.
SECOND: APPLY 20mA LOOP CURRENT,
ADJUST R9 FOR 1.000V AT TP2.
FIGURE 4011
MODEL 4011 COMPONENT LOCATOR
Model Number: 4011 Single Channel 4-20 mA Controller
Page: 8