Masibus 8208 User manual

8-CHANNEL SCANNER-8208
REF NO: m82A/om/101 masibus
Issue NO: 08
User‟s Manual Page 1 of 42
M
Mo od de el l 8 82 20 08 8
U
Us se er r’ ’s s M Ma an nu ua al l 8 8- -C Ch ha an nn ne el l S Sc ca an nn ne er r
Masibus Automation & Instrumentation Pvt. Ltd.
B/30, GIDC Electronics Estate,
Sector-25, Gandhinagar-382044, Gujarat, India
Email: [email protected]
Web: www.masibus.com

8-CHANNEL SCANNER-8208
REF NO: m82A/om/101 masibus
Issue NO: 08
User‟s Manual Page 2 of 42
Contents
(1) Introduction (03)
(2) Installation (05)
(3) Hardware Specification Detail (08)
(4) Front and Back Panel Description (11)
(5) Key Function Description (14)
(6) Menu Layout (15)
(7) Relay/OC Outputs (22)
(8) Calibration Procedure (27)
(9) Modbus Communication Detail (29)
(10) Miscellaneous (36)

8-CHANNEL SCANNER-8208
REF NO: m82A/om/101 masibus
Issue NO: 08
User‟s Manual Page 3 of 42
1. INTRODUCTION:
Forewo rd
Thank you for pur chasing 8 208 un iver sal Scann er . This manual
desc ribes th e basic functi on s and op erati on method s of 8208. Please
read through this user‟s manual carefully before using the product.
Notic e
The cont ents of thi s manual are subj ect to ch ange wi thout noti ce as a
resul t of conti nuin g improve ments t o the ins trument‟s performance and
functi ons
Every effort has been made to ensure accuracy in the preparation of this
manual. Should any errors or omissions come to your attention, however, please
inform MASIBUS Sales office or sales representative. Under no circumstances may
the contents of this manual, in part or in whole, be transcribed or copied without our
permission.
Trademarks
Our product names or brand names mentioned in this manual are the
trademarks or registered trademarks of Masibus Automation and Instrumentation (P)
Ltd. (herein after referred to as MASIBUS).
Adobe, Acrobat, and Postscript are either registered trademarks or trademarks of
Adobe Systems Incorporated. All other product names mentioned in this user's
manual are trademarks or registered trademarks of their respective companies.
Revis ion
1st Edition: July 2010.

8-CHANNEL SCANNER-8208
REF NO: m82A/om/101 masibus
Issue NO: 08
User‟s Manual Page 4 of 42
Checki ng the Conten ts of the P ackag e
Unpack th e box and ch eck the content s befor e using th e
product . If the pr oduct i s diff erent from th at whi c h you have order ed,
if any part s or a cces sories a re mis sing, or if t he p roduct appea rs to b e
damag ed, c ontact your sal es rep resentati ve .
Product Ordering Code:
The 8208 Scanner unit has a nameplate affixed to the one side of the
enclosure. Check the model and suffix codes inscribed on the nameplate to confirm
that the product received is that which was ordered.
Model
Suffix code
Optional code
Remarks
List of Accessories
The product is provided with the following accessories according to the model
and suffix codes (see the table below). Check that none of them are missing or
damaged.
No
Item
name
Part
number
Qty
Remarks

8-CHANNEL SCANNER-8208
REF NO: m82A/om/101 masibus
Issue NO: 08
User‟s Manual Page 5 of 42
2. INSTALLATION:
How to Install:
Mounting method: Panel mounting
To install the controller select a location where:
ono one may accidentally touch the terminals
omechanical vibrations are minimal
ocorrosive gas is minimal
otemperature can be maintained at about 25˚C to 35˚C and the
fluctuation is minimal
ono direct radiant heat is present
ono magnetic disturbances are caused
ono wind blows against the terminal board
ono water splashed
ono flammable materials are around
Turn off the power to the controller before installing it on the
panel because there is a possibility of electric shock

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REF NO: m82A/om/101 masibus
Issue NO: 08
User‟s Manual Page 6 of 42
External Dimensions and Panel Cutout Dimensions:
Unit: mm

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REF NO: m82A/om/101 masibus
Issue NO: 08
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How to connect wires:
Before carrying out wiring, turn off the power to the
controller and check that the cables to be connected are not alive with
a tester or the like because there is a possibility of electric shock.
NOTE:
oAll wiring must confirm to appropriate standards of good practice and
local codes and regulations. Wiring must be suitable for Voltage,
Current and temperature rating of the system.
oProvide power from a single-phase instrument power supply. If there
is a lot of noise in the power line, insert an insulating transformer into
the primary side of the line and use a line filter on the secondary side.
Do not place the primary and secondary power cables close to each
other.
oFor thermocouple input, use shielded compensating lead wires for
wiring. For RTD input, use shielded wires that have low conductor
resistance and cause no significant differences in resistance between
the three wires. Do not connect Terminal NO –13,
16,19,22,37,40,43,46 when thermocouple or linear input is selected.
oUse repeater after each set of 32 instruments connected in RS-485
Communication.
oUnused terminals should not be used as jumper points as they may be
internally connected, which may cause damage to the unit.
CAUTION:
High voltage transients may occur when switching inductive loads such
as some contactors or solenoid valves. Through the internal contacts,
these transients may introduce disturbances which could affect the
performance of the instrument.
For this type of load it is highly recommended that a “sunbber” is
connected across the normally open contact of the relay switching
though load. The sunbber recommended consists of a series connected
resistor/capacitor (typically 15nF/100 Ohms). A sunbber will also
prolong the life of the relay contacts. A sunbber should also be
connected across the output of a tric output to prevent false triggering
under line transient conditions

8-CHANNEL SCANNER-8208
REF NO: m82A/om/101 masibus
Issue NO: 08
User‟s Manual Page 8 of 42
3. Hardware Specification Detail:
Input type: Universal input type
Thermocouple, RTD, Millivolt, Voltage, Current INPUT types are software selectable.
Applicable Standards: DIN (ITS-90) for Thermocouple and RTD
Type
Rang e
Accur acy
Resol ution
E
-200 t o 1000 C
+0.1% of instrument range
+ 1 digit for temperature
equal to or higher than 0º C
+ 0.25% of instrument
range + 1 digit for
temperature
below 0º C
+0.25% of instrument range
+ 1 digit(B,R,S TYPE TC)
0.1C
(1C B,R,S
TYPE TC)
J
-200 t o 1200 C
K
-200 t o 1370 C
T
-200 t o 400C
B
450 t o 1800C
R
0 to 17 50C
S
0 to 17 50C
N
-200 to 1300° C
RTD
-199.9 to
850.0 C
+ 0 .1% of instrum ent
rang e + 1 digi t
0 t o 75mV
-1999 to 9999
+ 0.1% o f rang e + 1
digi t
1 C ount
0 t o 100mv
0.4 to 2V
0 t o 2V
0-20 mA*
4-20 mA*
0 t o 5V
1 t o 5V
0 t o 10V
-10 to
20mV
*For DC current input, 100 Ohms (0.1%, 25 ppm) shunt resistor must be connected
externally. For DC current and Voltage input, Scaling is possible and decimal point is
selectable.
Sampling Period: 100mSec for TC and Linear Input, 200mSec for RTD Input.
Resolution: 17-bit
Burnout detection: Functions for TC, RTD, linear input signal. (It detects whether
sensor is connected or not) ALL Relay output can be selected for Burnout Condition.
i.e. Open sensor Up scale or Down Scale
Measurement current (RTD): 1milli Ampere

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Input Impedance: >1 Mohm for thermocouple/ mV/RTD/Volts inputs & 100
ohms for mAmp input.
Noise Rejection Ratio:
NMRR (Normal mode rejection ratio) > 40 dB (50/60 Hz) or more
CMRR (Common mode rejection ratio) > 120 dB (50/60 Hz) or more
Allowable wiring resistance for RTD: Maximum 15 ohms/wire (Conductor
resistance between three wires should be equal).
Retransmission Output:
Number of outputs: 1
Process Value, Set point, or Control output can be selected as a Retransmission
output.
Output signal: 0-20 mA, 4-20 mA, 0-5 V, 1-5 V or 0-10 V DC.
Voltage or current output can be selected through software and internal jumper
settings.
Load resistance: 500 ohms Max. Or less for current output. 3k or higher for voltage
output
Output accuracy: ±0.25% of Range
Relay Contact Outputs:
Number of outputs: 4
Output signal: Three terminals (NC, NO, and C)
Relay Contact rating: 250 V AC or 30 V DC, 2A (resistive load)
Operating/release time: <10 ms
Digital Contact Outputs:
Number of outputs: 8
Output Type: Open Collector
Output Contact rating: 24 V DC, 50mA (with inbuilt current limit protection)
Communication:
Communication Type: Half duplex/Asynchronous (RS-485)
Communication Protocol: MODBUS RTU
Baud rate, Parity and Stop bit are selectable form the key board.
All parameters are Configurable through MODBUS.
Connectable number of unit: 32
Communication error Detection: CRC Check
Display Specifications:
PV display: 4-digits, 7-segment, Red LEDs, character height of 0.56‟‟
Channel No. Display: 2-digits, 7-segment, Green LEDs, character height of 0.56‟
Relay Group Display: 1-digits, 7-segment, Red LEDs, character height of 0.56‟
Statu s indi cating l amps: 16-Red LEDs for Alarms status, 4-Red LEDs for Relay
status, 1-Red LED Manual mode status, 1-Red LED Fault status, 2-Green LEDS for
Communication.
Power Supply Specifications:
Power supply: Rated AC voltage of 85 to 260V AC at 50/60 Hz ( Rated Dc voltage
100 to 300VDC) / Rated voltage of 18 to 36V DC (Optional),

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Issue NO: 08
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Power consumption: Max. 15 VA
Data backup: Non-volatile memory (can be written up to 100000 times)
Withstanding Voltage:
Between primary terminals* and secondary terminals** at
least 1500VAC for 1 minute
Between secondary terminals at least 600V AC for 1 minute
Insulation resistance: 20Mohms or more at 500V DC
*Prima ry termi nals i ndicat e powe r termin als and r elay out put t ermi nals
** Secon dary te rminal s indi cate anal og I/O si gnals, vol tage pul se
output , Conta ct input t erminal s , Rem ote input , RS 485 .
Signal Isolations Specifications:
PV input terminals(8 Channel input): Isolated from other input/output terminals.
Retransmission output terminals (voltage/current): Not isolated from current or
voltage outputs Isolated from other input/output terminals and internal circuit.
Relay contact control output terminals: Isolated between contact output terminals
and from other Input/output terminals and internal circuit.
Digital contact control output terminals: Isolated from other Input/output terminals
and internal circuit.
RS-485 Communication terminals: Isolated from other input/output terminals and
internal circuit
Power terminals: Isolated from other input/output terminals and internal circuit.
Construction, Installation, and Wiring:
Construction: Only the front panel is dust-proof
Material: ABS resin and Polycarbonate
Case color: Black
Weight: About 0.5 kg or less
Dimensions: 96 (W) x 96 (H) x 110 (depth from panel face) mm.
Installation: Panel-mounting type. With
Panel cutout dimensions: 92.5 + 0.8(W) x 92.5 + 0.8(H) mm
Environmental Conditions:
TEMPCO: FOR PV (Main input) less than 100ppm. FOR Retransmission less than
150ppm.
Humidity: 30% to 95% RH (Non-Condensing)
Instrument Warm-up Time: 30 minutes after power on
Ambient temperature: 0 to 55°C