Chenzhu GS8500 EX Series User manual

GS8593-EX.3
GYB15.1676
CZ.GS8593-EX.Y.11(S)E-3.4/19.01
5
4
1
2
3
3
2
1
XK06-014-00557
Connections
(1) This barrier adopts knock-down connector with screw terminals. The
intrinsically safe (IS for short) terminals (blue plugs) should be
connected to hazardous area devices and the non-IS ones (green plugs)
to the safe area devices;
(2). Blue-marked wires should be chosen for hazardous area, which
2
minimum cross section area should be 0.5 mm ,and minimum dielectric
strength should be 500V;
(3). Wiring between safe area and hazardous area must be separated,
and both have protection bushes;
(4). Wires with 8mm-long bared part should be fixed by M3 bolts. See as
shown below.
.
Installation
The isolated barrier should be located in safe area, according to the
related requirements in IEC60079-17(EN60079-17) and IEC60079-
19(EN60079-19).
GS8500-EX series isolated barrier are designed for mounting on
35mm DIN guide rail. Install with the following steps:
(1). First, lock bus-powered outlet into guide rail; (If no bus-powered
function, skip this step)
(2). Lock the upside of the barrier into guide rail;
(3). Push the downside of the barrier into rail.
Disassembly
(1). Insert a screwdriver (tip-size≤6mm) into the metal lock on the
bottom of barrier;
(2). Push the screwdriver upwards, then prize the metal lock downwards;
(3). Take the barrier out of guide rail.
(1). Before using the barrier, please check again whether Ex-proof rating
of module is in accord with operating conditions, and wiring and polarity
are correct;
(2). It is unallowed to test insulativity among terminals with a
megameter. If necessary, wires must be cut off before test, or the
internal fuse will blow;
(3). Every product has been tested strictly before leaving factory. If users
find any abnormality in the module, please contact the nearest agent or
our company;
(4). In 5 years from delivery date, if the product works improperly during
normal operation, we will repair or replace it without payment.
Non-intrinsically safe terminals Intrinsically safe terminals
Maintenance
Isolated Barrier
User Manual
Caution
Please check whether the product type on package and label
is in accord with ordering contract;
Read this manual carefully before installation or use. If there is
something unclear, please dial technic support hotline-400 881 0780;
Isolated barrier should be located in safe area;
Supply voltage is 24VDC. 220VAC is forbidden;
Users are not allowed to dismantle or repair the barrier, otherwise
it will induce malfunction.
Please read user manual carefully before using the product, and please
keep it safe.
M3
8.0
YEAR
YEAR
WARRANTY
WARRANTY
Add: Building 6, 201 Minyi Road, Caohejing Hi-Tech Park
Songjiang New Industrial Park, Shanghai 201612, P.R. China
Tel : [phone] Fax : [phone]
Email：[e-mail]

National Supervision and Inspection Center for Explosion Protection and
Safety of Instrumentation(NEPSI)
Compliancy with standard: GB3836.1, GB3836.4, GB3836.20
Ex-marking: [Ex ia Ga] ⅡC
Maximum voltage: Um=250V
Intrinsic safety parameter: (9,10 terminals)
Uo=6.6V, Io=65mA, Po=110mW
ⅡC: Co=22μF, Lo=8mH
ⅡB: Co=500μF, Lo=24mH
ⅡA: Co=1000μF, Lo=64mH
(12,13 terminals)
Uo=23.1V, Io=187mA, Po=1.08W
ⅡC: Co=0.1μF, Lo=0.8mH
ⅡB: Co=1.0μF, Lo=2.4mH
ⅡA: Co=3.6μF, Lo=6.4mH
Largest external capacitance (Co) and inductance (Lo) numerical attention in
following conditions:
(1). For circuits containing distributed inductance and capacitance (as in a
cable), Co and Lo are largest permitted values of external capacitance and
inductance;
(2). For circuits combined with cables, when intrinsically safe circuit contains
less than 1% more permitted inductance and capacitance, Co and Lo are
largest permitted values of capacitance and inductance;
(3). For circuits combined with inductors and capacitors, when intrinsically
safe circuit contains more than 1% more permitted inductance and
capacitance (cables excluded), permitted values of capacitance and
inductance should be 50% of mentioned Co and Lo.
Application
Dimensions
118.9mm×106.0mm×17.5mm
1 2 3
Safe-area
Hazardous-area
Summarize Operation Conditions
Specification
Isolated barriers transfer two-way RS-485 digital signal between
hazardous area and safe area, and provide isolated DC power for field
instruments. The product needs independent power supply, input, output
and power supply isolated galvanically.
(1). Any medium corrupting the cladding made up with chrome, nickel and
silver should not exist in atmosphere. Moreover, turbulence, impact or any
cause of electromagnetic induction (such as big current or spark, etc.) must
be avoided during use.
(2). Operating temperature: -20℃~+60℃
(3). Storage temperature: -40℃~+80℃
(4). Relative humidity: 10%~90%
Intrinsic safety explosion protection loop system
Special requirements have to be confirmed before using the intrinsically
safe explosion protection loop system (intrinsically safe circuit), which is
connected by isolated barrier and intrinsically safe apparatus in field:
(1). The explosion protection level of intrinsically safe apparatus should
meet requirements of operating conditions. The apparatus should pass
explosion protection test and get certificates from state-authorized
explosion protection product certification organizations;
(2). The intrinsic safety parameters of isolated barrier and intrinsically safe
apparatus are both ensured, and comply with 12.2.5 of GB 3836.15-2000;
(3). If any parameter is unclear, the system has to be confirmed by state-
authorized explosion protection product certification organizations.
Safety Certificates
T/RxA
T/RxB
-
+
2(-)
1(+)
-+
12(+)
13(-)
T/RxB
RS-485
7(T/RxB)
9 ( )T/RxA
10( )T/RxB
DCS、PLC
Available
Voltage
RS-485
Power supply
GS8593-EX.3
Power supply
Number of channels: 1
Supply voltage: 20~35V DC
Current consumption:
≤120mA (24V DC supply, 8V/9V/12V, 50mA power distribution)
≤160mA (24V DC supply, 5V/6V, 100mA power distribution)
Safe-area output:
Signal: RS-485 digital signal
Signal level rules: standard RS-485 differential level
Transmission delay: ≤10us
Signal transmission rate: ≤56kbps
Transmission control mode: Half duplex
Hazardous-area input:
Signal: RS-485 digital signal
Signal level rules: standard RS-485 difference level
Drive ability: Can take up to 32 transceivers
Power distribution: 5V/100mA, 6v/100mA, 8V/50mA, 9V/50mA,
12V/50mA
Distribution voltage error: ±10%
Switch settings:
Power supply protection: Protect the barrier from reverse supply voltage
destroy.
Electromagnetic compatibility: According to IEC 61326-1(GB/T 18268)
Dielectric strength:
Between non-intrinsically safe part and intrinsically safe part≥2500VAC
Between power supply part and non-intrinsically safe part≥500VAC
Insulation resistance:
Between non-intrinsically safe part and intrinsically safe part≥100MΩ
Between power supply part and non-intrinsically safe part≥100MΩ
Weight: Approx.150g
Suitable location: Mounted in safe area, and connected with IS apparatus in
Zone 0/1/2, ⅡC, ⅡB, ⅡA, T4~T6 hazardous area.
Suitable IS apparatus:
With RS-485/RS-422 communication interface device
T/RxA
6(T/RxA)
K2 K4
12V,50mA
ON
OFF
K1
P o w e r K3
9V,50mA
8V,50mA
6V,100mA
5V,100mA ON O N ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OF F OFF
OF F OFF
OF F OFF