Chenzhu GS8512-EX.12 User manual

GS8512-EX.12
GYB20.1589
CZ.GS8512-EX.12.11(S)E-6.0/20.01
Isolated Barrier
User Manual
YEAR
YEAR
WARRANTY
WARRANTY
Installation
5
4
1
2
3
3
2
1
(1)
(2)
(3)
(4)
This barrier adopts a pluggable connector with screw terminals.
The intrinsically safe(IS) terminals (blue plugs) should be connected
to hazardous area devices and the non-IS ones (green plugs) to the
safe area devices.
Choose for the hazardous area the blue-marked wires. Its
2
minimum cross-section area should be 0.5mm , and the minimum
dielectric strength should be 500V.
The wirings in the safe area and the hazardous area must be
separated, and both have protection bushes.
A length of 7mm bared wire is locked by the M3 bolt. See as shown
below.
The isolated barrier should be installed in the safe area, according
to the related requirements in
The isolated barrier is designed for mounting on 35mm DIN rail.
Installation procedure:
(1) Clamp the bus connector on the rail;
(If no bus-powered function, omit this step);
(2) Hook the backplane of the barrier into the top of the rail;
(3) Press downward.
GB 3836.13-2013, GB/T 3836.15-2017,
GB/T 3836.16-2017, GB/T 3836.18-2017, GB 15577-2018 and GB 50257-
2014.
(1) Insert a screwdriver (its edge length≤6mm)into the downside
metal lock of the barrier;
(2) Push the screwdriver upwards, then prize the metal lock
downwards;
(3) Take the barrier out of the rail.
(1) Before using, please check again whether the product's model and
Ex-proof rating are consistent with the operation conditions; whether
the wiring and polarity are correct.
(2) It is disallowable to test the insulation among the terminals with a
megameter. The wiring must be disconnected before testing the
insulation of the system, otherwise the internal fuse would blow.
(3) Every product has been strictly tested before leaving factory. If
product does not work properly, please contact the nearest agent or
technic support hotline.
(4) In 5 years from the 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
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]
http://www.chenzhu-inst.com
Maintenance
Disassembly
Connections
M3
7.0
Caution
Please check whether the product type on the package accords to the
ordering contract;
Read this manual carefully before installation or use. If there is something
unclear, please contact technical support;
Isolated barrier should be installed in the safe area;
Supply voltage is 24VDC, 220VAC is forbidden;
It is strictly forbidden to disassemble the barrier to prevent from failing
or malfunction.
Please read the user manual carefully before using the product, and
please keep it properly for further reference.

Certifying authority: NEPSI(China)
Conformity standards: GB3836.1, GB3836.4, GB3836.20, GB12476.1
and GB12476.4
Ex marking: [Ex ia Ga]ⅡC , [Ex iaD]
Maximum voltage: Um=250V
Intrinsic safety parameters: (7, 8 terminals)
Uo=10.5V, Io=14mA , Po=37mW
ⅡC: Co=2.4μF , Lo=165mH
*ⅡB: Co=16.8μF , Lo=495mH
ⅡA: Co=75μF , Lo=1000mH
Note: *ⅡB parameters are also applicable for combustible dust
atmospheres.
(1) For circuits only containing distributed capacitance and distributed
inductance, e.g. cable, allow the values of Co and Lo in accordance with
the allowed values in the certification parameters;
(2) For circuit combined with IS circuit and cables, if the inductance or
capacitance of IS circuit are no greater than 1% of the respective
parameters, then the permissible maximum external output parameters
of capacitance and inductance in accordance with the allowed values in
the certification parameters;
(3) For circuit combined with inductance and capacitance, if both
parameters are greater than 1% of the output parameters (excluding
cables), then the permissible maximum external output parameters of
capacitance and inductance should be 50% of the allowed values in the
certification parameters.
When using the values of maximum external capacitance (Co) and
inductance (Lo), please attend the following requirements:
Application
Dimensions
118.9mm×106.0mm×12.5mm
Note: Bus-powered function is optional.
1 2 3
Safe-area
Hazardous-area
Number of channels: 1/2
Supply voltage: 20~35V DC
Current consumption: ≤40mA(at 24Vdc supply, output relay energized)
Safe-area relay output:
Response time: ≤10ms
Contact loading: 250V AC, 2A or 30V DC, 2A
Load type: resistive load
Hazardous-area input:
Signal: dry contact or NAMUR Proximity Detector
Open Circuit Voltage≈8V
Short Circuit Current≈8mA
Input and output characteristics (K1~K4 are separately set to ON, ON,
OFF, OFF state):
:
Note: 1) K2~K4 are separately set to ON, OFF, OFF.
2) Dy contact switch inputs need to connect according to the
way of Switch ( ).
Power supply protection: Power supply reverse protection
EMC: According to IEC - /
Dielectric strength:
Between non-IS part and IS part≥2500VAC
Between power supply part and output part≥500VAC
Insulation resistance:
Between non-IS part and IS part≥100MΩ
Between power supply part and output part≥100MΩ
Weight: Approx.100g
Suitable location: Mounting in safe area, and connected to the IS
apparatus in hazardous area up to zone 0 IIC and zone 20 IIIC.
Suitable field apparatus:
Dry contact or DIN19234 standard NAMUR proximity switch input field
devices(including the intrinsically safe type pressure switch,
temperature switches, liquid level switch).
Function of the DIP Switch
Ⅱ
61326 1(GB T 18268)
IN OUT
Intrinsic Safety Certification
Specification
Intrinsic Safety Explosion Protection System
Switch
( )Ⅱ
Proximity
switch
Power supply
Power bus
6
5
8 (-)
7 (+)
2(-)
1(+)
7
8
4
3
OUT
LFD
-+
680Ω
22kΩ
GS8512-EX.12
Input signal
Input＞2.1mA
Input＜1.2mA
Input breakage
Input short-circuits
Output relay LFD relay Sta.
OFF
ON
OFF
OFF
ON Yellow LED OFF
ON
OFF
Yellow LED ON
OFF
Red LED ON
Red LED ON
Function
ON
OFF
K1
Inverted Phase
Normal Phase
115.1mm
118.9mm
12.5mm
99mm
Summarize Ambient Conditions
Digital input, relay output isolated barrier, transfers digital signals (dry
contact or NAMUR proximity switch) from hazardous area to safe area.
The output can be provided to select phase reversal and to enable the
line fault detection. The product needs an independent power supply
and galvanic isolation among power supply, input and output.
(1)There should be no following substances in the air: flammable and
explosive substances; medium that could corrupt the coat of chrome,
nickel and silver. Moreover, please avoid using this product in violent
quiver，impact or strong electromagnetic interference environment.
(2) Operating temperature: -20℃~+60℃
(3) Storage temperature: -40℃~+80℃
(4) Relative humidity: 10%~90%
Special requirements have to be confirmed before using the intrinsically
safety explosion protection system(intrinsically circuit) which connected
by isolated barrier and intrinsically safe apparatus in field:
(1) The EX-proof level of intrinsically safe apparatus should meet the
requirements of operation conditions. The apparatus should pass the
explosion protection test and get the certificate by authorized explosion-
proof product certification bodies.
(2) The intrinsic safety parameters of isolated barrier and intrinsically
safe apparatus both are clear, and comply with GB/T 3836.15.
(3) If any parameters are unclear, the system has to be confirmed by
authorized explosion-proof product certification bodies.