36
10. Warnings and Cautions
1. Intrinsic safe explosion system must request to use explosion proof model together with
safety barriers that complied with Ex ia. So that it can be used in hazardous area.
2. Casing material is Aluminum. Installation should make precaution to prevent burn by shock
or rub.
3. Please make precaution to avoid static and burn caused by non-metal material.
4. JTR connect with equipment in non-
hazardous area, should follow the user’s manual and
wire correctly.
5. Shielded cable should be used when connect with external equipment. Shields should be
well grounded.
6. Related components in the wiring circuit must reach requirements
of “Intrinsically safe
parameters”.
7.
Customer is not allowed to replace components by themselves. It’s requested to contact
manufacturer and solve problem together to avoid damage happened.
8. The relationship between ambient temperature and process temperature is as below
：
NEPSI
：
Temperature
catagories
Ambient
temperature (°C)
Medium(Process)
temperature (°C)
T4
-40~60
-40~130
T3
-40~60
-40~190
T2
-40~60
-40~230
ATEX / CSA / IECEx / TS
：
Temperature
catagories
Ambient
temperature (°C)
Medium(Process)
temperature (°C)
T6
-40~55
-40~85
T5
-40~70
-40~100
T4
-40~70
-40~135
T3
-40~70
-40~150
T2
-40~70
-40~230
※
Actual temperature resistance refers to the latest catalogue and comply with the
explosive proof certificate and standards.
9. The product ins
tallation, use and maintenance shall follow the user’s manual and the
following standards
：
GB3836.13 (IEC 60079-
19) “Electric Apparatus for Explosive Gas Atmospheres Part
13
：
Equipment repair, overhaul and reclamation”.
GB3836.15 (IEC 60079-
14) “Electric Apparatus for Explosive Gas Atmospheres Part
15
：
Electrical installations design, selection and erection (Except for Coal Mine)”.
GB3836.16 (IEC 60079-
17) “Electric Apparatus for Explosive Gas Atmospheres Part
16
：
Electrical installations inspection and mai
ntenance (Except for Coal Mine)”.
GB3836.18 (IEC 60079-
25) “Electric Apparatus for Explosive Gas Atmospheres Part
18
：
Intrinsically safe electrical systems”.
GB50257 “Electric Equipment Installation Engineering Code for Construction and
Acceptance of Electr
ic Device within Explosion and Fire Hazard Environments”
Summary of Contents for JTR
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