4003_5001_D02
Page 34 of 35
16.
As part of the routine maintenance schedule, the condition of the window cement shall be
periodically inspected for any degradation or dis-colouration of the cement that may
compromise the explosion protection.
17.
None of the flame paths present on the enclosure are intended to be repaired.
18.
Ambient temperature rating depends on temperature class, internal power dissipation,
remote sensor and application of the relay. Refer to the tables below.
Without intrinsic interface to relay
Temperature Class
Power Supply T6
T5
T4
External
supply
(1W)
-50 °C to +73 °C (NOTE 1
+78 °C)
-50 °C to +85 °C (NOTE 1
93 °C)
-50 °C to +85
°C
External
supply
(5W)
-50 °C to +70 °C
-50 °C to +85 °C
-50 °C to +85
°C
External
supply
(10W)
-50 °C to +60 °C
-50 °C to +75 °C
-50 °C to +85
°C
Alkaline
battery
(DURACELL, LR20)
-20 °C to +50 °C
-20 °C to +50 °C
-20 °C to +50
°C
Lithium battery
(SAFT, LS33600)
-40 °C to +73 °C
-40 °C to +80 °C
-40 °C to +80
°C
NiMH
battery
(ANSMANN, 8500)
-20 °C to +60 °C
-20 °C to +60 °C
-20 °C to +60
°C
With intrinsic interface to relay
Temperature Class
Power
Supply
T6
T5
T4
External
supply
(1W)
-40 °C to +73 °C (NOTE 1 78
°C)
-40 °C to +82 °C
-40 °C to +82
°C
External
supply
(5W)
-40 °C to +70 °C
-40 °C to +72 °C
-40 °C to +72
°C
External
supply
(10W)
-40 °C to +59 °C
-40 °C to +59 °C
-40 °C to +59
°C
Alkaline battery*
(DURACELL, LR20)
-20 °C to +50 °C
-20 °C to +50 °C
-20 °C to +50
°C
Lithium battery*
(SAFT, LS33600)
-40 °C to +73 °C (NOTE 1 78
°C)
-40 °C to +80 °C
-40 °C to +80
°C
NiMH
battery*
(ANSMANN, 8500)
-20 °C to +60 °C
-20 °C to +60 °C
-20 °C to +60
°C
NOTE 1: When batteries are fitted as back-up power in an externally-powered unit the ambient
temperature for the battery unit shall take precedence between the two ranges.
NOTE 2: * - When the sensor is placed inside of the flameproof enclosure.
When the unit is externally powered (no batteries fitted) the upper ambient temperature limit
can be interpolated based on power dissipation.
Содержание 4003 MAGSIG
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