4 Assumptions and restrictions for use of the product
4.1 Basic safety specifications
Operational temperature range................ -20...+60°C
Storage temperature range...................... -20...+85°C
Power supply type, min. .......................... Double or reinforced
Supply voltage ......................................... 19.2...31.2 VDC
External loop supply voltage ................... 5...26 VDC + external drop
Mounting area .......................................... Zone 2 / Division 2 or safe area
Mounting environment ............................. Pollution degree 2 or better
4.2 Safety accuracy
The analogue output corresponds to the applied input within the safety accuracy.
Safety accuracy ....................................... ±2%
4.2.1 Minimum span
For temperature measurements, the selected range (OUT.HI - OUT.LO)
shall be larger or equal to the values below:
4.2.2 Range limitations
TC type B shall not be used below +400°C
4.3 Associated equipment
4.3.1 RTD sensor wiring
If a 2-wire or a 3-wire connection for RTD is selected, the end user must
ensure that the applied sensor wiring does not introduce failures exceeding
the requirements for the safety application.
Input
type
Minimum span for safety
accuracy
Pt100, Pt200, Pt1000 28°C
Pt500, Ni100, Ni120, Ni1000 43°C
Pt50, Pt400, Ni50 57°C
Pt250, Pt300 85°C
Pt20 142°C
Pt10 283°C
TC: E, J, K, L, N, T, U 91°C
TC: B, R, S, W3, W5, LR 153°C
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