5
D1062
- Vibration Transducer Interface
G.M. International ISM0094-7
When used with separate powered intrinsically safe devices, check that maximum allowable voltage, current (Ui/Vmax, li/Imax) of the D1062 Associated Apparatus are not exceeded by
the safety parameters (Uo/Voc, Io/Isc) of the Intrinsically Safe device, indicated in the table below:
For installations in which both the Ci and Li of the Intrinsically Safe apparatus exceed 1 % of the Co and Lo parameters of the Associated Apparatus (excluding the cable),
then 50 % of Co and Lo parameters are applicable and shall not be exceeded
(50 % of the Co and Lo become the limits which must include the cable such that
Ci C cable
≤
50 % of Co and Li L cable
≤
50 % of Lo).
If the cable parameters are unknown, the following value may be used: Capacitance 60pF per foot (180pF per meter), Inductance 0.20µH per foot (0.60µH per meter).
The Intrinsic Safety Entity Concept allows the interconnection of Intrinsically Safe devices approved with entity parameters not specifically examined in combination as a system
when the above conditions are respected.
For Division 1 and Zone 0 installations, the configuration of Intrinsically Safe Equipment must be FM approved under Entity Concept (or third party approved);
for Division 2 installations, the configuration of Intrinsically Safe Equipment must be FM approved under non-incendive field wiring or Entity Concept (or third party approved).
Must
be
Hazardous Area/
Hazardous Locations
Device Parameters
D1062 Associated
Apparatus Parameters
Ui / Vmax = 30V
Uo / Voc
D1062 Terminals
15 - 16
≥
Ci = 0 nF, Li= 0 nH
15 - 16
Function Diagram
HAZARDOUS AREA ZONE 0 (ZONE 20) GROUP IIC,
HAZARDOUS LOCATIONS CLASS I, DIVISION 1, GROUPS A, B, C, D,
CLASS II, DIVISION 1, GROUPS E, F, G, CLASS III, DIVISION 1,
CLASS I, ZONE 0, GROUP IIC
SAFE AREA, ZONE 2 GROUP IIC T4,
NON HAZARDOUS LOCATIONS, CLASS I, DIVISION 2,
GROUPS A, B, C, D T-Code T4, CLASS I, ZONE 2, GROUP IIC T4
MODEL D1062S
15
16
3 +
4 - Supply 24 Vdc
=
=
14
13
Out 1
11
12
10
9
1
2
In 1
- Power
3 wires
Vibration
Transducer
- Signal
Common
Signal -
Common
Vibration
Monitor
Programmable
Current
Source
=
=
=
Ch1
Ch1
