This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed and found to comply with the IECEx Quality system requirements. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended.
This Unit verification certificate is issued as verification that the Apparatus identified on page 1, was assessed and tested and found to comply with the IEC Standard list below. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended.
The electrical apparatus and any acceptable variations to it specified in the schedule of this certificate and the identified documents, was found to comply with the following standards:
As this is a Unit Verification Certificate, no QAR is applicable as this certificate is specific to the items listed by serial number or other unique identification.
(terminals 14 and 15
resp. PR1 and PR2)
direct voltage U = 20 V – 30 V ; approx. 1,26 W
maximum voltage U m = 40 V
Signal circuit error-output
(PR4 and PR2)
for connection to a signal circuit only
(terminals 7 and 8, 9 and 8,
10 and 11, 12 and 11)
per 230 VAC + 10%, 3 A, S max = 100 VA, cos φ > 0,7 resp.
per 40 VDC, 2 A
in type of protection “Intrinsic Safety” Ex ia IIC /IIB resp. Ex ib IIC /IIB
go conductor (+)
return conductor (-)
maximum values per circuit
U o = 10 V
I o = 14 mA
P o = 35 mW
The effective internal capacitance and inductance are negligibly small.
The maximum permissible values for the external capacitance and inductance are given in the following table:
Ex ia/ib IIC
Ex ia/ib IIB
With the existence of lumped capacitances and/or inductances in the intrinsically safe input circuit, the maximum permissible external capacitances and inductances for circuits of category “ia” are to be taken from the following table:
Ex ia IIC
Ex ia IIB
The intrinsically safe input circuits are safely electrically isolated from the supply circuit, signal error output circuit and the relay output circuit up to a peak value of the nominal voltage of 375 V.
The device is assessed of meeting the requirements for group I.