Metal Samples MS2700E, Руководство оператора

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7
c. Safe Area Installation
The MS2700E transmitter is approved for use in hazardous areas, but can be used in non ‐ hazardous
areas as well. For basic safe area wiring information refer to the circuit diagram shown on page 21.
CAUTION:
When used in non ‐ hazardous areas, equipment must be supplied with a pre ‐ approved power
supply unit or approved equipment which meets the entity parameters shown below.
The pre ‐ approved equipment must be certified to the electrical safety standards for equipment in
ordinary locations (for example, EN/IEC/CSA UL 61010 ‐ 1 or EN/IEC/CSA UL 60950 ‐ 1). Failure to meet
these requirements will void the intrinsic safety certification of the equipment and prohibit its future
use in hazardous areas.
d. Hazardous Area Installation
CAUTION:
This section provides general guidelines for hazardous area wiring. However, regardless of
anything stated here, the MS2700E transmitter must be installed in full compliance with the control
drawing located on page 20 and all of the local area requirements.
CAUTION:
When used in Hazardous areas, equipment must be supplied with a pre ‐ approved power
supply unit or approved equipment via a certified intrinsically safe barrier or a galvanically isolated
barrier) with the following entity parameters .
Input supply terminal, RS-485 channel
and connector CN2 (Combined)
Connector CN1 pins A & B (J2 on PCB):
Ci = 68uF Ui = 23 Vdc
Li = 0 Ii = 88.2 mA
Co = 32uF Pi = 0.52 W
Lo = 0.14 mH Ci = 0
Li = 0
RS-485 channel at each line
Connector CN1 pins D & E (J9 on PCB):
Ui = 3.7 Vdc
Ii = 225 mA
Pi = 0.206 W
U
o
= 5 V
I
o
= 51 mA
P
o
= 0.064W
Probe connector CN2 (J1 on PCB):
U
o
= 5 V
I
o
= 503 mA
P
o
= 0.7 W
Special Conditions
1. Probe dielectric rating < 500V r.m.s. Do not exceed.
2. Probe cannot be installed in the explosion dust atmosphere (Group III).
3. Networked (“daisy ‐ chained”) arrangement not for use in Group IIC/IIIC environment.
4. Maximum 32 transmitters are allowed in the daisy ‐ chain arrangement.