6
D1010-054 / 056 / 057
- mV to mA Converter
G.M. International ISM0098-8
Operation
D1010-054, D1010-056, D1010-057 convert a mV signal from sensors located in Hazardous Area into a 4-20 mA current signal floating output to drive a Safe Area load.
The circuit has a fast response time compared to microprocessor based unit and this allows the use of this module in applications with input variable signal changing quickly.
The circuit has also a fast burnout detection of input signal forcing to upscale the analog output. A “POWER ON” green led lits when input power is present.
D1010-054 is suitable to convert a -5 to +55 mV input signal to a 4 to 20 mA output.
D1010-056 is suitable to convert a -5 to +35 mV input signal to a 4 to 20 mA output.
D1010-054 is suitable to convert a -5 to +10 mV input signal to a 4 to 20 mA output.
Installation
D1010-054, D1010-056, D1010-057 are mV to mA Converter housed in a plastic enclosure suitable for installation on T35 DIN Rail according to EN50022.
D1010-05* unit can be mounted with any orientation over the entire ambient temperature range, see section “Installation in Cabinet” and "Installation of Electronic Equipments in Cabinet"
Instruction Manual D1000 series for detailed instructions.
Electrical connection of conductors up to 2.5 mm² are accommodated by polarized plug-in removable screw terminal blocks which can be plugged in/out into a powered unit
without suffering or causing any damage
(for Zone 2 installations check the area to be nonhazardous before servicing)
.
The wiring cables have to be proportionate in base to the current and the length of the cable.
On the section “Function Diagram” and enclosure side a block diagram identifies all connections and configuration DIP switches.
Identify the function and location of each connection terminal using the wiring diagram on the corresponding section, as an example:
Connect 24 Vdc power supply positive at terminal “3” and negative at terminal “4”.
Connect positive output (mA source mode) at terminal “1” and negative output at “2”.
For separately powered Transmitters or thermocouple connect input signal at terminal “15” for positive and “16” for negative.
Intrinsically Safe conductors must be identified and segregated from non I.S. and wired in accordance to the relevant national/international installation standards
(e.g. EN/IEC60079-14 Electrical apparatus for explosive gas atmospheres - Part 14: Electrical installations in hazardous areas (other than mines), BS 5345 Pt4, VDE 165,
ANSI/ISA RP12.06.01 Installation of Intrinsically Safe System for Hazardous (Classified) Locations, National Electrical Code NEC ANSI/NFPA 70 Section 504 and 505,
Canadian Electrical Code CEC), make sure that conductors are well isolated from each other and do not produce any unintentional connection.
The enclosure provides, according to EN60529, an IP20 minimum degree of mechanical protection (or similar to NEMA Standard 250 type 1) for indoor installation, outdoor installation
requires an additional enclosure with higher degree of protection (i.e. IP54 to IP65 or NEMA type 12-13) consistent with the effective operating environment of the specific installation.
Units must be protected against dirt, dust, extreme mechanical (e.g. vibration, impact and shock) and thermal stress, and casual contacts.
If enclosure needs to be cleaned use only a cloth lightly moistened by a mixture of detergent in water.
Electrostatic Hazard: to avoid electrostatic hazard, the enclosure of D1010-05* must be cleaned only with a damp or antistatic cloth.
Any penetration of cleaning liquid must be avoided to prevent damage to the unit. Any unauthorized card modification must be avoided.
According to EN61010, D1010-05* series must be connected to SELV or SELV-E supplies.
D1010-054, D1010-056, D1010-057 are isolated Intrinsically Safe Associated Apparatus installed into standard EN50022 T35 DIN Rail located in Safe Area or Zone 2, Group IIC,
Temperature Classification T4 Hazardous Area (according to EN/IEC60079-15) within the specified operating temperature limits Tamb -20 to +60 °C, and connected to equipment
with a maximum limit for AC power supply Um of 250 Vrms.
For installation of the unit in a Zone 2 location, the wiring between the control equipment and the D1010-05* associated apparatus shall be accomplished via conduit connections or
another acceptable Zone 2 wiring method.
Not to be connected to control equipment that uses or generates more than 250 Vrms or Vdc with respect to earth ground.
D1010-054, D1010-056, D1010-057 must be installed, operated and maintained only by qualified personnel, in accordance to the relevant national/international installation standards
(e.g. IEC/EN60079-14 Electrical apparatus for explosive gas atmospheres - Part 14: Electrical installations in hazardous areas, BS 5345 Pt4, VDE 165, ANSI/ISA RP12.06.01 Installation
of Intrinsically Safe System for Hazardous (Classified) Locations, National Electrical Code NEC ANSI/NFPA 70 Section 504 and 505, Canadian Electrical Code CEC) following the
established installation rules, particular care shall be given to segregation and clear identification of I.S. conductors from non I.S. ones.
De-energize power source (turn off power supply voltage) before plug or unplug the terminal blocks when installed in Hazardous Area or unless area is known to be nonhazardous.
Warning: substitution of components may impair Intrinsic Safety and suitability for Zone 2.
Explosion Hazard: to prevent ignition of flammable or combustible atmospheres, disconnect power before servicing or unless area is known to be nonhazardous.
Failure to properly installation or use of the equipment may risk to damage the unit or severe personal injury.
The unit cannot be repaired by the end user and must be returned to the manufacturer or his authorized representative. Any unauthorized modification must be avoided.
Warning
D1010-054
D1010-056
D1010-057
Associated Apparatus
Safe Area or
Hazardous Area
Zone 2, Group IIC, IIB, IIA, T-Code T4
Hazardous Area
Zone 0, Group IIC, IIB, IIA
Intrinsically
Safe Equipment
Must not use or generate
more than 250 Vrms or Vdc
Control
Equipment
Safe Area
Hazardous Area
Zone 2, Group IIC, IIB, IIA
Non-incendive
Equipment
15
16
1
2
+
-
+
-
-
+
Power Supply
3
4
Must not use or generate
more than 250 Vrms or Vdc
Safe Area or
Hazardous Area
Zone 2, Group IIC, IIB, IIA, T-Code T4
Safe Area
-
+
-
+
Power Supply
Control
Equipment
D1010-054
D1010-056
D1010-057
Associated Apparatus
15
16
4
3
2
1
-
+
Start-up
Before powering the unit check that all wires are properly connected, particularly supply conductors and their polarity, input and output wires, also check that Intrinsically Safe conductors
and cable trays are segregated (no direct contacts with other non I.S. conductors) and identified either by color coding, preferably blue, or by marking.
Check conductors for exposed wires that could touch each other causing dangerous unwanted shorts.
Turn on power, the “power on” green led must be lit, output signal should be corresponding to the input from the transmitter or the thermocouple.
If possible change the transmitter output and check the corresponding Safe Area output.
