Technical Information Process transmitter with control unit Digital

Technical Information Process transmitter with control unit Digital
Technical Information
RMA42
Process transmitter with control unit
Digital process transmitter for mounting on a top-hat rail for
monitoring and visualizing analog measured values
Application
Your benefits
•
•
•
•
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• 5-digit, 7-segment backlit LC display
• User-configurable dot matrix display range for bar
graph, units and tag name
• 1 or 2 universal inputs
• 2 relays (optional)
• Min./max. value saved
• 1 or 2 calculated values
• One linearization table with 32 points for each
calculated value
• 1 or 2 analog outputs
• Digital status output (open collector)
• Operation using 3 keys
• Configuration via interface and FieldCare software
Plant and apparatus engineering and construction
Control rooms and cabinets
Laboratories
Process recording and supervision
Process control
Signal adjustment and signal conversion
Overfill protection according to WHG
TI00150R/09/en
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RMA42
Function and system design
Application
a0011762
Example for "differential pressure" application
The RMA42 process transmitter powers the transmitter and processes analog signals from transmitters,
particularly from the area of process instrumentation. These signals are monitored, evaluated, calculated,
saved, separated, linked, converted and displayed. The signals, intermediate values and the results of
calculations and analysis are transmitted by digital or analog means.
Measuring system
The RMA42 is a process transmitter, which is controlled by a microcontroller, and exhibits a display, analog
inputs for process and status signals, analog and digital outputs, as well as an interface for configuration.
Connected sensors (e.g. temperature, pressure) can be powered by the integrated transmitter power supply
system. The signals to be measured are converted from analog to digital signals, processed digitally in the
device, and then converted from digital to analog signals and made available to the various outputs. All
measured values, and values calculated in any way, are available as a signal source for the display, all outputs,
relays and the interface. It is possible to make multiple use of the signals and results (e.g. a signal source as an
analog output signal and limit value for a relay).
Mathematics functions
The following mathematics functions are available in RMA42:
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•
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•
•
Sum
Difference
Mean
Linearization
Multiplication
Linearization function
Up to 32 user-definable points are available in the device per calculated value to linearize the input, e.g. for
tank linearization. In the case of the two-channel device (option), mathematics channel M2 can be used to
linearize mathematics channel M1.
Linearization is also available in the FieldCare configuration software.
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RMA42
Input
Inputs
One or two universal inputs
Measured variable
Current, voltage, resistance, resistance thermometer, thermocouples
Measuring ranges
Current:
• 0/4 to 20 mA +10% overrange
• Short-circuit current: max. 150 mA
• Load: 10 
Voltage:
• 0 to 10 V, 2 to 10 V, 0 to 5 V, 0 to 1 V, 1 to 5 V, ± 1 V ± 10 V, ± 30 V, ± 100 mV
• Max. permitted input voltage:
Voltage  1 V: ± 35 V
Voltage < 1 V: ± 12 V
• Input impedance: > 1 M
Resistance:
• 30 to 3000 
Resistance thermometer:
• Pt 100 as per IEC60751, GOST, JIS1604
• Pt 500 and Pt 1000 as per IEC60751
• Cu 100, Cu 50, Pt 50, Pt 46, Cu 53 as per GOST
• Ni 100, Ni 1000 as per DIN 43760
Thermocouple types:
• Type J, K, T, N, B, S, R as per IEC60584
• Type U as per DIN 43710
• Type L as per DIN 43710, GOST
• Type C, D as per ASTM E998
Update time
200 ms
Linearization
Linearization of input signals and calculated values possible over a maximum of 32 points.
Galvanic isolation
Towards all other circuits
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RMA42
Output
Output signal
One or two analog outputs, galvanically isolated
Current/voltage output
Current output:
• 0/4 to 20 mA
• Overrange up to 22 mA
Voltage:
• 0 to 10 V, 2 to 10 V, 0 to 5 V, 1...5 V
• Overrange: up to 11 V, short-circuit proof, Imax < 25 mA
Loop power supply
• Open-circuit voltage: 24 V DC (+15% /-5%)
Ex version: > 14 V at 22 mA
Non-hazardous operation: > 16 V at 22 mA
• Maximum 30 mA short-circuit-proof and overload-proof
• Galvanically isolated from system and outputs
HART®:
HART® signals are not affected
Status output
Limit function
4
Open Collector for monitoring of the device state and alarm notification. The OC output is closed in normal
state. In error state, the OC output is opened.
• Imax = 200 mA
• Umax = 28 V
• Uon/max = 2 V at 200 mA
Relay contact
Changeover
Maximum contact burden DC
30 V / 3 A (permanent state, without destruction of the input)
Maximum contact burden AC
250 V / 3 A (permanent state, without destruction of the input)
Minimum contact load
500 mW (12 V/10 mA)
Galvanic isolation towards all other circuits
Test voltage 1500V AC
Switching cycles
> 1 million
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RMA42
Terminal assignment
Electrical connection
a0011798
Terminal assignment of the process transmitter
Supply voltage
Wide-range power supply unit 24 to 230 V AC/DC (-20 % / +10 %) 50/60 Hz
Power consumption
Max. 21.5 VA / 6.9 W
Connection data interface
Commubox FXA291 PC USB interface
• Connection: 4-pin connector
• Transmission protocol: FieldCare
• Transmission rate: 38,400 Baud
Interface cable TXU10-AC PC USB interface
• Connection: 4-pin connection
• Transmission protocol: FieldCare
• Delivery scope: Interface cable incl. FieldCare Device Setup DVD with all Comm DTMs and Device DTMs
HART®
• Connection sockets on the front of the device
• Internal communication resistor
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RMA42
Performance characteristics
Reference operating
conditions
Power supply: 230 V AC, 50/60 Hz
Ambient temperature: 25 °C ± 5 °C (77 °F ± 9 °F)
Humidity: 20 % to 60 % rel. humidity
Maximum measured error
Universal input:
Accuracy
Input:
Range:
Maximum measured error of measuring
range (oMR):
Current
0 to 20 mA, 0 to 5 mA, 4 to 20 mA; overrange: to 22 mA
± 0.05%
Voltage  1 V
0 to 10 V, 2 to 10 V, 0 to 5 V, 1 to 5 V, 0 to 1 V, ± 1 V, ± 10 V, ± 30
V
± 0.1%
Voltage < 1 V
± 100 mV
± 0.05%
Resistance
measurement
30 to 3000 
4-wire: ± (0.10% oMR + 0.8 )
3-wire: ± (0.10% oMR + 1.6 )
2-wire: ± (0.10% oMR + 3 )
Resistance
thermometer
Pt100, -200 to 850 °C (-328 to 1562 °F) (IEC60751, =0.00385)
Pt100, -200 to 850 °C (-328 to 1562 °F) (JIS1604, w=1.391)
Pt100, -200 to 649 °C (-328 to 1200 °F) (GOST, =0.003916)
Pt500, -200 to 850 °C (-328 to 1562 °F) (IEC60751, =0.00385)
Pt1000, -200 to 600 °C (-328 to 1112 °F) (IEC60751, =0.00385)
4-wire: ± (0.10% oMR + 0.3 K (0.54 °F))
3-wire: ± (0.10% oMR + 0.8 K (1.44 °F))
2-wire: ± (0.10% oMR + 1.5 K (2.7 °F))
Cu100, -200 to 200 °C (-328 to 392 °F) (GOST, w=1.428)
Cu50, -200 to 200 °C (-328 to 392 °F) (GOST, w=1.428)
Pt50, -200 to 1100 °C (-328 to 2012 °F) (GOST, w=1.391)
Pt46, -200 to 850 °C (-328 to 1562 °F) (GOST, w=1.391)
Ni100, -60 to 250 °C (-76 to 482 °F) (DIN43760, =0.00617)
Ni1000, -60 to 250 °C (-76 to 482 °F) (DIN43760, =0.00617)
4-wire: ± (0.20% oMR + 0.3 K (0.54 °F))
3-wire: ± (0.20% oMR + 0.8 K (1.44 °F))
2-wire: ± (0.20% oMR + 1.5 K (2.7 °F))
Cu53, -50 to 200 °C (-58 to 392 °F) (GOST, w=1.426)
4-wire: ± (0.30% oMR + 0.3 K (0.54 °F))
3-wire: ± (0.30% oMR + 0.8 K (1.44 °F))
2-wire: ± (0.30% oMR + 1.5 K (2.7 °F))
Type J (Fe-CuNi), -210 to 1200 °C (-346 to 2192 °F) (IEC60584)
± (0.1% oMR +0.5 K (0.9 °F))
from -100 °C (-148 °F)
Type K (NiCr-Ni), -200 to 1372 °C (-328 to 2502 °F) (IEC60584)
± (0.1% oMR +0.5 K (0.9 °F))
from -130 °C (-202 °F)
Type T (Cu-CuNi), -270 to 400 °C (-454 to 752 °F) (IEC60584)
± (0.1% oMR +0.5 K (0.9 °F))
from -200 °C (-328 °F)
Thermocouples
Type N (NiCrSi-NiSi), -270 to 1300 °C (-454 to 2372 °F) (IEC60584) ± (0.1% oMR +0.5 K (0.9 °F))
from -100 °C (-148 °F)
AD converter resolution
6
Type L (Fe-CuNi), -200 to 900 °C (-328 to 1652 °F) (DIN43710,
GOST)
± (0.1% oMR +0.5 K (0.9 °F))
from -100 °C (-148 °F)
Type D (W3Re/W25Re), 0 to 2495°C (32 to 4523°F)(ASTME998)
± (0.15% oMR +1.5 K (2.7 °F))
from 500 °C (from 932 °F)
Type C (W5Re/W26Re), 0 to 2320°C (32 to 4208°F)(ASTME998)
± (0.15% oMR +1.5 K (2.7 °F))
from 500 °C (932 °F)
Type B (Pt30Rh-Pt6Rh), 0 to 1820 °C (32 to 3308 °F) (IEC60584)
± (0.15% oMR +1.5 K (2.7 °F))
from 600 °C (1112 °F)
Type S (Pt10Rh-Pt), -50 to 1768 °C (-58 to 3214 °F) (IEC60584)
± (0.15% oMR +3.5 K (6.3 °F))
for -50 to 100 °C (-58 to 212 °F)
± (0.15% oMR +1.5 K (2.7 °F))
for 100 to 1768 °C (212 to 3214 °F)
Type R (Pt13Rh-Pt), -50 to 1768 °C (-58 to 3214 °F) (IEC60584)
± (0.15% oMR +3.5 K (6.3 °F))
for -50 to 100 °C (-58 to 212 °F)
± (0.15% oMR +1.5 K (2.7 °F))
for 100 to 1768 °C (212 to 3214 °F)
Type U (Cu-CuNi), -200 to 600 °C (-328 to 1112 °F) (DIN 43710)
± (0.15% oMR +0.5 K (0.9 °F))
from -100 °C (-148 °F)
16 bit
Endress+Hauser
RMA42
Temperature drift
Temperature drift:  0.01%/ K (0.1%/18 °F) oMR
 0.02%/ K (0.2%/18 °F) oMR for Cu100, Cu50, Cu53, Pt50 and Pt46
Analog output:
Current
Voltage
0/4 to 20 mA, overrange to
22 mA
± 0.05% of measuring range
Max. load
500 
Max. inductance
10 mH
Max. capacitance
10 F
Max. ripple
10 mVpp at 500 , frequency < 50 kHz
0 to 10 V, 2 to 10 V
0 to 5 V
Overrange: up to 11 V, shortcircuit proof, Imax < 25 mA
± 0.05% of measuring range
± 0.1% of measuring range
Max. ripple
10 mVpp at 1000 , frequency < 50 kHz
Resolution
13 bit
Temperature drift
0.01%/K (0.1%/18 °F) of of measuring range
Galvanic isolation
Testing voltage of 500 V towards all other circuits
Installation
Installation instructions
Mounting location
Mounting on top-hat rail as per IEC 60715.
Orientation
Vertical.
Environment
Ambient temperature range
-20 to +50 °C (-4 to 122 °F)
To avoid heat accumulation, always make sure the device is sufficiently cooled.
If the device is operated in the upper temperature limit range, this reduces the operating life of the display.
Storage temperature
-40 to +85 °C (-40 to 185 °F)
Operating height
< 2000 m above MSL (6561 ft)
Climate class
As per IEC 60654-1, Class B2
Degree of protection
Top-hat rail housing IP 20
Condensation
Not permitted
Electrical safety
Protection class II, overvoltage category II, pollution level II
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RMA42
Electromagnetic compatibility
(EMC)
• Interference immunity:
To IEC 61326 industrial environments / NAMUR NE 21
• Interference emissions:
To IEC 61326 Class A
Mechanical construction
Design, dimensions
a0011792
Dimensions of the process transmitter
Weight
Approx. 300 g (10.6 oz)
Material
• Housing: plastic PC-GF10
Terminals
Screw terminals, plug-in; 2.5 mm2 (30-12 AWG; torque 0.5-0.6 Nm (4.4-5.3 lb in))
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RMA42
Human interface
Display elements
a0011767
Display and operating elements of the process transmitter
1: HART® connection sockets
2: Display
3: Operating keys
4: PC interface connection port
5: Green LED; on = supply voltage applied
6: Red LED; on = error/alarm
7: Yellow LED; on = relay 1 energized
8: Yellow LED; on = relay 2 energized
a0011765
Display of the process transmitter
1: Channel display: 1: analog input 1; 2: analog input 2; 1M: calculated value 1; 2M: calculated value 2
2: Measured value display
3: Dot matrix display for TAG, bar graph and unit
4: Limit value indicators in the bar graph
5: "Operation locked" indicator
6: Minimum/maximum value indicator
• Display
5-digit, 7-segment backlit LC display
Dot matrix for text/bar graph
• Display range
-99999 to +99999 for measured values
• Signaling
– Setup security locking (lock)
– Measuring range overshoot/undershoot
– 2 x status relay (only if relay option was selected)
Operating elements
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3 keys: -, +, E
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RMA42
Remote operation
Configuration
The device can be configured with the PC software or on site using the operating keys. FieldCare Device Setup
is delivered together with the Commubox FXA291 or TXU10-AC (see ’Accessories’) or can be downloaded
free of charge from www.endress.com.
Interface
4-pin socket for the connection with a PC via Commubox FXA291 or TXU10-AC interface cable (see
'Accessories')
Certificates and approvals
CE mark
The device meets the legal requirements of the EU directives. Endress+Hauser confirms that the device has
been tested successfully by affixing the CE mark.
Ex approval
Information about currently available Ex versions (ATEX, FM, CSA, etc.) can be supplied by your E+H Sales
Center on request. All explosion protection data are given in a separate documentation which is available upon
request.
Marine certificate
GL Marine certificate (optional)
Other standards and
guidelines
• IEC 60529:
Degrees of protection by housing (IP code)
• IEC 61010-1: 2001 Cor 2003
Safety requirements for electrical equipment for measurement, control and laboratory use
• EN 60079-11
Explosive atmospheres - Part 11: equipment protection by intrinsic safety "I"
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RMA42
Ordering information
Product structure
RMA42
Process transmitter
Universal process transmitter. DIN rail. 1/2-channel, scalable universal input.
LC display, 7-segment range, 5-digits. Dot-Matrix-Area variable configurable + bargraph/unit/channel identification.
Linearization, limit function, min-/max-value data, alarm logging.
3 key button operation, 4 status LED. Loop power supply. Multi voltage power supply unit
Approval:
AA
BH
CB
CP
FB
Non-hazardous area
ATEX
II (1)GD [Ex ia] IIC
ATEX
AIS, NI/I/2/ABCDEFG/T4
CSA
General purpose
FM
AIS, NI/I/2/ABCDEFG/T4
Input; output:
A
B
C
D
1 x universal; 1 x analog
2 x universal; 2 x analog
1 x universal; 1 x analog + 2 relays
2 x universal; 2 x analog + 2 relays
 Order code (part 1; 1 feature must be selected per category.)
RMA42-
Additional options (not compulsory - no selection or multiple selection possible)
Calibration
F1
Works calib. certificate
Service
G1
Customized pre-installed
Additional Approval
H2
H3
H4
H5
H6
UL listed
SIL
WHG overspill protection
Power plant seismically tested acc. KTA3505
GL Marine certificate
Accessory enclosed
I3
Configuration kit
Marking
Z2
Z3
Z6
RMA42-
+
Tagging (TAG), on device
Commissioning label, paper
Tagging (TAG), by customer
 Order code, complete
Accessories
PC operating software
Interface cable
FieldCare
Order No.
Name
FXA291
Commubox FXA291 incl. FieldCare Device Setup and DTM library
TXU10-AC
Commubox TXU10 incl. FieldCare Device Setup and DTM library
Documentation
• Overview brochure: System components - Indicators with control unit for field and panel mounting, power
supplies, barriers, transmitters, energy managers and surge arresters: FA016K/09
• Operating Instructions for 'Process transmitter RMA42’: BA287R/09
• Ex documentation:
ATEX II(1)GD [Ex ia] IIC: XA095R/09/a3
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Instruments International
Endress+Hauser
Instruments International AG
Kaegenstrasse 2
4153 Reinach
Switzerland
Tel.+41 61 715 81 00
Fax+41 61 715 25 00
www.endress.com
info@ii.endress.com
TI00150R/09/en/01.11
71132849
FM+SGML6.0 ProMoDo
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