Felix Brakl

Felix Brakl
High-performance Intelligent
2-wire In-head Transmitters
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Actual siz
IPAQ-HPLUS is a high-performance, universal and intelligent 2-wire In-head transmitter for temperature and
other measurement applications.
IPAQ-HXPLUS is the Intrinsic Safe version for use in
Ex-applications.
The outstanding combination of excellent specifications, high functionality and simple configuration
makes IPAQ-HPLUS and IPAQ-HXPLUS the obvious choice
in demanding applications.
The Windows based and user friendly software,
IPRO 4, is used for transmitter configuration, documentation, monitoring and calibration purposes.
Performance and design:
Functions:
Precision accuracy
Input for RTDs, T/Cs, mV and resistance
• Linearity 0.05 % for RTD.
• Reduced temperature influence. Each transmitter is
individually temperature compensated.
• Long-term stability 0.05 %/year.
• Reduced inventory costs.
• Simplified plant engineering.
Fast response
• Update time down to 170 ms, i.e. a measuring
frequency of appr. 6 per second.
Enhanced total system accuracy
• Sensor error correction (for known sensor errors).
• System error correction (against known temperatures).
NAMUR-compliant
True on-line communication
• Full access to all features while in operation.
Configuration without external power
• Editing or reading a configuration is possible also
without external power supply.
Display connection
• Direct connection of an Inor digital display to the
communication port.
• Output limitations and fail currents adjustable
according to NAMUR recommendations.
Efficient customized 40-point linearization
Smart Filter
Sensor diagnostics
• Short response time combined with high noise
immunity.
Input-Output isolation 3750 VAC
• Excellent filtering of voltage spikes and
elimination of ground loops.
High load capacity
• Any sensor characteristics can be matched.
• SmartSense detects low sensor isolation
(essential for correct measurements).
• Selectable sensor break action.
Simplified loop check-up
• The transmitter works as an accurate current
generator with user defined action.
• Only 6.5 V voltage drop over the transmitter
(IPAQ-HPLUS) allows for high loads.
On-screen indications and line recording
Designed for harsh conditions
Improved QA with data storage
• Operation temperature up to 85 °C / 185 °F
(105 °C / 221 °F on request).
• Excellent EMC performance.
• Durable, shockproof design.
• Valuable tools for temporary measurements.
• Vital information, such as TAG-No., maintenance
record etc. can be stored in the nonvolatile memory.
5 year limited warranty
55
IPAQ-HPLUS/HXPLUS
Main features of IPAQ-HPLUS and IPAQ-HXPLUS
Accuracy and stability
PLUS
Sensor or System error correction
PLUS
IPAQ-H /IPAQ-HX
are designed for applications with
the highest demands on accuracy, also under severe operating
conditions. To reach these demands, the following factors are
essential:
Low linearity and calibration errors -The combination of a
high-efficient 40-point linearization and the use of quality
components and precision calibration equipment reduce these
errors to a minimum, e.g. ±0.05 % of span for RTD inputs.
IPAQ-HPLUS/IPAQ-HXPLUS offer two ways of improving the
measurement with temperature sensors:
Sensor error correction - Known sensor errors compared to
the standard curve, e.g. for a calibrated sensor, are entered,
and the transmitter automatically corrects for the sensor errors. Fig. 2.
Fig.2 Sensor error correction
Low ambient temperature influence -Each transmitter in the
IPAQPLUS family is individually compensated at different temperatures within the operating range. This procedure minimizes the ambient influence to a minimum.
Sensor output
[Ω/mV]
Tmin and Tmax= End values
of the measuring range.
Standard curve
∆T2
Sensor curve
High long-term stability -Internal “self calibration“, by
means of continuous adjustment of important parameters
after comparison with accurate built-in references, contributes to a stability better than ±0.05 %/year.
∆T1
Temp.
Measurements with RTDs and other resistances
PLUS
T2 Tmax.
The transmitter
compensates for the
deviations and transforms
the Sensor curve to a
Standard curve
[°C/°F]
PLUS
IPAQ-H /IPAQ-HX
accept inputs from standardized
Platinum and Nickel RTDs like Pt10…Pt1000 acc. to IEC 751
(α=0.00385), Pt100 acc. to JIS 1604 (α=0.003916) and Ni100/
Ni1000 acc. to DIN 43760, as well as inputs from plain resistance sensors such as potentiometers. 3- or 4-wire connection
can be chosen.
Measurements with thermocouples and plain voltage
IPAQ-HPLUS/IPAQ-HXPLUS accept inputs from 11 types of
standardized thermocouples as well as plain mV input.
For T/C input, the CJC (Cold Junction Compensation) is
fully automatic, by means of an accurate measurement of the
terminal temperature. Alternatively, an external CJ temperature can be entered.
System error correction -This method is used to correct the
system error (sensor + transmitter error) by exposing the sensor to one (one-point correction) or two (two-point correction)
accurately measured temperatures (true temperatures).The
true temperature(s) and the corresponding transmitter
reading(s) are entered, and the transmitter automatically corrects for the system errors. Fig. 3.
Fig.3 Two-point System error correction
Reading [mA]
20
Direct connection to external Inor display through the communication port. The information on the display is defined when
programming the transmitter. Request display information.
Customized linearization and Engineering units
∆out2
∆out1
System curve
Tmin and Tmax= End values
of the measuring range.
∆out1 and ∆out2= Deviations from True curve at
T1 and T2.
(before correction)
4
Temp.
Tmin. T1
The accurate and versatile 40-point Customized linearization can
be used to create any type of linearization curve for RTD, T/C,
resistance and mV inputs. By combining Customized
linearization with the use of Engineering units, the transmitters
can be programmed to give a linear output corresponding to a
specific measuring range expressed in the primary process
value. The sensor characteristics are described by either up to
40 data pairs or 8 polynomials. Fig. 1a and 1b.
True curve
(corrected)
12
Digital output for display
T2 Tmax.
The transmitter
compensates for the
deviations and transforms
the System curve to a
True curve
[°C/°F]
SmartSense - Sensor isolation monitoring
SmartSense continuously monitors the isolation resistance
of thermocouples and 3-wire connected RTDs as well as the
cabling between sensor and transmitter. The transmitter will
react by forcing the output to a user defined level if the isolation is below a preset level. SmartSense requires an extra lead
inside the thermocouple or RTD. Fig. 4.
For detailed information, see section Theory and Facts.
Fig.1a
Process
value
0-100 kPa
Sensor
output
0-50 mV
Sensor
Transmitter
Transmitter
output
4-20 mA
Fig.1b
mV
Tmin. T1
∆T1 and ∆T2=Deviations
from Standard curve
at T1 and T2.
Sensor
mA
50
System
20
Sensor break monitoring
IPAQ-HPLUS/IPAQ-HXPLUS monitor sensor break and force the
output signal to a user defined level, when any sensor lead is
broken or disconnected. The sensor break monitoring can be
switched off. The monitoring is furnished with a pulsed excitation current. This eliminates the voltage drop in the lead wires
(giving a measuring error), caused by a standard DC excitation current.
Controlled output for instrument calibration
4
0
kPa
100
kPa
100
IPAQ-HPLUS/IPAQ-HXPLUS can be set to automatically provide
fixed or recurring output current regardless of the input signal. The time periods in recurring mode are selectable.
Exemple of a system (sensor + transmitter) with an output linear to
the process value, in spite of a non-linear sensor.
56
IPAQ-HPLUS/HXPLUS
Smart Filter
The Smart Filter detects the difference between fast signal
changes and electrical noise, e.g. ripple and spikes, on the input. The smart filter offers a superior combination of very
short response time for the input signal and high noise immunity.
Adjustable dampening
The dampening function can be used to dampen undesired
instabilities on the input signal. The dampening time can be
set between 0 and 10 seconds in intervals of 1 second. The
dampening time is the time required, in addition to the update time, for the output to reach 90% of its final value after a
step change has been applied to the input.
NAMUR-compliant
The output can be limited to high and low selectable values,
i.e. 3.8 ≤ I ≤ 20.5 mA for NAMUR compliance. This function is
overridden by the Sensor break monitoring and SmartSense.
Power supply
IPAQ-HPLUS/IPAQ-HXPLUS are loop-powered and will work on
voltages down to 6.5 VDC (8 VDC for IPAQ-HXPLUS), thus allowing for high loads in the current loop. Reversed polarity
will not damage the transmitter. Fig. 5
Mounting
IPAQ-HPLUS/IPAQ-HXPLUS are designed to fit inside connection heads type DIN B or larger. The 7mm/0.28 inch center
hole facilitates the mounting procedure.
IPRO 4 - The user friendly software
for all transmitters of the IPAQ family
IPRO 4, which is used with all IPAQ-transmitters, is the tool to
utilize all the versatile functions of the IPAQ-HPLUS and
IPAQ-HXPLUS such as:
• Measurement configuration: Sensor type, range, sensor
or system error correction, linearization, engineering units,
output settings, filter activation, etc.
• Monitoring of sensor status: Sensor break and sensor isolation (SmartSense).
• On-screen real time presentation of measured values and
output signal in the form of numericals, meters, bar graphs
and line recorder.
• Transmitter calibration: Field calibration in one or two
points and basic calibration.
• Documentation: Configuration files can be saved for future
use and configuration protocols can easily be printed.
The communication with the transmitter can be performed
on line, i.e. with transmitter in operation.
IPAQ-HPLUS/IPAQ-HXPLUS can also be configured without
connecting a power supply.
An isolated and Ex-approved communication cable is included in the software kit, IPRO-X.
IPRO 4 is compatible with Windows 3.1, Windows 3.11, Windows 95 and Windows NT Workstation 4.0. The program is
menu-driven and easy to learn. On-line help is an effective
tool for the user.
Warranty
IPAQ-HPLUS/IPAQ-HXPLUS are covered by a 5 year limited warranty.
IPAQ-HPLUS/IPAQ-HXPLUS Configuration scheme
RTD
Input
Pt100
Pt1000
PtX
Ni100
Ni1000
D100
Linearity
Connections
and additional
functions
Dampening
(IEC751, α=0.00385)
(IEC751, α=0.00385)
10 ≤ X ≤ 1000 (IEC751,
α=0.00385)
(DIN 43760)
(DIN 43760)
(Pt 100 acc.
to JIS1604,α=0.003916)
Thermocouple
type AE
W5%Rh-W26%Rh
type B
Pt30%Rh - Pt6%Rh
type E NiCr-CuNi
type J Fe-CuNi
type K NiCr-Ni
Temperature linear
Resistance linear
3-wire connection
4-wire connection
3-wire connection
+ SmartSense (Pt100/D100)
Diff temperature (Pt100)
Sensor break protection
Sensor error correction
System error correction
type L Fe-CuNi
type N NiCrSi-NiSi
type R Pt13%Rh-Pt
type S Pt10%Rh-Pt
type T Cu-CuNi
type U Cu-CuNi
Customer specific
Resistance
Voltage
Span:
10 Ω to 2000 Ω
Span:
2 mV to 500 mV
Temperature linear
Voltage linear
Customized linearization
Resistance linear
Customized
linearization
Cold junction
compensation (CJC)
No CJC / External CJC
CJC + SmartSense
Sensor break protection
Sensor error correction
System error correction
3-wire connection
4-wire connection
Engineering unit
Sensor break
protection
Min/max correction
Voltage linear
Customized
linearization
Engineering unit
Min/max correction
Dampening time 0 - 10 s
Current
Output
4 - 20 mA 20 - 4 mA Special
Output limits
57
IPAQ-HPLUS/HXPLUS
Specifications
Input
RTD’s and Resistance
Pt100 (IEC751, α=0.00385)
3-, 4-wire connection
-200 to +1000 °C / -328 to +1832 °F
Pt1000 (IEC751, α=0.00385)
3-, 4-wire connection
-200 to +200 °C / -328 to +392 °F
PtX 10 ≤ X ≤ 1000 (IEC751, α=0.00385)
3-, 4-wire connection
Upper range depending on X-value
Ni100 (DIN 43760)
3-, 4-wire connection
-60 to+250 °C / -76 to +482 °F
Ni1000 (DIN 43760)
3-, 4-wire connection
-60 to +150 °C / -76 to +302 °F
D100 (Pt 100 acc.to JIS1604, α=0.003916)
3-, 4-wire connection
-200 to +1000 °C / -328 to +1832 °F
Potentiometer/resistance
3-, 4-wire connection
0 to 2000 Ω
Sensor current
~ 0.4 mA
Maximum sensor wire resistance
25 Ω/wire
Thermocouples and Voltage
T/C
Type: AE, B, E, J, K, L, N, R, S, T, U
Ranges according to users manual
Voltage input
-10 to +500 mV
Input impedance
>10 MΩ
Maximum sensor wire resistance
500 Ω (total loop)
Monitoring
Sensor break monitoring
User definable output
3.5 to 22.8 mA 1)
SmartSense, sensor isolation monitoring
User definable output
3.5 to 22.8 mA 1)
Zero adjustment
All inputs
Any value within range limits
Minimum spans
Pt100, Pt1000, Ni100, Ni1000
10 °C / 18 °F
Potentiometer
10 Ω
T/C, mV
2 mV
Adjustments
Output
Straight,reversed or any intermediate value
4-20/20-4 mA
5 µA
Resolution
Maximum output signal
Adjustable
≥3.5 mA
≤22.8 mA
Permissible load, see fig.5
IPAQ-HPLUS
760 Ω @ 24 VDC, 23 mA
Minimum output signal
Adjustable
695 Ω @ 24 VDC, 23 mA 2)
PLUS
IPAQ-HX
Temperature
-40 to +85 °C / -40 to +185 °F
4)
IPAQ-H
-40 to +85 °C / -40 to +185 °F
4)
IPAQ-HXPLUS
Acc. to Ex-approval (pending)
Ambient, storage
Ambient, operation
PLUS
General data
Adjustable dampening time
0 to 10 s
Update time
~170 ms 3)
Isolation In - Out
3750 VAC, 1 min
Humidity (non-condensing)
0 to 95 %RH
Intrinsic safety
IPAQ-HXPLUS, Cenelec
FM
Approval pending
Approval pending
Power supply, polarity protected
Supply voltage
Permissible ripple
IPAQ-HPLUS
6.5 to 36 VDC
IPAQ-HXPLUS
8.0 to 30 VDC 2) 2-wire
2-wire
4 V p-p @ 50/60 Hz
1)
Independent of output limitation
Preliminary data
3)
~300 ms with Sensor Break Monitoring activated
4)
Up to 105 °C/221 °F available on request
2)
58
IPAQ-HPLUS/HXPLUS
Accuracy
Linearity
Calibration
RTD Potentiometer, mV
±0.05 % 1)
T/C
±0.1 %
RTD
Max. of ±0.1 °C / ±0.2 °F or ±0.05 % 1)
Potentiometer
Max. of ±0.1 Ω or ±0.05 % 1)
mV, T/C
Max. of ±20 µV or ±0.05 % 1)
1)
Cold Junction Compensation (CJC)
T/C
±0.5 °C / ±0.9 °F
Temperature influence 4)
All inputs
Max. of ±0.125 °C/25 °C or ±0.125%/25 °C 1) 3)
Max. of ±0.25 °F/50 °F or ± 0.14%/50 °F 1) 3)
Temperature influence CJC
4)
±0.5 °C/25 °C / ±1.0 °F/50 °F
T/C
Instrument calibration output
4-20 mA
±4.5 µA
Sensor wire resistance influence
RTD, Potentiometer, 3-wire
Negligible
RTD, Potentiometer, 4-wire
Negligible
mV, T/C
2)
Negligible
Load influence
Negligible
Power supply influence
Negligible
RFI influence, 0.15-1000 MHz, 10 V or V/m
±0.1 % 1) (typical)
Long-term stability
±0.05 % 1) /year
Housing
Material / Flammability (UL)
PC + ABS/V0, Polyamide/V2
Mounting
DIN B-head or larger, DIN rail (with mounting kit)
Connection
≤1.5 mm2, AWG 16
Single/stranded wires
Weight
50 g
Protection, housing / terminals
IP 50 / IP 10
1)
Of input span
2)
With equal wire resistance
3)
If zero-deflection > 100% of input span:
add 0.125% of input span/25 °C or 0.14%
of input span/50 °F per 100% zero-deflection
4)
Reference temperature 23 °C/73 °F
The User Instructions must be read prior to adjustment and/or installation.
Accuracy examples
Partial accuracies (°C)
Applications
Pt100, 0-200 °C, TAmb = 25°C
Pt100, 0-200 °C, TAmb = 50°C
T/C K, 0-600 °C, TAmb = 25°C
T/C K, 0-600 °C, TAmb = 50°C
Linearity
Calibration
CJC
±0.1
±0.1
±0.6
±0.6
±0.1
±0.1
±0.3
±0.3
_
_
±0.5
±0.5
Total
statistical accuracy
Temperature Temperature
influence
influence CJC
±0.02
±0.27
±0.06
±0.81
_
_
±0.04
±0.54
°C 5)
±0.14
±0.30
±0.84
±1.28
% of span
±0.07
±0.15
±0.14
±0.21
Reference temperature: TAmb = 23 °C
5)
Total statistical accuracy (∆Tot) is calculated as the
”Root Mean Square” of the partial accuracies (∆1...∆n)
∆Tot = ∆12 + ∆22 +.......+ ∆n2
59
IPAQ-HPLUS/HXPLUS
INPUTS
RTD
Pt100, Pt1000, Ni100, Ni1000, PtX, D100
4-wire connection
3-wire connection
Pt100, D100
3-wire connection
Pt100
Diff temperature T1>T2
T2
T1
*SmartSense lead
Voltage
Potentiometer
4-wire connection
3-wire connection
millivolt
- +
OUTPUT
Connections
4-20 mA Output
-
AE,B,E,J,K,L,N,R,S,T,U
or customer specific
- +
*SmartSense lead
Dimensions
44/1.73
Input
Power +
Supply
Thermocouple
26/
16/ 1.02
0.63
RLoad
Output
7/0.28
IOUT
RLOAD
+
-
PC
Connection
33/1.30
Output load diagram
SmartSense
mm/inches
Ordering table
Fig.5
Fig.4
*
*
Permissible RLoad at 23 mA output
RLoad (Ω)
1600
1200
IPAQ-HPLUS
800
400
0
4
Pt100/D100
T/C
*SmartSense lead
IPAQ-HXPLUS
8 12 16 20 24 28 32 36
Supply voltage U (VDC)
RLoad=(U-6.5)/0.023 (IPAQ-HPLUS)
RLoad=(U-8.0)/0.023 (IPAQ-HXPLUS)
Item
Transmitter
IPAQ-HPLUS
IPAQ-HXPLUS (Cenelec)
IPAQ-HXPLUS (FM)
Options
Configuration
Configuration with 5-point
calibration certificate
Software and cable
IPRO-X (IPRO with cable)
Software IPRO upgrade
Accessories
Sur face mounting box
Rail mounting box
Head mounting kit
Rail mounting kit
Part No.
70IPHP0001
70IPHPX001
70IPHPX101
70CAL00001
70CAL00051
70IPRX0001
70IPRS0001
70ADA00008
70ADA00009
70ADA00012
70ADA00013
60
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