Universal Intelligent 2-wire In-head Transmitters

Universal Intelligent 2-wire In-head Transmitters
Universal Intelligent
2-wire In-head Transmitters
e
Actual siz
IPAQ-H is a universal and intelligent
2-wire In-head transmitter for temperature and other measurement
applications.
IPAQ-HX is the Intrinsic Safe version for use in Ex-applications.
The combination of competitive
pricing, functionality and simple
configuration has made IPAQ-H and
IPAQ-HX leading in-head transmitters for industrial temperature
measurements.
The Windows based and user friendly software, IPRO 4, is used for transmitter configuration, documentation, monitoring and calibration purposes.
Performance and design:
Functions:
Excellent stability
Input for RTDs, T/Cs, mV and resistance
• Long-term stability 0.1 %/year.
• Reduced inventory costs.
• Simplified plant engineering.
Enhanced total system accuracy
• Sensor error correction (for known sensor errors).
• System error correction
(against known temperatures).
True on-line communication
NAMUR-compliant
Sensor diagnostics
• Output limitations and fail currents
according to NAMUR recommendations.
Input-Output isolation 1500 VAC
• Eliminates measuring errors due to ground loops.
High load capacity
• Only 6.5 V voltage drop over the transmitter
(IPAQ-H) allows for high loads.
Designed for harsh conditions
• Operation temperature: -40 to +85 °C, -40 to +185 °F.
• Excellent EMC performance.
• Durable, shockproof design.
Simple mounting and connection
• For DIN B head or larger.
• Large center hole (dia. 7 mm / 0.28 inch).
5 year limited warranty
• Full access to all features while in operation.
• 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.
On-screen indications and line recording
• Valuable tools for temporary measurements.
IPAQ-H/HX
Main features of IPAQ-H and IPAQ-HX
Accuracy and stability
Sensor or System error correction
IPAQ-H/IPAQ-HX are designed for applications with
standard industrial demands on accuracy. To reach these
demands, the following factors are essential:
Linearity and calibration errors -The use of quality components and precision calibration equipment reduce these
errors, e.g. ±0.1 % of span for RTD inputs.
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 of ±0.1 %/year.
IPAQ-H/IPAQ-HX 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
Sensor output
[Ω/mV]
Tmin and Tmax= End values
of the measuring range.
Standard curve
Measurements with RTDs and other resistances
∆T2
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.
Sensor curve
∆T1
Temp.
Tmin. T1
T2 Tmax.
∆T1 and ∆T2=Deviations
from Standard curve
at T1 and T2.
The transmitter
compensates for the
deviations and transforms
the Sensor curve to a
Standard curve
[°C/°F]
Measurements with thermocouples and plain voltage
IPAQ-H/IPAQ-HX 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, the CJC can be
disabled.
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) are entered, and the transmitter automatically corrects for the system errors. Fig. 3.
Fig.3 Two-point System error correction
Customized linearization and Engineering units
The Customized linearization can be used to create a 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 a maximum of
9 data pairs. Fig. 1a and 1b.
Reading [mA]
20
∆out2
True curve
(corrected)
12
∆out1
System curve
4
Tmin. T1
Sensor
output
0-50 mV
Sensor
Transmitter
Transmitter
output
4-20 mA
Sensor
mA
50
System
20
4
0
kPa
100
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 too low. SmartSense requires an extra
lead inside the thermocouple or RTD. Fig. 5.
For detailed information, see section Theory and Facts.
Fig.1b
mV
∆out1 and ∆out2= Deviations from True curve at
T1 and T2.
(before correction)
Temp.
Fig.1a
Process
value
0-100 kPa
Tmin and Tmax= End values
of the measuring range.
kPa
100
Exemple of a system (sensor + transmitter) with an output linear to
the process value, in spite of a non-linear sensor.
Sensor break monitoring
IPAQ-H/IPAQ-HX 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
IPAQ-H/IPAQ-HX can be set to automatically provide a
recurring output current regardless of the input signal.
The total time for the controlled output is adjustable up
to 30 minutes.
IPAQ-H/HX
Dampening
The dampening function can be used to dampen undesired
instabilities on the input signal.The dampening time is approximately 2 seconds. 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.
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-H/IPAQ-HX such as:
• Measurement configuration: Sensor type, range, sensor
or system error correction, linearization, engineering
units, output settings, filter activation, etc.
Power supply
• Monitoring of sensor status: Sensor break and sensor
IPAQ-H/IPAQ-HX are loop-powered and will work on
isolation (SmartSense).
voltages down to 6.5 VDC (8 VDC for IPAQ-HX), thus
giving good margins for high loads in the current loop.
• On-screen real time presentation of measured values and
Reversed polarity will not damage the transmitter. Fig. 6
output signal in the form of numericals, meters, bar
graphs and line recorder.
Mounting
• Transmitter calibration: Field calibration in one or two
IPAQ-H/IPAQ-HX are designed
Fig.4
points and basic calibration.
to fit inside connection heads
• Documentation: Configuration files can be saved for futype DIN B or larger.
ture use and configuration protocols can easily be
The large center hole, dia.
printed.
7 mm / 0.28 inch, facilitates the
The communication with the transmitter can be performed
pulling through of the sensor
on line, i.e. with transmitter in operation. An isolated and
leads or an insert tube, greatly
Sensor
Ex-approved communication cable is included in the softleads
simplifying the mounting proware kit, IPRO-X.
cedure. Fig. 4.
IPRO 4 is compatible with Windows 3.1, Windows 3.11,
Windows 95 and Windows NT Workstation 4.0. The proWarranty
gram is menu-driven and easy to learn. On-line help is an
IPAQ-H/IPAQ-HX are covered by a 5 year limited warranty. effective tool for the user.
IPAQ-H/IPAQ-HX Configuration scheme
RTD
Input
Pt100
Pt1000
PtX
Ni100
Ni1000
D100
Linearity
Connections
and additional
functions
Thermocouple
(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)
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 AE
W5%Rh-W26%Rh
type B
Pt30%Rh - Pt6%Rh
type E NiCr-CuNi
type J Fe-CuNi
type K NiCr-Ni
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
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
Dampening
Dampening time ~2 s
Output
4 -20 mA 20 - 4 mA
Special
Current
Voltage linear
Customized
linearization
Engineering unit
Min/max correction
IPAQ-H/HX
Specifications
Input
RTD’s and Resistance
Pt100 (IEC751, α = 0.00385)
Pt1000 (IEC751, α = 0.00385)
PtX 10 ≤ X ≤ 1000 (IEC751, α = 0.00385)
3-, 4-wire connection
-200 to +1000 °C / -328 to +1832 °F
3-, 4-wire connection
-200 to +200 °C/ -328 to +392 °F
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 21.6 mA
SmartSense, sensor isolation monitoring
User definable output
3.5 to 21.6 mA
Adjustments
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
Output
Straight,reversed or any intermediate value
4-20/20-4 mA
5 µA
Resolution
Minimum output signal
Measurement/Failure
3.8 mA / 3.5 mA
Maximum output signal
Measurement/Failure
20.5 mA / 21.6 mA
Permissible load, see fig.6
IPAQ-H
795 Ω @ 24 VDC, 22 mA
IPAQ-HX
725 Ω @ 24 VDC, 22 mA
Temperature
-40 to +85 °C / -40 to +185 °F
Ambient, storage
Ambient, operation
IPAQ-H
-40 to +85 °C / -40 to +185 °F
IPAQ-HX
See Intrinsic Safety specifications
General data
Selectable dampening time
~2s
Update time
Isolation In - Out
~ 1.5 s
Isolated version
Humidity (non-condensing)
Intrinsic safety
1500 VAC, 1 min
0 to 95 %RH
IPAQ-HX, ATEX
FM
II 1 G EEx ia IIC T4, T5, T6
Class I, Div. 1, Group A-D, T4
Power supply, polarity protected
Supply voltage
IPAQ-H
IPAQ-HX
Permissible ripple
6.5 to 36 VDC
2-wire
8.0 to 30 VDC
2-wire
4 V p-p @ 50/60 Hz
IPAQ-H/HX
Accuracy
Linearity
Calibration
Cold Junction Compensation (CJC)
Temperature influence
4)
RTD Potentiometer, mV
±0.1 %
1)
T/C
±0.2 %
1)
RTD
Max. of ±0.2 °C / ±0.4 °F or ±0.1 %
Potentiometer
Max. of ±0.1 Ω or ±0.1 % 1)
mV, T/C
Max. of ±20 µV or ±0.1 % 1)
T/C
±0.5 °C / ±0.9 °F
All inputs
Max. of ±0.25 °C/25 °C or ±0.25%/25 °C 1) 3)
1)
Max. of ±0.5 °F/50 °F or ±0.28%/50 °F 1) 3)
Temperature influence CJC 4)
T/C
±0.5 °C/25 °C / ±1.0 °F/50 °F
Instrument calibration output
4-20 mA
±8 µA
Sensor wire resistance influence
RTD, Potentiometer, 3-wire
Negligible 2)
RTD, Potentiometer, 4-wire
Negligible
mV, T/C
Negligible
Load influence
Negligible
Power supply influence
Negligible
RFI influence, 0.15 to 1000 MHz, 10 V or V/m
±0.1% 1) (typical)
Long-term stability
±0.1 % 1) /year
Housing
Material / Flammability (UL)
PC + ABS/V0, Polyamide/V2
Mounting
DIN B-head or larger, DIN rail (with mounting kit)
Connection
Single/stranded wires
≤1.5 mm2, AWG 16
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.
Intrinsic Safety specifications
Specifications
Approval
Classification
IPAQ-HX, isolated
IPAQ-HX, isolated
Demko / ATEX
Factory Mutual (FM)
II 1 G EEx ia IIC T4-T6
IS for use in Class I, Div. 1,
T4/+85°C, T5/+65°C, T6/+50°C
Group A-D, T4/+80°C
Certificate No.
Output/Supply
DEMKO 02 ATEX 132033
J.I. 0D6A8.AX, Drw. 3-7851
Max voltage to transmitter
Ui = 30 Vdc
Vmax = 30 Vdc
Max current to transmitter
Ii = 100 mA
Imax = 100 mA
Max power to transmitter
Pi = 900 mW
Pmax = 900 mW
Internal inductance
Li = 0 mH
Li = 2.5 mH
Internal capacitance
Ci = 0 µF
Ci = 0 µF
Input (Sensor)
Max voltage from transmitter
Uo = 30 Vdc
Voc = 30 Vdc
Max current from transmitter
Io = 25 mA
Isc = 25 mA
Max power from transmitter
Po = 188 mW
Not specified
Max inductance (input loop)
Lo = 50 mH
La = 56.8 mH
Max capacitance (input loop)
Co = 66 nF
Ca = 0.12 µF
IPAQ-H/HX
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
Fig.5
Ordering table
Fig.6
*
*
Permissible RLoad at 22 mA output
RLoad (Ω)
1600
1200
IPAQ-H
800
400
0
4
Pt100/D100
T/C
*SmartSense lead
mm/inches
IPAQ-HX
8 12 16 20 24 28 32 36
Supply voltage U (VDC)
RLoad=(U-6.5)/0.022 (IPAQ-H)
RLoad=(U-8)/0.022
(IPAQ-HX)
Item
Part No.
Transmitter
IPAQ-H, isolated
70IPH00001
IPAQ-H, non-isolated
70IPH00002
IPAQ-HX, isolated (ATEX)
70IPHX0001
IPAQ-HX, non-isolated (Cenelec) 70IPHX0002
IPAQ-HX, isolated (FM)
70IPHX1001
Options
Configuration
70CAL00001
Configuration with 5-point
calibration certificate
70CAL00051
Software and cable
PC Configuration kit
70CFG00092
Software IPRO upgrade
70IPRS0001
Accessories
Surface mounting box
70ADA00008
Rail mounting box
70ADA00009
Head mounting kit
70ADA00012
Rail mounting kit
70ADA00013
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