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UNIFLEX-CI/CB
Universal Transmitter
for flexible use
Pt100, Thermocouple, Resistance transducer,
Potentiometer, Voltage, Current
Temperature linear or linear to specification
Special functions
Local setting via frontkeys or PC
Comprehensive galvanical isolation
Primary switching power supply
SENSOR SIGNAL CORRECTION
Sensor signal correction is used to
match sensor and transmitter for
tolerance-compensated readings.
PROFILE
For thermocouple measurement, the
cold-junction compensation is provided
with a built-in sensor.
Resistance thermometers can be
connected in 3- or 4- wire configuration.
Signals (thermocouples included) can be
linearized with up to 8 segments.
The UNIFLEX CI/CB transmitters provide
solutions for measurement and
monitoring in process control and other
industrial applications. Temperature,
voltage, current, and resistive signals
can be connected without the need for
any hardware changes. In addition, the
transmitters feature an integrator
function, e.g. for analogue/pulse
conversion, sample-and-hold tasks, and
also differentiation of the input signal are
possible.
The transmitters meet the market
requirements regarding reliable EMC
protection, flexibility and reduced stock
keeping. The version with built-in display
allows configuration and parameter
setting via the front panel keys.
With a PC and connecting adapter, both
the indicating version (CI) as the ”blind”
version (CB) can be configured and
adjusted remotely.
This allows documentation of the
adjusted parameters, as also reading of
the input signal and parameters during
operation.
Fig. 1 Sensor signal correction
100%
The version with extended computing
facilities provides additional functions:
–
Integration
–
sample-and hold and
–
differentiation.
The functions are triggered via a control
input which replaces the resistive input.
Correction upper end
0
Correction lower end
Signal OUT
0
100%
Two different corrective methods are
available
–
Correction with lower and upper
input signal within the selected
span or
–
Setting of values from the
calibration table (scaling).
Subsequent corrections during operation
are possible with both versions, by
means of the front panel key(s). The
curve can be adjusted for offset and for
gain.
INPUT CIRCUIT MONITOR
Resistance thermometer, thermocouples,
resistance transducers are always
monitored for break.
Signalling options
–
red LED in front (lights up on
alarm)
–
via switching output (selection of
energized or de-energized or not
operational)
DESCRIPTION
–
via the output signal (selectable for
upscale or downscale).
The transmitter has independent signal
inputs for thermocouples, resistive
temperature sensors, resistance
transducers, DC-voltage and DC-current.
Fig.3 Dimensions (in mm)
LIMIT SIGNALLING
–
Min. and max. alarm (adjusted in
engineering units, together with
computing function in %).
Adjustable between -10 and 110 %
referred to the output signal span.
40
Hysterisis
–
7
8
9
10
11
12
7
8
9
10
11
12
1
2
3
1
2
3
1
999
programmable in engineering units or
in % in the range from 0,0... 99,9
referred to the output signal span.
Signal suppression (response delay)
–
22
24
19
21
22
24
19
21
2
0
23
2
0
23
programmable from 0... 999 s. All
alarms shorter than the selected
delay are ignored.
Wandmontagelaschen herausgezogen
Signalling
–
Pull-out tabs
red LED in front panel (lights up on
alarm)
TECHNICAL DATA
–
switching output (selection of
energized or de-energized or no
operation)
RESISTANCE THERMOMETER
PT100 DIN IEC
INPUT (configurable)
Resolution:
approx. 20 000 steps
referred to full span.
Measuring cycle:
200 ms
1)
Start [°C
End[°C]
Min
Sensor current
FILTER
Via built-in mathematical filter. It is
adjustable for time constant and
bandwidth.
-200
+650
50 (25) K
< 0,4 mA
Connection
Three- and four-wire configuration
THERMOCOUPLES
Lead resistance:
≤
30
Ω
per wire
Fig. 2 Filter function
Measurement limits (TC group 1)
Input resistance:
1M
Ω
Type
Start [°C]
End [°C]
x
E
-100
1000
Linearization
built-in with optimized positioning of
supporting points for smallest error
J
-100
1200
OUT
L
-100
900
K
-100
1370
Conformity error:
≤
0,1 K
IN
N
-100
1300
Filter bandwidth b_F
T
-100
400
Input circuit monitor:
for break
t
W (C)
0
2315
Display error:
≤
1K±1d
1)
The bandwidth is the tolerance above
and below the process value, in which
the filter is active. Changes of the
process value larger than the adjusted
bandwidth are not filtered and will be
transferred directly to the output.
Smallest span 4(2) mV
RESISTANCE &
POTENTIOMETRIC TRANSDUCER
Measurement limits (TC group 2)
Type
Start [°C]
End [°C]
1)
Range
Start
End
Min
Measuring current
R
0
1760
1
0
400
20 (10)
ca. 0,4 mA
S
0
1760
2
0
1500
50
ca. 0,1 mA
INTEGRATOR
Thermocouple as DC signals can be
integrated with variable time constants.
*)
B
(0)400
1820
Values given in
Ω
Smallest span 2 mV
Input resistance:
1M
Ω
Connection
Transducer:
3-wire connection, current
through resistor
DIFFERENTIATOR
Supplies the differential quotient of the
input signal during a timed period.
Application include the provision of a
tendency or trend signal for feed-forward
control, signaling of sudden changes in
the process, etc.
Linearization
built-in (temperature linear) with
optimized positioning of supporting
points for reduced error.
Resistance:
3 or 4-wire connection
Lead resistance:
≤
30
Ω
per lead
Conformity error
for TC-group 1:
≤
0,2 K
for TC-Group 2:
≤
0,5 K
*)
Input resistance:
1M
Ω
Input circuit monitor:
for break
SAMPLE-AND-HOLD AMPLIFIER
The sample-and-hold amplifier stores
input signals which are only present for a
short time. Typical applications are:
storage of discontinuous set-values, and
storage of signals in the case of a fault in
the signal source.
Input circuit monitor
for break and reversed polarty
Cold-junction-compensation
internal or external (0...60 °C) selectable
Display error:
≤
3K±1d
*) Linearisation for type B from +400 °C
onwards
1)
Figure in brackets with approx. twice the
effect
2
UNIFLEX CI/CB
Fig. 4 Electrical connections
DIRECT VOLTAGE mV signals
Range
Start
End
Min.
Thermocouple
mV
1
-3
23
2,5
1
2
7
1 1
0
12
89
2
-11
69
9
Digital control input
1)
Schaltausgang
Relay output
max. 250 VA, 230 VAC
2
3
3
0
160
15
Input resistance:
1M
Ω
1)
Pt 100
7
1
2
3
V signals-via internal voltage
1)
Potentiometer
7
1
2
3
Range
Start
End
Min.
Hilfsenergie
Power Supply
Spannung
Voltage
1
-0,6
4,4
400 mV
2
-2
13
1000 mV
2
8
U
I
U/I
Strom
Current
NL
(+ -)
3
0
30
2000 mV
9
2
divider
Input resistance:
approx. 100 k
Ω
1)
1)
Nicht mit allen Versionen möglich
Not possible with all versions
Range
Start
End
Min.
STANDARD CURRENT SIGNAL
0...20 mA or 4...20 mA
Output sense: direct or inverse
DYNAMIC RESPONSE
For a step change from 10 to 90 % of input signal
1
-1
7,3
1
2
-3
22
2
3
0
50
4
Output follows input:
approx. 630 ms
DIRECT CURRENT mA
Input resistance:
approx. 18
Ω
Controlled range:
-0,3...23 mA
Settling time
after external ”Hold”
signal: 100 ms + max. 600 ms
Load:
0...700
Ω
Load effect:
≤
0,1 % / 100
Ω
SWITCHING OUTPUT
One relay with potential-free
change-over contact.
ADDITIONAL LINEARIZATION
Possible for all input signals -except
potentiometric transducers- with
8 segments respect. 9 supporting points.
STANDARD VOLTAGE SIGNAL
0...10 V parallel to current signal
Output sense: direct or inverse
Contact rating:
max. 250 VAC, 1 A min.
10 V, 0,1 A; Energized or de-energized
operation configurable.
Controlled range:
- 0,15...11,5 V
CONTROL INPUT
designed for external potential-free
contact and small currents.
Min. duration of control signal:
≥
100 ms
Load:
≥
2k
Ω
(not continuous short-circuit
proof)
Operating mode:
selectable for input
circuit monitor and/or limit signalling.
Load effect:
negligible with
≥
2k
Ω
Resolution:
13 bit (9000 steps)
DISPLAY
–
PERMISSIBLE INTERFERENCE at
input
(to DIN IEC 770 6.2.4)
Common mode suppression: negligible
Series mode: no effect up to
450 mV
rms
for TC (type S)
1V
rms
for mV (0...50 mV)
750 mV
rms
for Pt100 (0...100 °C)
10V
rms
for DC 0...4V / 0...5 mA
Version with indicator
(UNIFLEX
CI) 4-digit LCD, 7 mm high, range
of display -200...-99,9...0...9999.
CHARACTERISTIC
linear
Conformity error
Incl. factory calibration error
≤
0,06 % of fsd
–
Green LED: ready for operation
–
Red LED: input circuit monitor or
limit signaller activated.
Factory calibration
at23°C;RT±1K,TC±2K
–
Version without indicator
(UNIFLEX CB)
Hysterisis:
≤
0,02 % fsd
–
Green LED: ready for operation
OUTPUT
The required adjusted output signal is
activated via software. The current and
voltage output signals are always
available in parallel.
–
Red LED: input circuit monitor or
limit signaller activated.
Reproducibility:
≤
0,01 %
Input circuit monitor
Output action selectable upscale or
downscale.
–
Blinking mode LED’s for sensor
signal correction mode.
Synchronism error:
≤
0,5 %
1)
Figure in brackets with approx. twice the
effect
UNIFLEX CI/CB
3
OPERATION
Fig.5 Software setting CON 1
CON 1
Version with indicator
Configuration, Parameter setting and
input signal correction are menu-guided
via three front-panel keys.
Configuration word 1
Display and input circuit monitor
°C / upscale ( > 100 %)
°C / downscale ( < 0 %)
0
Version without indicator
Input signal correction is done by means
of a single front key and a digital
voltmeter for the output signal.
1
2
F / upscale ( > 100 %)
3
F / downscale ( < 0 %)
Switching output
Input circuit
alarm
Sensor type
Thermocouple with internal CJC
Prinziple
Limit
signalling
PC-based operation
For both versions, additional software is
available (Engineering tool based on
Windows) for configuration, parameter
setting, and input signal correction.
0
0
1
2
3
4
5
x
o
o
Thermocouple with external CJC
1
De-ener
gized
x
Pt 100 DIN
2
x
x
x
Resistance input
3
o
Potentiometric transducer
4
Ener-
o
x
Direct voltage
5
gized
x
x
Direct current
6
INPUT-SIGNAL
Code
Potentiometer and
resistance
3-w/pot 0...
Direct voltage
Current
Thermocouple
Pt100 DIN
3-Ltr.
VDC
mA DC
-200...650 °C
400
Ω
L -100... 900 °C
J -100... 1200 °C
K -100... 1350 °C
N -100... 1300 °C
S 0... 1760 °C
R 0... 1760 °C
T -100... 400 °C
W(C) 0... 2315 °C
E -100... 1000 °C
B
0
1
2
3
4
5
6
7
8
9
- 3... 23 mV
-11... 69 mV
0... 160 mV
- 0,6...4,4 V
- 2... 13 V
0... 30 V
- 1... 7,3 mA
- 3... 22 mA
0...50 mA
SERIAL INTERFACE
RS 232C with active adapter
3-w/pot 0...
1500
Ω
4-Ltr.
-200...650 °C
4-w.
0...
400
Ω
0... 1500
Ω
4-w.
COMPUTING FUNCTIONS
0... 1820 °C
FUNCTIONS without CONTROL
INPUT
–
Fig. 6 Software setting CON 2
CON 2
Input signal correction
Configuration word 2
–
1st-order filter with adjustable
operating range (bandwidth)
Output signal
–
Linearization with 8 segments
Mains frequenzy suppression
50 Hz
60 Hz
0
1
2
0...20 mA
0
1
–
4...20 mA
√
x, where
√
-x=0
0...10 V
x
2
–
Characterization
Computing functions
not possible
0
1
2
With scaling
0
1
2
x
None
FUNCTIONS with CONTROL
INPUT
–
Input signal correction
–
1st-order filter with adjustable
operating range (bandwidth)
–
Linearization with 8 segments
–
√
x, where
√
-x=0
–
X2
–
Integrator
with adjustable time
constant (t=0,1...999,9 min.) and
adjustable input offset (P1).
Formula: y(t)=Y(t-T
r
)+T
r
/t*((x+P1)
The control input resets integrator to zero.
–
Differentiator
with adjustable time
constant (t=0,1...999,9 min.) and
adjustable gain (P1).
Formula:
y(t)=T/(t+T
r
)*(y(t-T
r
)+P1*[x(t)-x(t-T
r
)]
The control input resets differentiator to
zero.
–
With customized linearization
√
x
Sample-and-hold *
3
4
5
Integrator
*
* not possible with resistive input
Differentiator
*
POWER SUPPLY
Behavior with mains failure
no loss of configuration data.
AC(DC) SUPPLY
85...264 VAC
1)
,50or60Hz
Power consumption:
approx. 5,3 VA
GALVANICAL ISOLATION
Between input and output and power
supply.
UNIVERSAL SUPPLY
18...50 VDC / 18... 40 VAC
TEST VOLTAGES
Between input and output: 500 VAC
Between mains and in-/output: 3,75 kVAC
Consumption:
approx. 1,9 W/2,9 VA
POWER SUPPLY EFFECT
negligible within specified limits.
Sample-and-hold
Activated control input holds
output signal according to process
value.
1)
also suitable for DC
2)
In field housing max. + 54 °C
4
UNIFLEX CI/CB
ENVIRONMENTAL CONDITIONS
ORDERING INFORMATION
If not specified otherwise, the transmitter will be
delivered with the following standard settings.
OPTIONAL ACCESSORIES
Description
Order-no.:
TEMPERATURE LIMITS
For specified accuracy:
0...55 °C
Aczive adapter for
connection of UNIFLEX
CI/CB to a RS232 interface
of a laptop or PC
9407-998-00001
UNIFLEX CI/CB Standard version
CON1 0200; CON2 0001.
Range 0...150 °C, Pt100, 3-wire
configuration. Input circuit monitoring
upscale action. Switching output
de-energized, set to span start and end.
Hysterisis 5%, suppression 2s, filter
time 0,1 s, bandwidth 5 °C.
2)
For operation:
-10 ... + 60 °C
Engineering tool for setting
of configuiration and
parameters, read-out and
documentation, base
Windows (3.11).
Licence (1)
Storage:
-20 ... + 70 °C
9407-999-000801
TEMPERATURE EFFECT
(within -10...+ 60 °C)
On span start
R - input:
≤
0,03 % / 10K
TC/U/I - input:
≤
0,04 % / 10K
Field housing for UNIFLEX
transmitter. Protection IP 67,
with transparent lid. Cable
gland PG 13,5.
9407-290-01001
Version with extended computing
function
CON1 0540; CON2 0000
Range 0...10 V, limit alarm not active, set
to span start and end. Hysterisis 5%,
suppression 2 s, filter time 0,1 s,
bandwidth 0,5 V.
Time constant 0,1 min.
Input offset/gain P1 1,0
On span
R - input:
≤
0,05 % / 10K
TC/U/I - input:
≤
0,05 % / 10K
Fig. 7 Field housing IP 67
EFFECT of internal cold junction
compensation
≤
0,13K/10K
RELATIVE HUMIDITY
90 % rH, no condensation
GENERAL
HOUSING
Polycarbonate, glasfibre reinforced,
self-extinguishing
SHOCK AND VIBRATIONS
DIN IEC 68-2-6/Fc and DIN 68.2.29/Eb
DIMENSIONS
93x111x40mm
ELECTROMAGNETIC
COMPATIBILITY
Complies with EN 50081-1 and EN
50082-2 for unlimited use within rural
and industrial areas.
MODE OF PROTECTION
Housing and terminals IP30
ELECTRICAL CONNECTION
screw terminals for max. 2,5 mm
2
WEIGHT
0,225 kg net
EXPLOSION PROTECTION
No explosion protection.
MOUNTING
Wall or 35 mm rail to DIN 46277
SAFETY CHARACTERISTICS
According to EN 61010-1
MOUNTING POSITION
Vertical, dense mounting and
temperatures
≥
50 °C forced ventilation
is recommended.
Excess-voltage category III
Pollution degree 2
Operating voltage range 300 V
ACCESSORIES
Operating notes:D/E/F
9499-040-43801
Protective class I
CE-marking
According to European directives for
”Electromagnetic compatibility” and
”Electrical equipment use within
specified voltage limits (safety
characteristics).
UNIFLEX CI/CB
5
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