3 Intended use .................................................................................................................................................. 4
6.1 Control ....................................................................................................................................................... 6
9 Transportation and storage ....................................................................................................................... 11
10 Scope of delivery ........................................................................................................................................ 11
Appendix A. Dimensions .................................................................................................................................. 11
ITP16 is a universally applicable process indicator and can be used with various input
signals: RTD, TC, linear voltage signal. The device requires 24V DC auxiliary voltage. It is
designed for control and monitoring of industrial processes.
2 Specifications
ITP14 can be ordered in two versions. They
differ in the display color. Ordering key:
Galvanic isolation from each group to enclosure 500 V
Galvanic isolation between groups 500 V
2.2 Environmental conditions
The device is designed for natural convection cooling. It should be taken into account when
choosing the installation site.
The following environment conditions must be observed:
− clean, dry and controlled environment, low dust level
− closed non-hazardous areas, free of corrosive or flammable gases
Improper installation can cause seriou s or minor injuries and damage the device.
Installation must be performed only by fully qualified personnel.
Switch on the power supply only after the wiring of the device has been completely
performed
►
4.5 V to prevent the device damage. Disconnect the sensor in case of higher voltage.
►
Signal cables should be routed separately or screened from the supply cables.
Only a shielded cable may be used for signal li nes.
3 Intended use
The device may only be used in the manner described in this user guide, properly installed
and in accordance with the specification. Damages caused by disregarding the instructions
of this manual are without liability. Non-observance of the safety guidelines may result in
damage to the device and injury to personal.
Improper use
Any other use is considered improper. Especially to note:
−The ITP16 may not be used for medical devices that sustain, monitor or otherwise affect
human life or health.
−The device may not be used if the environmental conditions (temperature, humidity etc.)
are not within the limits indicated in the specification.
−The device may not be used in potentially explosive environment or in an atmosphere
with chemically active substances.
4 Functions
A 4-digit LED display with 14 mm character height is located on the front of the device to
display the process value or error messages in opera-tion (see 6) and programming
parameters in programming mode (see 7). The function buttons are positioned on the rear
part of the device.
Main functions:
CAUTION
CAUTION
− Analog input signals according to Table 2.2
− Measuring and displaying of a process value
− Linear voltage signal scaling
− Adjustable decimal point position
− Display range -999…9999
− Square root function (for special transmitters)
− Digital filter
− Alarm function
− Error indication when the input signal is out of range
− Error indication when wire break or short circuit
5 Installation
The device is designed for panel mounting in a borehole of Ø22.5 mm (see Appendix A for
dimensional drawings).
Carefully position the supplied gasket on the display rear surface. Insert the cylindrical body
of the device into the borehole and tighten the nut from the rear side of the panel.
5.1 Wiring
Switch off the device before checking the sensor and connection lines.
As a precaution against inadvertent current reversal on output, a parallel diode (UVD
≥ 1.3U, I
≥ 1.3I) is usually included in the output circuit.
DO-
K
_
U
U
+
VD
DO+
Table 5.1 Terminal assignment
Power supply
NOTICE
Table 5.2 Sensor cables
type
RTD 100 m 30 ohm
5.1.2 Output
The NPN transistor output is designed to control the low voltage relay up to 42 V DC / 200
mA
VD
Cable length, max.
Fig. 5.8 NPN transistor output
(each wire), max.
section for 3-wire
Requirement
6 Operation
After the device is powered on the operating mode is activated. In this mode the measured
signal is scaled and displayed. The signal type must be selected in the parameter in.t “Input
signal”. The complete list of the programming parameters is shown in Table 7.2.
The input signal is digitalised, the square root calculated (if the function is enabled), the
signal scaled and displayed. The scale factor is calculated based on the parameters di.Lo
“Lower measuring limit” and di.Hi “Upper measuring limit”. The display decimal point can be
specified in the parameter di.P. For other signal processing functions see 6.2 and 6.3. For
displayed errors see Table 6.1.
6.1 Control
ON/OFF control is implemented with the NPN transistor output (see 5.1.2). The parameters
SP.Lo “Lower setpoint limit” and SP.Hi “Upper setpoint limit” specify the control limits. The
control function can be selected in the parameter Cnt:
The safe output state can be selected in the parameter out.E.
Note:
Switching hysteresis: 0.05 x (SP.Hi – SP.Lo).
6.2 Alarm
If the control function Cnt is set and the alarm function d.FnC = ON, the display blinks with a
frequency of about 2 Hz when the output is switched on (see Fig. 6.1).
Fig. 6.1
6.3 Filter
Undesirable signal fluctuations can be suppressed through the adjustable filter in the
parameter td “Filter time constant” (see Fig. 6.2 and Table 7.2).
The filter time constant can be set within the range 0…10 seconds. The higher the value, the
slower the display reaction to changes of the input signal and the lower the susceptibility to
interference is. The filter is deactivated if td = 0.
The device may have been damaged during transportati o n.
Report the transport damage immediately to the shipper and akYtec GmbH!
9 Transportation and storage
Pack the device in such a way as to protect it reliably against impact for storage and
transportation. The original packaging provides optimum protection.
If the device is not taken immediately after delivery into operation, it must be carefully stored
at a protected location. The device should not be stored in an atmosphere with chemically
active substances.
NOTICE
Permitted storage temperature: -25…+55 °C
Check the device for transport damage and completeness!
10 Scope of delivery
− ITP16 1
− Gasket 1
− Mounting nut 1
− User guide 1
Appendix A. Dimensions
Fig. A1Fig. A2
To prevent the device spinning, the borehole in the front panel must correspond to the
dimensions in Fig. A.2.