Ascon tecnologic KM Series Engineering Manual

KM_
CONTROLLER AND
MINI-PROGRAMMER
Engineering Manual
Code : ISTR-MKM2-3ENG07 - Vr. 0.0 (ENG)
1. OuTLINE DIMENsIONs
Instrument with non removable terminals
48
PV
AT
2. CONNECTION DIAGRAM (mm)
Ascon Tecnologic - KM series - ENGINEERING MANUAL -Vr.0.0 PAG. 1
48
11 14
2.1 Mounting requirements
This instrument is intended for permanent installation, for
indoor use only, in an electrical panel which encloses the
rear housing, exposed terminals and wiring on the back.
Select a mounting location having the following characteristics:
1. it should be easily accessible;
2. there is minimum vibrations and no impact;
3. there are no corrosive gases;
4. there are no water or other fluid (i.e. condensation);
5. the ambient temperature is in accordance with the
operative temperature (0... 50°C);
6. the relative humidity is in accordance with the instrument
specifications (20... 85%);
The instrument can be mounted on panel with a maximum
thickness of 15 mm.
When the maximum front protection (IP65) is desired, the
optional gasket must be monted.
2.2 General notes about wiring
1. Do not run input wires together with power cables.
2. External components (like zener barriers, etc.) connected
between sensor and input terminals may cause errors in
measurement due to excessive and/or not balanced line
resistance or possible leakage currents.
3. When a shielded cable is used, it should be connected at
Removable
one point only.
terminals
4. Pay attention to the line resistance; a high line resistance
8
may cause measurement errors.
2.3 Inputs
18
2.3.1 Termocouple Input
+
1
_
2
External resistance: 100Ω max., maximum error 0.2% of span.
Cold junction: automatic compensation between 0... 50°C.
Cold junction accuracy: 0.1°C/°C after a warm-up of
20 minutes.
Input impedance: > 1 MΩ.
Calibration: According to EN 60584-1.
Note: For TC wiring use proper compensating cable
preferable shielded.
2.3.2 Infrared sensor Input
+
1
_
2
External resistance: not relevant.
Cold junction: automatic compensation between 0... 50°C.
Cold junction accuracy: 0.1°C/°C.
Input impedance: > 1 MΩ.
Exergen