Installation And Commissioning; Current Output; Service And Maintenance - MANFRED JÜNEMANN TE20 Instructions D'utilisation

1.0 Installation and Commissioning

The temperatur measuring point should be prepared in accordance with the indications given for
the sockets. For more details, see e.g. regulation VDE/VDI 3511 and 3512, sheet 3.
Suitable for sealing are sealing washers to DIN 7603A. The correct tighening torque is depending
on material and shape of the used seal. It shold not exceed 80 Nm. The mounting position should
not be subject to strong vibration and radiation heat.
2.0 Wiring
Electrical connection is made by shielded cabel means of the cable box. Precise wiring schemes
can be seen in the drawings. In addition, wiring details and required power supply are given on
the rating plate.
Significance of applied terminal designations:
Ub+ / OV supply voltage
S+ / S- output signal
Protection / PE cable shield

2.1 Current output

Output signal 0 ... 20 mA / 3 wire-system (LED/LCD)
4 ... 20 mA / 3 wire-system (LED/LCD), 2 wire-system (LCD)
Power supply Ub = 17 ... 30 V DC
Admissible load Ra = (Ub - 17 V) / 20 mA
If current output not used, please connect terminal 2 and 3.
2.2 V Signal
Output signal 0 ... 10 V / 3 wire-system (LED/LCD)
Power supply Ub = 17 ... 30 V DC
Ra ≥ 10 kΩ
Admissible load

3.0 Service and Maintenance

This temperatur gauges with digital display described hereunder is maintenance free. It incorpo-
rates no components which have to be repaired or replaced on the site. Repairs will exclusively
be carried out at the factory.
Depending on working conditions, the temperatur gauges should be checked about once a year
to ensure that they are within their specifications and be adjusted if necessary.
The calibration procedure is as follows:
- s reference for checking and adjusting the measuring span, an adequately accurate temperature
standard is required.
- For readjustment, loosen, with a left-hand rotation, the cam ring (bayonet type), and remove
from casing with the window.
- Set zero point via potentiometer "ZERO".
- Set span via potentiometer "SPAN".
- After having carried out service and maintenance work, lock tightly the instrument with the cam
ring (bayonet type), the windiow and the sealing.
4
Quality for the
future