441
Model Code Page
31. CareTel
1. 4. 1997
6000--8750 360 1
CareTel (option) can receive questions from a remote GSM phone and send answers to the GSM phone about different trac-
tor functions. One condition is that the GSM phone is in the phone service area and another that the GSM phone has a short
message (SMS) function. The messages can also be received with a computer which is connected to the phone. In addition,
CareTel has been programmed to send an alarm message automatically to a selected phone number/numbers, if information
from one sensor is in the critical point and the tractor can fail. CareTel data logger includes specified information about the
tractor. This information has been fed into the data logger in the factory.
CareTel measures, gathers and sends information about the following tractor functions:
--- Engine coolant temperature (C˚)
--- Transmission oil temperature (C˚)
--- Engine torque, 8750 Σ ---power only (as percent of the total torque)
--- E n g i n e re v s (R P M )
--- PTO shaft revs (RPM)
--- Pressure in low pressure circuit (BAR)
--- Lubricating oil pressure in transmission (OK/LOW)
--- Engine oil pressure (OK/LOW)
--- Σ ---power (ETB light) (ON/OFF)
In addition, CareTel shows the tractor serial number and running hours at the measuring time. CareTel shows also if the trac-
tor engine is running or not (*).
Picture 1. CareTel system.
1. Data logger
2. GSM phone (Nokia GSM 880, 2110 or 5000)
3. Transmission oil temperature sensor
4. Transmission oil pressure sensor
5. Low pressure circuit pressure sensor
6. Rotation speed sensor of PTO shaft
7. Engine coolant temperature sensor
8. Engine oil pressure sensor
9. Alternator (engine revs, running hours)
10 Sigma---Power control unit, 8750
11. GSM phone antenna
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