Device Specification; Rtm 430; Warning Lamp; Exhaust Sample Probes - Bosch RTM 430 Descripción Del Equipo Y Del Funcionamiento

6.

Device Specification

6.1

RTM 430

7
6
Figure 1: RTM 430
1 Connecting pipe for exhaust-gas sample hose
2

Warning lamp

3 Anti-tamper seal position for calibration office
4 Cover for measuring chamber receiver
5 Connecting pipe for workshop extraction
6 Cover for measuring chamber sender
7 Connector bushing for connecting cable to ESA, BEA or EAM
6.2 Warning lamp
The LED lights up red, when the RTM 430 is ready for operation.
6.3

Exhaust sample probes

Car exhaust sample probe
Probe inside diameter = 10 mm (delivery specification)
(suitable for exhaust internal diameter <70 mm)
Truck exhaust sample probe
Probe inside diameter = 16 mm (special accessories)
(suitable for exhaust internal diameter >70 mm)
1
2
3
5
1 680 790 044
1 680 790 041
7.

Preparation for measurement

Observe safety notes on pages 14 and 15!
7.1

Vehicle

– The engine must be warm (according to manufacturer's
specifications).
– No leaks in exhaust line.
– Engine settings such as, for example idle speed, start of
delivery, fuel quantity and stop for full-load delivery must meet
manufacturer specifications.
4
7.2 RTM 430
i To ensure that the exhaust measurement is performed
correctly the RTM 430 must not be positioned directly in the
exhaust-gas stream (directly in front of the exhaust). The
exhaust sample hose must not be kinked!
– Before the measurement the exhaust sample probe and the
exhaust sample hose must be checked for signs of damage and
clogging.
– If available, fit the hose for exhaust-gas recirculation- (special
accessories) on the connecting pipe (Fig. 1; Pos. 5) of the
RTM 430 and connect to the extraction system.
i In order to rule out wrong measurements, the suction output
of the extraction system must not drop below 20 m/s! Exhaust
gas is to be extracted via an extraction system with funnel
only.
– Replace the oil dipstick in the engine housing with an oil
temperature gauge. To do so, set the sealing cone of the oil
temperature gauge to the oil dipstick's insertion depth.
– Mount the wheel speed sensor and connect.
– Do not insert the exhaust sample probe into the exhaust pipe
until the RTM 430 has warmed up and only after several
cleaning rev-ups of a warm engine.
i The RTM 430 has a warm-up time of 4 minutes after switch
on. Exhaust measurements cannot be made during this
period.
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