Temperature Control
The Siemens Liquid Injection Valve Heater Module probe is connected to a Base Detector
Personality Module (DPM) Temperature Controller. Most Base DPM boards have two
temperature control circuits so there is normally an extra one for the SLIV. If not, then a
Temperature Control Module (TCM), part number A5E02645925002, is added to the analyzer.
One of the Low Wattage relay pairs on the PECM is used to control the SLIV heater. A cable
from the DPM to the PECM is used to control the low wattage relay on the PECM. This cable
is not shown in this diagram.
Liquid Injection Valve Installation
Heater and Probe Connections
Two-Valve Installation Shown
Wiring from Heater Module
Probe Connection to DPM
Heater Connection to H3 or H4 PECM
Probe Wiring Diagram
Figure 4-4 SLIV Heater and Probe Connections in the Electronics Cabinet
Valves
4.2 Liquid Injection Valve
Maxum II Valves and Oven Components
34 Service Manual, 10/2018, A5E42019844001
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