3.4 - Probe cleaning system (option)
M2007/3en
TCT-2301 Installation instructions
41
©BTG 2004
If the transmitter is submitted to vibration we recommend using rein-
forcement. See fig 28 on page 35.
3.4.3.1
Probe cleaning device connections
Three connections are needed to make the cleaning device operational.
Connection requirement:
Water: Use standard water quality.
Air: 4-8 bar (58-100psi) or at least half the process pressure.
1. Connect water to the membrane valve. The connection is 8.5mm
(0.33 in)
2. Connect air to the solenoid valve by 6/4 (1/4 in) hose.
3. Connect the control signal and 24V DC supply from the TCT-2301
electronics box. See section 3.3.5:
Main power supply connections
.
3.4.4
Controlling the cleaning device
All settings to control the cleaning device are made from the TCT-2301
electronics box. Instructions can be found in section 4.6.2.1:
How to
change settings and collect samples
.
Fig 32 Cleaning device
connections
Water inlet
Water outlet
Control signals
and 24 V DC from
TCT-2301
electronics unit
POWER
VALV
E
VA
LV
E
VA
LV
E
DO1
+COM
GND
+24V
Air connection