Vaisala Drycap DMT152, User Manual

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5. Connect the wires of the connection cable. When using cables provided with DMT152, see
Wiring (page 15) and Power Supply Requirements (page 19) .
6. Plug in the cable to the transmitter. Be sure to use the correct connector; see Wiring
(page 15) .
7. Cover the unused connector on the transmitter with the rubber plug that is attached to
the transmitter.
8. Turn on the power supply. DMT152 performs self-diagnostics at startup, and the output is
frozen for several minutes. The transmitter will output an approximated reading after one
minute, but accurate measurement will only be available after the startup procedure is
complete.
Normal operation is typically achieved in 10 … 15 minutes. If the measurement environment
changes during the startup, the startup may take up to 15 minutes.
The transmitter always performs the self-diagnostic procedure and sensor purge
when starting up. Keep the transmitter continuously powered to optimize its
measurement performance and availability.
4.3 Wiring
Table 4 Standard Wiring Pinouts and Wire Colors
Pin Connector I Connector II Wire Color
1 VDC VDC Brown
2 Signal Ch 1+ RS-485 - / B White
3 GND GND Blue
4 Signal Ch 2+ / LED RS-485 + / A Black
Chapter 4 – Installation
15