Vaisala RDP100 - Manual (Page 12)

HMDW110 Power Supply Requirements
HMDW110 series transmitters are designed for a supply voltage range of
10 ... 28 VDC. The minimum required voltage depends on the loop resistance
(0 ... 600 Ω) as shown below.
Troubleshooting
Problem Possible Cause Solution
RDP100 does not turn
on. Incorrect wiring. Check and correct wiring.
Wrong input voltage. Check and correct.
Display powered through
ExtPWR+ terminal but
jumper not installed. Install jumper in location
1-2 or 2-3 according to
wiring instructions.
Display does not find
the measurement
instrument. Incorrect wiring. Check and correct wiring.
Connected instrument not
compatible. Check according to list of
compatible instruments.
Connected instrument's
serial settings are not
19200-8-N-1. Check and correct.
Instrument is DMT143 with
firmware version that is
older than 1.1.5. Contact a Vaisala Service
Center for a firmware
update.
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