8
Model DS1200-PDT - Dewpoint Hygrometer
DS1200 Mounting
• Only technicians who are familiar with the technical terms, warnings, and instructions
in the manual and who are able to follow these should connect the DS1200.
• Should there be any doubt as to the correct handling of the DS1200, please contact
your local distributor.
• Mounting and connection of the DS1200 should comply with the national legislation
for the mounting of electric materials, i.e. wire cross-section, protective fuse, and
location.
Descriptions of Input / Output and supply connections are shown in the block diagram
on
page 9
and the instrument top label.
• The maximum size of the protective fuse is
5A
and, together with the power switch, it
should be easily accessible and close to the DS1200. The power switch should be
marked with a label indicating it will turn OFF the voltage to the DS1200.
• To be mounted in front panels. The included rubber packing must be mounted between
the panel cutout and the display front to obtain IP65 (NEMA 4) ingress protection.
Installing the Instrument into a Panel
• Make a cut-out in the donor panel 92.0/92.8 x 45.0/45.6mm (DIN 43700).
• The maximum panel thickness is 10mm and, if an effective IP65 weatherproof seal is
required, the minimum recommended panel thickness is 1.6mm.
• Pass the instrument cabinet through the cut-out in the donor panel and slide the panel
clamp over the instrument, from the back.
• Turn the Red panel clamp screws until the instrument is clamped in position. The
screws must be tightened sufficiently to affect a seal between the front of the donor
panel and the back of the instrument bezel, but never over tightened to the point of
fracturing the panel clamp or instrument case.
NOTE Wires are retained by screws. Ensure that the exposed section of the wire is fully
inserted and that no loose strands are exposed.
Wiring DS1200 Power Supply
• Connect the power supply cable to the 2 terminal block marked 31 and 32 no polarity.
• The power supply should be 22 to 253 VAC @ 50/60Hz or 20 to 300 VDC.
PDT Transmitter Cable
• Connect the transmitter cable to connector pins 45 and 46, ensuring that the red wire
connects to pin 46.
See Diagrams on pages 9 and 10.
Observe that the cage is securely clamped onto the bootlace ferrules on the cable
provided.
• Route the sensor cable to the intended site of the sensor.
Note : - Do not install the transmitter at this time.
Wait until the commissioning stage as described later
