Casella CEL Tipping bucket rain gauge - Manual (Page 9)

4.2.2 Standard Dual Output Heated Version
1. Release the two catches securing the outer cover to the base and
then carefully lift off the cover.
2. Feed a suitable length of 2 A, 6-core cable, through the grommet.
3. Connect the instrument ends of two of the cores to adjacent
terminals connected to the white leads on the block provided on the
underside of the base unit for the output signal.
4. Connect the free ends of these cores to the first counting device
(see Figure 4 and Chapter 6).
5. Connect the instrument ends of another two cores to the other
adjacent terminals connected to the white leads on the block.
6. Connect the free ends of these cores to the second counting device
(see Figure 4 and Chapter 6).
7. Connect the instrument ends of the remaining two cores to the
terminals with the black and red heater leads.
8. Connect the free ends of these cores to the power transformer in the
hut or enclosure (see Figure 4).
9. Go to Section 4.3.
4.2.3 Dual Output Heated Version That Meets the
Requirements of The UK Environmental Agency
This version is available to special order or the heater unit can be retro-fitted
to an existing unit (please consult the Casella CEL sales department). It is
delivered with dual outputs and heater pre-wired to the Mil Spec external
connector in the underside of the base plate (see Figure 3).
The user must supply a suitable cable with Mil Spec connector
to couple the dual outputs on the rain gauge to the two
counting devices and the heater to the -TR26 24 V power supply
(ordered separately).
1. Connect the plug on the free end of the cable from the counting
device to the connector under the base plate.
2. Use an Allen Key to release the three catches securing the outer
cover to the base and carefully lift off the cover.
Preparation
Page 9 of 16
Tipping Bucket Rain Gauges
User Manual