165-072011 THCD-100 Power Supply Page 7 of 28
2.5. Power Connection Socket
The THCD-100 requires a 24V, 500mA supply to operate. This must be a rectified and regulated direct
current supply, capable of 15W (recommended). Although the THCD-100 has an internal fuse and power
supply overload shutdown protection the supply to the THCD-100 should be protected by fuse or other
suitable electronic method. A standard 5.5mm diameter ‘dc power jack’ is required to connect to the
THCD-100. Connect the positive conductor to the center pin. Connect the negative (0V) conductor to the
outer of the jack.
For convenience, Hastings offers a compatible supply (12-01-169) that, when matched with the US (12-01-
160), Euro (12-01-164) or the UK (12-01-165) plug adapters, converts wall power to specified levels.
2.6. Panel Mounting
A panel mount kit will have been supplied with the instrument. This consists of: 2 screws (M3x6), 2 brackets
and 2 screws (50mm). Fit the M3x6 screws into the side of the unit into the diagonally opposed holes. Do
not tighten these screws, to allow the bracket to slide over the screw head. Thread locking adhesive may be
used but is not required as these screws cannot rotate once the bracket is tightened. Insert the meter into the
panel. A cutout of 3.63” x 1.84” (92 x 45mm) is recommended. Slip the mounting bracket over the screw
head and tighten the 50mm screws. The unit should now be secure.