Connecting To Secondary Current Transformer (Ct); Specifications - AEMC 8335 User Manual

It facilitates automatic sensor recognition and probe ratio programming for both 1
Amp and 5 Amp output probes. Additionally, the adapter box can be used directly
in series in a 5 Amp circuit.
WARNING: This adapter is rated EN 61010, 300V, CAT III and permits the
use of standard current probes with either a 1 Amp or 5 Amp output.
The input connections accept either Ø 4mm male plugs or rigid leads between 1
and 2.5mm inserted in the side hole after pressing the spring loaded connector
2
down to expose the hole.

3.6.1 Connecting to Secondary Current Transformer (CT)

WARNING: Use caution when connecting to a secondary current
transformer.
1. Short the two leads of each secondary current measurement transformer.
2. Never open a secondary circuit of a CT if its primary circuit is connected to a
supply voltage. In any case, disconnect the primary measurement transformer
circuit from the supply network.
3. Connect each CT secondary to the input of the 5A adapter in the correct order
(ground on P2) and the right phase order L1, L2, L3.

3.6.2 Specifications

Note: Currents < (Primary x 5) ÷ (Secondary x 1000) will be displayed as zero
on the PowerPad
Range:
Output / Input Ratio:
Dimensions:
Weight:
Impermeability:
Electrical safety:
Operating Temperature: 5° to 131°F (-15° to 55°C), 0 to 90% RH
Storage Temperature:
Reference Conditions: 73°F (23°C) ±3K, 50 to 85% RH, 50/60Hz ±2Hz
26
(add PowerPad
with this probe
®
5A
0.2mV/mA
6.00 x 3.74 x 3.38" (153 x 95 x 86mm)
1.98 lbs (900g)
IP50 per EN 60529 (electrical IP2X for the terminals)
Double Insulation, 300V Cat. III
Pollution Degree 2 per IEC 61010-1
-40° to 185°F (-40° to 85°C), 0 to 90% RH
accuracy ±0.5% ± 1ct)
®
AC
Power Quality Analyzer Model 8335