Loop impedance testing [mA] –
Measures circuit loop
impedance
Note:
Third lead can be connected. The third lead will enable reverse
polarity detection
MEASUREMENT:
Press TEST to start. L-E tests start automatically.
Supply:
L-E
= 50 Vac - 280 Vac
L-L, L-N
= 50 Vac – 480 Vac
Zmax:
Stores maximum loop measurements on small
display and most recent loop measurement on
larger display
Warnings:
Over voltage
Reverse polarity (with mains plug test lead)
SETUP options:
Auto start on connection
ON
/OFF
Note:
Third lead can be connected. The third lead will enable polarity
detection.
Loop impedance R1+R2 testing [mA]
MEASUREMENT:
Select Zref and make measurement at Ze (or Zdb).
This is automatically saved.
Zref & R1+R2
Select R1+R2 mode and make measurement as
normal (Zs).
Zref automatically deducted from Loop (Zs) value
to give R1+R2 value.
Main
range
knob
(left)
2nd Range
knob
(right)
Terminal
connections
Separate
leads
Mains lead
connections
User
Action
NOT 1710
See note
See note
See note
NONE
Main
range
knob
(left)
2nd Range
knob
(right
Terminal
connections
Separate
leads
Mains lead
connections
User
Action
then
See note
See note
See note
NONE
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