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2.3 Accessories
The CMi210 comes with the following accessories:
Carrying case
Set of TL45 test leads
Type K thermocouple
5 x 1.5V AA batteries (Installed)
Instructions
Accessories not included:
TL180 insulation resistance test probe (incorporating test switch
for ease of insulation tests)
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3. OPERATION
3.1 General
If the magnitude of a parameter to be measured is uncertain, but
known to be within the maximum safe limits of the electrical tester,
manually set the range to maximum. For example, if measuring AC
voltage and the voltage magnitude is unknown, set the range to
750V, then if required, select the correct range for a satisfactory
reading.
If the insulation clamp meter displays
OL
or
-OL
then the
measurement limits of the range have been exceeded.
3.2 Low Battery Indication
The battery capacity is shown by the symbols on the LCD.
If the symbol is displayed followed by a
bAtt
display, the battery
needs replacing as measurement accuracy can no longer be
guaranteed (see section 4.1 Battery Replacement).
3.3 Description of Press Buttons
INRUSH
Selects inrush current measurement function
HFR
>2sec
Selects high frequency rejection -3db point
Turns backlight on/off
INSULATION
TEST
Press to perform insulation measurement
SEL
ZERO
Selects alternate functions for a rotary switch setting
Zero’s DC clamp current ranges
MAX
MIN
Selects max/min function
LOCK
HOLD
Locks the insulation test to continual measurement
Selects display hold on other measurement functions
RANGE
50V~1KV
Selects manual ranging
Selects test voltage for insulation resistance
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3.4 Description of LCD Symbols
HFR1
High frequency reject > 1 kHz selected
HFR 2
High frequency reject > 10 kHz selected
MAX
Maximum indication is displayed
MIN
Minimum indication is displayed
HOLD
Display hold is activated
APO
Auto power off is activated
INRUSH
Inrush current measurement is selected
50V, 100V, 250V,
500V, 1000V
Selected insulation resistance test voltage
TEST
Indicates insulation test active
LOCK
Insulation test voltage output is locked to on
RANGE
Manual ranging is selected
SMOOTH
Insulation resistance smoothing is selected
Diode testing function is selected
Continuity function is selected
mV, V, μA, mA,
A, μF, mF,
:
, k
:
,
M
:
, G
:
, Hz, kHz,
MHz, %, °C, °F
Units of measurement being displayed
Indicates battery level.
DC
Indicates DC measurement
AC
Indicates AC measurement
Indicates insulation resistance test voltage or external
voltage is present at the insulation terminals
Sub display
Main display
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3.5 Description of Terminals
V
:
Hz
Input terminal for AC and DC voltage, resistance, capacitance
continuity, diode test , frequency and duty cycle
COM
Common terminal
μA mA
Input terminal for AC & DC current measurements to 400 mA
K-TYPE
Input terminals for temperature probes
Insulation
Input terminal for negative insulation test lead
Input terminal for positive insulation test lead/probe
3.6 Auto Power Off
If the clamp meter is inactive for a period of 30 minutes it will
automatically power off.
If any button is pressed after the clamp meter has automatically
powered off, the clamp meter will turn back on.
To disable the auto power off function hold the
MAX
MIN
button at the
same time as turning the rotary switch from
OFF
to any position. The
APO
symbol will no longer be displayed on the LCD.
3.7 Backlight
To switch on the backlight press the
HFR
>2sec
button for > 2 seconds.
Press again for > 2 seconds to turn the backlight off.
3.8 Auto/Manual Ranging
To select manual ranging, press the
RANGE
50V~1KV
button. The
RANGE
symbol will be displayed on the LCD to signify manual ranging is
selected.
To manually select a range when in manual mode press the
RANGE
50V~1KV
button until the required range is selected.
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