Urrea UD88 User's Manual And Warranty Information page 57

34. MAX (Maximum Value in the Recording
mode).
The displayed value is the maximum reading taken
since the Recording mode was entered.
35. MIN (Minimum Value in the Recording mode).
The displayed value is the minimum reading taken
since the Recording mode was entered.
36. AVG (Average Value in the Recording mode).
The displayed value is the true average of all readings
taken since the Recording mode was entered.
37. REL (Zero mode).
Displayed when the Relative mode is selected.
38 HOLD.
Displayed when the HOLD mode is selected.
39 .
Displayed when either 2 or 4 strokes are selected in
the RPM IP mode . Press the STR (RANGE) button to
toggle between 2- stroke or 4-stroke engines.
40. .
Displayed when a certain number of cylinders is
selected in the RPM IG or DWELL mode. Press the CYL
(RANGE) button to toggle between 1, 2, 3, 4, 5, 6,
8, 10, 12 cylinder engines. When the Meter is in the
Temperature mode, °C (Centigrade) or °F (Fahrenheit)
is displayed from , press the °C / °F (DC/AC) button to
toggle between °C and °F.
41. DWL°
Displayed when the DWELL mode is selected. 42 %
Displayed when the DWELL mode is selected. When
the Meter is in the Temperature mode, ° (Degree) is
displayed from %.
43. The following symbols indicate the unit of
the displayed valued.
DWL° Display the number of degrees of distributor
rotation where the points remain closed, measured
for 1 to 12 cylinders.
% Percent, used for DUTY-CYCLE measurement.
C° / °F Centigrade or Fahrenheit temperature
measurement.
Ω Resistance.
KΩ Kilohm (1 x 103 Ohms).
MΩ Megohm (1x 106 Ohms).
Hz Hertz (1 cycle/sec).
KHz KiloHertz (1 x 10 ¯ ³ cycles/sec).
V Volts.
mV Millivolts (1 x 10-3 Volts).
A Amperes (Amps).
mA Milliamperes (1 x 10-3 Volts).
μA Microamperes (1 x 10-6 Amps).
μF Microfarads (1 x10-6 Farads).
44. mS (Milliseconds, 1x10 ¯ ³ seconds)
Displayed when the mS-PULSE-WIDTH mode is
selected.
45 RPM IP.
Displayed when the RPM IP mode is selected. In
this mode, Revolutions Per Minute on 2 or 4-stroke
engines are measured using the Inductive Pickup on
a spark plug wire.
46. RPM IG.
Displayed when the RPM IG mode is selected. In this
mode, Revolutions Per Minute on 1 to 12 cylinder
engines are measured using the test leads on the
primary side of the ignition coil.
47. ANALOG DISPLAY SCALE.
Displayed with 41 position analog pointers.
BOTTOM COVER
48. RS-232 TERMINAL.
E N G L I S H
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