19 20
Note:
Position the inductive pick-up as far away from the distributor and
the exhaust manifold as possible
.
Position the inductive pick-up within six inches of the spark plug or
move it to another plug wire if no reading or an erratic reading is
received.
RPM 4
:
For RPM of 4-stroke engines which have 1 ignition on every
4 engine strokes
RPM 2 :
For RPM of DIS (Distributorless Ignition System) & 2-stroke
engines which have 1 ignition on every 2 engine strokes
PLEASE NOTE
：
THE RPM PICK-UP HAS AN ADJUSTABLE SENSITIVITY SWITCH THAT CAN
ALSO BE USED TO CORRECT AN UNSTABLE READING.
。
As you are measuring, keep the meter away from the engine to ensure
a stable reading.
General Specifications
The instrument complies with:
IEC 1010-1
EN61010-1.
Insulation:
Class2, Double insulation.
Overvoltage category:
CATIII1000V/CATIV600V.
Display:
4000 counts LCD display with function indication.
Polarity:
Automatic, (-) negative polarity indication.
Overrange:
“OL” mark indication.
Low battery indication:
The “ ” is displayed when the battery
voltage drops below the operating level.
Measurement rate:
2 times per second, nominal.
Auto power off:
Meter automatically shuts down after approx. 30
minutes of inactivity.
Operating environment:
0ºC to 50
⁰
C (32
⁰
F to 122
⁰
F)
at < 70 % relative humidity.
Storage temperature:
-20
⁰
C to 60
⁰
C (-4
⁰
F to 140
⁰
F) at < 80 % relative
humidity.
For inside use, max height:
2000m
Pollution degree:
2
Power:
One 9V battery , NEDA 1604, IEC 6F22.
Dimensions:
167 (H) x 79 (W) x50 (D) mm
Weight: Approx.:
300g.
Accuracy and Resolution Specifications
*Accuracy is given as
±
([X% of reading]
±
[number of least significant
digits]) at 18
⁰
C to 28
⁰
C (65
⁰
F to 83
⁰
F), with relative humidity up to 70%.
RPM
(Tach)
Range
Resolution
Accuracy
RPM 4
600~4000
RPM
1 RPM
+2 % of rdg + 4 dgts
1000~12000
RPM
(X10 RPM)
10 RPM
RPM 2/DIS
300~4000
RPM
1 RPM
1000~6000
RPM
(X10 RPM)
10 RPM
Effect Reading: >600 RPM
DEWLL ANGLE
Cylinder
Range
Resolution
Accuracy
4CYL
0~90.0
°
0.1
°
+2.0% of rdg + 4 dgts
5CYL
0~72.0
°
6CYL
0~60.0
°
8CYL
0~45.0
°
DC Voltage
Range
Resolution
Accuracy
400.0mV
0.1mV
+0.5% of rdg + 3 dgts
4.000V
1mV
+1.5% of rdg + 2 dgts
40.00V
10mV
400.0V
100mV
600V
1V
+1.8% of rdg + 2 dgts
Input Impedance: 10MΩ
