’06–’07
Timers/Time Switches/Counters/Hour Meters
Timers/Time Switches/Counters/Hour Meters
ARCT1B274E ’06.10
Matsushita Electric Works, Ltd.
LH2H
DIN HALF SIZE
HOUR METER
LH2H
Hour Meters
Features
1. 8.7 mm Character Height
(previously 7 mm
.343 inch)
Easy-to-read character height increased
from 7 mm to 8.7 mm
.276 inch to .343
inch.
Panel mounting type
One-touch installation type
8.7mm
.343inch
2. Plenty of Digits
Panel mounting type
Installation frame type
7 digits
3. Select by switch between two time
ranges in a single meter.
0 to 999999.9h/0 to 3999d23.9h switchable
0 to 999h59m59s/0 to 9999h59.9m switchable
PC board mounting type
4. Panel Mounting Type Features 2
Installation Methods
Comes with very easy one-touch
installation type and also installation
frame type that uses the frame on the
timer/counter. Choose a method that
suits the application.
RoHS Directive compatibility information
http://www.nais-e.com/
5. Battery Replacement Easy on
Environment
To replace battery simply remove body
for the one-touch installation type, and
remove battery lid for the installation
frame type.
6. Screw Terminals Designed for
Safety
Built in finger protection.
7. Panel Covers Replacable
(Standard color is ash gray.)
Change the panel design by replacing
with a black panel cover.
8. Conforms to IP66 Protective
Construction (Only installation frame
type.) (Front panel surface)
9. Input Methods
1) Non-voltage input method
2) Voltage input method
3) Free voltage input method
10. Backlight Type Added to Series
and Now 2-color Switchable (green/
red)
Easy viewing even in dark places and
switchable between green and red
(Voltage input type).
11. Compliant with UL, c-UL and CE
marking.
Product chart
Type
Installation type
Panel
mounting
type
One-touch installation type
Installation frame type
—
—
—
Non-voltage input type
Standard type
Voltage input type
(4.5 to 30 V DC)
Free voltage input type
(24 to 240 V AC/DC)
Backlight type
Voltage input type
(4.5 to 30 V DC)
PC board mounting type
Product types
1. Panel mounting type
1) One-touch installation type
1
Standard type
No. digits
Measurement time range
0 to 999999.9h/0 to 3999d23.9h switchable
0 to 999h59m59s/0 to 9999h59.9m switchable
0 to 999999.9h/0 to 3999d23.9h switchable
0 to 999h59m59s/0 to 9999h59.9m switchable
0 to 999999.9h/0 to 3999d23.9h switchable
0 to 999h59m59s/0 to 9999h59.9m switchable
Front reset
Input method
Non-voltage input type
Yes
Voltage input type (4.5 to 30 V DC)
Free voltage input type (24 to 240 V AC/DC)
Part No.
LH2H-FE-DHK
LH2H-FE-HMK
LH2H-FE-DHK-DL
LH2H-FE-HMK-DL
LH2H-FE-DHK-FV
LH2H-FE-HMK-FV
7 digits
148
LH2H
2
Backlight type
No. digits
7 digits
Measurement time range
0 to 999999.9h/0 to 3999d23.9h switchable
0 to 999h59m59s/0 to 9999h59.9m switchable
Front reset
Yes
Input method
Voltage input type (4.5 to 30 V DC)
Part No.
LH2H-FE-DHK-DL-B
LH2H-FE-HMK-DL-B
2) Installation frame type
1
Standard type
No. digits
Measurement time range
0 to 999999.9h/0 to 3999d23.9h switchable
0 to 999h59m59s/0 to 9999h59.9m switchable
0 to 999999.9h/0 to 3999d23.9h switchable
0 to 999h59m59s/0 to 9999h59.9m switchable
0 to 999999.9h/0 to 3999d23.9h switchable
0 to 999h59m59s/0 to 9999h59.9m switchable
Front reset
Input method
Non-voltage input type
Yes
Voltage input type (4.5 to 30 V DC)
Free voltage input type (24 to 240 V AC/DC)
Part No.
LH2H-F-DHK
LH2H-F-HMK
LH2H-F-DHK-DL
LH2H-F-HMK-DL
LH2H-F-DHK-FV
LH2H-F-HMK-FV
7 digits
2
Backlight type
No. digits
7 digits
Measurement time range
0 to 999999.9h/0 to 3999d23.9h switchable
0 to 999h59m59s/0 to 9999h59.9m switchable
Front reset
Yes
Input method
Voltage input type (4.5 to 30 V DC)
Part No.
LH2H-F-DHK-DL-B
LH2H-F-HMK-DL-B
2. PC board mounting type
No. digits
7 digits
Measurement time range
0 to 999999.9h
0 to 9999h59.9m
Front reset
No
Input method
Non-voltage input type
Part No.
LH2H-C-H-N
LH2H-C-HM-N
Specifications
1. Panel mounting type
Type
Item
No. digits
External power supply
Measurement time range
Min. input signal width
Input method (signal)
Start
input
Input impedance
Residual voltage
Min. input signal width
Input method (signal)
Reset
input
Input impedance
Residual voltage
Display method
Breakdown voltage (initial)
Insulation resistance (initial)
Backlight power
Protective construction (Note)
Accessories (Note)
Battery life
Note) Only for installation frame type.
Standard type
Non-voltage input
Backlight type
Voltage input
7 digits
Not required (built-in battery)
0 to 999999.9h/0 to 3999d23.9h (Switchable by switch)
0 to 999h59m59s/0 to 9999h59.9m (Switchable by switch) Separate product type
200 ms
Standard type
Free voltage type
Non-voltage input using
contacts or open collector
connection
When shorted:
Max. 10 kΩ
When open:
Max. 750 kΩ
Max. 0.5 V
Non-voltage input using
contacts or open collector
connection
When shorted:
Max. 10 kΩ
When open:
Max. 750 kΩ
Max 0.5 V
7-segment LCD
High level: 4.5 to 30 V DC
Low level: 0 to 2 V DC
High level:
24 to 240 V AC/DC
Low level:
0 to 2.4 V AC/DC
—
—
Non-voltage input using
contacts or open collector
connection
When shorted:
Max. 10 kΩ
When open:
Max. 750 kΩ
Max. 0.5 V
7-segment LCD
Approx. 4.7 kΩ
—
100 ms
High level: 4.5 to 30 V DC
Low level: 0 to 2 V DC
Appox. 4.7 kΩ
—
7-segment LCD
With green/red backlight
Between charged and
uncharged parts:
2,000 V AC for 1 minute.
Min. 100 MΩ (measured at 500 V DC) Measurement location same as for break down voltage.
Between charged and uncharged parts: 1,000 V AC for 1 minute.
—
24 V DC (±10%)
IEC Standard IP66 (only panel front: when using rubber gasket)
Rubber gasket, mounting bracket
10 years (at 25°C
77°F)
—
149
LH2H
2. PC board mounting type
Type
Item
Input method
No. digits
Rated operation voltage
Allowable operation voltage range
Current consumption
Measurement time range
Min. input signal width
Start
input
Input method
Input impedance
Residual voltage
Min. input signal width
Input method
Input impedance
PC board mounting type
Non DC voltage input
7 digits
3 V DC
2.7 to 3.3 V DC
Max. 20 µA (max. 200 µA during reset input)
0 to 999999.9h
0 to 9999h59.9m
200 ms
Non-voltage input using contacts or open collector connection
When shorted: Max. 10 kΩ
When open: Max. 750 kΩ
Max. 0.5 V
10 ms
Non-voltage input using contacts or open collector connection
When shorted: Max. 10 kΩ
When open: Max. 750 kΩ
Max. 0.5 V
Between charged and uncharged parts: 1,000 V AC for 1 minute.
Min. 100 MΩ (measured at 500 V DC) Measurement location same as for break down voltage.
Reset
input
Residual power
Break down voltage (initial)
Insulation resistance (initial)
3. Common
Type
Item
Time accuracy
Vibration resistance
Shock resistance
Functional
Destructive
Functional
Destructive
Panel mounting/PC board mounting types
±100 ppm (25°C
77°F)
10 to 55 Hz (1 cycle/min.), single amplitude: 0.15 mm (10 min. on 3 axes)
10 to 55 Hz (1 cycle/min.), single amplitude: 0.375 mm (1 hr. on 3 axes)
Min. 98 m/s
2
(4 times on 3 axes)
Min. 294 m/s
2
(5 times on 3 axes)
–10 to +55°C
+14 to +131°F
(without frost or dew)
–25 to +65°C
–13 to +149°F
(without frost or dew)
35 to 85% RH (non-condensing)
Operation temperature
Storage temperature
Ambient humidity
Applicable standard
Safety standard
EN61010-1
(EMI)EN61000-6-4
Radiation interference electric field strength
Noise terminal voltage
(EMS)EN61000-6-2
Static discharge immunity
EMC
RF electromagnetic field immunity
EFT/B immunity
Conductivity noise immunity
Power frequency magnetic field immunity
EN61000-4-3
EN61000-4-4
EN61000-4-6
EN61000-4-8
Pollution Degree 2/Overvoltage Category III
EN55011 Group1 ClassA
EN55011 Group1 ClassA
EN61000-4-2
4 kV contact
8 kV air
10 V/m AM modulation (80 MHz to 1 GHz)
10 V/m pulse modulation (90 MHz)
2 kV (power supply line)
10 V/m AM modulation (0.15 MHz to 80 MHz)
30 A/m (50 Hz)
150
LH2H
Part names
1. Front reset button
Reset the elapsed time. It does not work
when the lock switch is ON. Be aware
that battery life will decrease if this switch
is used frequently.
2. Lock switch (Refer to chart on
right.)
Disable the front reset button.
Note) Turn ON at the LCD side (reset disabled) and
OFF at the terminal block side (reset enabled).
HOUR METER
Time range switch
RESET
h
m
s
LH2H
Front reset button
Time unit seal
Lock switch
3. Time range switch (See chart on
right).
Switch the time range.
Note) Always press the front reset button when
operating the time range switch.
0 to 999999.9h/0 to 3999d23.9h
0 to 999h59m59s/0 to 9999h59.9m
OFF❇
(Terminal block side)
4. Time unit sticker
Unit seals are included in the package.
Affix them in accordance with the time
range.
Lock switch
(Unit display 1)
(LCD side)
ON
(Terminal block side)
0 to 999999.9h❇ (Terminal block side)
0 to 9999h59.9m❇
Count speed
switch
(Unit display 2)
(LCD side)
0 to 3999d23.9h
(LCD side)
0 to 999h59m59s
Notes) 1.
❇Default
setting when shipped.
2. Make the switch setting before installing to panel.
Dimensions
1. Panel mounting type
• External dimensions
1) One-touch installation type
44.8
1.764
M3.5
M.138
mm
inch
General tolerance:
±1.0
±.039
• Panel installation diagram
54.4
2.142
Panel (1 to 4.5mm
.039 to .177inch
thickness)
Rubber spacer
Note) When installing to a 4.5 mm
.177 inch
thick panel, remove the rubber spacer
first.
10.4
.409
(44)
(1.732)
5
.197
48
1.890
HOUR METER
22
.866
24
.945
RESET
LH2H
7
.276
Reset button
When installing the one-touch installation type model, make sure
that the installation spring does not pinch the rubber gasket.
To prevent the installation spring
from pinching the rubber gasket:
1. Set the rubber gasket on both
ends of the installation spring
(left and right).
2. Confirm that the installation
spring is not pinching the rubber
gasket, and then insert and fix the
installation spring in place from the
rear of the timer unit.
151
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