1413
FIBER
SENSORS
LASER
SENSORS
PHOTOELECTRIC
SENSORS
MICRO
PHOTOELECTRIC
SENSORS
AREA
SENSORS
SAFETY LIGHT
CURTAINS /
SAFETY COMPONENTS
PRESSURE /
FLOW
SENSORS
INDUCTIVE
PROXIMITY
SENSORS
PARTICULAR
USE SENSORS
SENSOR
OPTIONS
SIMPLE
WIRE-SAVING
UNITS
WIRE-SAVING
SYSTEMS
MEASUREMENT
SENSORS
STATIC
CONTROL
DEVICES
LASER
MARKERS
PLC
HUMAN MACHINE
INTERFACES
ENERGY
MANAGEMENT
SOLUTIONS
FA COMPONENTS
MACHINE VISION
SYSTEMS
UV CURING
SYSTEMS
Hour Meter
* Refer to our website for details of product.
RoHS compliance
LH2H
Hour Meter
Related Information
Panel mounting type
■
General terms and conditions............. F-3
■
Options ......................................... P.1428
■
Selection guide ........................... P.1411~
Features
One-touch installation type
Installation frame type
PC board mounting type
panasonic.net/id/pidsx/global
Large display in a small body,
achieving high viewability and
user-friendliness
PRODUCT TYPES
Panel mounting type
Installation
type
• 7-segment LCD with 8.7 mm
0.343 in
letter
height (total digits: 7)
• Select by switch between two time ranges
in a single meter.
• Battery replacement easy on environment
• Screw terminals are constructed to
protect fingers to ensure safety.
• Backlight can be switched between green
and red (for backlight type)
• IP66 compliant for resistance against
negative environmental influences
(only when panel surface uses rubber
packing) (for installation frame type)
• Replaceable panel cover
Panel design can be changed from standard (ash gray) to
black (sold separately).
IP66
Time selectable
Measurement time range (switchable)
Input method
0 to 999999.9 h 0 to 999 h 59 m 59 s
0 to 3999 d 23.9 h 0 to 9999 h 59.9 m
Non-voltage input type
Yes
No
Yes
Voltage input type
(4.5 to 30 V DC)
No
Yes
No
Free voltage input type
(24 to 240 V AC/DC)
Non-voltage input type
Yes
No
Yes
No
Yes
Voltage input type
(4.5 to 30 V DC)
No
Yes
No
Free voltage input type
(24 to 240 V AC/DC)
Yes
No
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
No
No
No
Yes
Yes
No
No
No
No
No
No
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
LH2H-FE-DHK
LH2H-FE-HMK
LH2H-FE-DHK-DL
LH2H-FE-HMK-DL
LH2H-FE-DHK-DL-B
LH2H-FE-HMK-DL-B
LH2H-FE-DHK-FV
LH2H-FE-HMK-FV
LH2H-F-DHK
LH2H-F-HMK
LH2H-F-DHK-DL
LH2H-F-HMK-DL
LH2H-F-DHK-DL-B
LH2H-F-HMK-DL-B
LH2H-F-DHK-FV
LH2H-F-HMK-FV
Backlight
Front reset
Model No.
Timers
Time Switches
Counters
Hour Meters
Limit Switches
Temperature
Controllers
Solenoids
Fan Motors
Selection
Guide
LH2H
TH63/TH64
TH13/TH23
TH14/TH24
TH40
TH8
Note: Please ask us about products without front reset button.
PC board mounting type
Input method
Non-voltage input type
Installation frame type
Options
One-touch installation type
Measurement time range
0 to 999999.9 h
No
No
0 to 9999 h 59.9 m
Backlight
No
No
Front reset
No
No
Model No.
LH2H-C-H-N
LH2H-C-HM-N
Note: There is no front panel reset button on the PC board mounting type.
LH2H
Hour Meter
1414
FIBER
SENSORS
CAUTIONS FOR USE
Non-voltage input type
For both panel mounting and PC board mounting types
• Never apply voltage to the non-voltage input type. This
will damage the internal elements.
•
Since the current flow is very small from the start input
and reset input terminals ( and
on panel mounting
type and
to
and
to
on PC board mounting
type) please use relays and switches with high contact
reliability. When inputting with an open collector of a
transistor, use a transistor for small signals in which I
CBO
is 1 μA or less and always input with no voltage.
• When wiring, try to keep all the input lines to the start and
reset inputs as short as possible and avoid running them
together with high voltage and power transmission lines
or in a power conduit. Also, malfunctions might occur if
the floating capacitance of these wires exceeds 500 pF
(10 m
32.808 ft.
for parallel wires of 2
mm
2
). In particular,
when using shielded wiring, be careful of the capacitance
between wires.
PC board mounting type
•
For external power supply use manganese dioxide or
lithium batteries (CR type: 3 V).
•
Always reset after external power is applied and confirm
that the display reads “0”.
• Make the wiring from the battery to the hour meter unit as
short as absolutely possible. Also, be careful of polarity.
• Calculate battery life with the following formula.
t = A/I
t: battery life [h]
I: LH2H current consumption [mA]
A: battery capacity until minimum
operation voltage is reached [mAh]
• Hand solder to the lead terminal. Do not dip solder. With
the tip of the soldering iron at 300 °C
572 °F
perform
soldering within 3 seconds (for 30 to 60 W soldering iron).
Free voltage input type
• Use start input terminals
and
for free voltage input
and reset input terminals
and
for non-voltage input.
•
Be aware that the application of voltage that exceeds the
voltage range of the H level to the start input terminal,
and the application of voltage to the reset input terminal,
can cause damage to the internal elements.
•
Since the current flow is very small from reset input
terminal , please use relays and switches with high
contact reliability.
• When inputting a reset with an open collector of a
transistor, use a transistor for small signals in which I
CBO
is 1 μA or less and always input with no voltage.
•
To reset externally, short reset input terminals
and
on the rear.
• Input uses a high impedance circuit; therefore, erroneous
operation may occur if the influence of induction voltage
is present. If you plan to use wiring for the input signal
that is 10 m
32.808 ft.
or longer (wire capacitance 120
pF/m at normal temperature), we recommend the use of
a CR filter or the connection of a bleeder resistor.
LASER
SENSORS
PHOTO-
ELECTRIC
SENSORS
MICRO
PHOTO-
ELECTRIC
SENSORS
AREA
SENSORS
SAFETY LIGHT
CURTAINS /
SAFETY
COMPONENTS
PRESSURE /
FLOW
SENSORS
INDUCTIVE
PROXIMITY
SENSORS
PARTICULAR
USE
SENSORS
SENSOR
OPTIONS
SIMPLE
WIRE-SAVING
UNITS
WIRE-SAVING
SYSTEMS
MEASURE-
MENT
SENSORS
STATIC
CONTROL
DEVICES
LASER
MARKERS
PLC
HUMAN
MACHINE
INTERFACES
ENERGY
MANAGEMENT
SOLUTIONS
FA
COMPONENTS
MACHINE
VISION
SYSTEMS
UV
CURING
SYSTEMS
How to reset multiple panel mounting type counters all
at once (input is the same for count)
Non-voltage input type
D
3 4
D
3 4
D
3 4
Tr
or
Notes: 1) Use the following as a guide for choosing transistors used for
input (Tr).
Leakage current < 1 μA
2) Use as small a diode (D) as possible in the forward voltage so
that the voltage between terminals 3 and 4 during reset input
meets the standard value (0.5 V). (At IF = 20 μA, forward
voltage: Max. 0.1 V)
Voltage input type
R
Tr
or
+V
3 4
+V
Timers
Time
Switches
Counters
Voltage input type
• Be aware that applying more than 30 V DC to start input
terminals
and , and reset input terminals
and
will cause damage to the internal elements.
•
For external resetting use H level (application of 4.5 to
30 V DC) between reset terminals
and
of the rear
terminals. In this case, connect + to terminal
and – to
terminal . This is the valid polarity; therefore, the hour
meter will not work if reversed.
• When wiring, try to keep all the input lines to the start and
reset inputs as short as possible and avoid running them
together with high voltage and power transmission lines
or in a power conduit. Also, malfunctions might occur if
the floating capacitance of these wires exceeds 500 pF
(10 m
32.808 ft.
for parallel wires of 2
mm
2
).
3 4
3 4
3 4
Note: Make sure that H (reset ON) level is at least 4.5 V.
Hour
Meters
Options
Backlight luminance
To prevent varying luminance among backlights when using
multiple backlight types, please use the same backlight
power supply.
Limit
Switches
Temperature
Controllers
Solenoids
Fan
Motors
24 V DC
2
5
2
Green
5
2
6
Red
2
6
24 V DC
Selection
Guide
LH2H
TH63/
TH64
TH13/
TH23
TH14/
TH24
TH40
TH8
Terminal connection
Tighten the terminal screws with a torque of 0.8 N·m or
less.
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