Panasonic LH2H preset User manual

Timers/Time Switches/Counters/Hour Meters
’06–’07
Timers/Time Switches/Counters/Hour Meters ’06–’07
ARCT1B274E 200610-3YT
Please contact ..........
Specifications are subject to change without notice. Printed in Japan.
Automation Controls Business Unit
Head Office: 1048, Kadoma, Kadoma-shi, Osaka 571-8686, Japan
Telephone: [phone] Facsimile: [phone]
http://www.nais-e.com/
All Rights Reserved © 2006 COPYRIGHT Matsushita Electric Works, Ltd.
Matsushita Electric Works, Ltd.
These materials are printed on ECF pulp.
These materials are printed with earth-friendly vegetable-based (soybean oil) ink.
Timers/Time Switches/Counters/Hour Meters
ARCT1B274E ’06.10
Matsushita Electric Works, Ltd.
Matsushita Electric Works, Ltd.

LH2H
148
Product types
1. Panel mounting type
1) One-touch installation type
1Standard type
DIN HALF SIZE
HOUR METER LH2H
Hour Meters
No. digits Measurement time range Front reset Input method Part No.
7 digits
0 to 999999.9h/0 to 3999d23.9h switchable
Yes
Non-voltage input type LH2H-FE-DHK
0 to 999h59m59s/0 to 9999h59.9m switchable LH2H-FE-HMK
0 to 999999.9h/0 to 3999d23.9h switchable Voltage input type (4.5 to 30 V DC) LH2H-FE-DHK-DL
0 to 999h59m59s/0 to 9999h59.9m switchable LH2H-FE-HMK-DL
0 to 999999.9h/0 to 3999d23.9h switchable Free voltage input type (24 to 240 V AC/DC) LH2H-FE-DHK-FV
0 to 999h59m59s/0 to 9999h59.9m switchable LH2H-FE-HMK-FV
Panel mounting type
One-touch installation type
Panel mounting type
Installation frame type
PC board mounting type
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.
2. Plenty of 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
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.
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.
RoHS Directive compatibility information
http://www.nais-e.com/
8.7mm
.343inch
7 digits
Product chart
Type
Installation type
Standard type Backlight type
Non-voltage input type Voltage input type
(4.5 to 30 V DC)
Free voltage input type
(24 to 240 V AC/DC)
Voltage input type
(4.5 to 30 V DC)
Panel
mounting
type
One-touch installation type 
Installation frame type 
PC board mounting type ———

LH2H
149
2Backlight type
2) Installation frame type
1Standard type
2Backlight type
2. PC board mounting type
Specifications
No. digits Measurement time range Front reset Input method Part No.
7 digits 0 to 999999.9h/0 to 3999d23.9h switchable YesVoltage input type (4.5 to 30 V DC) LH2H-FE-DHK-DL-B
0 to 999h59m59s/0 to 9999h59.9m switchable LH2H-FE-HMK-DL-B
No. digits Measurement time range Front reset Input method Part No.
7 digits
0 to 999999.9h/0 to 3999d23.9h switchable
Yes
Non-voltage input type LH2H-F-DHK
0 to 999h59m59s/0 to 9999h59.9m switchable LH2H-F-HMK
0 to 999999.9h/0 to 3999d23.9h switchable Voltage input type (4.5 to 30 V DC) LH2H-F-DHK-DL
0 to 999h59m59s/0 to 9999h59.9m switchable LH2H-F-HMK-DL
0 to 999999.9h/0 to 3999d23.9h switchable Free voltage input type (24 to 240 V AC/DC) LH2H-F-DHK-FV
0 to 999h59m59s/0 to 9999h59.9m switchable LH2H-F-HMK-FV
No. digits Measurement time range Front reset Input method Part No.
7 digits 0 to 999999.9h/0 to 3999d23.9h switchable YesVoltage input type (4.5 to 30 V DC) LH2H-F-DHK-DL-B
0 to 999h59m59s/0 to 9999h59.9m switchable LH2H-F-HMK-DL-B
No. digits Measurement time range Front reset Input method Part No.
7 digits 0 to 999999.9h No Non-voltage input type LH2H-C-H-N
0 to 9999h59.9m LH2H-C-HM-N
1. Panel mounting type
Note) Only for installation frame type.
Type
Item
Standard type Backlight type Standard type
Non-voltage input Voltage input Free voltage type
No. digits 7 digits
External power supply Not required (built-in battery)
Measurement time range 0 to 999999.9h/0 to 3999d23.9h (Switchable by switch)
0 to 999h59m59s/0 to 9999h59.9m (Switchable by switch) Separate product type
Start
input
Min. input signal width 200 ms
Input method (signal)
Non-voltage input using
contacts or open collector
connection
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
Input impedance
When shorted:
Max. 10 kΩ
When open:
Max. 750 kΩ
Approx. 4.7 kΩ—
Residual voltage Max. 0.5 V — —
Reset
input
Min. input signal width 100 ms
Input method (signal)
Non-voltage input using
contacts or open collector
connection
High level: 4.5 to 30 V DC
Low level: 0 to 2 V DC
Non-voltage input using
contacts or open collector
connection
Input impedance
When shorted:
Max. 10 kΩ
When open:
Max. 750 kΩ
Appox. 4.7 kΩ
When shorted:
Max. 10 kΩ
When open:
Max. 750 kΩ
Residual voltage Max 0.5 V — Max. 0.5 V
Display method 7-segment LCD 7-segment LCD
With green/red backlight 7-segment LCD
Breakdown voltage (initial) Between charged and uncharged parts: 1,000 V AC for 1 minute.
Between charged and
uncharged parts:
2,000 V AC for 1 minute.
Insulation resistance (initial) Min. 100 MΩ(measured at 500 V DC) Measurement location same as for break down voltage.
Backlight power — 24 V DC (±10%) —
Protective construction (Note) IEC Standard IP66 (only panel front: when using rubber gasket)
Accessories (Note) Rubber gasket, mounting bracket
Battery life 10 years (at 25°C 77°F)

LH2H
150
Applicable standard
Safety standard EN61010-1 Pollution Degree 2/Overvoltage Category III
EMC
(EMI)EN61000-6-4
Radiation interference electric field strength
Noise terminal voltage
(EMS)EN61000-6-2
Static discharge immunity
RF electromagnetic field immunity
EFT/B immunity
Conductivity noise immunity
Power frequency magnetic field immunity
EN55011 Group1 ClassA
EN55011 Group1 ClassA
EN61000-4-2 4 kV contact
8 kV air
EN61000-4-3 10 V/m AM modulation (80 MHz to 1 GHz)
10 V/m pulse modulation (90 MHz)
EN61000-4-4 2 kV (power supply line)
EN61000-4-6 10 V/m AM modulation (0.15 MHz to 80 MHz)
EN61000-4-8 30 A/m (50 Hz)
2. PC board mounting type
3. Common
Type
Item PC board mounting type
Input method Non DC voltage input
No. digits 7 digits
Rated operation voltage 3 V DC
Allowable operation voltage range 2.7 to 3.3 V DC
Current consumption Max. 20 µA (max. 200 µA during reset input)
Measurement time range 0 to 999999.9h 0 to 9999h59.9m
Start
input
Min. input signal width 200 ms
Input method Non-voltage input using contacts or open collector connection
Input impedance When shorted: Max. 10 kΩ
When open: Max. 750 kΩ
Residual voltage Max. 0.5 V
Reset
input
Min. input signal width 10 ms
Input method Non-voltage input using contacts or open collector connection
Input impedance When shorted: Max. 10 kΩ
When open: Max. 750 kΩ
Residual power Max. 0.5 V
Break down voltage (initial) Between charged and uncharged parts: 1,000 V AC for 1 minute.
Insulation resistance (initial) Min. 100 MΩ(measured at 500 V DC) Measurement location same as for break down voltage.
Type
Item Panel mounting/PC board mounting types
Time accuracy ±100 ppm (25°C 77°F)
Vibration resistance Functional 10 to 55 Hz (1 cycle/min.), single amplitude: 0.15 mm (10 min. on 3 axes)
Destructive 10 to 55 Hz (1 cycle/min.), single amplitude: 0.375 mm (1 hr. on 3 axes)
Shock resistance Functional Min. 98 m/s2(4 times on 3 axes)
Destructive Min. 294 m/s2(5 times on 3 axes)
Operation temperature –10 to +55°C +14 to +131°F (without frost or dew)
Storage temperature –25 to +65°C –13 to +149°F (without frost or dew)
Ambient humidity 35 to 85% RH (non-condensing)

LH2H
151
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).
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.
4.Time unit sticker
Unit seals are included in the package.
Affix them in accordance with the time
range.
Notes) 1. ❇Default setting when shipped.
2. Make the switch setting before installing to panel.
0 to 999999.9h/0 to 3999d23.9h 0 to 999h59m59s/0 to 9999h59.9m
Lock switch
(Unit display 1)
Count speed
switch
(Unit display 2)
Time range switch
Lock switch
RESET hms
HOUR METER
LH2H
Time unit sealFront reset button
(Terminal block side)
(LCD side)
OFF❇
ON
(Terminal block side)
(LCD side)
0 to 999999.9h❇
0 to 3999d23.9h
(Terminal block side)
(LCD side)
0 to 9999h59.9m❇
0 to 999h59m59s
Dimensions
1. Panel mounting type
• External dimensions
1) One-touch installation type
mm inch
General tolerance: ±1.0 ±.039
• Panel installation diagram
Note) When installing to a 4.5 mm .177 inch thick panel, remove the rubber spacer
first.
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.
HOUR METER
LH2H
RESET
44.8
1.764
54.4
2.142
48
1.890
5
.197
(44)
(1.732)
10.4
.409
7
.276
22
.866 24 .945
Reset button
M3.5
M.138
Rubber spacer
Panel (1 to 4.5mm
.039 to .177inch
thickness)

LH2H
152
• Terminal layout and wiring diagrams
1) Standard type
2) Backlight type
Non voltage input type Voltage input type Free voltage input type
Voltage input type
2) Installation frame type • Panel mounting diagram
HOUR METER
LH2H
RESET
44.8
1.764
54.4
2.142
5
.197
44
1.732
10.4
.409
7
.276
22
.866
48
1.890
24
.945
Reset button
M3.5
M.138
37
1.457
Mounting screws
(found on mounting bracket) Mounting frame
ATH3803 (included)
Rubber gasket
ATH3804 (included)
Panel
(1 to 4.5mm .039 to .177inch thickness)
• Panel cut-out dimensions
The standard panel cut-out is shown below.
Use the mounting frame (ATH3803) and the rubber packing (ATH3804).
(Only installation frame type.)
• For connected installation (sealed installation)
(Only installation frame type.)
Notes) 1. Suitable installation panel thickness is 1 to 4.5 mm .039 to .177 inch.
2. Waterproofing will be lost when installing repeatedly (sealed installation).
45
1.772
+0.5
0
+.020
0
22.2
.874
+0.5
0
+.020
0
60 min.
2.362 min.
22.2
.874
+0.5
0
+.020
0
A=(48×n-2.5)
A=(1.890×n-.098)
A
+1.0
0+.039
0
W-Rare connected internally.
Start input
2143
Reset input
+V
0V
+V
0V
2143
Start input Reset input
21or 43
Start input Reset input
Backlight
+V0V
<When red><When green>
+V0V
+V
0V
+V
0V
Start input Reset input
12
5
634 12
5
634 12
5
634

LH2H
153
Input method
1. Standard type
Notes) 1. When using contact input, since current flow is small from terminals 1and 3on the panel mounting type and terminals eto tand Sto Fon the PC board
mounting type, please use relays and switches with high contact reliability.
2. When using transistor input, use the following as a guide for which transistors (Tr) to use for inputting. (Collector withstand voltage Q50 V, leakage current < 1 µA)
Notes) 1. 2and 4. (The input and reset circuits are functionally insulated.)
2. When using transistor (Tr) input, use the right as a guide. (Collector withstand voltage Q50 V, leakage current < 1 µA)
3. Be aware that the application of voltage that exceeds the voltage range of the H level to the count input terminal, and the application of voltage to the reset input
terminal, can cause damage to the internal elements.
Non-voltage input type
Panel mounting type PC board mounting type
Contact input Transistor input Contact input Transistor input
NPN transistor NPN transistor
Voltage input type
Free voltage input type
Contact input Transistor input
NPN transistor PNP transistor
2. PC board mounting type
• External dimensions
• Terminal layout and wiring diagrams
General tolerance: ±1.0 ±.039 mm inch
PC board pattern (BOTTOM VIEW)
General tolerance: ±0.1 ±.004
Note: The AXS212811K is recommended as a compatible connection socket.
LH2H
HOUR METER
33.02±0.3
1.300±.012
43.4
1.709 17.3
.681
DIP switch ×8
19
.748 15.24±0.3
.600±.012
3.3±0.3
.130±.012
5.08±0.3
.200±.012
0.5±0.3
.020±.012
0.3±0.1
.012±.004
5.08±0.3
.200±.012
0.6±0.1
.024±.004
Q-E, }-w, e-tand S-Fare connected internally.
An external power supply is required.
Reset inputStart input 15 17 26 28
14 12 3 1
15.24
.600
33.02
1.300
1.9
.075
1.9
.075
5.19
.204
2.54
.100
2.54
.100
8-0.8 dia.
8-.031 dia.
5.08
.200
5.08
.200
5.19
.204
Mounting area
Connection sockets
28 pin DIP terminal
12 3 4 Reset
input
Start
input
(Wand Rare connected internally.)
12 34
0V 0V
(Wand Rare connected internally.)
Reset
input
Start
input Reset
input
Start
input
3V DC
15 17
14 12
26 28
31
Reset
input
Start
input
3V DC
15 17
14 12
26 28
31
Reset
input
Start
input
12 34
12 34 Reset
input
Start
input
+V +V
Reset
input
Start
input 12 34
+V +V
12 34
or or or
Reset input
Start input

LH2H
154
2. Backlight type
Notes) 1. Do not reverse the polarities when connecting the DC voltage for the backlight.
2. 2and 4. (The input and reset circuits are functionally insulated.)
3. When using transistor (Tr) input, use the right as a guide. (Collector withstand voltage Q50 V, leakage current < 1 µA)
4. Be aware that the application of voltage that exceeds the voltage range of the H level to the count input terminal, and the application of voltage to the reset input
terminal, can cause damage to the internal elements.
Explanation of operation
Voltage input type
Backlight connection
Contact input Transistor input
NPN transistor PNP transistor
Reset
input
Start
input
12 34
5
6
12 34 Reset
input
Start
input
+V +V
12 34
5
6
Reset
input
Start
input
+V +V
12 34
Green Red
24V DC
24V DC
5
612 34
5
6
1. Time measuring takes place when the
start input is ON.
2. When the elapsed (measured) time
reaches full scale it returns to “0”, and
then measuring starts again from “0”.
3. When reset input is ON, the display
becomes “0”.You cannot measure during
reset input.
For PC board mounting type the display
disappears while the reset input is ON;
however, the display reads “0” when the
reset input turns OFF.
4. Press the front reset button if you want
to perform a manual reset (for panel
installation type)
Reset input
Full scale
Elapsed time
PC board type
Start input
ON
OFF
OFF
ON
ON
0

LH2H
155
Cautions for use
1. Non-voltage input type
For both panel mounting and PC
board mounting types
1) Never apply voltage to the non-voltage
input type. This will damage the internal
elements.
2) Since the current flow is very small
from the start input and reset input
terminals (1and 3on the panel
mounting type and terminals eto tand
Sto Fon the 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 ICBO
is 1 µA or less and always input with no
voltage.
3) 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 mm2). In particular,
when using shielded wiring, be careful of
the capacitance between wires.
PC board mounting type
1) For external power supply use
manganese dioxide or lithium batteries
(CR type: 3V).
2) Always reset after external power is
applied and confirm that the display
reads “0”.
3) Make the wiring from the battery to the
hour meter unit as short as absolutely
possible. Also, be careful of polarity.
4) 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]
5) 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).
2. Voltage input type
1) Be aware that applying more than 30 V
DC to start input terminals 1and 2, and
reset input terminals 3and 4will cause
damage to the internal elements.
2) For external resetting use H level
(application of 4.5 to 30 V DC) between
reset terminals 3and 4of the rear
terminals. In this case, connect + to
terminal 3and – to terminal 4. This is
the valid polarity; therefore, the hour
meter will not work if reversed.
3) 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 mm2).
3. Free voltage input type
1) Use start input terminals 1and 2for
free voltage input and reset terminals 3
and 4for non-voltage input.
2) 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.
3) Since the current flow is very small
from reset input terminal 3, please use
relays and switches with high contact
reliability.
4) When inputting a reset with an open
collector of a transistor, use a transistor
for small signals in which ICBO is 1 µA or
less and always input with no voltage.
5) To reset externally, short reset input
terminals 3and 4on the rear.
6) 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 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.
4. How to reset multiple panel
mounting type counters all at once
(input is the same for count)
Non-voltage input type
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 0.1 and
higher.)
Voltage input type
Note) Make sure that H (reset ON) level is at least 4.5
V.
5. Backlight luminance
To prevent varying luminance among
backlights when using multiple Backlight
types, please use the same backlight
power supply.
6. Acquisition of CE marking
Please abide by the conditions below
when using in applications that comply
with EN 61010-1/IEC 61010-1
1) Ambient conditions
• Overvoltage category II, pollution level 2
• Indoor use
• Acceptable temperature and humidity
range: –10 to +55°C, 35 to 85%RH (with
no condensation at 20°C)
• Under 2000 m elevation
2) Use the main unit in a location that
matches the following conditions.
• There is minimal dust and no corrosive
gas.
• There is no combustible or explosive
gas.
• There is no mechanical vibration or
impacts.
• There is no exposure to direct sunlight.
• Located away from large-volume
electromagnetic switches and power
lines with large electrical currents.
3) Connect a breaker that conforms to
EN60947-1 or EN60947-3 to the voltage
input section.
4) Applied voltage should be protected
with an overcurrent protection device
(example: T 1A, 250 V AC time lag fuse)
that conforms to the EN/IEC standards.
(Free voltage input type)
7.Terminal connection
Tighten the terminal screws with a torque
of 0.8 N·cm or less.
3or
DTr
4 3 4 3 4
D D
3or
+V +V
R
Tr
4 3 4 3 4 3 4
22
52
Green Red
5
626
24V DC 24V DC

LH2H
156
Product types
Note: Mounting frame and rubber gasket are not included.
PRESET HOUR METER LH2H
Hour Meter
No. digits Measurement time
range Operation mode Output Operating voltage Part No.
7 digits
0 to 999999.9h/
0 to 3999d23.9h
selectable G (Totalizing ON delay)
B (Signal ON delay)
F (Signal flicker)
E (Pulse ON delay)
Transistor (1a) 24 V DC
LH2HP-FEW-DHK-B-DC24V
0 to 999h59m59s/
0 to 9999h59.9m
selectable
LH2HP-FEW-HMK-B-DC24V
Options Mounting frame Use for waterproofing (front panel surface) ATH3803
Rubber gasket ATH3804
Features
1. Preset function equipped in half
size (24 ×48 mm 0.945 ×1.890 inch).
2. Display has backlight for instant
recognition.
3. 8.7 mm 0.343 inch Character Height
(previously 7 mm 0.276 inch)
Easy-to read character height increased
from 7 mm to 8.7 mm 0.276 inch to 0.343
inch.
4. Plenty of Digits
5. Select by switch between two time
ranges in a single meter.
0 to 999999.9h/0 to 3999d23.9h
Selectable
0 to 999h59m59s/0 to 9999h59.9m
Selectable
6. Conforms to IP66 Protective
Construction (Front panel surface)
Weatherproofing supported by using
optional mounting bracket and rubber
gasket
7. Includes reassuring lock mode and
lock switch to prevent erroneous
operation.
8. Screw terminals are constructed to
protect fingers to ensure safety.
9. Compliant with UL, c-UL and CE
marking.
RoHS Directive compatibility information
http://www.nais-e.com/
Green or (Red)
(backlight)
Red or (Green)
(backlight)
Red or (Green)
(backlight)
(Lit or Flashing)
(Lit or Flashing)
Timing upTime counting
Green or Red can
be selected at setup.
Lit or Flashing can
be selected at setup.
8.7mm
.343inch
7 digits

LH2H
157
Specifications
* The factory default preset value is set to 0.1.
Applicable standard
Item Descriptions
Rating
Rated operating voltage 24 V DC
Rated power consumption Max. 1.5 W
Rated control output 100 mA 30 V DC
Time counting direction Addition or Subtraction (selectable by front switch)
Measurement time range 0 to 999999.9h/0 to 3999d23.9h (selectable by slide switch on side)
0 to 999h59m59s/0 to 9999h59.9m (selectable by slide switch on side)
Start input Min. input signal width: Min. 30 ms
Reset input Min. input signal width: Min. 30 ms
Input signal
• Non-voltage input using contacts or open-collector connection
• Input impedance; when shorted: Max. 1 kΩ, when open: Min. 100 kΩ
• Residual voltage: Max. 2 V
Operation mode Totalizing ON delay, Signal ON delay, Signal flicker, Pulse ON delay
(selectable by front switch)
Display method 7-segment LCD
(Switch between red and green for backlight, and between lit and flashing for time up.)
Power failure emory EEP-ROM (Overwriting times: 105operations or more)
Time
accuracy
Operating time fluctuation ±0.01% ±50 ms
in case of power on start
±0.01% ±30 ms
in case of input signal start
Rated operating voltage:
85 to 110%
Ambient temperature:
–10 to +55°C +14 to +131°F
Voltage error
Temperature error
Setting error
Contact arrangement 1 Form A (Open collector)
Electrical life (contact) 107operations (at rated control voltage)
Electrical
Allowable operating voltage range 85 to 110% of rated operating voltage
Break down voltage (Initial value) Between input and output: 1,500 V AC, for 1 min.
Insulation resistance (Initial value) Between input and output: 100 MΩ(at 500 V DC)
Mechanical
Functional vibration resistance 10 to 55 Hz (1 cycle/min), Single amplitude: 0.15 mm (10 min. on 3 axes)
Destructive vibration resistance 10 to 55 Hz (1 cycle/min), Single amplitude: 0.375 mm (1 hr. on 3 axes)
Functional shock resistance Min. 98 m/s2(4 times on 3 axes)
Destructive shock resistance Min. 294 m/s2(5 times on 3 axes)
Operating
conditions
Operation temperature –10 to 55°C +14 to +131°F (without frost or dew)
Storage temperature –25 to +65°C –13 to +149°F (without frost or dew)
Ambient humidity 35 to 85% RH (non-condensing)
Protective construction IP66 (front panel with mounting bracket and rubber gasket)
EMC
(EMI)EN61000-6-4
Radiation interference electric field strength
Noise terminal voltage
(EMS)EN61000-6-2
Static discharge immunity
RF electromagnetic field immunity
EFT/B immunity
Conductivity noise immunity
Power frequency magnetic field immunity
EN55011 Group1 ClassA
EN55011 Group1 ClassA
EN61000-4-2 4 kV contact
8 kV air
EN61000-4-3 10 V/m AM modulation (80 MHz to 1 GHz)
10 V/m pulse modulation (895 MHz to 905 MHz)
EN61000-4-4 2 kV (power supply line)
1 kV (signal line)
EN61000-4-6 10 V/m AM modulation (0.15 MHz to 80 MHz)
EN61000-4-8 30 A/m (50 Hz)









LH2H
158
Part names
1. Front reset key
This key resets the elapsed value. It does
not work when the lock switch is ON.
2. Mode key
Use to set preset values or to switch
between each mode.
3. Setting key
Used to set digits of preset values or set
each mode.
4. Set key
Use to set preset values or to switch
between modes.
5.Time unit seal
Unit seals are included in the package.
Affix them in accordance with the time
range.
6. Lock switch
Disable the operation of the front panel
reset key and the mode key. With the lock
switch on, is displayed for about
two seconds when the reset key or mode
switch is operated.
7.Time range switch
Switch the time range.
❇: Default setting when shipped.
Notes: 1. Make the switch setting before installing to panel.
2. Please turn the power off if you change the setting of the time range switch when the power is on.The
setting will become valid when the power is turned back on.
LH2HP-FEW-DHK-B-DC24V LH2HP-FEW-HMK-B-DC24V
6
Lock
switch
(unit
display 1)
7
Time
range
switch
(unit
display 2)
RESET
MODE SET
HOUR METER
LH2H
12345
76
(Terminal block side)
(LCD side)
OFF❇
ON
(Terminal block side)
(LCD side)
0 to 999999.9h❇
0 to 3999d23.9h
(Terminal block side)
(LCD side)
0 to 9999h59.9m❇
0 to 999h59m59s
Dimensions
• External dimensions
mm inch
General tolerance: ±1.0 ±.039
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.
HOUR METER
LH2H
RESET
MODE SET
44.8
1.764
54.4
2.142
10.4
.409 44 1.732 5 .197 48
1.890
22
.866
7
.276
24
.945
M3.5
M.138
• Panel cut out dimensions
The standard panel cut out is shown below.
Use the mounting frame (ATH3803) and the rubber gasket (ATH3804).
(Only installation frame type)
• For connected installation (sealed installation)
(Only installation frame type)
Notes: 1. Suitable installation panel thickness is 1 to 4.5 mm 0.39 to 0.177 inch.
2. Waterproofing will be lost when installing repeatedly (sealed installation).
45
1.772
+0.5
0
+.020
0
22.2
.874
+0.5
0
+.020
0
60 min.
2.362 min.
22.2
.874
+0.5
0
+.020
0
A=(48×n-2.5)
A=(1.890×n-.098)
A
+1.0
0+.039
0

LH2H
159
How to set
1. Preset value setting mode
This is the mode for setting preset values.
1) Pressing the MODE key takes you to
the preset value setting mode.
* The factory default preset value is set to 1.0.
2) Pressing the setting key moves the
flashing digit left by one. Following the
highest digit it returns to the lowest digit
and each time the digit setting key is
pressed it moves one to the left.
3) Pressing the set key increases the
value by one. (After 9 it returns to 0 and
then changes to 1, 2, 3, etc.)
4) Pressing the front panel reset key sets
the displayed preset value and returns
you to the regular operation mode.
5) In the preset value setting mode if you
do not operate the digit setting key or the
set key for ten seconds or more you will
be returned to regular operation. In this
case the preset value will not change.
2. Lock mode
This mode prohibits everything except
the preset value setting mode.
1) Pressing the set key while holding
down the mode key takes you to the lock
mode.
2) The display reads “Un-Lock” after
entering the lock mode (initial setting).
3) Pressing the setting key changes the
display between “ Lock” and “Un-
lock”.
4) Pressing the front panel reset key sets
the content displayed and returns you to
regular operation mode.
Note: You will not be returned to regular operation
mode if you do not press the front panel reset
key.
5) When the lock mode display reads
“ Lock”, you will not be able to move
to the backlight setting mode, the time
counting direction setting mode, or the
operation setting mode.
3. Backlight setting mode
This is the mode for setting the backlight
during time up.
1) Pressing the SET key two times while
holding down the MODE key takes you to
the backlight setting mode.
2) The display in the backlight setting
mode reads “ LEd”
3) The LED backlight will be red (initial
setting).
4) The backlight changes from flashing
green to flashing red to lit green and to lit
red with each press of the setting key.
5) Pressing the front panel reset key sets
the current backlight color and returns
you to regular operation mode.
Note: You will not be returned to regular operation
mode if you do not press the front panel reset
key.
4.Time counting direction setting
mode
This is the mode for setting addition or
subtraction.
1) Pressing the SET key three times
while holding down the MODE key takes
you to the time counting direction setting
mode.
2) The display after entering the time
counting direction setting mode reads
“ UP” (initial setting).
3) Pressing the setting key changes the
display to “dn” (subtraction) and pressing
it again changes it to “UP” (addition). The
display alternates between “dn” and “UP”.
4) Pressing the front panel reset key sets
the content displayed and returns you to
regular operation mode.
Note: You will not be returned to regular operation
mode if you do not press the front panel reset
key.
Press the MODE key. Set the digit. Set the value.
Sample display in preset value
setting mode
(when preset value is 100.0h)
Un-Lock LockPress the SET key while pressing
the MODE key.
+
Display after entering lock mode
(Example showing “Un-Lock”.)
(Example showing “ Lock”.)
Lit red Flashes green
Lit green Flashes red
Press the SET key while pressing
the MODE key.
+
Display after entering
the backlight setting mode.
Addition SubtractionPress the SET key while pressing
the MODE key.
+
Display after entering time counting
direction setting mode
(Example showing “UP”)
(Example showing “dn”)

LH2H
160
Changing the set time (preset value)
5. Operation mode
This sets the operation mode.
1) Pressing the SET key four times while
holding down the MODE key takes you to
the operation setting mode.
2) The display reads “OP-G” (Totalizing
ON delay) after entering the operation
setting mode.
3) Pressing the setting key causes the
display to change as follows:
OP-B (Signal ON delay)
OP-F (Signal flicker)
OP-E (Pulse ON delay)
OP-G (Totalizing ON delay)
4) Pressing the front panel reset key sets
the display content and returns you to
regular operation mode.
Note: You will not be returned to regular operation
mode if you do not press the front panel reset
key.
OP-G OP-B
OP-E OP-F
Press the SET key while pressing
the MODE key.
+
Un-Lock LockPress the SET key while pressing
the MODE key.
+
Mode changes as follows by pressing the SET key while holding down the MODE key.
When the lock is set, you cannot enter modes other than
backlight setting mode.
Lit red Flashes green
Lit green Flashes red
Press the SET key while pressing
the MODE key.
+
Addition SubtractionPress the SET key while pressing
the MODE key.
+
OP-G OP-B
OP-E OP-F
Lock mode Backlight setting mode
Operation setting mode Time counting direction setting mode
Press the SET key while pressing
the MODE key.
+
2) Lock mode
3) Backlight setting mode
4) Time counting direction setting mode
5) Operation setting mode
Front panel reset key
Regular operation mode
Please be aware that after doing a front
panel reset key and returning to regular
operation mode, the preset values,
elapsed value and output will be as
shown in this table.
Note: “×” sign: No change
Preset
value Elapsed value Output
change
Lock mode ×× ×
Backlight
setting
mode ×× ×
Time
counting
direction
setting
mode
×Addition: “0” Subtraction:
“Preset value”
ON➝OFF
Operation
setting
mode ×Addition: “0”
Subtraction:
“Preset value”
ON➝OFF
1. It is possible to change the set time
even during time delay with the timer.
However, be aware of the following
points.
1) If the set time is changed to less than
the elapsed time (elapsed value) with the
time delay set to the addition direction,
time delay will continue until the elapsed
time reaches full scale, returns to “0
(zero)”, and then reaches the new set
time.
If the set time is changed to a time above
the elapsed time, the time delay will
continue until the elapsed time reaches
the new set time.
2) If the time delay is set to the
subtraction direction, time delay will
continue until “0 (zero)” regardless of the
new set time.
2. If the set time is changed to “0 (zero)”,
the hour meter will operate differently
depending on the operation mode.
In the G (Totalizing ON delay), B (Signal
ON delay), and E (Pulse ON delay)
modes, the output turns ON when the
start input is ON. However, the output will
be OFF while reset is being input.
In the F (Signal flicker) mode, the flicker
operation will not work even if start input
is turned ON.

LH2H
161
Operation mode
Operation mode Explanation Time chart
Totalizing ON delay
• Elapsed value does not clear at power ON.
(Power outage countermeasure function)
• The output remains ON even after the
power is OFF and restarted.
Signal ON delay
• Clears elapsed value at power ON.
• Time delay starts at start ON and output
resets at start OFF.
• Time delay starts at reset OFF and power
ON while start is ON.
Signal Flicker
• Clears elapsed value at power ON.
• Time delay starts at start ON.
• After timer completion, control output
reverses, elapsed value clears, and time
delay starts.
• Ignores start input during time delay.
Pulse ON delay
• Clears elapsed value at power ON.
• Time delay starts at start ON.
• After timer completion, control output is
ON.
• Ignores start input during time delay.
G
Start
Reset
Output
Power supply
T>ta
tat2t1T
T=t1+t2
OFF
ON
OFF
ON
OFF
ON
OFF
ON
B
Start
Reset
Output
Power supply
T T
OFF
ON
OFF
ON
OFF
ON
OFF
ON
F
Start
Reset
Output
Power supply T>ta
ta
TT T
OFF
ON
OFF
ON
OFF
ON
OFF
ON
E
Start
Reset
Output
Power supply
TTT
OFF
ON
OFF
ON
OFF
ON
OFF
ON

LH2H
162
Cautions for use
Compliance with the CE marking
1. Input and output connection
1) Input connection
(1) Contact input
Use highly reliable metal plated contacts.
Since the contact’s bounce time leads
directly to error in the timer operating
time, use contacts with as short a bounce
time as possible.
(2) Non-contact input (Transistor input)
Connect with an open collector. Use
transistors whose characteristics satisfy
the criteria given below.
VCEO = Min. 20 V
IC= Min. 20 mA
ICBO = Max. 6 µA
Also, use transistors with a residual
voltage of less than 2 V when the
transistor is on.
* The short-circuit impedance should be less
than 1 kΩ.
(When the impedance is 0 Ω, the current
coming from the start input terminal is
approximately 5 mA and from the reset
input terminal is approximately 1.5 mA.)
Also, the open-circuit impedance should
be more than 100 kΩ.
(3) Input wiring
When wiring, use shielded wires or
metallic wire tubes, and keep the wire
lengths as short as possible.
2) Output connection
Since the transistor output of hour meter
is insulated from the internal circuitry by a
photo-coupler, it can be used as an NPN
output or PNP (equal value) output.
As NPN output
As PNP output
34125
6
Reset
input
Start
input
3412 Reset
input
Start
input
5
6
34125
6
Load
Load’s power
supply
34125
6
Load
Load’s power
supply
2. Self-diagnosis function
If a malfunction occurs, one of the following displays will appear.
* Includes the possibility that the EEP-ROM’s life has expired.
3. Power failure memory
The EEP-ROM is overwriting with the following timing.
4.Terminal connection
1) When wiring the terminals, refer to the terminal layout and
wiring diagrams and be sure to perform the wiring properly
without errors.
Tighten the terminal screws with a torque of 0.8 N·cm or less.
The screws are M3.5.
An external power supply is required in order to run the main
unit.
Power should be applied between
terminals (1) and (2). Terminal (1) acts
as the positive connection and terminal
(2) as the negative.
2) After turning the hour meter off, make sure that any resulting
induced voltage or residual voltage is not applied to power
supply terminals (1) through (2). (If the power supply wire is
wired parallel to the high voltage wire or power wire, an induced
voltage may be generated at the power supply terminal.)
3) Have the power supply voltage pass through a switch or relay
so that it is applied at one time.
Display Contents Output
condition
Restoration
procedure
Preset values after
restoration
Err-00 Malfunctioning
CPU OFF
Enter front
reset key or
restart hour
meter
Preset value at
start-up before the
CPU malfunction
occurred
Err-01 Malfunctioning
memory* 0
Operation mode Overwrite timing
G (Totalizing ON delay)
mode
Change of preset value or when power is
OFF after start and reset input turns ON
Other modes When power is OFF after changing preset
value
1
Operating voltage
234
5
6
• EMC Directive (89/336/EEC)
The LH2H Preset Hour Meter conforms
to the EMC Directive as a simple hour
meter.
Applicable standards: EN61000-6-4,
EN61000-6-2

LH2H
163
Cautions for use
PRECAUTIONS IN USING THE LH2H SERIES
1. Insulation sheet
Before using a panel mounting type,
please pull and remove the insulation
sheet in the direction of the arrow.
In consideration that the product might be
stored for long periods without being
used, an insulation sheet is inserted
before shipping. Remove the insulation
sheet and press the front reset button.
• LH2H hour meter (one-touch
installation type)
• LH2H hour meter (installation frame
type)
2. Waterproof construction
• LH2H hour meter (installation frame
type)
The operation part of the panel
installation type (installation frame type)
is constructed to prevent water from
entering the unit and a rubber gasket is
provided to prevent water from entering
the gap between the unit and the panel
cutout.
There must be sufficient pressure applied
to the rubber gasket to prevent water
from entering.
Be sure to use the mounting screws
when installing the mounting frame
(ATH3803).
Note: The one-touch installation type is
not waterproof.
• LH2H preset hour meter
1) When using the waterproof type (IP66:
panel front only), install the hour meter to
the front plate with mounting frame
ATH3803 (sold separately) and rubber
gasket ATH3804 (sold separately). Be
sure to tighten using mounting screws.
2) Panel installation order
(1) Remove o-ring.
(2) Place rubber gasket.
(3) Insert hour meter into panel.
(4) Insert mounting frame from the
rear.
(5) Secure with mounting screws (two
locations)
3. Do not use in the following
environments
1) In places where the temperature
changes drastically.
2) In places where humidity is high and
there is the possibility of dew.
(When dew forms the display may vanish
and other display errors may occur.)
4. Conditions of use
1) Do not use on places where there is
flammable or corrosive gas, lots of dust,
presence of oil, or where the unit might
be subject to strong vibrations or shocks.
2) Since the cover is made of
polycarbonate resin, do not use in places
where the unit might come into contact
with or be exposed to environments that
contain organic solvents such as methyl
alcohol, benzene and thinner, or strong
alkali substances such as ammonia and
caustic soda.
5. Cautions regarding battery
replacement
1) Remove wiring before replacing the
battery.You may be electrocuted if you
come into contact to a part where high
voltage is applied.
2) Make sure you are not carrying a static
electric charge when replacing the
battery.
3) Battery replacement procedure
For LH2H hour meter (one-touch
installation type)
(1) Remove the up/down hook of the
case using a tool.
(2) Pull the unit away from the case.
(3) Remove the battery from the side of
the unit. Do not touch the display or
other parts.
(4) Before inserting wipe clean the
surface of the new battery.
(5) Insert the new battery with the “+”
and “–” sides in the proper position.
(6) After replacing the battery, return
the unit to the case. Verify that the
hook of the case has properly
engaged.
(7) Before using, press the reset button
on the front.
Insulation sheet Reset button
Insulation sheet Reset button
Mounting frame
(ATH3803)
When installing the mounting frame
and rubber gasket please remove the
pre-attached o-ring.
Mounting frame
(ATH3803)
Rubber gasket (ATH3804)
Tool
1
2
1
6
7
3

LH2H
164
Options
For LH2H hour meter
(installation frame type)
(1) Remove the battery cover from the
case.
(2) Remove the battery from the side of
the case. The battery will come
loose if you put the battery side face
down and lightly shake the unit.
(3) Before inserting wipe clean the
surface of the new battery.
(4) Insert the new battery with the “+”
and “–” sides in the proper position.
(5) After replacing the battery, return
the battery cover to the case.Verify
that the hook of the battery cover is
properly engaged.
(6) Before using press the reset button
on the front.
1
“−” side
“+” side
2
6
5
1. Accessories (for LH2H hour meter)
Panel cover (black)
Part No.: ATH3801
You can change the design of the front
panel by replacing it with this black panel
cover. The counter comes with an ash
gray panel cover as standard.
Note: No panel cover option (black) is available for the
LH2H preset hour meter.
2. Lithium battery (3 V)
Part No.: ATH3802
Packaged with the LH2H (excluding the
PC board mounting type).
3. Installation parts
Mounting frame
Suitable for installation frame type LH2H
hour meter and LH2H preset hour meter
Part No.: ATH3803
Packaged with the mounting bracket type
LH2H hour meter
Rubber gasket
Suitable for installation frame type LH2H
hour meter and LH2H preset hour meter
Part No.: ATH3804
Packaged with the mounting bracket type
LH2H hour meter
RESET
HOUR METER
LH2H
Panasonic
CR2477
3V
JAPAN
Warning
• Make sure the “+” and “−” polarities are
positioned correctly.
• Do not throw the old battery into a fire,
short circuit it, take it apart, or allow it to
come into contact with heat.
• The battery is not rechargeable.

146
HOUR METERS SELECTOR CHART
Types
Name of product TH14 Hour Meters TH24 Hour Meters TH40 Hour Meters TH50 Hour Meters TH70 Hour Meters
Appearance
TH14 series TH24 series TH40 series TH50 series TH70 series
Counting range 0 to 99999.9 hours
Features For controlling total
integrated hours
Driving method AC motor
Counting direction Addition (UP)
Power Voltage
12 V AC, 24 V AC,
48 V AC, 100 V AC,
110 V AC, 115 to 120 V AC,
200 V AC, 220 V AC, 240 V AC
12 V AC, 24 V AC,
48 V AC, 100 V AC,
110 V AC, 115 to 120 V AC,
200 V AC, 220 V AC, 240 V AC
12 V AC, 24 V AC,
48 V AC, 100 V AC,
110 V AC, 115 to 120 V AC,
200 V AC, 220 V AC, 240 V AC
12 V AC, 24 V AC,
48 V AC, 100 V AC,
110 V AC, 115 to 120 V AC,
200 V AC, 220 V AC, 240 V AC
12 V DC, 24 V DC
Addition (UP) Addition (UP) Addition (UP) Addition (UP)
AC motor AC motor AC motor DC quartz motor
With zero reset function
For controlling measured
integrated hours
Composite function for total
accumulated hours
monitoring and measuring
each zero reset
Zero reset for minute unit
time monitoring
For monitoring accumulated
hours on DC line
0 to 9999.9 hours
Reset side
0 to 9999.9 hours
Without reset side
0 to 99999.9 hours
0 to 9999.9 min 0 to 99999.9 hours
DIN 48 ×48 size Hour Meters
Counting integral/
Counting max. speed
Synchronizing with power
supply frequency
Min. counting unit 0.1 h
Reset input —
Max. power consumption Approx. 1.5 W
Weight 145 g 5.115 oz
Remarks
—
Page P. 168 P. 168 P. 170 P. 172 P. 176
The TH14, 24, 40, 50, 63, and 64 series have numbers at the end of the part number that indicate the voltage required as follows:
1:100 V, 2:200 V, 3:12 V, 4:24 V, 5:48 V, 6:110 V, 7:115 to 120 V, 8:220 V, 9:240 V,
Ex.) The part number of the TH24 series with 220 V is TH248. When “S” is specified at the end of the part number, a silver panel is equipped at the front.
The TH50 series displays
time in minute. ——
The unit with a reset
function is also available.
(Manufacturing after
receiving an order)
150 g 5.291 oz 160 g 5.644 oz 150 g 5.291 oz 170 g 5.997 oz
Approx. 1.5 W Approx. 1.5 W Approx. 1.5 W Approx. 1.5 W
Manual reset Manual reset Manual reset —
0.1 h 0.1 h 0.1 min 0.1 h
Frequency 50/60Hz (common) 50/60Hz (common) 50/60Hz (common) 50/60Hz (common) —
Synchronizing with power
supply frequency
Synchronizing with power
supply frequency
Synchronizing with power
supply frequency
According to quartz
oscillation frequency
Types
Name of product TH63 Hour Meters TH64 Hour Meters LH2H Hour Meters
Appearance
Front section of part
number TH63 series TH64 series ATH3
Counting range 0 to 99999.9 hours
Features For controlling total integrated
hours
Preset function equipped in half
size
Driving method AC motor
Counting direction Addition (UP)
Power Voltage
12 V AC, 24 V AC,
48 V AC, 100 V AC,
110 V AC, 115 to 120 V AC,
200 V AC, 220 V AC, 240 V AC
12 V AC, 24 V AC,
48 V AC, 100 V AC,
110 V AC, 115 to 120 V AC,
200 V AC, 220 V AC, 240 V AC
Flush mounting type: Unnecessary
(Built-in battery)
PC board mounting type: 3 V DC
(Battery is externally installed.)
Addition (UP) Addition (UP)
AC motor Quartz oscillation type
With zero reset function
For controlling measured integrated
hours
Big 7-digit display, 8.7 mm tall display
Bright, 2-color back light (voltage input type)
Plenty of input methods
• Non-voltage input, Voltage input, free voltage input
0 to 9999.9 hours
DIN 24 ×48 size Hour Meters DIN 24 ×48 size Hour Meters
Counting integral/
Counting max. speed
Synchronizing with power supply
frequency
Min. counting unit 0.1 h
Reset input —
Max. power consumption Approx. 1.5 W
Weight 80 g 2.822 oz
Remarks The numbers at the end of the part number indicate voltage.
(See the remarks above.)
Page P. 174 P. 174 P. 148
—
90 g 3.174 oz 50 g 1.764 oz
Approx. 1.5 W —
Manual reset
0.1 h 0.1 h, 0.1 min, 1 s
Frequency 50/60Hz (common) 50/60Hz (common) —
Synchronizing with power supply
frequency ±100 ppm (25°C)
Panel
mounting type
PC board
mounting type
Flush mounting type:
0 to 999999.9 hours/0 to 3999 days 23.9 hours (selectable)
0 to 999 hours 59 min 59 sec/0 to 9999 hours 59.9 min (selectable)
PC board mounting type:
0 to 999999.9 hours/9999 hours 59.9 min (different type)
Push button and external reset input terminal
Flush mounting type: 55 g 1.940 oz
PC board mounting type: 15 g .529 oz
LH2H Preset Hour Meters
24 V DC
Addition or subtraction
Quartz oscillation type
0 to 999999.9 hours/
0 to 3999 days 23.9 hours (selectable)
0 to 999 hours 59 min 59 sec/
0 to 9999 hours 59.9 min (selectable)
P. 156
—
Max. 1.5 W
0.1 h, 0.1 min, 1 s
—
Push button and external reset input terminal
±0.01% ±50 ms in case of power on start
±0.01% ±30 ms in case of input signal start

147
Types
Name of product TH13 Hour Meter TH23 Hour Meter DC Hour Meter
TH Hour Meter: Round type
Appearance
TH13 series TH23 series
Counting range 0 to 99999.9 hours
Features For controlling total integrated hours
Driving method AC motor
Counting direction Addition (UP)
Power
Voltage 100 V AC, 200 V AC, 110 V AC,
115 to 120 V AC, 220 V AC, 240 V AC
Frequency 50 Hz or 60 Hz 50 Hz or 60 Hz
100 V AC, 200 V AC, 110 V AC,
115 to 120 V AC, 220 V AC, 240 V AC
Addition (UP)
AC motor
With zero reset function
For controlling measured integrated hours
0 to 9999.9 hours
DIN 52 ×52 size Hour Meters
Counting integral/
Counting max. speed Synchronizing with power supply frequency
Min. counting unit 0.1 h
Reset input —
Max. power consumption Approx. 1.5 W
Weight 130 g 4.586 oz
Remarks
Both the TH13 and 23 series have numbers at the end of the part number that indicate the voltage
and frequency required.
The third number from the front of the part number indicates the required voltage as follows: 4:100
V, 5:200 V, 6:110 V, 7:115 V (for 50 Hz only) or 115 V to 120 V (for 60 Hz only), 8:220 V, 9:240 V
The fourth number from the front of the part number indicates the required frequency as follows:
5:50 Hz, 6:60 Hz
Ex.) The part number for the TH13 series of 220 V & 50 Hz specification is TH1385.
Page P. 166 P. 166
135 g 4.762 oz
Approx. 1.5 W
Manual reset
0.1 h
Synchronizing with power supply frequency
TH8 series
—
12 V DC, 24 V DC
Addition (UP)
Ceramic oscillation + AC motor
Driven on DC power
0 to 9999.9 hours
P. 178
170 g 5.997 oz
Approx. 1.5 W
—
—
0.1 h
±0.2% (25°C)
HOUR METERS SELECTOR CHART