LH2H-F-HMK-DL-B - PANASONIC

LH2H

Product types

1. Panel mounting type

1) One-touch installation type

1 Standard 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

2 Backlight type

2) Installation frame type

1 Standard type

2 Backlight 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

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

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

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❇

(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

1.890

.197

(44)

(1.732)

10.4

.409

.276

.866 24

.945

Reset button

M3.5

M.138

Rubber spacer

Panel (1 to 4.5mm

.039 to .177inch

thickness)

LH2H

• 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

.197

1.732

10.4

.409

.276

.866

1.890

.945

Reset button

M3.5

M.138

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).

1.772

+0.5

+.020

22.2

.874

+0.5

+.020

60 min.

2.362 min.

22.2

.874

+0.5

+.020

A=(48×n-2.5)

A=(1.890×n-.098)

+1.0

0+.039

W-R are connected internally.

Start input

2143

Reset input

2143

Start input Reset input

21or 43

Start input Reset input

Backlight

+V0V

+V0V

Start input Reset input

634 12

634

LH2H

Input method

1. Standard type

Notes) 1. When using contact input, since current ﬂow is small from terminals 1 and 3 on the panel mounting type and terminals e to t and S to F on 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 Q 50 V, leakage current < 1 µA)

Notes) 1. 2 and 4. (The input and reset circuits are functionally insulated.)

2. When using transistor (Tr) input, use the right as a guide. (Collector withstand voltage Q 50 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 Tr ansistor 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

.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-t and S-F are 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

(W and R are connected internally.)

12 34

0V 0V

(W and R are connected internally.)

Reset

input

Start

input Reset

input

Start

input

3V DC

15 17

14 12

26 28

Reset

input

Start

input

3V DC

15 17

14 12

26 28

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

2. Backlight type

Notes) 1. Do not reverse the polarities when connecting the DC voltage for the backlight.

2. 2 and 4. (The input and reset circuits are functionally insulated.)

3. When using transistor (Tr) input, use the right as a guide. (Collector withstand voltage Q 50 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

12 34 Reset

input

Start

input

+V +V

12 34

Reset

input

Start

input

+V +V

12 34

Green Red

24V DC

612 34

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

OFF

LH2H

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 (1 and 3 on the panel

mounting type and terminals e to t and

S to F on 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 1 and 2, and

reset input terminals 3 and 4 will cause

damage to the internal elements.

2) For external resetting use H level

(application of 4.5 to 30 V DC) between

reset terminals 3 and 4 of the rear

terminals. In this case, connect + to

terminal 3 and – 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 1 and 2 for

free voltage input and reset terminals 3

and 4 for 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 3 and 4 on 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

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

4 3 4 3 4 3 4

Green Red

626

24V DC 24V DC