|Non voltage input type||Voltage input type||Free voltage input type|
|Voltage input type|
|1.||Never apply voltage to the non-voltage input type.
This will damage the internalelements.
|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 (15) to (17) and (26) to (26) 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.|
|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
|5.||Hand solder to the lead terminal. Do not dip solder. With the tip of the soldering iron at 300℃ 572℉ perform soldering within 3 seconds (for 30 to 60 W soldering iron).|
|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).|
|1.||Use start input terminals (1) and (2) for free voltage input and reset input 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 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.|
|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.)
|Note)||Make sure that H (reset ON) level is at least 4.5V|
To prevent varying luminance among backlights when using multiple Backlight types, please use the same backlight power supply.
Please abide by the conditions below when using in applications that comply with EN 61010-1/IEC 61010-1
Tighten the terminal screws with a torqueof 0.8 N?cm or less.
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.
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|
|*||When installing the mounting frame and rubber gasket please remove the pre-attached o-ring.|
(When dew forms the display may vanish and other display errors may occur.)
For LH2H hour meter (one-touch installation type)
For LH2H hour meter
(installation frame type)
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Requests to customers (Automation Control Components & Industrial Device) [For specific product]
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