QM120C

QM120C Datasheet

Part	Datasheet
QM120C	QM120C (pdf)

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QM 120 ET Nema 4 Single Hole Mounting Elapsed Hour Meter QM 120ET is an easy to mount LCD digital elapsed hour meter. The module features and hour ranges, resulting in 1/10 hour and 1 hour resolution respectively. A leading zero blanking input is provided, allowing the user to switch off unwanted leading zeros. The module incorporates an output which pulses high after every hour counted. This is particularly useful in applications where maintenance or inspection are required at regular time intervals. The timer features Trip and Total ranges. The Trip range can be reset to zero. To mount the unit into a panel, the user need only drill a single 5.5mm / 7/32" hole. The module is fitted to the panel by locating its screw threaded stud through the hole, fitting the washer and tightening the nut provided. The module's 8 connecting wires pass through the hollow stud into the target application, where they can be easily connected as required. A rubber seal is included, providing splashproof protection for the unit when fitted to the meter during installation. Single Hole Mounting and Hour Ranges 9mm / LCD Digit Height TRIP TOTAL Hrs Reset and Trip/Total Inputs Leading Zero Blanking Input ---------- Pulse Output Every Hour Shown Actual Size Splashproof Easy Mounting Elapsed Hour Meter Stock Number QM 120 ET Seal Elapsed Hour Meter Panel 8 Wires - 30cm Specification Resolution Range Range Accuracy* Operating temperature range Supply voltage V+ Supply current Input Low Voltage VIL Input High Voltage VIH * Min. 0 5 0 2 Typ. 1 ±2 Max. ±6 50 27 Unit Hour Sec./24Hrs. °C V d.c. Nut Washer SAFETY * Based upon constant running. There is potential for ±2 seconds error each time the module is powered down and then up again. Over time, the accumulated error approximates to zero. Applies to the inputs Range, V-Sense, LZB, Reset and Trip/Total * Applies to V-Sense input only. To comply with the Low Voltage Directive LVD 93/68/EEC , input voltages to the module’s wires must not exceed 60Vd.c. The user must ensure that the incorporation of the meter into equipment conforms to the relevant sections of BS EN 61010 Safety Requirements for Electrical Equipment for Measuring, Control and Laboratory Use . DIMENSIONS All dimensions in mm inches LCD shown in power-on self-test mode.

PDF Datasheet Preview

QM 120 ET

Nema 4 Single Hole Mounting Elapsed Hour Meter

QM 120ET is an easy to mount LCD digital elapsed hour meter. The module features and hour ranges, resulting in 1/10 hour and 1 hour resolution respectively. A leading zero blanking input is provided, allowing the user to switch off unwanted leading zeros. The module incorporates an output which pulses high after every hour counted. This is particularly useful in applications where maintenance or inspection are required at regular time intervals. The timer features Trip and Total ranges. The Trip range can be reset to zero. To mount the unit into a panel, the user need only drill a single 5.5mm / 7/32" hole. The module is fitted to the panel by locating its screw threaded stud through the hole, fitting the washer and tightening the nut provided. The module's 8 connecting wires pass through the hollow stud into the target application, where they can be easily connected as required. A rubber seal is included, providing splashproof protection for the unit when fitted to the meter during installation.

Single Hole Mounting
and Hour Ranges 9mm / LCD Digit Height

TRIP TOTAL Hrs

Reset and Trip/Total Inputs Leading Zero Blanking Input
----------

Pulse Output Every Hour

Shown Actual Size

Splashproof

Easy Mounting Elapsed Hour Meter

Stock Number QM 120 ET

Seal

Elapsed Hour Meter

Panel
8 Wires - 30cm

Specification

Resolution

Range

Range

Accuracy*

Operating temperature range

Supply voltage V+

Supply current

Input Low Voltage VIL **

Input High Voltage VIH ***

Min.
0 5 0 2

Typ. 1 ±2

Max.
±6 50 27

Unit Hour Sec./24Hrs.
°C V d.c.

Nut Washer

SAFETY
* Based upon constant running. There is potential for ±2 seconds error each time the module is powered down and then up again. Over time, the accumulated error approximates to zero.
** Applies to the inputs Range, V-Sense, LZB, Reset and Trip/Total *** Applies to V-Sense input only.

To comply with the Low Voltage Directive LVD 93/68/EEC , input voltages to the module’s wires must not exceed 60Vd.c. The user must ensure that the incorporation of the meter into equipment conforms to the relevant sections of BS EN 61010 Safety Requirements for Electrical Equipment for Measuring, Control and Laboratory Use .

DIMENSIONS All dimensions in mm inches

LCD shown in power-on self-test mode.

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Datasheet ID: QM120C 647091