H7ET-BM Omron, H7ET-BM Datasheet - Page 6

• Manufacturer Part Number: H7ET-BM
• Description: COUNTER 999KHRS W/PB RESET
• Manufacturer: Omron
• Series: H7ETr

Specifications of H7ET-BM

• Operating Mode: Accumulative
• Output Type: None
• Voltage - Supply: None Required (Battery Included)
• Termination Style: Screw Terminal
• Display Type: LCD Non-Backlit
• Lead Free Status / RoHS Status: Contains lead / RoHS compliant by exemption
• Other names: Z871

6
H7ET
Installation
Counters with "-M" suffixes offer the option of manual or external
resetting. To manually reset the counter, press the reset button
located to the left of the display window. To prevent an accidental
reset, lock the reset button by sliding the button downward, without
depressing it. A small "click" sound may be heard, both when
locking and unlocking the reset button. Slide the button up to
unlock.
The terminals used on H7E wire-wrap models have a cross
sectional dimension of 1 x 1 mm. Select one of the three
gauges of wire from the table at right. Also listed in the table
are the appropriate wiring hardware.
On some H7E models, the power input terminal and the
common signal input terminal (terminals 2 and 4) are internally
short-circuited. Pay special attention to polarity when wiring
these terminals.
Keep the input wiring as short as possible.
Whenever possible, avoid routing the input wiring of the AC/DC
voltage input type in parallel with 200 to 240 VAC power lines.
Insert the H7E counter from the front of the mounting panel.
Slide the mounting bracket into place from the rear of the
panel, and tighten the knurled nut by hand. Do not use tools
(such as pliers) to tighten the nut. Excessive tightening may
damage the counter. Wire-wrap terminal models may be back-
mounted, by soldering the terminals to a printed circuit board.
OMRON ELECTRONICS, INC.
One East Commerce Drive
Schaumburg, IL 60173
1-800-55-OMRON
Cat. No. GC CN4A
MANUALLY RESETTING COUNTERS
(-M SUFFIX MODELS)
WIRE-WRAP TERMINALS
CAUTIONS CONCERNING THE H7ET TIME COUNTER
HOW TO MOUNT THE COUNTER
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches, divide by 25.4.
6/98/26M
Specifications subject to change without notice.
If the input wiring must be routed together with the power lines,
keep the length of that portion of wire running parallel with the
power lines to within 20 m (65.6 feet).
When using shielded wire, stray capacitance may occur. The
operation of the counter might be affected when using wires
which have a capacitance which exceeds 500 pF (about 10 m,
32.8 feet, with parallel wires of 2 mm
as possible.
Wire gauge
AWG22
AWG24
AWG26
Bit
2-A
1-A
3-A
hours
H7ET
Sleeve
2-B
1-B
3-B
OMRON CANADA, INC.
885 Milner Avenue
Scarborough, Ontario M1B 5V8
416-286-6465
2
). Keep all wires as short
Printed in the U.S.A.
Method
Normal wire-wrap
Normal wire-wrap
Normal wire-wrap
H7ET