Multifunction Counter/Tachometer H7CX Series Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Refer to Warranty and Application Considerations (page 64), and Safety Precautions (page 59). DIN 48 × 48 mm Multifunction Counter/Tachometer Series • Highly visible display with backlit negative transmissive LCD. • Intuitive setting enabled using ergonomic up/down digit keys (4-digit models) and DIP switch.
Multifunction Preset Counter H7CX-A DIN 48 × 48 mm Multifunction Preset Counter with a Bright, Easy-to-view, Negative Transmissive LCD • Programmable PV color to visually alert when output status changes (screw terminal block models). • Configurable as 1-stage counter, 2-stage counter, total and preset counter, batch counter, dual counter, or tachometer. (Configurability varies with model.) • Meets a variety of mounting requirements: Screw terminal block models, and pin-style terminal models.
Model Number Structure ■ Model Number Legend H7CX-A@@@@@@ 1 2 3 4 5 6 1. External connection None: Screw terminals 11: 11-pin socket 2. No. of digits None: 6 digits 4: 4 digits 3. Stage setting None: 1-stage setting U: Factory-set to 1-stage setting W: Factory-set to 2-stage setting 4. Output type None: Contact output or contact and transistor in combination S: Transistor output 5.
Specifications ■ Ratings Item H7CX-A4@ H7CX-A@ Classification Preset counter Supported configurations 1-stage counter, 1-stage counter with total counter (selectable) Rated supply voltage (See note 1.) 100 to 240 VAC (50/60 Hz), 12 to 24 VDC H7CX-A114@ H7CX-A11@ 100 to 240 VAC (50/60 Hz) 24 VAC (50/60 Hz)/12 to 24 VDC Operating voltage range 85% to 110% of rated supply voltage (90% to 110% at 12 VDC) Power consumption Approx. 9.2 VA at 264 VAC Approx. 7.2 VA at 26.4 VAC Approx. 3.
■ Ratings (contd.) Item H7CX-A4W@ H7CX-AW@ H7CX-AU@ Classification Preset counter Supported configurations 1-stage counter, 2-stage counter, 1-stage 1-stage counter, 2-stage counter, 1-stage counter with total counter, 1-stage counter with batch counter with total counter, 1-stage counter counter, dual counter (addition/subtraction), tachometer (selectable) with batch counter, dual counter (addition only) (selectable) Rated supply voltage (See note 1.
■ Characteristics item H7CX Insulation resistance 100 MΩ min.
■ Life-test Curve (Reference Values) Resistive Load Inductive Load 1,000 No. of operations (×103) No. of operations (×103) 1,000 700 500 300 30 VDC (cosφ=1) 250 VAC (cosφ=1) 700 500 300 30 VDC (L/R=7 ms) 100 100 70 70 250 VAC cosφ=0.4 50 50 0 1 2 3 0 4 1 2 3 4 Load current (A) Load current (A) Reference: A current of 0.15 A max. can be switched at 125 VDC (cosφ=1) and current of 0.1 A max. can be switched if L/R=7 ms. In both cases, a life of 100,000 operations can be expected.
Connections ■ Block Diagram (Basic insulation) Output circuit (Basic insulation) Power supply circuit (See note.) Display circuit Internal control circuit Input circuit Key switch circuit Note: All models except for H7CX-@D (models with 12 to 24-VDC power supplies) have basic insulation. ■ I/O Functions Using as a Counter Inputs Outputs CP1, CP2 • In general (except for dual counter mode) Reads counting signals Increment, decrement, command, individual, and quadrature inputs accepted.
■ Terminal Arrangement Confirm that the power supply meets specifications before use. Total reset 6 CP1 10 CP2 CP1 Total reset CP2 Reset 0V Reset H7CX-AD/-A4D 1-stage Contact Output H7CX-A/-A4 1-stage Contact Output 7 8 9 10 0V 6 (−) 7 8 9 Sensor, etc. Unused (+) 12 VDC 11 Unused 12 Unused 13 11 5 1 Unused Unused 12 13 External power supply 1 2 3 4 2 3 4 5 OUT OUT (−) (+) Note: Terminals 1 and 6 are connected internally.
CP1 9 Reset 2 8 CP2 CP1 Reset 2 7 7 8 9 10 0V 0V 6 (−) Reset 1 CP2 H7CX-AWS/-AWSD1 2-stage Transistor Output Reset 1 H7CX-AW/-A4W/-AWD1 2-stage Contact Output 6 (−) Sensor, etc. Sensor, etc.
■ Input Connections The inputs of the H7CX are no-voltage (short-circuit or open) inputs or voltage inputs. When using as a tachometer, CP2 input and total reset/reset 2 input are not available.
Nomenclature Indicators A Reset Indicator (Orange) Lit when the reset input (1) or reset key is ON. B Key Protection Indicator (Orange) C Control Output Indicator (Orange) OUT: One stage OUT1, OUT2: Two stages D Total Count Indicator Lit when the total count value is displayed. E Batch Indicator Lit when the batch count value is displayed. F Set Value 1, 2 Stage Indicator G Present Value (Main Display) Character height: 11.
Dimensions Note: All units are in millimeters unless otherwise indicated. ■ Counter (without Flush Mounting Adapter) Screw-terminal Models with External Power Supplies (Flush Mounting) • H7CX-A • H7CX-AS • H7CX-A4 • H7CX-A4S • H7CX-AW • H7CX-AWS • H7CX-A4W • H7CX-AWD1 • H7CX-AWSD1 • H7CX-AU • H7CX-AUD1 • H7CX-AUSD1 48×48 6 100 44.8×44.8 Note: M3.
■ Dimensions with Flush Mounting Adapter Screw-terminal Models with External Power Supplies (Provided with Adapter and Waterproof Packing) Panel Cutouts • H7CX-A • H7CX-AS • H7CX-A4 • H7CX-A4S Panel cutouts are as shown below. (according to DIN43700). • H7CX-AW • H7CX-AWS • H7CX-A4W • H7CX-AWD1 • H7CX-AWSD1 • H7CX-AU • H7CX-AUD1 • H7CX-AUSD1 Y92S-29 (provided) Waterproof Packing Panel 60 min. Y92F-30 (provided) Flush Mounting Adapter 45+0.6 −0 45+0.6 −0 60 min. 15 min. (51) 58 48 7.5 98.
■ Accessories (Order Separately) Note: All units are in millimeters unless otherwise indicated. Track Mounting/Front Connecting Socket P2CF-11 Eleven, 7.8 M3.5 x 7.5 sems 3 4.5 70 max. Terminal Arrangement/ Internal Connections (Top View) 35.4 Two, 4.5-dia. holes Surface Mounting Holes Two, 4.5 dia. or two, M4 4 50 max. 31.2 max. 40±0.2 Note: Track mounting is also possible. P2CF-11-E (Finger-safe Terminal Type) Conforming to VDE0106/P100 Eleven, M3.5 x 7.5 sems 4.5 5 7.8 3 1.2 70 max. 35.
Hard Cover Y92A-48 Note: 1. Depending on the operating environment, the condition of resin products may deteriorate, and may shrink or become harder. Therefore, it is recommended that resin products are replaced regularly. 2. The H7CX’s panel surface is water-resistive (conforming to IP66) and so even if drops of water penetrate the gaps between the keys, there will be no adverse effect on internal circuits.
Operating Procedures ■ Setting Procedure Guide Setting for Counter Operation (1-stage/2-stage Counter, Total and Preset Counter, Batch Counter, Dual Counter) When Using Basic Settings Only The settings can be performed easily with the DIP switch. ➡ For details on the setting methods, refer to page 18. Basic Settings • • • • • • Counting speed (30 Hz, 5 kHz) Input mode (UP, DOWN) Output mode (N, F, C, K-1) One-shot output time (0.5 s, 0.05 s)(See note 2.
■ Operating Procedures (Counter Function) Settings for Basic Operations Settings for basic functions can be performed with just the DIP switch. Be sure to set pin 1 to ON. 1 2 3 4 5 6 7 8 ON OFF Note: All of the pins are factory-set to OFF. Item 1 DIP switch settings enable/disable 2 3 4 OFF ON Disabled Enabled Counting speed 30 Hz 5 kHz Input mode UP (increment) DOWN (decrement) Output mode Refer to the table on the right. Pin 4 Pin 5 OFF 5 6 One-shot output time (See note.
Settings for All Functions Note: At the time of delivery, the H7CX is set to the 1-stage counter (2-stage counter for H7CX-AW@/-A4W@ models) configuration. When using as a 2-stage (or 1-stage) counter, total and preset counter, batch counter, or dual counter, switch to the configuration using the procedure given on page 36. Settings that cannot be performed with the DIP switch are performed with the operation keys. Power ON 3 s min. See note 2. 3 s min.
Explanation of Functions Input Mode (cntm) (Setting possible using DIP switch.) Prescale Value (pscl) Set increment mode (UP), decrement mode (DOWN), or one of the increment/decrement modes (UP/DOWN A, UP/DOWN B, or UP/ DOWN C) as the input mode. Input modes other than UP or DOWN modes cannot be set using the DIP switch and so use the operation keys if other modes are required. (For details on the operation of the input modes, refer to Input Modes and Present Value on page 23.
Key Protect Level (kypt) Set the key protect level. When the key-protect switch is set to ON, it is possible to prevent setting errors by prohibiting the use of certain operation keys by specifying the key protect level (KP-1 to KP-5). The key protect indicator is lit while the key-protect switch is set to ON. Confirm the ON/OFF status of the keyprotect switch after the H7CX is mounted to the panel.
Operation in Run Mode Set values for each digit as required using the 1-stage Counter Present value Set value 2-stage Counter and keys. ( key only for 6-digit models.) Present Value Shows the present count value. Set Value (Set Value 1, Set Value 2) Set the set value. When the present value reaches the set value, signals are output according to the specified output mode.
Input Modes and Present Value UP (Increment) Mode DOWN (Decrement) Mode CP1: Count input; CP2: Prohibit (gate) input CP1: Count input; CP2: Prohibit (gate) input H H CP1 CP1 L A A Prohibit H L A CP2 L A Prohibit H CP2 L n n−1 5 Present value n−2 4 Present value 3 n−3 n−4 2 n−5 1 0 0 0 a must be greater than the minimum signal width. (See note 2.) a must be greater than the minimum signal width. (See note 2.
Input/Output Mode Settings One-shot output from OUT1 Operation for 1-stage models is the same as that for OUT2. When using a 2-stage model as a 1-stage counter, total and preset counter, or dual counter, OUT1 and OUT2 turn ON and OFF simultaneously. Self-holding output Self-holding output One-shot output from OUT2 Input mode UP Output mode setting N DOWN (The one-shot output time can be set in the range 0.01 to 99.99s.
Input mode UP Output mode setting K-1 DOWN UP/DOWN A, B, C Operation after count completion The present value display continues to increase/decrease. OUT1 self-holding output turns OFF after the OUT2 one-shot output time.The OUT1 one-shot output time is independent of OUT2. Reset/ reset 1 999999 Set value 2 Set value 1 0 OUT1 OUT2 P The present value display does not change during the one-shot output time period, but the actual count returns to the reset start status.
(The one-shot output time can be set in the range 0.01 to 99.99s.) Self-holding Instantaneous One-shot output (equals) output output Input mode UP/DOWN A, B, C Output mode setting K-2 Reset/ reset 1 Operation after count completion The display continues to increase/decrease until the overflow or underflow value is reached. One-shot output only. 999999 Set value 2 Set value 1 0 −99999 OUT1 OUT2 D The display continues to increase/decrease until the overflow or underflow value is reached.
Total and Preset Counter Operation The H7CX has a total counter, separate from the 1-stage preset counter, for counting the total accumulated value. Reset/reset 1 Total reset/reset 2 Present value 0 999999 Total count value 0 Note: The full scale (FS) for H7CX 4-digit models is 9999. • The total counter continues to count the total accumulated value when the present value is reset using reset/reset 1 input (reset key). • The total count value is reset when the total reset/reset 2 input is turned ON.
Dual Counter Operation Using the dual counter allows the count from 2 inputs to be added or subtracted and the result displayed. It is possible to specify a set value for which output turns ON when the set value matches the added or subtracted result. OUT1 and OUT2 turn ON and OFF simultaneously.
Reset Function List Function 1-stage/2-stage counter Screen displayed in run mode Present value/ set value (1, 2) Total and preset counter Present value/ set value Batch counter Total count value Present value/ set value Dual counter Batch count Dual count value/batch value/dual count set value count set value Present value and output reset. CP1 present value/CP2 present value Reset/reset 1 Present value Present value and output reset. and output reset. Only the CP1 present value is reset.
■ Operating Procedures (Tachometer Function) Switching from Counter to Tachometer The H7CX is factory-set to the 2-stage counter (1-stage counter for H7CX-AU@ models) configuration. To switch to the tachometer configuration, use the procedure shown on the right. For details, refer to page 36. Power ON Configuration selection mode Run mode MODE + Hold down for 1 1 s min. (See note.) Switch to 2cnt to taco (tachometer operation) using the Note: The MODE key. key must be pressed before the 1 key.
Settings for Advanced Functions Note: When using as a tachometer, switch to the tachometer configuration using the procedure given on page 36. Settings that cannot be performed with the DIP switch are performed with the operation keys. Note: 1. If the mode is switched to the function setting mode during operation, operation will continue. 2. Changes made to settings in function setting mode are enabled for the first time when the mode is changed to run mode.
Explanation of Functions Tachometer Output Mode (totm) (Setting possible using DIP switch.) Set the output method for control output based on the OUT1/OUT2 set value. Upper and lower limit (HI-LO), area (AREA), upper limit (HI-HI), and lower limit (LO-LO) can be set. (For details on the operation of the output modes, refer to Output Mode Settings on page 35.) Counting Speed (cnts) (Setting possible using DIP switch.) Set the maximum counting speed (30 Hz/10 kHz) for CP1 input.
Output Allocation (otst) When using H7CX-AU@ models as 2-stage counter, each output can be flexibly allocated to either stage 1 or 2. Transistor output placed for SV1 and contact output for SV2 or vice verse, as in the following table.
Operation in Run Mode Set values for each digit as required using the Measurement value Measurement value OUT1 set value key. Measurement Value Displays the currently measured value. OUT1/OUT2 Set Value Set OUT1 set value and OUT2 set value. The measurement value is compared to OUT1 set value and OUT2 set value and output is made according to the selected output mode. Measurement value OUT2 set value Self-diagnostic Function The following displays will appear if an error occurs.
Output Mode Settings Output mode setting Upper and lower limit (HI-LO) (Upper-limit) OUT2 set value Measurement value (Lower-limit) OUT1 set value OUT1 OUT2 ON condition for OUT1: measurement value ≤ OUT1 set value ON condition for OUT2: measurement value ≥ OUT2 set value Area (AREA) OUT2 set value Measurement value OUT1 set value OUT1 OUT2 Condition Upper limit (HI-HI) OUT1 set value ≤ OUT2 set value OUT1 set value > OUT2 set value ON OUT1 set value ≤ measurement value ≤ OUT2 set condition val
■ Operation in Configuration Selection Mode Select which H7CX configuration is used (i.e., 1-stage counter, 2-stage counter, total and preset counter, batch counter, dual counter, or tachometer) in configuration selection mode. The H7CX is also equipped with a DIP switch monitor function, a convenient function that enables the settings of the DIP switch pins to be confirmed using the front display.
Additional Information ■ Key Operation Flowchart Counter Operation Counting stopped Power ON + Counting possible 1 3 s min. 1 s min. Configuration selection mode Function setting mode Run mode + 1 1 s min. 1-stage counter 3 s min.
Tachometer Operation Counting stopped Power ON + Counting possible 1 1 s min. 3 s min. Run mode Configuration selection mode + Function setting mode 1 1 s min. 3 s min.
■ Lists of Settings Fill in your set values in the set value column of the following tables and utilize the tables for quick reference. Configuration Selection Mode Parameter name Parameter Setting range Default value Unit Configuration selection func 1cnt/2cnt/tcnt/bcnt/dcnt/taco (See note 1.) 1cnt (See note 2.) --- DIP switch monitor dip on/off off --- Set value --- Note: 1. The setting range varies with the model. 2. The default value for H7CX-AW@/-A4W@ models is 2cnt.
• Dual Counter Parameter name Parameter Setting range -99999 to 999999 (-999 to 9999) Dual count value --Dual count value, dual count Dual count set --set value value Default value Unit 0 --- 0 to 999999 (0 to 9999) (For conditions other 0 than those described in note 2.) --- Set value --- -99999 to 999999 (-999 to 9999) (See note 2.
Settings for Tachometer Operation Run Mode Parameter name Measurement value Parameter Setting range Default value Unit Set value --- 0 to 999999 0 --- --- --- --- Measurement value, OUT1 set value Measurement value --- 0 to 999999 0 OUT1 set value --- 0 to 999999 0 --- Measurement value, OUT2 set value Measurement value --- 0 to 999999 0 --- OUT2 set value --- 0 to 999999 0 --- --- Function Setting Mode Parameter name Parameter Tachometer output mode totm Counting spee
Tachometer H7CX-R DIN 48 × 48 mm Socket-type Tachometer with a Bright, Easy-to-view, Backlit Negative Transmissive LCD • Socket design allows either flush or surface mounting. • Operation in any of the four following modes is possible with the same Unit: Upper and lower limit, upper limit, lower limit, and area. • Equipped with auto-zero time, average processing, and startup time functions. Contents Model Number Structure ..............................................................
Model Number Structure ■ Model Number Legend Note: Some configurations are not available. H7CX-R11@ 1 2 1. Terminal structure 11: 11-pin socket 2.
Specifications ■ Ratings Classification Tachometer Rated supply voltage (See note 1.) 100 to 240 VAC (50/60 Hz) 24 VAC (50/60 Hz)/12 to 24 VDC Operating voltage range 85% to 110% of rated supply voltage (90% to 110% at 12 VDC) Power consumption Approx. 9.4 VA at 264 VAC Approx. 7.1 VA at 26.4 VAC Approx. 4.7 W at 12 VDC Mounting method Flush mounting, surface mounting, or DIN track mounting External connections 11-pin socket Display (See note 2.
■ Characteristics Item H7CX-R Insulation resistance 100 MΩ min.
Connections ■ Block Diagram (Basic insulation) Output circuit Power supply circuit (Basic insulation) (Basic insulation) Display circuit Internal control circuit Input circuit Key switch circuit ■ I/O Functions Inputs Outputs Count Reads counting signals. Hold Holds the measurement value and outputs. The hold indicator is lit during hold. OUT Outputs signals according to the specified output mode when a comparison value is reached. Note: Refer to page 55 for details on the hold function.
■ Input Connections The inputs of the H7CX-R can be used as either no-voltage (short-circuit or open) inputs or voltage inputs. They are set for use as voltage inputs at the time of delivery. No-voltage Inputs (NPN Inputs) Open Collector Voltage Output DC Two-wire Sensor 4 5 7 Operates when the transistor turns ON. 3 4 5 7 Terminal number 6 Operates when the transistor turns ON. 3 4 5 7 Operates when the contact turns ON.
Nomenclature Indicators A Hold Indicator (Orange) Lit when the hold input or hold key is ON. B Key Protection Indicator (Orange) Lit when the key protect switch is ON. C Control Output Indicator (Orange) Lit when output is ON. D Comparison Value 1, 2 Stage Indicator Operation Keys TACHOMETER 1 HLD 2 5 3 6 4 7 9 8 G Mode Key Used to switch mode and setting items. H Hold Key Used to sustain the measurement value and output.
Dimensions Note: All units are in millimeters unless otherwise indicated. ■ Tachometer (without Flush Mounting Adapter) 6 48×48 TACHO MET HLD Panel Cutouts Panel cutouts are as shown below. (according to DIN43700). 14.4 72.5 60 min. ER 45+0.6 −0 44.8×44.8 45+0.6 −0 HLD 60 min. 15 min.
Operating Procedures ■ Settings for Basic Operations Settings for basic functions are performed with the DIP switch. (Factory setting) 1 2 3 4 5 6 7 8 ON OFF Item OFF ON 1 Not used 2 Counting speed 30 Hz 3 Output mode Refer to the table on the right. 10 kHz 4 5 Average processing Not used 8 NPN/PNP input mode NPN PNP Easy Confirmation of Switch Settings Using Indicators The ON/OFF status of the DIP switch pins can be confirmed using the front display.
■ Settings for Advanced Functions Settings that cannot be performed with the DIP switch are performed with the operation keys. Note: 1. If the mode is switched to the function setting mode during operation, operation will continue. 2. Changes made to settings in function setting mode are enabled for the first time when the mode is changed to run mode. Also, when settings are changed, the counter is reset (measured values initialized and output turned OFF) on returning to run mode.
■ Explanation of Functions Basic Functions 2. Displaying Speed (setting is performed with DIP switch) Display unit Counting Speed Set the maximum counting speed (30 Hz/10 kHz) for input. If contacts are used for input signals, set the counting speed to 30 Hz. Processing to eliminate chattering is performed for this setting.
Key Protect Level (kypt) Set the key protect level. When the key-protect switch is set to ON, it is possible to prevent setting errors by prohibiting the use of certain operation keys by specifying the key protect level (KP-1 to KP-5). The key protect level is set in the function setting mode. The key protect indicator is lit while the key-protect switch is set to ON. Confirm the ON/OFF status of the key-protect switch after the H7CX is mounted to the panel.
■ Operation in Run Mode Set the values for each digit as required using the key. Output Mode: HI or LO Measurement value Measurement value Comparison value Measurement Value Displays the currently measured value. Comparison Value Set comparison value. The measurement value is compared to comparison value and output is made according to the selected output mode. Output Mode: HI-LO or AREA Measurement value Measurement Value Displays the currently measured value.
■ Output Mode Settings Output mode setting Upper and lower limit (HI-LO) Comparison value 2 (Upper-limit) Measurement value Comparison value 1 (Lower-limit) OUT ON condition: measurement value ≤ comparison value 1 or measurement value ≥ comparison value 2 Note: When comparison value 1 ≥ comparison value 2, the output is always ON regardless of the comparison value.
■ Self-diagnostic Function The following displays will appear if an error occurs. Main display Sub-display Error Output status Correction method Set value after reset ffffff (See note 3.) No change Measurement value overflow No change (See note 2.) Measurement value ≤ 999999 No change e1 Not lit CPU Either press the hold key or reset the power supply. No change e2 Not lit Memory error (RAM) OFF Reset the power supply. No change e2 sum Memory error (EEP) (See note 1.
Additional Information ■ Key Operation Flowchart Measurement stopped Power ON + Measurement possible 1 1 s min. 3 s min. Run mode DIP switch monitor mode + Function setting mode 1 1 s min. Output Mode: HI or LO 3 s min.
■ Lists of Settings Run Mode Parameter name Measurement value Parameter --- Setting range 0 to 999999 Default value 0 Unit ----- Measurement value, Comparison value Measurement value --- 0 to 999999 0 --- Comparison value 0 to 999999 0 --- Measurement value, Comparison value 1 Measurement value --- 0 to 999999 0 --- Comparison value 1 --- 0 to 999999 0 --- Measurement value, Comparison value 2 Measurement value --- 0 to 999999 0 --- Comparison value 2 --- 0 to 999999 0 --- --
Safety Precautions (Common) Note: The following precautions are common for all H7CX models. CAUTION Loose screws may occasionally result in fire or malfunction. Tighten the terminal screws securely. The recommended tightening torque is 0.5 N·m. • Leaving the H7CX with outputs ON at a high temperature for a long time may hasten the degradation of internal parts (such as electrolytic capacitors).
■ Precautions for Correct Use External Power Supply The capacity of the external power supply is 100 mA at 12 V. When using a 24 VAC/12 to 24 VDC power supply, reduce the load with the power supply voltage, as shown in the following diagram (DC power supplies only). Load current (mA) (DC voltage supply only) 100 20 15 10.
Safety Precautions (H7CX-A) ■ Precautions for Safe Use Using the Prescaling Function Observe the following points when setting a prescale value. Changing the Set Values When changing the set value during operation, because the H7CX uses a constant read-in system, output will turn ON if the set value is equal to the present value. ■ Precautions for Correct Use Power Supplies When turning the power ON and OFF, input signal reception is possible, unstable, or impossible as shown in the diagram below.
Safety Precautions (H7CX-R) ■ Precautions for Safe Use Changing the Measurement Value The H7CX-R uses a constant read-in system, so the output status is affected when the comparison values are changed during operation such that the present measurement value falls within the range of the upper- and lower-limit comparison values. Turning ON the Power using the Factory Settings When the power is turned ON using the factory settings, the output will turn ON after 999.
Safety Precautions H7CX Series 63
Warranty and Application Considerations Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS.