Digital Gap Checker, 3-Color Display, With Control Unit, ISA3 Series

Caution
- Product images may be representative. Refer to the manufacturer's catalog for details.
Product Description
SMC Gap Checker.
[Features]
· At-a-glance checking of whether the workpiece is placed correctly or not.
· Allows you to intuitively know how much of a gap there is between the workpiece and the detecting surface.
· Easy setting: Allows you to change the settings and see the values change on the display.
· Energy-saving type: Air consumption reduced by 60%.
· Improved drainage resistance: by 10 times or more.
[Applications]
· Checking the reference plane for the press fitting of shafts.
· Confirmation of close contact with the reference plane for machining.
· Confirmation of close contact with the workpiece for machining.
3-Color Display Digital Gap Checker, With Control Unit, ISA3 Series Specifications
| Model | ISA3-F | ISA3-G | ISA3-H | |||
|---|---|---|---|---|---|---|
| Applicable fluid | Dry air (filtered through a 5‑μm filter) | |||||
| OUT 1 OUT2*5 | Rated distance range | 0.01 to 0.03 mm | 0.02 to 0.15 mm | 0.05 to 0.30 mm | ||
| Displayable/settable range (distance reference)*1 | 0 to 60*2 | 10 to 300*2 | 30 to 500*2 | |||
| Minimum display resolution (distance reference)*1 | 1 | |||||
| Rated pressure range | 100 to 200 kPa | |||||
| Displayable range (pressure value)*3 | -20 to 220 kPa | |||||
| Repeatability | 0.005 mm or less | 0.010 mm or less | 0.020 mm or less | |||
| Temperature characteristics (reference: 25°C) | 0.010 mm or less | 0.015 mm or less | 0.030 mm or less | |||
| Hysteresis | 0 to variable (default: 3) | 0 to variable (at factory setting: 20) | ||||
| OUT2 *6 | Rated pressure range | 0 to 200 kPa | ||||
| Set pressure range | -20 to 220 kPa | |||||
| Minimum display/setting unit | 1 kPa | |||||
| Repeatability | ±0.5% F.S. ±1 digit | |||||
| Temperature characteristics (reference: 25°C) | ±2% F.S. | |||||
| Hysteresis | Hysteresis mode | 0 to variable*7 | ||||
| Window comparator mode | ||||||
| Withstand pressure | 600 kPa | |||||
| Detection nozzle | ø1.5 (diameter 1.5 mm)*4 | |||||
| Consumption flow rate | 5 L/min or less | 12 L/min or less | 22 L/min or less | |||
| Power supply voltage | 24 V DC ±10%, Ripple (p-p10% or less) (with power supply polarity protection) | |||||
| Current consumption | 25 mA or less | |||||
| Switch output | - | 1 output (NPN or PNP), 2 outputs (NPN or PNP) | ||||
| Maximum load current | 10 mA | |||||
| Maximum applied voltage | 26.4 V | |||||
| Residual voltage | 1 V or less (at 10 mA) | |||||
| Short-circuit protection | Yes | |||||
| Display | 2-screen display LCD Main screen: 3-digit, 7-segment, 2-color display (orange/green) Sub screen: 6-digit, 7-segment, 1-color display (white) | |||||
| Environment | Enclosure | IP67 equivalent | ||||
| Operating temperature range | Operating: 0 to 50°C, Stored: -20 to 70°C (no condensation or freezing) | |||||
| Operating humidity range | Operating/stored: 35 to 85% RH (no condensation) | |||||
| Withstand Voltage | 1,000 V AC or more (at 50/60 Hz) for 1 minute, between terminals and housing | |||||
| Insulation Resistance | 2 MΩ or more (500 V DC measured via megohmmeter) between terminals and housing | |||||
| Piping specifications | For C type | Supply port | Rc 1/8 | |||
| Detection port | ø4 (diameter 4 mm) single-action fitting | ø6 (diameter 6 mm) single-action fitting | ||||
| For F type | Supply port | G1/8 (ISO1179-1 compliant) | ||||
| Detection port | G1/8 (ISO1179-1 compliant) | |||||
| Cable | Lead wire with connector | M12 lead wire with 4-pin connector, 4 cores, ø4 (diameter 4 mm), 5 m Conductor O.D.: 0.72 mm, Insulator O.D.: 1.14 mm | ||||
| Centralized lead wire | M12 lead wire with 4 pin connector, 4 cores, ø4 (diameter 4 mm), Insulator O.D.: 1.14 mm Centralized lead wire part: 2 to 3 stations: 5 cores, ø4 (diameter 4 mm), 5 m, 4 to 6 stations: 8 cores, ø6 (diameter 6 mm), 5 m Conductor O.D.: 0.50 mm, Insulator O.D.: 1.00 mm (2 to 6 stations common) | |||||
| Weight | 113 g (cable not included, single-action fitting) | |||||
| Standards | CE | |||||
- *1 Refer to "Relationship between Displayed Value and Distance" in the manufacturer's catalog.
- *2 For the F type, the range is limited to 57 if the hysteresis is set to 3. For the G type, the range is limited to 280 if the hysteresis is set to 20. For the H type, the range is limited to 480 if the hysteresis is set to 20.
- *3 The pressure value will be indicated on the sub screen.
- *4 Refer to the nozzle shape figures in the manufacturer's catalog for details about the detection nozzle.
- *5 When OUT2 is set to detect the distance.
- *6 When OUT2 is set to detect the pressure.
- *7 If the applied pressure fluctuates around the set value, the hysteresis must be set to a value more than the fluctuating width, otherwise chattering will occur.
Dimensions
(Unit: mm)

Dimensions: ISA3-□□ (bracket mounted)
- *1ISO1179-1 compliant
(Unit: mm)
| Stations | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| L1 | 38 | 76 | 114 | 152 | 190 | 228 |
| Piping specifications | C (ø4 [diameter 4 mm] single-action fitting) | C (ø6 [diameter 6 mm] single-action fitting) | F (G thread) |
|---|---|---|---|
| H | 13 | 13.6 | 19 |

ISA3-□□ (bracket mounted) pin numbers
- 1: DC (+)
- 2: N.C.
- 3: DC (-)
- 4: OUT1
(Unit: mm)

Dimensions: ISA3-□□ (DIN rail mounted)
- *1ISO1179-1 compliant
(Unit: mm)
| Stations | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| L1 | 38 | 76 | 114 | 152 | 190 | 228 |
| L2 | 62.5 | 125 | 162.5 | 200 | 237.5 | 275 |
| L3 | 73 | 135.5 | 173 | 210.5 | 248 | 285.5 |
| Piping specifications | C (ø4 [diameter 4 mm] single-action fitting) | C (ø6 [diameter 6 mm] single-action fitting) | F (G thread) |
|---|---|---|---|
| H | 13 | 13.6 | 19 |

ISA3-□□ (DIN rail mounted) pin numbers
- 1: DC (+)
- 2: N.C.
- 3: DC (-)
- 4: OUT1
Product Details
Supply Pressure Dependence Characteristics
The distance for the product to turn ON varies depending on the supply pressure.
The charts below show the variation of the distance for the product to turn ON, for 3 types of gap, by changing the supply pressure (±50 kPa) when the product is set to turn ON at a supply pressure of 150 kPa.

Detection nozzle: ø1.5 (diameter 1.5 mm), Piping: F type ø4 (diameter 4 mm) × ø2.5 (diameter 2.5 mm) tube / G, H type ø6 (diameter 6 mm) × ø4 (diameter 4 mm) tube, Reference pressure: 150 kPa
- *Use within the rated pressure range (100 kPa to 200 kPa).
It is impossible to measure the gap when the operating pressure is less than or equal to 80 kPa or more than 220 kPa, and the output will be OFF. (Refer to "Relationship between Supply Pressure and Display" in the manufacturer's catalog for details.)

Supply pressure dependence characteristics of ISA3-F

Supply pressure dependence characteristics of ISA3-G

Supply pressure dependence characteristics of ISA3-H
*Refer to the manufacturer's catalog for other models, specifications, etc.