PRECISION SQUARE LEVEL

Code:150200250300100541-2002AA541-2502AA541-3002AA541-1505AA541-2005AA541-2505AA541-3005AA541-1501AA541-2001AA541-2501AA541-3001AA541-2002A541-2502A541-3002A541-1505A541-2005A541-2505A541-3005A541-1501A541-2001A541-2501A541-3001A541-2002B541-2502B541-3002B541-1505B541-2005B541-2505B541-3005B541-1501B541-2001B541-2501B541-3001B541-1502541-2002541-2502541-3002541-1005541-1505541-2005541-2505541-3005541-1001541-1501541-2001541-2501541-3001... ▾ (+99)

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Grade AA, A and B are manufactured and inspected under the JIS B 7510 standard. Grade AA has ±0.2 scale all range accuracy in the main bubble. These three types have less than 3µm accuracy in flatness between base and side. ( 0.02mm/m type ) Squareness between base and both side is 0.015mm/m. (0.02mm/m for

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PRECISION SQUARE LEVEL

Product Overview

The Precision Square Level is engineered for high-accuracy leveling, squareness, and flatness measurements in precision machining, inspection, and metrology applications. Manufactured and inspected under strict quality controls, available grades (Grade AA, Grade A, Grade B) comply with the JIS B 7510 standard, while the Standard Type is also available.

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Key Features & Capabilities

Standards & Compliance: Grade AA, A, and B models are manufactured and inspected in accordance with the JIS B 7510 standard.
High Accuracy: Grade AA features $\pm0.2$ scale all-range accuracy in the main bubble.
Flatness & Squareness:
Flatness between base and side is less than $3\mu\text{m}$ ($0.02\text{ mm/m}$ type).
Squareness between base and both sides is $0.015\text{ mm/m}$ ($0.02\text{ mm/m}$ for Grade A).
Adjustable Bubble Chamber: Grade AA and Grade A feature a manually adjustable bubble chamber to control bubble length.
Sensitivity Reference:
$0.02\text{ mm/m}$ (4 seconds = $0.0011^\circ$)
$0.05\text{ mm/m}$ (10 seconds = $0.00277^\circ$)
$0.1\text{ mm/m}$ (20 seconds = $0.0055^\circ$)

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Technical Specifications & Models

Size, Sensitivity & Weight Dimensions

Size ($W \times H \times D$) [mm]	Sensitivity (mm/m)	Net Weight [kg] (JIS Standard Types)	Net Weight [kg] (Standard Type No.541)
$100 \times 100 \times 38$	—	—	1.0
$100 \times 100 \times 38$	$0.02$ ($4''$)	—	1.0
$150 \times 150 \times 40$ / $42$	$0.02$ ($4''$)	2.1	2.1
$200 \times 200 \times 42$	$0.05$ ($10''$)	3.8	3.8
$250 \times 250 \times 45$ / $50$	$0.1$ ($20''$)	5.8	5.8
$300 \times 300 \times 45$ / $50$	—	7.5	7.5

Complete Part Code Matrix

Grade / Series	Size [mm]	Sensitivity [mm/m]	Code Number
Grade AA	150	0.02	541-1502AA
	200	0.02	541-2002AA
	250	0.02	541-2502AA
	300	0.02	541-3002AA
	150	0.05	541-1505AA
	200	0.05	541-2005AA
	250	0.05	541-2505AA
	300	0.05	541-3005AA
	150	0.1	541-1501AA
	200	0.1	541-2001AA
	250	0.1	541-2501AA
	300	0.1	541-3001AA
Grade A	150	0.02	541-1502A
	200	0.02	541-2002A
	250	0.02	541-2502A
	300	0.02	541-3002A
	150	0.05	541-1505A
	200	0.05	541-2005A
	250	0.05	541-2505A
	300	0.05	541-3005A
	150	0.1	541-1501A
	200	0.1	541-2001A
	250	0.1	541-2501A
	300	0.1	541-3001A
Grade B	150	0.02	541-1502B
	200	0.02	541-2002B
	250	0.02	541-2502B
	300	0.02	541-3002B
	150	0.05	541-1505B
	200	0.05	541-2005B
	250	0.05	541-2505B
	300	0.05	541-3005B
	150	0.1	541-1501B
	200	0.1	541-2001B
	250	0.1	541-2501B
	300	0.1	541-3001B
Standard Type (Not JIS)	100	0.02	541-1002
	150	0.02	541-1502
	200	0.02	541-2002
	250	0.02	541-2502
	300	0.02	541-3002
	100	0.05	541-1005
	150	0.05	541-1505
	200	0.05	541-2005
	250	0.05	541-2505
	300	0.05	541-3005
	100	0.1	541-1001
	150	0.1	541-1501
	200	0.1	541-2001
	250	0.1	541-2501
	300	0.1	541-3001