Choosing the Right Instrument

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Choosing the Right Instrument Will it be necessary to measure vertical angles? For horizontal work only a level instrument will be adequate. If vertical plumbing, aligning or measuring is involved, a level-transit will be required. How large is your job site? The answer to this will determine what magnification is required, as well as the diameter-working range required. What accuracy is needed? All instruments have accuracy tolerances based on the instrument"s construction, magnification and distance involved. For very precise work, a high-powered instrument may be required even for short-range applications. Is automatic leveling important? Automatic levels are easier and faster to set up for leveling, which may be important if you have several setups on one job site.
Levels and Transit-Levels
Model		Magnification	Leveling Accuracy @ 75 feet	Horiz. Angle	Vertical Angle	Working Range Up to
54-	135	20X	1/4"	——	——	200'
54-	136	20X	1/4"	——	——	200'
54-	140	20X	1/4"	15 min.	——	200'
54-	190B	20X	1/4"	15 min.	——	200'
54-	200B	20X	1/4"	15 min.	1°	200'
54-	300B	22X	1/8"	5 min.	1°	250'
54-	300LP	22X	1/8"	5 min.	1°	250'

Specialty
Model		Magnification	Leveling Accuracy @ 100 feet	Horiz. Angle	Vertical Angle	Working Range Up to
56-	SCT1	20X	1/8"	1 min.	1 min.	250'
56-	DGT2	30X	1/16"	2 sec.	2 sec.	400'
56-	DGT10	30X	1/16"	5 sec.	5 sec.	400'

Automatic Levels
Model		Magnification	Leveling Accuracy	Horiz. Angle	Compensator Setting	Working Range Up to
55-	CAL26	26X	1/16" at 150'	1°	±0.8"	325'
55-	PAL22	22X	3/32" at 150'	1°	±0.8"	250'
55-	PAL24	24X	1/16" at 150'	1°	±0.8"	300'
55-	PAL26	26X	1/16" at 200'	1°	±0.5"	325'
55-	SAL20N	20X	1/8" at 100'	1°	±0.8"	200'
55-	SAL24N	24X	1/16" at 150'	1°	±0.8"	300'
55-	SAL28N	28X	1/16" at 200'	1°	±0.5"	350'
55-	SAL32N	32X	1/16" at 250'	1°	±0.3"	400'