Omega Products GP901-1-S User Manual
DIGITAL GAGING PROBES
FOR LINEAR DISPLACEMENT MEASUREMENT
GP901 Series
Starts at
$
610
DR601 meter, $1130,
see page J-10.
⻬ Absolute Measurement
⻬ Integrated Probe and Electronics
⻬ Resolution to 0.06 Microns (1.5 µin)
⻬ Rugged Design for Harsh Environments
OMEGA’s GP901 Series digital gaging probes are a
refinement of the LVDT, making use of a proven
mechanical design and robust construction. In a digital
gage probe, the coil forms part of a frequency-sensitive
circuit. As the core moves, the inductance of the coil
changes, causing a change in the frequency. By
comparing frequencies, the user can determine the
movement of the core.
Each digital probe is calibrated on a laser interferometer
in a controlled environment, giving improved linearity
over the full stroke compared with LVDTs. Signal
conditioning and an A/D converter are contained in an
in-line probe electronics assembly. The electronics
assembly provides a digital signal that is compatible
with the DR601 display or the LDN232 RS232
adaptor featured on the following pages.
GP901-1-S, $650,
shown larger
than actual size.
GP901-5-S, $635,
shown larger
than actual size.
SPECIFICATIONS
Accuracy:
GP901-1-X: ±0.24 microns ±K x 1.0 micron
GP901-2-X: ±0.24 microns ±K x 1.0 micron
GP901-5-X: ±0.64 microns ±K x 2.0 micron
GP901-10-X: ±1.20 microns ±K x 2.0 micron
(K = the difference between component range
and setting master)
Operating Temp: 0 to 80°C (32 to 176°F)
Electronics Assembly: 0 to 60°C (32 to 140°F)
Storage Temp: 0 to 80°C (32 to 176°F)
Calibration Temp: 20°C (68°F)
Environmental Rating: NEMA 12 (IP65)
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
MODEL NO. PRICE RANGE: mm (in) ACTUATION COMPATIBLE INSTRUMENTS
GP901-1-S $650 0 to 1 (0 to 0.04) Spring loaded DR601 (page J-10), LDN232 (page J-9)
GP901-2-S 610 0 to 2 (0 to 0.08) Spring loaded DR601 (page J-10), LDN232 (page J-9)
GP901-5-S 635 0 to 5 (0 to 0.2) Spring loaded DR601 (page J-10), LDN232 (page J-9)
GP901-10-S 660 0 to 10 (0 to 0.4) Spring loaded DR601 (page J-10), LDN232 (page J-9)
GP901-2-P 660 0 to 2 (0 to 0.08) Pneumatic DR601 (page J-10), LDN232 (page J-9)
GP901-5-P 700 0 to 5 (0 to 0.2) Pneumatic DR601 (page J-10), LDN232 (page J-9)
GP901-10-P 745 0 to 10 (0 to 0.4) Pneumatic DR601 (page J-10), LDN232 (page J-9)
Comes complete with operator’s manual.
Ordering Example: GP901-10-S, spring-loaded digital gaging probe, 0 to 10 mm (0 to 0.04") range, $660.
J-7
16.5
(0.65)
59.3
(2.33)
64.5
(2.54)
DIGITAL GAGING PROBES
C
2.0
(0.08)
4.5
(0.18)
8.0
(0.31)
3.0
(0.12)
3.5
(0.14)
F1 (fully extended)
F2 (fully retracted)
8h6 (0.315)
F1 (fully extended)
F2 (fully retracted)
2.0
(0.08)
1.0
(0.04)
C
30.0
(1.18)
8h6 (0.315)
0.14
(3.5)
0.5
(0.02)
2
8.0
(1.10)
ø8h6 (0.315)
3.5
(
0.14)
7.45
(0.293) fully extended
5.95
(0.234) fully retracted
SPRING ACTUATED Dimensions: mm (in)
DIM GP901-1-S GP901-2.5-S GP901-5-S
C 46.00 65.00 89.00
(1.81) (2.56) (3.50)
1 13.90 17.40 25.40
F
0.55) (0.69) (1.00)
(
F2 10.90 11.40 14.40
(0.43) (0.45) (0.57)
GP901-1-S, $650, shown
close to actual size.
GP901-5-S, $635, shown
close to actual size.
GP901-1-S
GP901-X-S Series
SPRING ACTUATED
PNEUMATICALLY ACTUATED Dimensions: mm (in)
DIM GP901-1-P GP901-2.5-P GP901-5-P
C 52.00 71.00 96.00
F1 13.90 17.40 25.4
F2 10.90 11.40 14.40
(2.05) (2.80) (3.78)
(0.55) (0.69) (1.0)
(0.43) (0.45) (0.57)
Dimensions: mm (in)
2, 5 and 10 mm (0.08, 0.2 and 0.4") RANGES
ø = diameter
DISPLACEMENT
J
PROBE ELECTRONICS
SPECIFICATION BY RANGE
DESCRIPTION SPRING ACTUATED PNEUMATIC
Calibrated stroke mm (in) 1 (0.04) 2 (0.08) 5 (0.20) 10 (0.4) 2 (0.08) 5 (0.2) 10 (0.4)
Total travel mm (in) 1.5 (0.6) 3 (0.12) 6 (0.24) 11 (0.43) 3 (0.32) 6 (0.24)11 (0.43)
GP901-X-P Series
PNEUMATICALLY ACTUATED
Resolution (micron) 0.06 0.12 0.32 0.64 0.12 0.32 0.64
Temp coef.
Tip pressure: g (oz) 70 (2.5) 70 (2.5) 70 (2.5) 70 (2.5) 80 (2.8) 80 (2.8) 70 (2.5)
(0 to 60°C) ppm/°C
100 80 100 150 80 100 150
J-8
Dimensions: mm (in)
Replaceable tip: M2.5 thread
COMPATIBLE INSTRUMENTS
MODEL NO. DESCRIPTION PAGE
DR601 Digital readout J-10
LDN232 RS232 adaptor J-9
Recommended Reference Book:
Analog Signal Processing,
EE-2560, $125.
See Section Y for Additional Books
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