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GP901 M-3343 05/08
Network type Orbit - RS485 2-wire multi-drop (up to 31 per channel)
Network speed 1.5Mbaud, 187.5k Baud or 9600 Baud (do not use 9600
Baud for New Applications as this will be phased out)
Network Control Character Break Character - low (space) of >90 us (187.5k Baud) or
>1.2mS (9600 Baud)
Command Character Format 1 start, 8 data, 1 odd parity, 1 stop bit
Accuracy
The error quoted assumes periodic re-setting against a setting master in accordance with normal gauging
practice (not less than once per day). As the Digital Probe may be used anywhere on its stroke the setting
master itself must be of known dimensions, but does not need to be precisely on its nominal value. The error
quoted for the Digital Probe therefore includes a factor dependant on the distance between the setting master
and the component being gauged.
Where D = difference in mm between setting master and component.
Error at calibration temperature: -
0.5 mm Probes i.e. GP901-05-S 6 0.05 mm 6 0.2% x D
1 mm Probes i.e. GP901-1-S 6 0.1 mm 6 0.1% x D
2 mm Probes i.e. GP901-2-S, GP901-2-P 6 0.1 mm 6 0.1% x D
5 mm Probes i.e. GP901-5-S, GP901-5-P 6 0.1 mm 6 0.2% x D
10 mm Probes i.e. GP901-10-S, GP901-10-P 6 0.1 mm 6 0.2% x D
20 mm Probes i.e. GP901-20-S, GP901-20-P 6 0.1 mm 6 0.2% x D
Gauge Head Specications
Specications Common to All Gauge Head Types
Body Material Stainless Steel 400 Series
Probe tips various types available
Non-repeat <0.15 mm
Max. Angular Rotation of Tip 2°
Gaiter Material Viton®
Max. Probe tip tightening Torque 0.22 Nm – M2.5 Thread
(when changing tip please take care not to damage probe) 0.12 Nm – M2 Thread
Storage Temperature Range -20°C to +100°C
Operating Temperature +5°C to +80°C
Environmental Protection (see mounting notes) IP 65 (with gaiter)
Cable Standard (not all types) 2m screened, PUR, insulation
Option (not all types) Standard cable with stainless steel or plastic braid
Pneumatic Operation (Not GP901-05 version)
Minimum operating pressure With Gaiter
(bar) Without Gaiter
0.4
0.3
Maximum operating pressure With Gaiter
(bar) Without Gaiter
1.0
2.0
Air leak rate ml/min. at 1.0 bar With Gaiter
Without Gaiter
<10
<150