APG RPM Explosion Proof Resistive Chain user manual - Manual (Page 4)

RPM Series Rev. D6, 10/09
4
Automation Products Group, Inc.
APG...Providing tailored solutions for measurement applications
Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • [email protected]
• Description
The RPM utilizes reed switches in the instrument’s stem and a permanent
magnet in the float. As the float rises or falls with the level of the liquid, the
magnet inside the float acts on the reed switches inside the stem and provides a
resistive-chain output. The RPM is also available with optional electronics that
convert the resistance output into a 4-20mA signal.
• Handling of the Intrinsically Safe RPM Series
Electrical ratings; 12 to 24 Volts DC, 4 - 20 ma
Exia Class I Division 1; Groups C, D T3C (Max. Temp. 85°C)
Vmax = 30VDC, Imax = 130ma, Ci = 3nF, Li = 0uH
ATEX Directive: 0334
KEMA 05 ATEX 1207 X
II 1 G EEx ia IIB T3
-40°C
≤
Ta
≤
+85 °C
Ui
≤
30 V, Ii
≤
130 mA, Pi
≤
1 W, Ci
≤
3 nF, Li
≤
0 mH
All repairs and adjustments of the RPM must be made by the factory. To
modify, disassemble, or alter the RPM on site is strictly prohibited. Do not
loosen any joints, with the exception of the housing cover for electrical
connection.
• Handling of the Explosion-Proof RPM Series
Electrical ratings; 5 to 15 Volts DC, 100 ma
Class I Division 1 Groups C & D (Max. Temp. 40°C.)
Class I Division 2; Groups C & D (Max. Temp 85°C.
Probe may be wired as a Non-Incendive device in Class I Division 2 Groups C &
D areas. All repairs and adjustments of the RPM must be made by the factory.
To modify, disassemble, or alter the RPM on site is strictly prohibited. Do not
loosen any joints, with the exception of the housing cover for electrical
connection.