Brochure
R470 (2386-601)
Pneumatic-Electric High/Low Alarm Switch
Model Chart
Specifications
Typical Applications
The switch is used to provide high and low signal
alarm. Two independently adjustable SPDT switches
provide 3 to 15 psig high and low alarm contact
capability in this single device.
Features:
• The R470 has very narrow switching differential, and can be
used with any pneumatic transmitter to set two independent
high and low alarm points within the range of the transmitter.
• It can also be used for other pneumatic applications requiring
separate adjustment of two independently adjustable electrical
switching actions.
• Has two SPDT switches. The switching point of each can be
independently adjusted.
• Must be mounted in enclosure.
Model No.
Wholesale
Model No.
Description
R470 2386-601 Pneumatic-electric high/low alarm switch.
Environment
Ambient temperature limits -30 to 160qF (-34.4 to 71.1qC).
Locations Avoid areas with excessive vibration or corrosive materials.
Supply air pressure Control air only; clean, dry, oil free air required (Ref. EN-123).
Nominal 3 to 15 psig (21 to 103 kPa) or 3 to 27 psig (21 to 186 kPa).
Maximum 100 psig (689.5 kPa).
Connections
Air 1/4 in. 18 NPT female.
Wiring Screw terminals.
Setpoint
Adjustable, 1 to 27 psig (7 to 186 kPa). Each switch set independently by a self-locking, slotted
screw.
Switch action Two single pole, double throw, snap acting switches.
Switch rating
10A at 125/250 Vac, 0.5A at 28 Vdc.
(Note: Not suitable for switching thermocouples or RTD sensors or loads of less than 120 volts.)
Differential (each switch) Non-adjustable, 0.05 psig (at lowest setpoint) to 0.25 psig (at highest setpoint) (34 to 1.7 Pa).
Mounting Two lugs with clearance holes for #10 screws. Mounts in any position.
Dimensions 4-3/4 H x 3-1/2 W x 3-1/2 D in. (120 x 89 x 89 mm).
R470
(2386-
6
M
C
NC
NO
C
Low-Temp Alarm
R470
N100-0010
Temperature
Transmitter
(3-15 psig)
High-Temp Alarm
1 Switches operate independentl
y
of each other.
Figure 1 Typical Application.
F-27383-1 © Copyright 2006 TAC. All Rights Reserved. 85