Schneider Electric RKS Series Single/Dual Transmitter Input Receiver Controllers


For use in conjunction with remote proportional transmitters for proportional control of pneumatic actuated dampers, valves, etc., in air conditioning systems. The transmitter-receiver-controller system may be used to control temperature, humidity, or pressure.
• Nozzle and flapper relay-type receiver controllers.
• Linear, stable and responsive.
• Models available for one, two or three inputs.
• Mounting provided for two (1/8 NPT) 1-1/2 in. stem-mounted receiver-gauges and two 1-1/2 in. stem-mounted pressure gauges.
• Barbed fittings for 1/4 in O.D. plastic tubing.
• Setpoint scales available to match transmitter ranges. Model No.
Select a link under the "item" tab below to order.
Type | Actionª | Cat # | Remote SPA | Authorityb | Proportional Band | Descriptions |
One Pipe | D.A./R.A. | RKS-5001 | None | None | 4% to 40% of input transmitter span adjustable | Single input |
Two Pipe | D.A./R.A. | RKS-1001 | None | None | 2-1/2% to 40% of primary (input 1) transmitter span adjustable | Single input |
Two Pipe | D.A./R.A. | RKS-2001 | ± 10% of primary transmitter span | None | 2-1/2% to 40% of primary (input 1) transmitter span adjustable | Single input |
Two Pipe | D.A./R.A. | RKS-3002 | None | 10% to 200% of primary (input 1) transmitter span adjustable | 2-1/2% to 40% of primary (input 1) transmitter span adjustable | Dual inputc |
Two Pipe | D.A./R.A. | RKS-4002 | ± 10% of primary transmitter span | 10% to 200% of primary (input 1) transmitter span adjustable | 2-1/2% to 40% of primary (input 1) transmitter span adjustable | Dual inputc |
Two Pipe | D.A./R.A. | RKSR-4000 | ± 10% of primary transmitter span | 10% to 200% of primary (input 1) transmitter span adjustable | 2-1/2% to 40% of primary (input 1) transmitter span adjustable | Replacement single or dual input |
Receiver-controller: | Forced balanced pneumatic amplifier |
Setpoint: | Adjustable, qF, qC, in. water, mm water, % relative humidity labels (included with controller) |
Proportional band: | Field adjustable (refer to Model Chart) |
Input signals: | 3 to 15 psig (21 to 103 kPa). Maximum input pressure 30 psig (207 kPa) |
Output air signal: | 0.5 psig (3.4 kPa) to supply air pressure -0.5 psig (-3.4 kPa). |
Action: | Direct. Field changeable to reverse (refer to Model Chart) |
Authority: | |
RKS-3002, -4002, RKSR-4000: | Field adjustable (refer to Model Chart) |
RKS-1001, -2001, -5001: | None |
RKS-5001: | Can be used as a 1:1 reverse acting relay to reverse a transmitter signal to obtain direct reset when used as a signal into input 2 of RKS-3002, RKS-4002, or RKSR-4000 |
Ambient temperature limits : | |
Shipping and storage: | -40 to 150qF (-40 to 65qC) |
Operating: | 40 to 150qF (4 to 65qC) |
Humidity: | 10 to 98% RH, non-condensing |
Supply air pressure: | Clean, oil free, dry air required (reference EN-123) |
Nominal: | 20 psig (138 kPa) |
Minimum: | 18 psig (124 kPa) |
Maximum: | 30 psig (207 kPa) |
Air connections : | |
Tubing: | Barb connectors for 1/4 in. O.D. plastic tubing |
Gauge ports: | Integral for AKS-6000 Series gauges (except for the RKS-5001) |
Air consumption for sizing air compressor : | |
RKS-1001, 2001, 3002, 4002, RKSR-4000: | 13.8 scim (3.8 mL/s) plus 41.5 scim (11.4 mL/s) for each transmitter and remote setpoint. |
RKS-5001: | 41.5 scim (11.3 mL/s) |
Air capacity for sizing air mains : | |
RKS-1001, 2001, 3002, 4002, RKSR-4000: | 16 scim (4.4 mL/s) plus 36 scim (13.2 mL/s) for each transmitter and remote setpoint |
RKS-5001: | 48 scim (13.1 mL/s) |
Cover: | Order separately, except RKSR-4000 factory supplied, refer to Accessories. Used when mounting receiver-controllers remote from cabinet or where susceptible to damage |
Mounting: | Upright on surface of wall or panel. |
Dimensions: | |
RKS-1001 through 4002,RKSR-4000: | 5-23/32 H x 7 W x 4 D in. (145 x 178 x 102 mm) |
RKS-5001: | 4 H x 3-3/4 W x 2-1/2 D in. (102 x 95 x 64 mm) |