Schneider Electric RKS Series Single/Dual Transmitter Input Receiver Controllers
Single/Dual Transmitter Input Receiver Controllers
RKS Series
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.
| Cat # | Descriptions | Type | Remote SPA | Actionª | Authorityb | Proportional Band |
| RKS-5001 | Single input | One Pipe | None | D.A./R.A. | None | 4% to 40% of input transmitter span adjustable |
| RKS-1001 | Single input | Two Pipe | None | D.A./R.A. | None | 2-1/2% to 40% of primary (input 1) transmitter span adjustable |
| RKS-2001 | Single input | Two Pipe | ± 10% of primary transmitter span | D.A./R.A. | None | 2-1/2% to 40% of primary (input 1) transmitter span adjustable |
| RKS-3002 | Dual inputc | Two Pipe | None | D.A./R.A. | 10% to 200% of primary (input 1) transmitter span adjustable | 2-1/2% to 40% of primary (input 1) transmitter span adjustable |
| RKS-4002 | Dual inputc | Two Pipe | ± 10% of primary transmitter span | D.A./R.A. | 10% to 200% of primary (input 1) transmitter span adjustable | 2-1/2% to 40% of primary (input 1) transmitter span adjustable |
| RKSR-4000 | Replacement single or dual input | Two Pipe | ± 10% of primary transmitter span | D.A./R.A. | 10% to 200% of primary (input 1) transmitter span adjustable | 2-1/2% to 40% of primary (input 1) transmitter span adjustable |
| 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) |
