Brochure
AKR-40605
F-27383-1 © Copyright 2006 TAC. All Rights Reserved. 11
Limiting, 1:1 Ratio Relay and Scale Plates
Model Chart
Specifications
Pneumatic 1:1 ratio direct acting relay is used to
limit minimum or maximum output pressure. The
AKR-40605 can also be used as a manual
positioner, 1:1 ratio relay, or lowest of two
pressures selector. Relay will also increase the
capacity of a controller (except when used as
maximum output limiter or lowest pressure
selector).
Model No. Description Output
Air Connection Code
Port P
Port B
a
a
Output pressure will drop to 0 when main air supply is reduced to 0. The reduced air pressure allows controlled device(s) to return to an ensured safe
condition when main air pressure to the AKR-40605 is relieved.
Port M
AKR-40605
Minimum output limiting Minimum output adjustable 0 to 20 psig (0 to 138 kPa) Pilot
Output
Main
Maximum output limiting Maximum output adjustable 0 to 20 psig (0 to 138 kPa)
Open to
atmosphere
Input
Manual positioner Manually selected from 0 to 20 psig (0 to 138 kPa)
Main
1:1 Ratio relay 0 to 20 psig (0 to 138 kPa) Pilot
Lowest pressure selector Lowest of two pressures 0 to 20 psig (0 to 138 kPa) Input Input
Action 1:1 direct.
Output Refer to Model Chart.
Construction
Housing Polysulfone.
Diaphragm Neoprene.
Adjustments Refer to Model Chart for outputs.
Air pressure Clean, oil free, dry air required (reference EN-123).
Maximum 30 psig (207 kPa).
Nominal supply 15 to 25 psig (103 to 138 kPa).
Ambient limits
Shipping and storage -40 to 160qF (-40 to 71qC).
Operating 32 to 140qF (0 to 60qC).
Humidity 5 to 95% RH, non-condensing.
Air connection code Refer to Model Chart.
Air connections Barbed for 1/4 in. O.D. plastic tubing.
Air consumption for sizing air
compressor
3.5 scim (0.9 mL/s).
Air capacity for sizing air mains 16 scim (4.4 mL/s).
Mounting
Panel, wall or in-line; mounting plate and two push-in fasteners for perforated metal subpanel
provided.
Panel space required 4 H x 2-7/16 W x 1-3/4 D in. (102 x 62 x 44 mm).
AKR
-
0
605
AKR-4
0605
10
20
AKR-4
0605
S
hown with AK-
53098
Scale Plate and Knob