Instruction Manual
D200129X012
2506/2516 Receiver/Controller
June 2017
14
To start the system:
D For all receiver/controllers, perform steps 1 and 2.
1. See table 3 for specific pressure limits. Be sure the correct supply pressure is available. If necessary, adjust the
regulator to 1.4 bar (20 psig) for a 0.2 to 1 bar (3 to 15 psig) or 2.4 bar (35 psig) for a 0.4 to 2 bar (6 to 30 psig)
receiver/controller range.
2. Turn on the supply pressure to the receiver/controller.
D To make the proper level or output pressure setting for a 2506 receiver/controller, go to step 3. To make the proper
level or output pressure setting for a 2516 receiver/controller, go to step 9.
D For the 2506 receiver/controller:
3. Set the proportional band adjustment at 15 percent (1.5 on the adjustment dial). At this setting, a 0.1 bar (1.8 psig)
input pressure causes a 12 psig output pressure change. Operate the receiver/controller with the proportional band
setting as small as possible.
4. Provide an input pressure equal to the output pressure of the transmitter at a value desired or halfway between the
transmitter output range. For example, on a receiver/controller, if the desired control point is halfway between the
ends of the displacer, provide an input of 0.6 bar (9 psig) which is halfway between 0.2 and 1 bar (3 and 15 psig)
transmitter output range.
5. Set the output pressure adjustment to give a controller output that is halfway between its output range.
6. Vary the input pressure to be sure the full controller output pressure range is produced within the specified input
pressure range.
7. Lock the output pressure adjustment and connect the receiver/controller to the final control element.
8. If the proportional band setting is too narrow, causing instability, widen the proportional band just enough to
stabilize control. After making this adjustment, it may be necessary to reset the output pressure slightly to produce
the proper control range.
D For the 2516 receiver/controller:
9. Set the proportional band adjustment dial at 0 percent (minimum proportional band).
10. Set the reset adjustment to the fastest speed (0.005 minutes‐per‐repeat).
11. Provide an input pressure equal to the output pressure of the transmitter at a value desired or halfway between the
transmitter output range. For example, on a receiver/controller, if the desired control point is halfway between the
ends of the displacer, provide an input of 0.6 bar (9 psig) which is halfway between 0.2 and 1 bar (3 and 15 psig)
transmitter output range.
12. Adjust the output pressure dial to give a controller output somewhere within the output range of the
receiver/controller.
13. Lock the output pressure dial and connect to the final control element.
14. If the proportional band is too narrow causing instability, widen the proportional band or slow the reset just enough
to stabilize control.
Adjustments
To adjust the receiver/controller, open the cover and locate the appropriate adjustment. See figures 14, 15, and 16 for
the location of adjustments.
Set Point Adjustment
To adjust the level set point, loosen the knurled knob and rotate the knob around the INCREASE OUTPUT PRESSURE or
RAISE LEVEL dial. To raise fluid or interface level or increase density, rotate the knob in the direction of the arrow.
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