5880-1

Multi-Point™ Process Switch

5880-1

22 oz

32 ºF

0 ºC

158 ºF

70 ºC

3.45 W

0.3 A

4 to 20 mA

70 mA DC Maximum; Automatic Trip/Reset using PTC Resistor (Positive Temperature Coefficient) Circuit

115 V

132 O

(4) four independent user set-points; continuously adjustable over full input range. Front panel LED status indicator gives visual confirmation when set‑point value has been exceeded.

Set points can be adjusted to better than 0.05% FS/0.008 mA DC

Set point settings are repeatable to better than 0.05% (long-term repeatability: better than 0.1% FS)

Single deadband potentiometer controls all four set-point settings. Deadband adjustable from 1.0%-12.5% FS. (Factory preset to 1% FS.)

(4) independent SPDT (form‑C) relays; maximum 3.0 Amp at 115 Vac. or 24 Vdc (resistive). Rated for 100,000 cycles/life at rated load.

-40 to 158 ºF

-40 to 70 ºC

The Process Switch can be used to control continuous process operations, provide fail‑safe limiting or alarm functions. In a level application, the switch can be used to actuate pumps, outlet valves or even to initiate CIP cycles. The Multi‑Point™ Process Switch can monitor process variables within any industrial control environment. Multi‑Point™ Process Switch offers greater accuracy than conventional alarm trips. Monitors and triggers simple process functions more easily as compared to PID controllers, PLCs or other logic devices.

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Control output relays are included for each set‑point. During operation, the relay is energized once the milliamp value is exceeded. Both normally-open (N.O.) and normally-closed (N.C.) contacts are provided with the Form‑C type relays. These SPDT relays are rated 3.0 Amps at 115 Vac.

An integral deadband is selectable for the set‑point values offering up to 12.5 % F.S. adjustability. This deadband is adjustable for the set‑points as a group (not independently adjustable for each set‑point). The Multi‑Point Process Switch is factory preset with a nominal 1% F.S. deadband.

This unit features protection against input circuit overloads and automatically resets when current level drops. Using advanced PTC resistor technology, the protection circuit trips whenever the signal input current exceeds 70 mAdc.

A positive temperature coefficient (PTC) resistor circuit is incorporated into the Process Switch for protection against overcurrent situations. This thermal resistor increases in resistance when an input current ≥ 70.0 mAdc heats it above a certain point. In the switched state, a latched high‑resistance limits current to no more than a few milliamps. The resistor circuit resets automatically when the input drops below 70 mAdc. (Protective resistor circuit is rated for 30 trip/cycles max.)

The Multi‑Point™ Process Switch is a single‑channel analog set‑point control. It provides continuous monitoring of a typical process loop with four independent set‑points that are user adjustable over the full input range. The Process Switch accepts any proportional, externally powered two‑wire 4‑20 mAdc current loop from any typical process transmitter (level, pressure or temperature). Unit must be wired in series with transmitter to maintain proper polarity at the + and – terminals. Internal input resistance of the Process Switch is 132 ohms (nominal) during normal operation.

The Process Switch has four user set‑points that can be adjusted to control continuous process operations, provide fail‑safe limiting or alarm functions. Front‑panel LED status indicators correspond to SET1, SET2, SET3 and SET4 adjustments and output relays; when illuminated, the LED indicates that the set‑point has been reached and the corresponding relay energized.

Four independent SPDT (single‑pole/double‑throw) relays are provided. Form‑C configuration includes normally‑open (N.O.), normally closed (N.C.) and common (C) relay contacts. Rated for 3.0 Amps maximum at nominal 115 Vac. The relay is energized when the corresponding set‑point milliamp value is exceeded.

Multi‑Point™ Process Switch is a single‑channel analog set‑point control. It provides continuous monitoring of a typical process loop with four independent set points that are user adjustable over the full range. The process switch may be used with any process transmitter (pressure, level or temperature) that has a two‑wire, 4‑20 mA output.

All KING‑GAGE®, a NOSHOK Company products are guaranteed to be free from defects in material and workmanship for one year from the date of purchase. Repair services warranty: 90 days limited warranty.

WARNING: This product can expose you to chemicals including lead and nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Process switch is compatible with any 4 mA to 20 mA output device such as the electronic sensor or D/P transmitter. Requires 115 Vac.