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1651C Displayless Self-Tuning/Digital PID Pressure Controller

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1651C Displayless Self-Tuning/Digital PID Pressure Controller

Part Number: 1651C2SProduct Details

Overview

The MKS Instruments 1651 is a self-tuning, displayless pressure controller which operates from user-supplied ±15 VDC input power. Its compact size allows for installation anywhere on the process system, saving valuable rack space. The 1651 can be commanded through RS-232 communications, or it will accept an analog set point for pressure or position control. Alternately, there are five preprogrammable pressure or position set points which can be selected via TTL signals. It is fully compatible with the electrical signals, connectors, and software of the MKS 651 Controller. The self-tuning algorithm determines optimal control parameters for any set point in the range of the valve by learning time constants, transfer functions of the valve and plumbing, valve gain, and other important parameters.

Specifications

Part Number:	1651C2S
Ambient Operating Temperature	15°-50°C (60°-122°F)
Analog Output Signal	0-5 or 0-10 VDC for 0-100% valve position and 0-10 VDC for 0-100% F.S. pressure
Battery backup	N/A
CE Mark Compliance - Product Safety	N/A
Connectors	Power Connector - 9-pin Type "D" male Valve - 9-pin Type" D" female I/O - 37-pin Type "D" female Transducer - 15-pin Type "D" female RS-232 - 9-pin Type "D" male
Controller Repeatability	±0.1% of F.S.
Display	N/A
Display Units	N/A
Input Power Required	±15 VDC ±5%
Interface	Analog, TTL (16 inputs, 6 outputs) and RS-232
Maximum Input Current	Not to exceed 7 Amps
Minimum Input Current	For Type 653 Valve - 1 Amp + transducer current For Type 253 Valve - 0.5 Amp + transducer current
Output Power	Available to external transducers - ±15 Volts @ 3 Amps max. (90 Watts), when powered from an external power supply with a capacity of ±15 Volts @ 5 Amps (150 Watts)
PID Control	Standard
Position Control Capability	Standard
Pressure Input Signal	0-5 VDC, 0-10 VDC, 0-1 VDC, selectable
Relay Outputs	2, process limits -24 Volts VDC @ 1 Amp resistive
Remote Control Overide (Open,Close,Hold)	Standard
Remote Zero	Standard
Self-Tuning Unit	Standard
Set Points - Programmable	5 total, programmable in any combination for pressure or position (adjustable via RS-232; selectable via TTL or RS-232)
Set Points - External Analog	1; pressure or position, 0-5 or 0-10 VDC
Size	3.5" H × 6.7" W × 9.15" D
Soft Start	Standard
Valves Operated	Type 653 and 253 Exhaust Throttle Valves

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