The DHC-100 positioner is a high performance, high resolution digital positioner. A simple three button control is used to configure ALL parameters that the unit needs for a variety of applications, and eliminates the need for special meters and/or tools for calibration. As long as there is supply power, the unit can easily be field calibrated.
This positioner can be calibrated for various command types (such as 4-20mA, 1-5 VDC, 0-5 VDC, 0-10 VDC, or digital) and also the default operation upon loss of command (such as fail open, fail close, or fail as is). The optional transmitter/auxiliary limit switch module is installed into the positioner card via plug and socket. This allows a user defined feedback signal of current or voltage, and provides 3-SPST relay contacts for open position, closed position and a fault condition.
Specifications
Size:
A94, B94
Torque:
150 in/lbs – 300 in/lbs
Voltage:
120 VAC, 1-phase, 50/60Hz
Switches:
Two (2) single pole, double throw (2SPDT) , 15 amp rated
Duty Cycle:
A94 = 100%
B94 = 75%
Conduit Entry:
Two (2) 1/2″ FNPT
Maximum Ambient Temperature:
150 F
Amp Draw:
A94 = 0.5A
B94 = 0.8A
Cycle Time per 90 :
A94, B94 5 seconds*
*Cycle times are approximate
Series 94 Standard Features
- Reversing, brushless capacitor run motor (115 VAC & 230 VAC)
- All 115 VAC and 230 VAC motors are CE Compliant, and bear the CE mark
- Integral thermal overload protection for motor windings with automatic reset (115 VAC & 230 VAC)
- 75% – 100% duty cycle motor
- Permanently lubricated gearing
- Type 4X enclosure
- ZYTEL FR50 Engineered resin enclosure
- ISO mounting configuration
- Two (2) 1/2″ FNPT conduit entry to eliminate cross feed between control, feedback, and power signals
- Highly visible position indicator for positive position of valve, even at a distance
- Declutchable manual override: Push down on handle and rotate
- Output torque: Series 94 actuators have an output torque range from 150 in/lbs to300 in/lbs
Positioner Standard Features
- High resolution
- Simple Pushbutton calibration
- Calibrated as standard or reverse acting
- Multi-meter not required for potentiometer calibration
- Control signal not required for calibration
- Options install into positioner via plug and socket
- Selectable fail position for loss of input signal; fail open, fail close, or fail as is
- Selectable input signal; 4-20mA, 1-5 VDC, 0-5 VDC, 0-10 VDC, or digital
- Loss of command and feedback potentiometer fault detection
- Motor stall detection will sense when the motor has reached a stall condition and remove power from the motor
- Voltages: 230 VAC, and low AC or DC
- Heater and thermostat
- Mechanical Brake
- 4-20 mA 0utput transmitter with 3-SPST Relay Contacts