Model PD750 Universal/Temperature Meter

The PD750 temperature meter handles temperature displaying, alarming and re-transmitting applications with simplicity, accuracy and reliability. The PD750 is available with up to 4 relays, isolated 4-20 mA output, and is factory programmed for easy field selection of the thermocouple or RTD type. Just select your input type (J,K,T,E,R,S thermocouple or 100 ohm RTD), and either Fahrenheit or Celsius and connect the sensor.

• One Model Handles Thermocouples and RTD Inputs
• J,K,T,E,R, & S Thermocouples*
• Platinum RTD (0.00385 or 0.00392 curve)*
• Type T T/C and RTD's displayed to 0.1 deg *
• Displays F or C* - No Calibration Necessary
• NEMA 4X Front Panel
• 2 or 4 Relays + 4-20 mA Output Option

*field selectable

4 Visual Alarms standard

• Front panel Alarm Status Indication
• Perfect for Visual-indication-only Applications
• Any combination of high or low set points
• 0-100% dead-band adjustments

Options

2 or 4 relays

• two or four SPDT, 2 amps @ 240Vac resistive
• Automatic or automatic + manual reset
• Fail-safe action and auto initialization
• 0-100% dead-band adjustment

Isolated 4-20mA transmitter output

• 4-20 mA or 20-4 mA output
• 500 Vdc isolation
• Can be scaled over narrow range
• With or without relay contacts

Specifications

Basic Meter

• Display
: Bright, large, 0.56" (14.2 mm) high efficiency red LED, 4 ½ digits. F or C may be switched on to indicate Fahrenheit or Celsius.
• Cold Junction Reference
: Automatic, fixed , no user calibration needed.
• TC Open Indication
: Open thermocouple circuit indicated by flashing display. Status of relays determined by setting.
• Hold Reading
: Connect switch to ACK/HLD and COM terminals, also connect jumper pins at rear.
• Input Impedance
: Greater than 100 Kohms.
• Power
: 115 VAC or 230 VAC +/- 10%, 50/60 Hz, 10 VA.
• Enclosure
: 1/8 DIN, high impact plastic, UL 94V-0.
• Front Panel
: NEMA 4X, panel gasket provided.
• Connections
: Removable screw terminal block (provided), accepts 24 to 12 AWG
• Alarm Points
: 4,any combination of high or low alarms,
• Alarm Status
Indication: Front panel LED
• Alarm Dead-band
: 0-100 % of full scale, field selectable.

• Ratings
: Two or four relays, 2 Amp SPDT (form C).
• Contacts:
2 A @ 30 Vdc or 2 A @ 250 Vac resistive; 1/14 HP @ 125/250 Vac for NC contacts and 1/10 HP @ 120/250 Vac fo NO contacts, inductive load
• Reset
: User select

1. automaticly when the input passes the reset point
2. aoutomaticly +manually (via user supplied switch of front panel ACK button)

• Fail-safe operation
: the relays are energized in the non-alarmed condition. In the case of a power failure, the relays will go to the alarm state. May be disable with internal jumper.
• Auto initialization
: When power is appled to the meter the relays will always reflect the state of the input to the meter.
• Dead-band
: 0-100%, User selectable

• Calibrated Range
: Anywhere in range of meter, 501 count minimum range
• Output Loop Resistance
: 1500 ohms max. using a 35V external power supply, 500 ohms max. using the built-in loop power supply.
• Loop Power
: Isolated, up to 20 mA at 24 Vdc regulated, noise less than 10 mV p-p.
• External loop power Supply
: 35V max.
• Accuracy
: +/- 0.1% FS, +/- .004 mA
• Isolation
: 500 Vdc or peak AC, input-to-input or input/output-to-power line.

Prices subject to change.

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