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
| Pre-calibrated Ranges |
| Input |
Range | Accuracy |
| Type J | -328 to 1382 deg F | +/-1.4
deg F |
| |
-200 to 750 deg C | +/- 0.8 deg C |
| Type K | -328 to
2498 deg F | +/- 1.7 deg F |
| | -200 to 1330 deg C |
+/-0.9 deg C |
| Type
T | -330.0 to 760.0 deg F | +/-1.5
deg F* |
| |
-200. To 404.0 deg C | +/-0.8 deg C** |
| Type E | -328 to
1832 deg F | +/- 1.4 deg F |
| | -200 to 1000 deg C |
+/-0.8 deg C |
| Type
R | 32 to 3212 deg F | +/-4.8
deg F |
| |
0 to 1767 deg C | +/- 2.7 deg C |
| Type S | 40 to
3214 deg F | +/-5.7 deg F |
| | 4 to 1768 deg C | +/-2.9
deg C |
| 100 ohm RTD |
-328 to 1382 deg F | +/-0.6 deg F |
| | -200
to 750 deg C | +/-0.3 deg C |
| *The accuracy from -450 to -331 deg F is
+/-4.6 deg F |
| **The
accuracy from -263 to -201 deg C is +/-2.6 deg C |
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.
Relays
- 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
- automaticly when the input
passes the reset point
- 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
Isolated 4-20 mA Transmitter output
- 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.
| model |
description |
| PD750-3-N | No options |
| PD750-3-14 | 2 relays |
| PD750-3-15 | 4-20
mA output |
| PD750-3-16 |
2 Relays + 4-20 mA output |
| PD750-3-17 | 4 relays |
| PD750-3-18 | 4 relays + 4-20
mA output |
| PDX-6901 |
Snubber for inductive loads |
| Use a -4 instead of a -3 to specify 230 Vac
powered meters at no extra cost. |
Prices subject to change.
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street
Lawrence, KS 66049
USA
| phone (785) 841 3089
FAX (785) 841 0434
E-mail inform@xtronics.com
WEB http://www.xtronics.com |  |
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