red lion CUB4RT Manual

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MODEL CUB4RT - INTELLIGENT RTD TEMPERATURE INDICATOR
DESCRIPTION
The CUB4RT is a 9 to 26 VDC powered, microprocessor based temperature
indicator with decimal display for use with Pt385, Pt392, Ni672, and Cu427
RTDs. Programmable features include RTD type, Fahrenheit or Celsius display,
input filtering, input filter range, and a user offset. The 0.48", 5 digit LCD
display provides annunciators for Fahrenheit or Celsius indication and is
available with or without a backlight.
SAFETY SUMMARY
All safety related regulations, local codes, and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
CAUTION: Read complete instructions prior
to installation and operation of the unit.
SPECIFICATIONS
1. DISPLAY: Reflective LCD or Transmissive LCD with red backlight, 5 digit
display 0.48"(12.2 mm) height, F or C annunciators.
2. POWER: 9 to 26 VDC @ 65 mA with backlight, 25 mA without backlight.
Reverse polarity protected.
Must use an RLC model MLPS or a Class 2 or SELV rated power supply.
DIMENSIONS In inches (mm)
USER PROGRAMMABLE INPUT
!
(RTD types Pt385, Pt392, Ni672, Cu427)
! PROGRAMMABLE TEMPERATURE OFFSET
! SELECTABLE F or C WITH 1 or 0.1 RESOLUTION
! F OR C DISPLAY ANNUNCIATORS
! CONFORMS TO ITS-90 TEMPERATURE SCALE
! 0.48 INCH (12.2 mm) HIGH DIGITS
5 DIGIT LCD, POSITIVE REFLECTIVE OR NEGATIVE
!
TRANSMISSIVE WITH RED BACKLIGHT
OPEN SENSOR INDICATION
!
! NEMA 4X/IP65 SEALED FRONT BEZEL
UL Recognized Component,
File # E179259
3. RANGE & ACCURACY:
Accuracy reflects ALL errors @12 VDC supply and 15 minute warm-up,
except RTD probe errors and any unbalanced lead resistance effects.
Jumper Position
Nominal
Type (See Wiring
@ 0°C
Diagram)
Pt392 B 100 Ohm
Pt385 B 100 Ohm
Ni672 B 120 Ohm
Cu427 A 9.035 Ohm -100 to 260
Summary of errors
Lead resistance effects:
Balanced lead resistance automatically compensated up to max per lead.
Unbalanced lead resistance uncompensated.
Pt392, Pt385, Ni672: 10 ohms/lead; 20 ohms total
Cu427: 3 ohms/lead; 6 ohms total
Temperature effects:
Slope: 100 ppm
Offset: 1 µV/°C
Conformity error: 0.1C max.
Linearity, conversion and calibration errors:
Pt392, Pt385, Ni622: 0.6°C
Cu427: 0.8°C max.
4. INPUT:
Isolation: SIG+, SIG-, and EXC terminals are NOT electrically isolated from
the power supply.
Response Time: 500 msec.
OPEN
Failed Sensor Display:
Overrange/Underrange Input:
Overrange/Underrange Display: "
Normal Mode Rejection: 40 dB @ 50/60 Hz
Common Mode Rejection: 100 dB @ DC to 60 Hz
Note: Recommended minimum clearance (behind the panel) for
mounting clip installation is 2.1" (53.3) H x 3.0" (76.2) W.
1
Bulletin No. CUB4RT-A
Drawing No. LP0415
Released 3/02
Accuracy
Range @ 23°C
±1LSD
°
±0.7
-200 to 850
C
±0.7°C
-200 to 850
±0.7°C
-80 to 260
±0.9°C
OLOL/ULUL
..... .....
"/ "- "
PANEL CUT-OUT
Accuracy
@ 0 to 50°C
±1LSD
°
±2.7
C
±2.7°C
±1.5°C
±1.7°C