Laurel Electronics Laureate Thermocouple Panel Meter-Controller - Manual

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 1
LAUREL
ELECTRONICS, INC.
Laureate™ Thermocouple
Panel Meter / Controller
Features
• Factory calibrated for thermocouple types J, K, T, E, N, R, S
• Entire range of each thermocouple in one scale
• Highly accurate and repeatable
• Selectable 1° or 0.°1, degrees Celsius, Fahrenheit, Kelvin or Rankin
• Up to 60 conversions per second
• Peak or valley display
• Universal AC power, 85-264 Vac
• 1/8 DIN case sealed to NEMA-4X from front panel
• Optional serial I/O: Ethernet, USB, RS232, RS485, Ethernet-to-RS485 converter
• Optional relay output: dual or quad relays, contact or solid state
• Optional isolated analog output: 4-20 mA, 0-20 mA, 0-10V, -10 to +10V
• Optional low voltage power: 10-48 Vdc or 12-32 Vac
Description
The Laureate thermocouple meter is factory calibrated for type
J, K, T, E, N, R and S thermocouples for exceptional accuracy
and repeatability. The entire span of each thermocouple type is
presented in a single range. The thermocouple type, unit of
measure (°C or °F), resolution (1° or 0.1°), and upscale or down-
scale open sensor indication are selectable from the front panel
or via the serial interface. Display in Kelvin or Rankin is selected
by offsetting the Celsius or Fahrenheit ranges. Cold junction
compensation is standard.
All ranges for all thermocouple types are digitally calibrated at
the factory, with calibration factors stored in an EEPROM on the
signal conditioner board. This allows temperatures sensors and
signal conditioner boards to be changed in the field without
recalibrating the meter.
High read rates at up to 60 or 50 conversions per second
while integrating the signal over a full power cycle are provided
by Concurrent Slope (US Pat 5,262,780) analog-to-digital
conversion. High read rates are ideal for peak or valley capture,
real-time computer interface, and control. Peak and valley values
are automatically captured. These may be displayed via a front
panel pushbutton command or a control signal at the rear
connector, or be transmitted as serial data.
Digital filtering is selectable for electrically noisy environments,
including a batch averaging filter and an adaptive moving aver-
age filter which provides a choice of 8 time constants from 80 ms
to 9.6 s. When a significant change in signal level occurs, that
filter adapts by briefly switching to the shortest time to follow the
change, then reverts back to the selected time constant. In a
selectable Auto filter mode, the filter time constant is automatic-
ally selected based on detected signal noise.
Designed for system use. Optional plug-in boards include
Ethernet and other serial communication boards, dual or quad
relay boards, and an isolated analog output board. Laureates
may be powered from 85-264 Vac or optionally from 12-32 Vac
or 10-48 Vdc. The display is available with red or green LEDs.
The 1/8 DIN case meets NEMA 4X (IP65) specifications from the
front when panel mounted. Any setup functions and front panel
keys can be locked out for simplified usage and security. All
power and signal connections are via UL / VDE / CSA rated
screw clamp plugs.
Specifications
TC Type Range Conformity Error
J -210°C to +760°C (-347°F to +1400°F) ±0.09°C (±0.16°F)
K -244°C to +1372°C (-408°F to +2501°F) ±0.1°C (±0.17°F)
T
0°C to +400°C (32°F to 752°F)
-257°C to 0°C (-430°F to +32°F)
±0.03°C (±0.05°F)
±0.2°C (±0.36°F)
E -240°C to +1000°C (-400°F to +1830°F) ±0.18°C (±0.32°F)
N -245°C to +1300°C (-410°F to +2370°F) ±0.10°C (±0.17°F)
R -45°C to +1768°C (-49°F to +3214°F) ±0.17°C (±0.31°F)
S -46°C to +1768°C (-51°F to +3213°F) ±0.12°C (±0.22°F)