LAUREL
Thermocouple
ELECTRONICS, INC.
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 downscale 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.
Specifications
Laureate™
Panel Meter / Controller
Digital filtering is selectable for electrically noisy environments,
including a batch averaging filter and an adaptive moving average 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 automatically 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.
LAUREL
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
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)
ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 1
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)
Accuracy
Calibration
Overall accuracy at 25°C
Span tempco
Reference junction accuracy
Span tempco
Electrical
Input resistance
Input current
Max lead resistance
Overvoltage protection
NMR at 50/60 Hz
CMR, DC-60 Hz
CMV, DC-60 Hz
A-to-D Conversion
Technique
A-to-D Rate
Output Update
Display Update
Display
Readout
Color
Indicators
Open sensor indication
Power
NIST Monograph 125 (IPTS-68)
±0.01% of full span + conformity error
±0.003% of reading/°C
0.5°C, 10°C to 40°C
±0.003% of reading/°C
1 GΩ
100 pA
1 kΩ max for rated accuracy
125 Vac
80 dB plus selectable digital filter
120 dB with 500 ohm imbalance
250 Vac from power and earth grounds
Concurrent Slope (Pat 5,262,780)
60/s at 60 Hz, 50/s at 50 Hz
56/s at 60 Hz, 47/s at 50 Hz
3.5/s at 60 Hz, 3/s at 50 Hz
5 digits, 7-segment, 14.2 mm (.56")
Red or green LED
Minus sign plus 4 red LED lamps for relays
Flashes full-scale
Voltage, standard
Voltage, optional
Frequency
Power Isolation
Analog Output (optional)
Output Levels
Current compliance
Voltage compliance
Scaling
Resolution
Isolation
Relay Outputs (optional)
Relay Types
Current Ratings
Output common
Isolation
Serial Data I/O (optional)
Board Selections
Protocols
Data Rates
Digital Addresses
Isolation
85-264 Vac or 90-300 Vdc (DC operation not UL approved)
12-32 Vac or 10-48 Vdc
DC or 47-63 Hz
250V rms working, 2.3 kV rms per 1 min test
4-20 mA, 0-20 mA, 0-10V, -10 to +10V (jumper selectable)
2 mA at 10V ( > 5 kΩ load)
12V at 20 mA ( < 600Ω load)
Zero and full scale adjustable from -99999 to +99999
16 bits (0.0015% of full scale)
250V rms working, 2.3 kV rms per 1 min test
2 Form C contact relays or 4 Form A contact relays (normally open)
2 or 4 Form A, AC/DC solid state relays (normally open)
8A at 250 Vac or 24 Vdc for contact relays
120 mA at 140 Vac or 180 Vdc for solid state relays
Isolated commons for dual relays or each pair of quad relays
250V rms working, 2.3 kV rms per 1 min test
Ethernet, Ethernet-to-RS485 server, USB, USB-to-RS485 server, RS485
(dual RJ11), RS485 Modbus (dual RJ45), RS232.
Modbus RTU, Modbus ASCII, Laurel ASCII protocol
300 to 19200 baud
247 (Modbus), 31 (Laurel ASCII),
250V rms working, 2.3 kV rms per 1 min test
Environmental
Operating temperature
Storage temperature
Relative humidity
Protection
LAUREL
ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 2
0°C to 60°C
-40°C to 85°C
95% at 40°C, non-condensing
NEMA-4X (IP-65) when panel mounted
Mechanical
Application Examples
Operation as a 4-20 mA Transmitter
With the optional analog output board, Laureate temperature
meters can serve as superb, isolated 4-20 mA transmitters. The
analog output is scaled to the display, which is linearized to °C
or °F and is exceptionally accurate. The analog output further
tracks the high read rate of the meter, at up to 60 readings per
second at 60 Hz power. Fast update rates are beneficial in
many closed-loop and PID control applications.
Operation as a Fast Controller
With the dual contact relay or dual solid state relay output board
options, Laureate temperature meters can serve as extremely
fast and accurate ON/OFF controllers for closed-loop
temperature control. Multiple setpoint operating modes are
individually selectable for each relay, as explained in the dualsetpoint controller section. Relay duty cycles and chatter can be
minimized with programmable hysteresis and time delays. High
duty cycles and extremely fast response times are possible with
the solid state relay, which has a typical response time of only
17 ms.
Operation as a Supervisory Monitor
By using the optional dual contact relay or dual solid state relay
output options, Laureate temperature meters can monitor
processes and provide alarms or shutoffs when these
processes exceed normal limits. A band deviation operating
mode can be selected for each relay, where an alarm is
generated whenever the reading is a selected number of counts
above or below the setpoint. Relay operation can be selected
as latching or non-latching. When an alarm or shutdown
condition is reached, a latched output will remain in the alarm
condition until it is reset by a front panel pushbutton, via the
serial interface, or via the rear connector.
LAUREL
ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 3
Ordering Guide
Create a model a model number in this format: L10000JC, IPC
DPM Type L Laureate Digital Panel Meter
Main Board 1 Standard Main Board, Green LEDs
2 Standard Main Board, Red LEDs
Power
(isolated)
Relay Output
(isolated)
Analog Output
(isolated)
Digital Interface
(isolated)
Signal Input
(isolated)
Add-on Options BL Blank Lens without Button Pads
0 85-264 Vac
1 12-32 Vac or 10-48 Vdc
0 None
1 Two 8A Contact Relays
2 Two 120 mA Solid State Relays
3 Four 8A Contact Relays
4 Four120 mA Solid State Relays
0 None
1 Isolated 4-20 mA, 0-20 mA, 0-10 V, -10 to +10V
0 None
1 RS232
2 RS485(dual RJ11 connectors)
4 RS485 Modbus (dual RJ45 connectors)
5 USB
6 USB-to-RS485 device server
7 Ethernet
8 Ethernet-to-RS485 device server
Thermocouple Type
JC Thermocouple Type J, -210°C to 760°C
JF Thermocouple Type J, -347°F to 1400°F
KC Thermocouple Type K, -347°C to 1372°C
KF Thermocouple Type K, -408°F to 2501°F
TC Thermocouple Type T, -257°C to 400°C
TF Thermocouple Type T, -430°F to 752°F
EC Thermocouple Type E, -240°C to 1000°C
EF Thermocouple Type E, -400°F to 1830°F
EC Thermocouple Type N, -245°C to 1300°C
NF Thermocouple Type N, -410°F to 2370°F
SC Thermocouple Type S, -46°C to 1768°C
SF Thermocouple Type S, -51°F to 3214°F
RC Thermocouple Type R, -45°C to 1768°C
RF Thermocouple Type R, -49°F to 3213°F
CBL01 RJ11-to-DB9 Cable
CBL02 USB-to-DB9 Adapter
CBL05 USB Cable, A to B
IPC Splash-proof Cover
BOX1 NEMA-4 Enclosure
BOX2 NEMA-4 Enclosure plus IPC
LAUREL
ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 4
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